Active Vendors Active Manufacturers and Distributors of Sealed Sources and Devices Page 1 of 71 (Ordered By Vendor Name) 7/1/2021 July 01, 2021 Agency: All Vendor Code Name and Address N/A 3-Phase Measurement AS Sandsliasen 40, Sandsli Bergen Norway 1227 3D, Danish Diagnostic Development A/S Dr. Neergaardsvej 5F 2970 Horsholm Denmark 0207 A&A Harris Enterprises dba Campbell/Harris Security Equipment Company 2500 Annalisa Drive Concord, CA 94520 N/A A. Ahlstrom Osakeyhtio Heinola Engineering Works Box 24 SF-18101 Heinola 10 Finland N/A AB Atomenergi 911 Hansen Way Studsvik Sweden N/A ABB Industrial Systems, Ltd. Finnabair Industrial Park Dundalk Co Louth Ireland 0109 ABB, Inc. 579 Executive Campus Drive Westerville, OH 43082 0106 Abbott Laboratories 1400 Sheridan Road North Chicago, IL 60064 0744 AC Rochester Division of General Motors Corporation 1300 North Dort Highway, Dept. 32-27-4 Flint, MI 48556 1201 Acuren Inspection, Inc. 101 Underwood Road, Building J La Porte, TX 77571 N/A ADAC UGM Medical Systems 3611 Market Street Philadelphia, PA 19104 Active Vendors Page 2 of 71 7/1/2021 1421 Advanced Combat Solutions 333 Las Olas Way CU1 Fort Lauderdale, FL 33301 0149 Advanced Detection Tech Inc. 5 Old Town Park Rd., South End Plaza, Unit 28 New Milford, CT 06776 1064 Advanced Gauging Technologies, L.L.C. 8430 Estates Court Plain City, OH 43064 1359 Advanced Medical Isotope Corporation 6208 West Okanogan Avenue Kennewick, WA 99336 1401 Advanced Nuclide Technologies, LLC 21756 Green Stable Square #309 Ashburn, VA 20147 1016 Advanz Measurement and Control Systems, Inc. 2800 Indian Ripple Road Dayton, OH 45440 N/A AEA Technology - QSA GmbH Gieselweg 1 D-38110 Braunschweig Germany 0117 AEG-Telefunken Corporation Route 22 - Orr Drive Somerville, NJ 08876 0121 AFMOA/SGOR 110 Luke Avenue, Room 405 Bolling AFB, DC 20332-7050 0120 AGAR Instrumentation, Inc.

Houston, TX 0348 Agilent Technologies, Inc. Little Falls Site 2850 Centerville Road Wilmington, DE 19808 N/A Agilent Technologies, Shanghai Co. Ltd. 412 Ying Lun Road Pu Dong, Shanghai China N/A Ai Cambridge Limited Road Pampisford, Camabridge CB24EF 1139 Ai Qualitek London Road Pampisford, Cambridge United Kingdom Active Vendors Page 3 of 71 7/1/2021 1494 AIS Gauging 5350 N. 13th Street Terre Haute, IN 47805 N/A All-Russian Research Institute of Automatics 10100, Moscow, Russia Central Post Office, P.O. 9 Moscow Russian Federation N/A All-Russian Research Institute of Automation (VNIIA) 22 Sushchevskaya ulitsa Moscow Russian Federation N/A Alpha Omega Services, Inc. 1282 Big Woods - Starks Road Vinton, LA 70668 1426 Alpha Tau Medical, Inc. One Union Street 3rd Floor Lawrence, MA 01840 N/A Alpha Tau Medical, Ltd. School of Physics, Suite 323 Tel Aviv University, Klausner St. 240 Tel Aviv Israel 0125 Alpha-Beta-Gamma Corp.

0760 Alpha-Omega Services, Inc. 1282 Big Woods Starks Road Edgerly, LA 70668 1106 Alpha-Omega Services, Inc. 1282 Big Woods and Starks Road Edgerly, LA 70668 N/A Ambertec OY P.O. Box 58 Hannukenkuja SF-02271 ESPOO Finland N/A Amdel Flemington Street Frewville SA 5063 N/A Amdel Limited 11 West Thebarton Road West Thebarton, SA 5031 Australia 1058 American Airlines Maintenance & Engineering Center P.O. Box 582809 Tulsa, OK 74158-2809 Active Vendors Page 4 of 71 7/1/2021 0703 American Clinical Laboratories Research and Development 10465 Roselle Street San Diego, CA 92121 0133 American Optical Corproation P.O. Box 361 Bedford, MA 01730 1420 Ameriglo Holdings, LLC 645 Hembree Parkway Suite K Roswell, GA 30076 N/A Ameriglo, LLC 645 Hembree Parkway Suite K Roswell, GA 30076 N/A Amersham Health White Lion Road Amersham Buckinghamshire, N/A Amersham International 2536 South Clearbrook Drive Arlington Heights, IL 60005 N/A Amersham-Buchler GmbH & Co. KG Gieselweg 1 Braunschweig Germany 0148 Anadrill, Inc. 200 Macco Boulevard Sugar Land, TX 77478 N/A Analytical Instrument Development

West Chester, PA 19380 N/A Analytical Instruments, Ltd. London Road Pampisford, Cambridge CB2 4EF United Kingdom 1017 Analytics 1380 Seaboard Industrial Blvd. Atlanta, GA 30318 0144 Anderson Effects, Inc.

Mentone, CA N/A ANSTO Radiopharmaceuticals and industrials New Illawarra Road Menai NSW 2234 Australia 0145 Antek Instruments, Inc 6005 North Freeway Houston, TX 77022 Active Vendors Page 5 of 71 7/1/2021 0146 Anyl-Ray Corporation

Sarasota, FL N/A Apollo Fire Detectors Ltd. 36 Brookside Road Havant, Hampshire, POL 1JH United Kingdom 0135 Applied Biosystems 850 Lincoln Center Drive Foster City, CA 94404 N/A Applied Biosystems, Sweden AB Seminariegatan 30 S-170 15 Uppsala Sweden 0707 Applied Research Laboratories P.O. Box 129 Sunland, CA 91040 1419 APS Technology, Inc. 7 Laser Lane Wallingford, CT 06492 1292 Arclin Performance Applied 15859 Dyne Drive Hayward, WI 54843 0151 ARCO Chemical Company Division of Atlantic Richfield

Karthaus, PA 16845 0150 Arjay Sales, Inc. 3832 North Hubbard Street Milwaukee, WI 53212 1404 Armson USA, LLC 28 Stroudwater Street Unit #10 Westbrook, ME 04092 1188 ATI Medical 10954-A Viafrontera San Diego, CA 92127 0161 Atlan-Tech ,Inc 1345 Hembree Road Roswell, GA 30076 1262 Atom Chem Corporation

Bayshore, NY 0709 Atomic Products Corporation

Center Moriches, NY 11934 Active Vendors Page 6 of 71 7/1/2021 N/A Austrailian Isotopes New Illawarra Road Lucas Heights New South Wales Australia 0107 Automata,Inc. 2225 Northwest Parkway, Suite 160 Marietta, GA 30067 0261 Baker Hughes Oilfield Operations, Inc. 2001 Rankin Road Instrument Characterization Buil Houston, TX 77073-5109 0176 Ball Packaging Product, Inc. 1509 South Macedonia Avenue Muncie, IN 47302 N/A Ball Watch Company SA 41 A Route de Chene in Geneva Switzerland 1023 Barber-Coleman INDEW Corp. 1354 Clifford Avenue Loves Park, IL 61132 0372 Barber-Colman Indev, Inc. 88 Boyd Avenue East Providence, RI 02914 1074 Bard Brachytherapy, Inc. 295 East Lies Road Carol Stream, IL 60188 0178 Barneby-Cheney Company 835 North Cassady Avenue Columbus, OH 43219 0180 Barry-Wehmiller Electronics 13327 U.S. 19 South Clearwater, FL 33546 N/A Bay FM 8652 Thornton Avenue Newark, CA 94560 N/A Bebig Isotopentechnik Und Umweltdiagnostik GMBH Robert-Roessle-Strasse 10 D-13125 Berlin Germany 0183 Becker Delft N.V.

Delft 0182 Bedford Engineering Corporation (BEC) 124 South Road Bedford, MA 01730 Active Vendors Page 7 of 71 7/1/2021 1213 Belden Engineering 3924 Sunset Avenue Montrose, CA 91020-1840 0625 Berthold Systems Berthold Systems Parkway West Ind. Park, 611 Parkway View Drive Pittsburgh, PA 15205 0425 Berthold Technologies Calmbucher Strasse 22 - Postfach 160 D-7547 Wildbad 1 Germany N/A Berthold Technologies GmbH & Co. KG Calmbacher Strasse 22 Postfach 160 D-75312 Bad Wildbad Germany 1031 Berthold Technologies U.S.A., LLC 99 Midway Lane Oak Ridge, TN 37830 1211 Best Lighting Products 1213 Etna Parkway Etna, OH 43018 1140 Best Lighting Products, Inc. 201 East Stevens Ave. Santa Ana, CA 92707 1345 Best Lighting Products, Inc. dba Foreverlite, Inc. 6865 Speedway Blvd. Suite Q108 Las Vegas, NV 89115 1312 Best Medical Belguim S.A. Zoning Industrial B-6220 Fleurus 0187 Best Medical International A Division of Best Industries 7643-B Fullerton Road Springfield, VA 22153 N/A Best Theratronics, Ltd. 413 March Road Ottawa, Ontario Canada 1307 Best Theratronics, Ltd. 7643 Fullerton Road Springfield, VA 22153 1115 Best Vascular, Inc. 4350 International Boulevard Norcross, GA 30093 Active Vendors Page 8 of 71 7/1/2021 0188 Bio-Nuclear Mearsurements, Inc. P.O. Box 445 Ipswich, MA 01438 0714 Bio-Nucleonics, Inc. 1910 N.E. Miami Ct. Miami, FL 33132 0713 Bio-Rad 32nd and Griffin Avenue Fullerton, CA 92634 N/A Biosources, Ltd 4 Bud Way Suite 4 Nashua, NH 03063 1006 Biotronik GMBH & Co.

Berlin Germany N/A Biotronik GMBH & Company

Berlin Germany 0190 Biotronik Sales, Inc. 9228 Fourth Street North St. Petersburg, FL 33704 N/A Bodenseewerk Perkin-Elmer & Company 77770 Uberlinger Bodensee Germany 0189 Bondar-Clegg & Company, Ltd. Instrument Division 6 Place Nepean, Ontario Canada N/A Bonding Company 4A Kut Shing Building 8 Kut Shing St. Chai Wan, Hong Kong China 0175 Boulder Scientific Company 598 3rd Street Mead, CO 80542 1315 Brachytherapy Services, Inc. 20200 Sunburst Street Chatsworth, CA 91311 0196 Brandhurst , Inc 87 Sand Pit Road Danbury, CT 06810 Active Vendors Page 9 of 71 7/1/2021 N/A Brandhurst Company, Ltd. P.O. Box 70 Buckhinghamshire, HP 12 3PS United Kingdom 1004 Bristol-Myers Squibb Company P.O. Box 191 New Brunswick City, NJ 08903-0191 0166 British Lighting Division

N/A British Lighting Preventer

Leicesterershire United Kingdom 0165 British Ministry of Defense Royal Ordnance WFV Division Nottingham United Kingdom N/A Bruker Chemical Analysis B.V. Herculesweg 8 Amundsenweg 1122401 4462 GP Goes Netherlands N/A Bruker Daltonik GmbH Permoserstrasse 15 FRG-04318 Leipzig 011-49-341-2 Germany 1101 Bruker Detection Corporation 40 Manning Drive Billerica, MA 01821 0192 Brun Corporation

Columbus, OH 0112 BSI Instruments, Inc. 101 Corporation Drive Aliquippa, PA 15001-4863 1205 BSK Industries, Inc. 9385 Chesapeake Drive North Royalton, OH 44133 0123 BST eltromat International GmBH Industriestrafse 1 Wenden 0193 Budd Company

N/A BWXT Medical Ltd. 581 Coronation Blvd. Cambridge Ontario Canada Active Vendors Page 10 of 71 7/1/2021 1490 BWXT Medical Ltd. 109 Ramsey Place Lynchburg, VA 24501 1375 BWXT NOG Technologies Inc. 2016 Mt. Athos Road Lynchburg, VA 24505-0785 0199 C.E. IN-VAL-CO P.O. Box 556 Tulsa, OK 74101 N/A C.E.A. Department Des Radioelements B.P. No. 2, 91 Gif-Sur Yvette France 0202 C.I.S. Radiopharmaceuticals, Inc. 5 Deangelo Drive Bedford, MA 01730 0210 Cammenga and Associates, LLC 2011 Bailey Street Dearborn, MI 48124 N/A Campbell Pacific Nuclear Corporation 130 South Buchanan Circle Pacheco, CA 94553 1305 Campbell Security Equipment Company 2500 Annalisa Drive Concord, CA 94520 0504 Canberra Industries, Inc. 800 Research Parkway Meriden, CT 06450 0218 Capintec, Inc. 136 Summitt Avenue Montvale, NJ 07645 1411 Cardinal Health 414, LLC 7000 Cardinal Place Dublin, OH 43017 N/A Carlo Erba Instrumentazion S.P.A. P.O. Box 20090 20090 Rodano Milan 0221 Carolina Nuclear Instruments

Research Triangle Park, NC 27709 0162 Centergy Technology 4180 Gleanor Hill Road Ann Arbor, MI 48105 Active Vendors Page 11 of 71 7/1/2021 1253 Centurion Systems, Inc. 1304 East Wendover Avenue Greensboro, NC 27405 N/A CERCA Tour AREVA 92 084 PARIS LA DEFENSE Cedex France 0229 CGR MEV Rue De La Miniere B.P. NO.34, 78530 BUC France 1168 Chappell Hill Logging Systems, Inc. P.O. Box 7 Chappell Hill, TX 77426 1034 Che Scientific, Incorporated 2410 Robinson Street Colorado Springs, CO 80904 1417 ChemPro Technologies Inc. (dba Environics USA, Inc.) 1107 Wonder Dr., Suite 103A Round Rock, TX 78681 1280 Chemring Sensors and Electronic Systems, Inc. 4205 Westhouse Commons Drive Charlotte, NC 28273 N/A Chrompack BV P.O. Box 519 2600 Am Delft Netherlands 0204 Chrompagic-Packard PO Box 519 Delft Netherlands 0222 Cintichem, Inc. P.O. Box 816 Tuxedo, NY 10987 N/A Cirtronics Corporation 528 Route 13 South Milford, NH 03055 1334 City Labs, Inc. 12491 SW 134th Court Unit #23 Miami, FL 33186 N/A CivaTech Oncology, Inc. 2810 Meridian Parkway, Suite 144 Durham, NC 27713 Active Vendors Page 12 of 71 7/1/2021 1311 CivaTech Oncology, Inc. P.O. Box 14310 Research Triangle Park, NC 27709 1259 Clear Path Technologies, Inc. 561 W. Rincon Street Corona, CA 92880 0715 Clinical Assays, Inc. 237 Binney Street Cambridge, MA 02142 0223 Cobe Labs

0227 Columbia Scientific Ind. Corp. 11950 Jollyville Road Austin, TX 78759 0228 Combustion Engineering

N/A Commisariat a l'Energie Atomique (CEA) Dept. Des Appl. Et Do La Metrologie Des Rayonnemen Boite Postale No. 21 91193 Gif-Sur-Yvett, Cedex France 0230 Comprobe, Inc. 9632 Crowley Road Crowley, TX 76036 0717 Conam Inspection, Inc.

Tulsa, OK 74101 N/A Conco Systems 135 Sylvan Street Verona, PA 15147 N/A Conco Systems 701 Seldon Avenue Verona, PA 15147 1393 Connectec Company, Inc. 1701 Reynolds Avenue Irvine, CA 92614 N/A Conto Control

Seigan Germany 0233 Control Data Corporation 2300 East 88th Street Minneapolis, MN 55425 0236 Coratomic, Inc. P.O. Box 434 Indiana, PA 15701 Active Vendors Page 13 of 71 7/1/2021 0208 CPN Int'l Division of Instrotek, Inc. 5052 Commercial Circle Units A & B Concord, CA 94520 N/A Curium Netherlands B.V. Westerduinweg 3 NL 1755 LE Petten Netherlands N/A Cyclotron Co., Ltd. 1 Bondarenko Square Obninsk Russian Federation 1148 Cytyc Surgical Products II 3581 Haddon Hall Drive Buford, GA 30519 0546 D.A. Pittman, Ltd.

Weybridge, Surrey United Kingdom 0719 Dale Electronics P.O. Box 180 Yankton, SD 57078-0180 N/A Dani S.P.A.

Via Rovani 10 Italy N/A Danish Diagnostic Development A/S Dr. Neergaardsvej 5F DK 2950, Horsholm Denmark 0249 Dart Environmental and Services Company 3725 North Dunlap Street Saint Paul, MN 55112 0381 Data Measurement Corporation P.O. Box 490 Gaithersburg, MD 20884 N/A DBA Systems, Inc. 1200 South Woody Burke Road Melbourne, FL 32902-0550 N/A Defiance Systems SA Ch.de la Vuarpillere 35 1260 Nyon Switzerland 0254 Delphi Control Systems, Inc. 2806 Metropolitan Place Pomona, CA 91767 Active Vendors Page 14 of 71 7/1/2021 0155 Department of the Army U.S. Army TACOM Life Cycle Mgmt Command ATTN: AMSTA-MSP-Z, MS: 485 Warren, MI 48397-5000 0206 Detection Systems , Inc. 130 Perinton Parkway Fairpoint, NY 14450 1325 Dewpointer Repair 7 Kemp Drive Chatham, IL 62629 0721 Diagnostics Biochem Products 12306 Exposition Boulevard Los Angles, CA 90064 0129 DICKEY-john Corporation 5200 DICKEY-john Road P.O. Box 10 Auburn, IL 62615 N/A Dicon Systems Limited 719 Claysen Road Toronto (Weston), Ontario Canada N/A Die-Matic LLC 23 Cooper Ridge Road Belfast, ME 04915 1374 Die-Matic, Inc. 23 Cooper Ridge Road Belfast, MA 04915 1413 Diligistics, LLC 1093 Ridge Road Windsor, ME 04363 1347 Dilon Technologies, Inc. 12050 Jefferson Avenue Suite 340 Newport News, VA 23606 0265 DMW Geophysical 1973 West North Temple Salt Lake City, UT 84116 0262 Dow Chemical

0258 Dowty Electronics Company

Cheltenham, Gloucester United Kingdom N/A DPS Instruments, Inc. 760 South Rochester Avenue Ontario, CA 91761 Active Vendors Page 15 of 71 7/1/2021 1202 Drager Safety AG & Co. KGaA Volmerstrabe 7B 12489 Berlin Germany 1121 DraxImage, Inc. 75 Talcott Road Suite 50 Williston, VT 05495 N/A Draxis Specialty Pharmaceuticals, Inc. 16571 Autoroute TransCanada Highway Kirkland, Quebec Canada 1224 DRS Sustainment Systems, Inc. 201 Evans Avenue St. Louis, MO 63121 1319 DRS Technologies 645 Anchors Street Fort Walton Beach, FL 32548 1242 DuPont Safety & Protection Barley Mill Plaza, Bldg. 23 P.O. Box 80023 Wilmington, DE 19880-0023 1051 Dynalec Corporation 87 West Main Street Sodus, NY 14551-0188 0487 DYNO Overlays, Inc. P.O. Box 764 Hayward, WI 54843 0725 E. R. Squibb and Sons, Inc. Division of Medotopes P.O. Box 4000 Princeton, NJ 08540 N/A E.I. Company Ltd. Shannon Free Airport, Co. Clare Shannon Ireland N/A E.I. Dupont 331 Treble Cove Road N. Billerica, MA 01862 0753 E.I. DuPont De Numours & Co. 549 Albany Street Boston, MA 02118 0234 E.S.C Resources, Inc. 28 Riverbend Road Montgomery, IL 60538 N/A EADS SODERN 20 Avenue Descartes BP 23 - 94451 Limeil-Brévanne France Active Vendors Page 16 of 71 7/1/2021 0723 Corporation 22 Pleasant Street South Natick, MA 01760 N/A Earth Science Materials 110 East Main Street Florence, CO 81226 N/A Eberline Instruments GmbH Radiometrie Postfach 1638 D-19006 Erlangen (R.F.A) Germany N/A Eckert & Ziegler Analytics 1380 Seaboard Boulevard Atlanta, GA 30318 N/A Eckert & Ziegler BEBIG GmbH Robert-Rossle StraBe10 13125 Berlin Germany 1394 Eckert & Ziegler BEBIG, Inc. 8550 United Plaza Boulevard Suite 702 Baton Rouge, LA 70809 N/A Eckert & Ziegler CESIO RADIOVA 1 102 27 Prague 10 Czech Republic 0406 Eckert & Ziegler Isotope Products dba Isotope Products Laboratories 24937 Avenue Tibbitts Valencia, CA 91355 0510 Eckert & Ziegler Isotope Products 24937 Avenue Tibbits Valencia, CA 91355 N/A Eckert & Ziegler Nuclitec GmbH Gieselweg 1 Braunschweig Germany N/A Eckert & Ziegler Radiopharma GmbH Gieselweg 1 38110 Braunschweig Germany 1390 Eckert & Ziegler Radiopharma, Inc. 63 South Street Suite 110 Hopkinton, MA 07148 N/A Eckert and Ziegler (IPL) Germany Niederlassung Braunschweig Harxbutteler Strasse 3 Braunschweig Germany Active Vendors Page 17 of 71 7/1/2021 0274 EG & G Ortec 100 Midland Road Oak Ridge, TN 37830 N/A ELCAN Optical Technologies (Division of Raytheon Systems Canada Ltd.) 450 Leitz Road Midland, Ontario Canada 0278 Electric Distributors, Inc. P.O. Box 1728 Anchorage, AK 99501 1036 Electronic Systems Spa S.S. 229, Km. 12.200 28015-Momo Italy 1055 Electronic Systems Spa S.S. 229, Km.-12,200 28015 - Momo - (NO) Italy N/A Elekta Instrument AB P.O. Box 7593 - Birger Jarlsgatan 53 SE-103 93 Stockholm Sweden N/A Elekta Instrument SA P.O. Box 330 1211 Geneva 12 Switzerland 0269 Elekta, Inc. 400 Perimeter Center Terrace Suite 50 Atlanta, GA 30346 0497 Elekta, Inc. 400 Perimeter Center Terrace Suite 50 Atlanta, GA 30346 0113 Elena Research, LLC d/b/a Adaptive Technologies Industries 11641 Columbia Park West Jacksonville, FL 32258 N/A ELGEMS, Ltd. Hayoma St. 10 P.O. Box 170 Tirat Hacarmel Israel 0201 Ellis Pharmecutical Consulting Inc. 913 State Road Princeton, NJ 08540 0276 Elscint , Inc. 505 Main Street Hackensack, NJ 07601 Active Vendors Page 18 of 71 7/1/2021 N/A Endress + Hauser GmbH + Co., KG Hauptstrasse 1 D 79689 Maulburg Germany 1302 Endress and Hauser GmbH+Co. Division Level + Pressure 2350 Endress Place Greenwood, IN 46143-9772 0799 Energy Technologies, Inc. (ETI) 8819 Joe Daniels Road Knoxville, TN 37931 0308 Enrad Corporation 16224 Gundry Avenue Paramount, CA 90723 1190 ENVIRONICS 4401 Eastport Parkway Port Orange, FL 32127 N/A Environics OY Graaninintie 5 Tyomiehenkatu 2 P.O. Box 349 50100 Mikkeli Finland 0279 Environmental Chemical Specialties 3700 East Mira Loma Avenue Anahiem, CA 92806 N/A ESM Andersen Instruments GmbH Frauenauracher Strasse 96 D-91056 Erlangen Germany 0314 Etrac, Inc. 10903 Melton View Lane Knoxville, TN 37931 0116 Eurotherm Gauging Systems, Inc. The Technology Center 900 Middlesex Turnpike Billerica, MA 01821-3929 0394 Eurotherm International Kineron Gauging Systems, Inc. c/o Eurotherm Corp. Kineron Gauging Systems Division 11513 Sunset Roa Reston, VA 22090 1127 eV Products A Division of II-VI, Inc. 373 Saxonburg Boulevard Saxonburg, PA 16056 0177 Evenlite, Inc. 220 VFW Avenue Grasonville, MD 21638 Active Vendors Page 19 of 71 7/1/2021 N/A Exxon Production Research Company 3120 Buffalo Speedway P.O. Box 2189 Houston, TX 77252-2189 0281 F&M Scientific Corporation

1015 F. Oderkirk

Deer Park, WA 99006 N/A FAG Kugelfischer GeorgSchafer KGaA Industrial Gauging and Controls Division P.O. Box 1660 D-8529 Erlanger Germany N/A Fagus Grecon Hannoversche Strasse 58 31042 Alfeld-Hannover Germany N/A FAI Instruments s.r.1. Via Aurora 15-00013 Fonte Nuova (Roma) Italy 0282 Fairchild Weston Systems, Inc. Kennedy Drive Archbald, PA 18403 0283 Federal Emergency Managment Agency 500 C Street S.W. Washington, DC 20472 N/A Ferranti Defense Systems Ltd Laser Systems Group Electro-Optics Dept., Robertson Ave. Edinburgh United Kingdom 0286 Filtec

0288 Finnigan Corporation 845 West Maude Avenue Sunnyvale, CA 94086 0291 Fischer Technology, Inc. 750 Marshall Phelps Road Windsor, CT 06095 0292 Fisher Body Division of General Motors Corporation 30001 Van Dyke Avenue Warren, MI 48090 Active Vendors Page 20 of 71 7/1/2021 0294 Fisher Scientific Company 711 Forbes Avenue Pittsburgh, PA 15219 1240 Fluke Electronics Corp dba Fluke Biomedical 28775 Aurora Road Solon, OH 44139 N/A FMC Kongsberg Subsea AS Multi Phase Meters Fabrikkveien 21 4066 Stavanger Norway 1351 FMC Technologies, Inc. 11740 Katy Freeway Suite 100 Houston, TX 77079 0205 Food Instument Co. PO Box 166 Federalsburg, MD 21632-0066 1246 Foss Therapy Services, Inc. 8794 Avalon Street Phone #: 909-980-6229 Altaloma, CA 91030 1357 Foss Therapy Services, Inc. 5938 Satsuma Avenue North Hollywood, CA 91601 1418 Foss Therapy Services, Inc. 5938 Satsuma Avenue North Hollywood, CA 91601 0726 Frank Barker Associates, Inc P.O. Box 30 Pequannock, NJ 07440 N/A French Republic Atomic Energy Commision Boite Postale 21 99190 Gif Sur Yvette France 0298 Frontier Technology Corporation 1641 Burnett Drive P.O. Box 486 Xenia, OH 45385 N/A FSUE State Scientific Center of Russia Research Institute of Atomic Reactors Division of Dimitrovgrad-10, Ulyanovsk Region Russian Federation N/A Fyrnetics (Hong Kong) Ltd. 7th Floor, Tin Fung Industrial Mansion 63 Wong Ch Aberdeen Hong Kong Active Vendors Page 21 of 71 7/1/2021 0317 Fyrnetics, Inc. 1055 Stevenson Court, Suite 102-W Rosselle, IL 60172 0683 G. Siempelkamp GMBH

D-4150 Krefeld Germany N/A G.A.S. Gesellschft fur analytische Sensorsysteme mbH BioMedizinZentrum Dortmund Otto-Hahn-Str. 15 Dortmund Germany 0588 G.D. Searle Company

0299 Gaines Division

See General Nuclear, IN 0300 Gamma Industries, Inc. P.O. Box 2543 Baton Rouge, LA 70821 0301 Gamma Instruments, Inc. 49050 Milmont Drive Fremont, CA 94538 0353 Gamma Instruments, Inc. 724 North Highland Ave. Aurora, IL 60506 1056 Gammamed USA, Inc. 492 Sutton Street Eagle East Complex North Andover, MA 01845 0303 Gammatron, Inc. 5703 Ethridge Street Houston, TX 77087 N/A Garvan Enterprises Ltd Wing Hing Industrial Building 83-92 Chai Wan Kok Tsuen Wan, N.T. Hong Kong 0272 GE Infracstructure - Security 12345 S.W. Leveton Road Tualatin, OR 97062 0226 GE Medical Systems General Electric Corp. 7455 New Ridge Road Hanover, MD 21076 1049 GE Medical Systems 3000 North Grand View Blvd., W-641 Waukesha, WI 53188 Active Vendors Page 22 of 71 7/1/2021 0306 Gearhart- Owen Industries P.O. Box 34456 Houston, TX 77034 N/A Gene Lowery, Inc. Industrionics Division

Suscannna, NJ 1252 General Dynamics Armament & Technical Products, Inc. Charlotte Operations 4205 Westinghouse Commons Drive Charlotte, NC 28273 0310 General Dynamics Land Systems, Inc. P.O. Box 1852 Warren, MI 48001 N/A General Electric Company, Nuclear Center P.O. Box 460 Pleasonton, CA 94566 0312 General Electric Hitachi Nuclear Energy America, LLC Vallecitos Nuclear Center Vallecitos Road Pleasanton, CA 94586 1032 General Electric Medical Systems (GE Healthcare) Global Nuclear/PET Business 3000 North Grand View Blvd Waukesha, WI 53188 0321 General Nucleonics, Inc. 2807 Metropolitan Place Pomona, CA 91767 0324 General Radioisotopes Products, Inc.

San Ramon, CA 94583 0729 General Store Post Office

Ford, WA 99013 0323 Generation 2, Inc. 10580 Barkley, Suite 101 Overland Park, KS 66212 1492 Geotek Coring, Inc. c/o TDI Brooks International 14391 South Dowling Road College Station, TX 77845 N/A GeoTek Limited 4 Sopwith Way Drayton Fields Daventry Northants United Kingdom Active Vendors Page 23 of 71 7/1/2021 N/A Gilligan Engineering Services Ltd. (GES) Andrews House Princess Way Low Prudhoe, Northumberland United Kingdom 1416 Global Gauge Corporation 3200 Kettering Blvd. Moraine, OH 45439 N/A Goodwill Precision Machinery Co., Ltd. 68, Shizhu Road Dongcheng, Dongguan China 0332 Graseby Dynamics Limited Park Avenue Bushey, Hertfordshire Watford, Herts WD2 2BW United Kingdom 0326 Graseby Dynamics, Ltd./ PYE Dynamics, Ltd. Botanic House 100 Hills Road Cambridge CB211Q United Kingdom N/A Graseby Security, Ltd. Unit 3-4 Odhams Trading Estate, St. Albans Road Waterford Herts WD2 5JW United Kingdom 0101 Graseby STI P.O. Box 2470 Waldron, AR 72958 1254 Gray Wireline Services, Inc. 1103 East Lake Drive Weatherford, TX 76087 1035 Grecon, Inc. 7747 SW Cirrus, Building 26 Beaverton, OR 97009 0776 Grinnell Fire Protection Systems, Inc. 27865 Clemens Road Westlake, OH 44145 1506 GT Medical Technologies 350 Hills Street, Suite 108 Richland, WA 99354 1038 Guidant Corporation 8990 Kirby Drive Suite 200 Houston, TX 77054 0328 Gulf Energy and Environmental Systems Active Vendors Page 24 of 71 7/1/2021 0334 Gulf Radiation Technology Division of Gulf Oil Corp.

San Diego, CA 92101 N/A Gunson's Sortex, Ltd. Warton Road Stratford London E 15 2JU United Kingdom 1488 Haimo America, Inc. 2901 Wilcrest Drive Suite 285 Houston, TX 77042 N/A Halliburton Geophysical Services Worden Gravity Meter Division Mid 1980's until 19 Houston, TX 0307 Halliburton Logging Services, Inc. Vacuum Devices Facility P.O. Box 1936 Fort Worth, TX 76101 0340 Halliburton Manufacturing and Leasing Company, Inc. 100 East Halliburton Blvd. Duncan, OK 73533 1424 Harrison Reed, Inc. 333 Las Olas Way CU #1 Ft. Lauderdale, FL 33301 N/A Hauni Maschinenbau AG Kampchaussee 8-32 21033 Hamburg 80 Germany N/A Hauni-Werke Korber and Company K.G. Kampchaussee 14-22 2050 Hamburg 80 Germany 1230 Hazen Research, Inc. 4601 Indiana Street Golden, CO 80403 0731 Heary Bros. Lightning Protection 11292 Moore Road Springville, NY 14141 1040 Hemisphere Forwarding, Inc. 7 Cerro Street Inwood, NY 11696 0347 Heraeus American Vacuum, Inc. Active Vendors Page 25 of 71 7/1/2021 N/A Herfurth GMBH P.O. Box 500 648 Hamburg Germany 0338 Herurth, GMBH

Germany 0352 Hesco, Inc. 2139 Greenville Road LaGrange, GA 30240 0599 Heuft USA, Inc. 2820 Thatcher Road Downers Grove, IL 60515-4029 N/A Heuft Systemtechnik GMBH Am Wind 1 56659 Burgbrohl Germany 1382 Hi Viz, LLC 620 S. Adams Street Laramie, WY 82070 N/A Hi-Q Environmental Products Company 7386 Trade Street San Diego, CA 92121 0349 Hispano- Martin S.A.

Vois-Colombes France 1075 Hitachi Medical Systems, America 1959 Summit Commerce Park Twinsburg, OH 44087 0351 Hitman Nuclear & Development Corp. 9190 Red Branch Road Columbia, MD 21043 0330 HNU Systems, Inc. 160 Charlemont Street Newton Highlands, MA 02161-9987 0363 HNU Systems, Inc. 1003 Larsen Drive Oak Ridge, TN 37830 1041 HNU-Nordion Ltd P.O. Box 1, Atomite 5A3 FIN-00371 Helsinki Finland N/A Hochiki Corporation 10-43 Kaimmosoki-2 Chome, Shinagawa-Ku Tokyo Japan Active Vendors Page 26 of 71 7/1/2021 0355 Hochiki America Corporation 7051 Village Drive Buena Park, CA 90621-2268 N/A ASCa, Inc. 500 Brooksbank Avenue North Vancouver, BC Canada 0571 Honeywell International, Inc. 3079 Premiere Parkway, Suite 100 Duluth, GA 30097 0501 Honeywell International, Inc. Radiological Operations 2500 West Union Hills Drive Phoenix, AZ 85027-5139 N/A Honeywell Limited 500 Brooksbank Avenue North Vancouver, BC Canada N/A Honeywell Measurex, Ltd Waterford Industrial Estate Waterford Ireland 1138 Hopewell Designs, Inc. 5940 Gateway Drive Alpharetta, GA 30004 1232 Hotwell G.mb.H. Oedenburgerstrasse 6 A-7013 Klingenbach Austria 1296 Hotwell Ges; m.b.h. Odenburger Strasse 6 A-7013 Klingenbach, Austria 1297 Hotwell US, LLC P.O. Box 672721 Houston, TX 77267 N/A Houget Duesberg Bosson, S.A.

Belgium N/A Houston Technical Laboratories (Late 1940's until 1953) Houston, TX N/A Houten Int'l Technology, Ltd. Wing Hing Industrial Building 83-93 Chai Wan Kok St. Tsuen Wan, N.T. Hong Kong Active Vendors Page 27 of 71 7/1/2021 0733 Hubbard Scientific Company 1120 Halbleib Road Chippewa Falls, WI 54729 1039 Hughes Leitz Optical Technologies, Ltd 328 Ellen Street Midland, Ontario Canada 0356 Humboldt Scientific, Inc. 551D Pylon Drive Raleigh, NC 27606 0357 Hydronautics- Israel, Ltd.

0369 I-Lite Products, Inc. 1132 San Martin Drive Tucson, AZ 85704 0360 ICN Radiopharmaceutical, Inc. Life Science Group 2727 Campus Drive Irvine, CA 92664 0366 Idaho Industrial Instruments, Inc. 273 West Pacific Blackfoote, ID 83221 N/A IDS Intelligent Detection Systems (CA) 152 Cleopatra Drive Nepean, Ontario Canada 1248 IEC Electronics 105 Norton Street Newark, NY 14513 N/A IHC Holland N.V. P.O. Box 204 3360 AE Sliedrecht Netherlands N/A Impact Systems OY Kivelantie 5 70420 Kuopio Finland 0386 Impact Systems, Inc. 14600 Winchester Boulevard Los Gatos, CA 95030 0368 Imperial Chemical Industries, Ltd. P.O. Box 1 Billingham, Cleveland TS23 1LB United Kingdom Active Vendors Page 28 of 71 7/1/2021 1078 Implant Sciences Corporation 107 Audubon Road, #5 Wakefield, MA 01880-1246 N/A IMS Messsysteme GmbH Dieselstrasse 55 5628 Heiligenhaus Germany 1120 IMS Systems, Inc. 519 Myoma Road Mars, PA 16046 0395 In-Val-Co

1090 Indev Gauging Systems, Incorporated 6141 Avery Road P.O. Box 3667 Dublin, OH 43016 0335 Industrial Analytics Corp. (IAC) 11020 Solway School Road, Suite 105 Knoxville, TN 37931 1033 Industrial and Research Management Systems, Inc. 3940 Gantz Road Grove City, OH 43123 0378 Industrial Dynamics Company, Ltd. 3100 Fujita Street Torrance, CA 90505 0384 Industrial Nuclear Company, Inc. 14320 Wicks Blvd San Leandro, CA 94577 0555 Industrial Nuclear Company, Inc. 35 Flagship Drive North Andover, MA 08145 0387 Industrial Nucleonics Corporation 650 Ackerman Road Columbus, OH 43202 0391 Industrial Services and Supply Company, Inc. 2322 Carrollwood Lane Cordova, TN 38018 1210 Inficon, Inc. 2 Technology Place East Syracuse, NY 13057 0397 Inspection Equipment Manufacturing Corporation 2027 Sable Lane San Antonio, TX 78217 0398 Inspection Signal Services Subsidiary of Essex Services Company Active Vendors Page 29 of 71 7/1/2021 N/A Institute of Geological and Nuclear Sciences Ltd. 30 Gracefield Road Lower Hutt New Zealand 1241 Instrotek, Inc. 5908 Triangle Drive Raleigh, NC 27617 N/A Integrated Plant Electrokhimpribohr

Lesnoy City, Sverdlovsk Region Russian Federation N/A Inter-Pal GMBH Weislelstr 46 8520 Buckenhof 09131-55689 Germany N/A International Brachytherapy SA Zone Industrielle C B - 7180 Sneffe Belgium 0401 International Chemical and Nuclear Corp 2727 Campus Drive Irvine, CA 92664 1011 International Chemical and Nuclear Corp

0361 International Consumer Brands, Inc. 126 Monroe Turnpike Trumbull, CT 06611 0383 International Consumer Brands, Inc. 1901 Rutland Austin, TX 78758 N/A International Isotopes Idaho, Inc. 2325 West Broadway, Suite D Idaho Falls, ID 83402 1153 International Isotopes Idaho, Inc. 4137 Commerce Circle Idaho Falls, ID 83401 1068 International Isotopes, Inc. 3100 Jim Christal Road Denton, TX 76207-2600 1235 International Isotopes, Inc. 4137 Commerce Circle Idaho Falls, ID 83401 1025 International Radiography & Inspection Services, Inc 7620 Melrose Lane Oklahoma City, OK 73127 Active Vendors Page 30 of 71 7/1/2021 0735 Internetics 2275 South West Temple Salt Lake City, UT 84101 0545 Invensys Climate Controls Americas 191 East North Avenue Carol Stream, IL 60188 0402 IRT Corporation P.O. Box 85317 San Diego, CA 92138 1146 IsoAid, L.L.C. 7824 Clark Moody Boulevard Port Richey, FL 34668 1299 Isodose Control 3565 Ellicott Mills Drive Suite C-1 Ellicott City, MD 21043 N/A Isodose Control B.V. Maxwellstraat 16 6716 BX Ede Netherlands 1491 ISOFLEX Radioactive LLC (ISO-RAD) 108 Teal Street St. Rose, LA 70087 1353 Isolite 31 Waterloo Avenue Berwyn, PA 19312 1286 Isolite Corporation 31 Waterloo Avenue Berwyn, PA 19312 0404 Isomedix, Inc. 80 South Jefferson Road Whippany, NJ 07981 1060 Isomedix, Inc. 11 Apollo Drive 11 Apollo Drive Whippany, Nj 07981 1268 Isonics Homeland Security and Defense Corporation 5906 McIntyre Street Golden, CO 80403 1220 IsoRay 350 Hills StreetSuite 106 Richland, WA 99354-5411 1239 Isoscan Limited dba True View Limited 438 North Frederick Avenue Suite 220 Gaithersburg, MD 20877 Active Vendors Page 31 of 71 7/1/2021 N/A Isoscan Ltd: Subsidiary of Institute of Geological & Nuclear Sciences, Ltd 30 Gracefield Road Lower Hunt New Zealand 0375 Isotope Measuring Systems, Inc. 108 Blue Ridge Drive Cranberry Township, PA 16066 N/A Isotope Products Laboratories (IPL) 1800 North Keystone Street Burbank, CA 91504 N/A Isotope Products Laboratories, Inc. 24937 Avenue Tibbitts Valencia, CA 91355 N/A Isotopen Messsystene GMBH (Isotope Measuring Systems) Dieselstrasse 55 Postfach 10 03 52, 5628 Heiligenhaus Germany N/A Isotopen Technik Dr. Suuerewin, GmbH Bergische Strasse 16 D-5657 Haan Germany 0403 IsoVac Engineering, Inc. 614 Justin Avenue Glendale, CA 91201 N/A Israel Military Industries Weapons Division P.O. Box 7080 Tel-Aviv 61070 Israel 0405 Itere Corporation 323 Sinclair Frontage Road Milpitas, CA 95035 N/A IUT (Institut fur Umwelttechnologien) GmbH Justus-von-Liebig-Str.6 Berlin Germany 0407 J. G. Sylvester Associates, Inc. 900 Hingham Street Rockland, MA 02370 0598 J.L. Shepherd and Associates 1010 Arroyo Street San Fernando, CA 91340-1822 0435 Japan Aircraft Maintenance (America) Inc. [JAMCO] 1018 80th Street, S.W. Everett, WA 98203 Active Vendors Page 32 of 71 7/1/2021 N/A Jasch Industries Limited 43/5 Bahalgarh Road P. O. Bahalgarh - 131021 District Sonepat 0410 Jay Stuart Haft Company, Inc. Marine Equipment Distributors P.O. Box 11210 Bradenton, FL 33507 N/A JCS Institute of Nuclear Materials (INM) P.O. Box 29 Zarechny Sverdlovsk Region Russian Federation N/A John U. Hidalgo 1209 Lair Avenue Metairie, LA 70003 0408 Johnson & Johnson 501 George Street New Brunswick, NJ 08903 N/A Johnson Matthey Inc. DBA Tracerco P.O. Box 1 Belasis Hall Technology Park Billingham, Cleveland United Kingdom 0734 Johnson Matthey Inc. DBA Tracerco 4106 New West Drive Pasadena, TX 77507 N/A Joint-Stock Company State Scientific Center Research Institute of Atomic Rea Dimitrovgrad-10 Ulyanovsk Region Russian Federation 0737 Kaiser Aerospace Electronics 2222 West Peoria Avenue Phoenix, AZ 85020 0739 Kallestad Laboratories, Inc. 100 Lake Hazeltine Drive Chaska, MN 55318 1272 Kanawha Scales and Systems 5525 Chantry Drive Columbus, OH 43232 0798 KBM Manufacturing 15980 Chaney Thompson Road Huntsville, AL 38503 Active Vendors Page 33 of 71 7/1/2021 1158 Keens Tools, Inc. 49-1 Feng Hwa, Feng Hwa Tsuen Republic of China Shin Shyh Hsiang, Tainan Hsien Taiwan 0413 Keleket X-Ray

0653 Keymaster Technologies, Inc. 415 North Quay Street Kennewick, WA 99336 1497 KH Imports, LLC 4913 Allen Road Zephyrhills, FL 33541 1386 KRISS Industries 2697 International Parkway Virginia Beach, VA 23452 1368 KRISS USA, Inc. 912 Corporate Lane Chesapeake, VA 23320 N/A Krohne Measurement and Control GmbH & Company, KG Ludwig-Krohne-Strasse 5, Postfach 100 970 4100 Duisburg 1 Germany N/A KRONES AG

BohmerwaldstraBe5/Neutraubling Germany N/A Krones Incorporated 9600 South 58th Street Franklin, WI 53132 0374 Krones Incorporated Kroneseder Farmes, 24605 River Road Marengo, IL 60152 1266 Krones USA 6312 West Oakton Street Morton Grove, IL 60053 1087 Krupp Polysius, AG Graf Galen Str. 17 59269 Beckum Germany 0433 Kuakini Medical Center 347 West Kuakini Street Honolulu, HI 96817 0626 Lagus Applied Technology, Inc. 457 Corporate Drive Escondido, CA 92029 Active Vendors Page 34 of 71 7/1/2021 N/A Lanzhou Haimo Technologies Co. Ltd. Multiphase Flow Meter Manufacturing Unit No. 593, Zhang Sutan, Chengguan District Lanzhou, P.R., Gansu China 0429 LBO Assoc. 710 Livernois Ferndale, MI 48220 0417 LCN Closers P.O. Box 100 Princeton, IL 61356 N/A Lear-Seigler

Englewood, CO 1380 Legacy Supply Chain Services 500 Ships Landing Way New Castle, DE 19808 N/A Leidos, Inc. 10740 Thornmint Road San Diego, CA 92127 0215 Leidos, Inc. 2985 Scott Street Vista, CA 92081 1373 Leidos, Inc. 10740 Thornmint Road San Diego, CA 92127 0423 Level Link, Inc. 1205 West Berkley Avenue Orange, CA 92668 0638 Level Link, Inc. 1205 West Berkeley Orange, CA 92668 N/A Life Technologies Holdings Pte Ltd. Subsidiary of Thermo Fisher Scientific, Inc. Block 33 Marsiling Industrial Estate Rd. 3 #07-06 Singapore 0431 Link Systems, Inc. (USA) 11735 Bowman Green Drive Reston, VA 22090 1145 LitePro 3731 N Country Club Drive #525 Aventura, FL 33180 Active Vendors Page 35 of 71 7/1/2021 0421 Litton Medical Products, Inc. Profexray Division 515 East Touhy Avenue Des Plaines, IL 60018 0422 Lixi, Inc. 11980 Oak Creek Parkway Huntley, IL 60142 0741 LKB Instruments Inc. 9319 Gaither Road Gaithersburg, MD 20877 0740 LKB Wallac Oy PO Box 10 20101 Turku 20 Finland N/A LNI Electronics SA 109B Chemin duPont duCentrenaire Ch-1228 Plan-es-Quates Switzerland 0313 Lockheed Martin Corporation Lockheed Martin Aeronutronic 29947 Avenida De La Banderas Rancho Santa Margarita, CA 92688-7004 1116 Lockheed Martin Corporation, dba Lockheed Martin Missiles and Fire Control Orlando Ocala Operations 498 Oak Road Ocala, FL 34472 0582 Lockheed Martin Tactical Systems Division 459 Kennedy Drive Archbald, PA 18403-1598 0743 Louis Ried, Jr.

Boulder, CO N/A LSC Process - und Laborsysteme GmbH Carl - Borgward - Strasse 18 D-56566 Neuwied Germany 0534 LSC Process - und Laborsysteme GmbH Carl - Borgward - Strasse 18 D-56566 Neuwied Germany 0426 Ludlum Measurements, Inc. P.O. Box 810 501 Oak Street Sweetwater, TX 79556 N/A Lux Biotechnology, Ltd. ETTC Biospace Kings Building Edinburgh EH9 3JF United Kingdom Active Vendors Page 36 of 71 7/1/2021 1501 LV Liberty Vision Corporation 300 West Rd., Unit 2 Portsmouth, NH 03801 N/A M&A Packaging Services Ltd. Spring Lane North Malvern Link, WR14 4BU United Kingdom 1108 M&K Chemical Engineering Consultants, Inc. dba Gamma Surveys 16511 Space Center Blvd., Suite 400 Houston, TX 77058 N/A M. Hensoldt & Sohne Optische Werke AG Zeiss-Gruppe West Germany, Gloelstrasse 3-5 D-6330 Wetzlar 1 Germany N/A MAC Isotopes, LLC 2325 West Broadway Suite D Idaho Falls, ID 83402 0436 Magnaflux Corporation 7300 West Lawrence Avenue Chicago, IL 60656 0438 Mahlo America P.O. Box 2825 Spartanburg, SC 29304-2825 1276 Mahlo America, Inc. 575 Simuel Road P.O. Box 2825 Spartanburg, SC 29303 N/A Mahlo GMBH & Co. Donaustr. 12 D-93342 Saal/Donau Germany 0440 Mallinckrodt Diagnostics 2703 Wagner Place Maryland Heights, MO 63043 N/A Mallinkrodt Medical BV Westerduinweg 3 1775 Le Petten Netherlands 1348 Malvern Panalytical, Inc. formerly PANalytical, Inc. 117 Flanders Road Westborough, MA 01581 0350 Mar-Chem, Inc. P.O. Box 2311 Greenville, SC 29602 Active Vendors Page 37 of 71 7/1/2021 N/A Marathon Watch Company 30 Mural Street Unit 19 Richmond Hill, Ontario Canada 0505 Marathon Watch Company, Ltd. 317 Broad Street Montoursville, PA 17754 N/A Martin Marietta Energy Systems, Inc P.O. Box X Oak Ridge, TN 37831 1389 MASEP Global Distributors, LLC 1755 Kirby Pkwy Suite 102 Memphis, TN 38120 1350 MASEP Infiniti Med. Science Tech. Development Co., Ltd. Patricia Sweet - RSO 17870 Castleton Street, Suit City of Industry, CA 91748 N/A MASEP Medical Science Technology Development (Shenzen) Co., Ltd Room 601, 14th Building, Sofware Yard, Tech Mid Road 1st, High-Tech Zone Shenzen China 1072 Matsushita Industries 343 Carol Lane Elmhurst, IL 60126 N/A Maxtron Corp. 152 Continental Dallas, TX 75207 1271 Mb Microtec 90 State Street Albany, NY 12207 0446 mb-microtec (USA) 1093 Ridge Road Windsor, ME 04363 N/A MB-Microtec AG Freiburgstrasse 624 3172 Niederwangen Switzerland 0443 McDonnell Douglas Astronautics Company Western Division, Douglas Laboratories 2955 George Washington Way Richland, WA 99352 0432 MDH Industries, Inc. 426 West Duarte Road Monrovia, CA 91016 Active Vendors Page 38 of 71 7/1/2021 0169 MDS Nordion - A division of MDS (Canada) Inc. 447 March Road Ottawa, Ontario Canada N/A MDS Nordion Haan GmbH Bergische Str. 16 D-42781 Haan Germany 0444 Mead Diagnostics, Inc.

Bedford, MA N/A Meddings Radiographics. LTD Kingsley Close, East Way Lee Mill Industrial Estate Ivybridge, Devon, PL21 9LL England 0136 Medi-Physics, Inc. d/b/a GE Healthcare 3350 North Ridge Avenue Arlington Heights, IL 60004 0448 Medi-Physics, Inc. 900 Durham Avenue South Plainfield, NJ 07080 1119 Meprolight, Inc. (Corporate Office) c/o Law Offices of Reuven Klein 666 Third Avenue, 10th Floor New York, NY 10017 N/A Meprolight, Ltd. Hof HaCarmel 30805 Kibbutz Maayan Zvi Israel 1124 Met One Instruments 1600 Washington Blvd. Grants Pass, OR 97526 0454 Meteorology Research, Inc. 464 West Woodburgy Road Altodena, CA 91001 0701 Metorex Incorporated 250 Phillips Blvd Princeton Crossroads Crp.Center Ewing, NJ 08618 N/A Metorex International, Oy P.O. Box 85 SF-02201 ESPOO Finland N/A Metso Automation, OY 87400 Kajaani Kehraamontie 3 Finland Active Vendors Page 39 of 71 7/1/2021 0457 Mettronix Company 4774 Murietta Street Chino, CA 91710 N/A MGP Instruments SA Route D'Eyguieres BP1 13113 Lamanon France 1147 MGP Instruments, Inc. 5000 Highlands Parkway Suite 150 - 770-432-2744 Smyrna, GA 30082 0453 Mick Radio-Nuclear Instruments, Inc. 1470 Outlook Avenue Bronx, NY 10465 1176 Micro Motion, Inc. d/b/a Roxar 11100 Brittmoore Park Drive Houston, TX 77041 1504 Microspect Corporation 493 Hickory Lane Mt. Gilead, OH 43338 0745 Miles Laboratories

Elkhart, IN 46514 N/A Milltronics, Ltd.

Peterborough, Ontario Canada 0456 Milltronics, Ltd.

Watertown, NY 13601 0458 Mine Safety Appliance Company P.O. Box 429 Pittsburgh, PA 15235 0747 Minneapolis- Honeywell Regulator Company P.O. Box 312, MS MN 17-3636 Minneapolis, MN 55413 0459 Minnesota Mining and Manufacturing TLAAP Building 590

New Brighton, MN 55112 0460 Minnesota Mining and Manufacturing 3M Health Physics Services 3M Center, Building 244-2E-06 St. Paul, MN 55144-1000 1505 Mirion Technologies (Canberra), Inc. 800 Research Parkway Meriden, CT 06450 Active Vendors Page 40 of 71 7/1/2021 0463 Mirtone Industries, Inc. 510 West 5Th Avenue Naperville, IL 60540 N/A Mirtone Industries, Ltd. 425 Alness Street, Downsview Toronto, Ontario Canada 0461 Modern Equipment Corporation

Port Washington, WI 1137 Molecular Analytic 25 Loveton Circle Sparks, MD 21152 N/A Molesgaard Medical Rungstedeuj 13 DK-2970 Horsholm Denmark 0462 Molins Richmond, Inc. 3900 Carolina P.O. Box 6159 Richmond, VA 23222-0159 0467 Monsanto Chemical Intermediaties Company P.O. Box 1311 Texas City, TX 77592 0466 Monsanto Company, Dayton Laboratory Station B-Box 8 1515 Nicholas Road Dayton, OH 45407 1263 Morpho Detection, Inc. 7007 Gateway Blvd. Newark, CA 94560 1282 Morpho Detection, Inc. 7151 Gateway Boulevard Newark, CA 94560 1283 Morpho Detection, Inc. 3211 Progress Drive Lincolnton, NC 28092 1326 Morpho Detection, Inc. 7151 Gateway Boulevard Newark, CA 94560 0399 Morpho Detection, LLC 23 Frontage Road Andover, MA 01810 0468 Morrison-Knudson Company, Inc P.O. Box 7808 Boise, ID 82729 Active Vendors Page 41 of 71 7/1/2021 0473 Mott, Inc. Subsidiary of R.C. Industries 17 Hughes Street Irvine, CA 92713 0749 Mottler Instrument Corporation

Princeton, NJ 08540 0376 MSA Baseline Industries Subsidiary North Star Route Lyons, CO 80540 0751 National Institute of Standards and Technology

Gaithersburg, MD 20877 0471 NDC Technologies 8001 Technology Blvd. Dayton, OH 45424 N/A Nemoto and Company, Ltd. 1-15-1 Kamiogi Suginami-Kum Tokyo 167 Japan 1422 NeoTek Energy, Inc. 2600 Technology Drive Suite 400 Plano, TX 75074 1329 NeoVista, Inc. 47865 Fremont Blvd. Fremont, CA 94538 N/A Neusoft Positron Medical Systems Co., Ltd. No. 16 Shiji Road Hunnan New District Shenyang Liaoning P.R. China 0474 Neutron Products 22301 Mt. Emphraim Road P.O. Box 68 Dickerson, MD 20842 N/A New Japan Aircraft Maintenance

Japan 0478 Nicolet Instrument Corporation 5225 Verona Road Madison, WI 53711 1161 Ningbo TLC Plastic Products Co., Ltd. South of No. 329 National Highway Zhangqi Town, Cixi City, Zhejiang Province China 0164 Niton Corporation 1130 Ten Rod Road Suite C-207 North Kingstown, RI 02852 Active Vendors Page 42 of 71 7/1/2021 N/A Nittan Company, Ltd. 11-6, 1-Chome, Hatagaya, Shibuya-Ku Tokyo 151 Japan 0481 Nittan Corporation 1299 Rand Road Des Plaines, IL 60016 0757 NMC

N/A Nohmi Bosai, Ltd. 7-3 Kudan Minami, 4-Chome Chiyoda-bu Tokyo Japan 0220 Nordion (Canada), Inc. A Division of MDS (Canada), Inc. 447 March Road Ottawa, Ontario Canada N/A Nordion International, Inc. P.O. Box 13500 447 March Road Kanata, Ontario, CN K2K 1X8 N/A Nordisk Elektrisk Apparatfabrik

Denmark 0255 North American Detectors, Inc. (NADI) Butterfield Industrial Park 30 Spur Lane El Paso, TX 79906 0484 North American Philips Company, Inc. 100 East 42nd Street New York, NY 10017 1172 Northrop Grumman Guidance & Elec. Co., Inc. Laser Systems Division 2787 South Orange Blossom Trail Apopka, FL 32703 1399 Northrop Grumman Systems Corporation Laser Systems Division 2787 South Orange Blossom Apopka, FL 32703 0483 Notifier Company

1052 Nova Therapeutic Systems

0502 NRD, Inc. 2937 Alt Boulevard North Grand Island, NY 14072 Active Vendors Page 43 of 71 7/1/2021 N/A NTP Radioisotopes (Europe) S.A. 6220 Fleurius Zoning Industrial Avenue de l'Esperance 1 Belgium 0489 Nuclear Associates, Inc 100 Voice Road Carle Place, NY 11514 0490 Nuclear Electronic Controls Inc.

Research Triangle Park, NC 27709 0491 Nuclear Enterprises

San Carlos, CA 94070 0492 Nuclear Enterprises Ltd..

Beenham, Reading United Kingdom 0493 Nuclear Environmental Engineering, Inc.

Houston, TX 77001 0494 Nuclear Equipment Corporation

San Carlos, CA 94070 1013 Nuclear Instruments Corp. 2300 West Camden Road Milwaukee, WI 53201 0496 Nuclear Instruments Corporation 65 Grove Street P.O. Box 178 Rockland, MA 02370 0498 Nuclear Materials and Equipment Corporation

0685 Nuclear Metals

Concord, MA 01742 0500 Nuclear Products Company P.O. Box 5178 South El Monte, CA 91733 0750 Nuclear Research and Development Nuclear Instruments and Accessories P.O. Box 1261 Berkley, MI 48072 0509 Nuclear Scanning Services, Inc.

Houston, TX Active Vendors Page 44 of 71 7/1/2021 1328 Nuclear Scanning Services, Inc. 2437 Bay Area Blvd. PMB 297 Houston, TX 77058 0506 Nuclear Semiconductor Division of United Scientific Corporation 345 East Middlefield Road Mt. View, CA 94043 0508 Nuclear Sources and Services, Inc. dba NSSI/Sources & Services, Inc., NSSI 5711 Etheridge Street Houston, TX 77087 N/A Nuclear Technology Institute Shenzhen University Number 3688 Nanhai Road Nanshan District Shenzhen China 0514 Nucleonic Data Systems 2811 McGain Avenue Irvine, CA 92714 0516 Nucleonic Industries 2255 East Aviation Highway Tucson, AZ 85713 N/A Nucletron Engineering B.V. Waardgelder 1 3905 TH Veenendaal Netherlands N/A Nucletronics APS Maalov Vaerkstedsby 87 DK-2750 Maalov Denmark N/A nuclitec GmbH Gieselweg 1 Postfach 11 49 D-38110 Braunschweig Germany 1499 NUCMEDCOR (NH), LLC. 24 Crown Street Nashua, NH 03060 1066 Nycomed Amersham 900 Durham Avenue South Plainfield, NJ N/A Nycomed Amersham Plc. White Lion Road Amersham England Buckinghamshire United Kingdom 0518 Oak Ridge National Laboratory 1 Bethel Valley Road Oak Ridge, TN 37830 Active Vendors Page 45 of 71 7/1/2021 0246 Oceaneering International, Inc. Solus Schall Division 1650 Farm Road 2725 Ingleside, TX 78362 1502 Ohio Lumex Co., Inc. 30350 Bruce Industrial Pkwy Solon, OH 44139 0512 Ohmart Corporation 1405 Jamike Drive Erlanger, KY 41018 1336 Olin Winchester, LLC Lake City Army Ammunition Plant 25201 East State Route 78 Independence, MO 64051 N/A Omnitron International, Inc. 1282 Big Woods Starks Road Edgerly, LA 70668 1281 Oncology Systems 119 Teal Street St. Rose, LA 70087 N/A Oncology Systems, Inc. 206 North Randolph Street Suite 300 Champaign, IL 61280 N/A OneSubsea Processing AS Sandslikroken 140 P.O. Box 174 Sandsli Norway 1247 OneSubsea Processing, Inc. 4646 W Sam Houston Parkway North Houston, TX 77041 N/A Optic-Electronic Corporation 11477 Pagemill Rd. Dallas, TX 75201 N/A Orlando Operations 5600 Sand Lake Road Orlando, FL 32819 N/A OSI Electronics, Inc. 12525 Chadron Avenue Hawthorne, CA 90250 0523 Overhoff Technology Corporation P.O. Box 182 Milford, OH 45150-9705 N/A Owlstone Medical Limited 183 Cambridge Science ParkMilton Road Cambridge CB4 0GJ United Kingdom Active Vendors Page 46 of 71 7/1/2021 1321 Owlstone, Inc. 19 Ludlow Road Suite 202 Westport, CT 06880 N/A Oxford Analytical Instruments, Ltd. 20 Nuffield Way Abingdon, Oxon United Kingdom 0235 Oxford Instruments Measurement, Inc. 945 Busse Road Elk Grove Village, IL 60007-6098 0143 Oxford Instruments, Inc. Analytical Systems Div. 130a Baker Ave. Ext. Concord, MA 01742 N/A OY Scienta AB Valimotie 1 A SF-00380 Helsinki Finland N/A P.A. Mayak 31 Lenin Street Ozyorsk, Chelyabinsk Region Russian Federation N/A P.W. Allen and Co., Ltd. Allen House, Alexandra Way Ashchurch Business Cen Tewkesbury United Kingdom 0526 Pacific Air Industries

1324 Pacific Northwest 902 Battelle Blvd. P.O. Box 999 Richland, WA 99352 0529 Packard Instrument Company 2200 Warrenville Road Downers Grove, IL 60515 0527 Packard-Becker B.V.

Delft Netherlands 0795 Panasonic Technologies, Inc./Mierl 9401 West Grand Avenue Franklin Park, IL 60131-3430 0761 Pantex P.O. Box 966 Malibu, CA 90265 Active Vendors Page 47 of 71 7/1/2021 0296 Panther Systems Northwest, Inc P.O. Box 5279 Vancouver, WA 98668-5279 1217 Particle Measuring Systems 5475 Airport Boulevard Boulder, CO 80301-2339 N/A PartnerTech, Inc. 2222 Northmont Parkway Suite 200 Duluth, GA 30096 N/A PE Instruments Asia PTE 13-01 Peninsula Plaza 111 North Bridge Road Singapore 0617 Singapore 0533 Peco Controls Corporation 1616 Culpepper Avenue Modesto, CA 95351 1020 Performance Materials NA Inc. P.O. Box 1089 Orange, TX 77630 1284 Perkin Elmer Life and Analytical Sciences 2200 Warrenville Road Downers Grove, IL 60515 0536 PerkinElmer ASLS, Inc. 710 Bridgeport Avenue Shelton, CT 06484 1371 PerkinElmer Health Sciences, Inc. 68 Elm Street Hopkington, MA 01748 1294 PerkinElmer LAS (Wallace Oy) Mustionkatu 6 FI-20750 Turku Finland N/A PerkinElmer Singapore Pte., Ltd. 28 Ayer Rajah Crescent Singapore Singapore 0762 Pharmacia Laboratories, Inc. 800 Centennial Avenue Piscataway, NJ 08854 0543 Pharmacia LKB Wallac OY P.O.Box 10 20101 Turku 10 Finland 0219 Pharmalucence, Inc. 10 De Angelo Drive Bedford, MA 01730 Active Vendors Page 48 of 71 7/1/2021 0537 Philips Electronic Instruments, Inc. 85 McKee Drive Mahwah, NJ 07430 0102 Philips Medical System ADAC Laboratories 540 Alder Drive Milpitas, CA 95035 0538 Philips Medical Systems Inc.

Shelton, CT 06484 0104 Phillips Medical Systems, America 595 Miner Road Highland Heights, OH 44143 1503 Phoenix, LLC 2555 Industrial Drive Monona, WI 53713 N/A Photovac, Inc. 176 Second Drive Waltham, MA 02451-1166 Canada 1181 Photovac, Inc. 176 Second Avenue Waltham, MA 02451-1166 0540 Physikalisch-Technische Werkstatten

Werkstatten Germany N/A Picker-Andrex

Denmark 0544 Pipe Recovery Systems, Inc. 1462 B Brittmoore Road Houston, TX 77043 N/A Tecnologica, S.p.A. Via Caboto, 19 Trieste Italy 0548 Plastic Applicators, Inc.

1215 Plexus Corporation 4 Copeland Drive Ayer, MA 01432 0550 Pneumat-A-Ray Products Active Vendors Page 49 of 71 7/1/2021 1344 Portacat Industries, LLC c/o Dade Moeller and Associates, Inc. 438 North Frederick Avenue Suite 220 Gaithersburg, MD 20877 1141 Positron Corporation 9001 Airport Blvd., Siute 303 Houston, TX 77061 0551 Princeton Gammatech, Inc. 1200 State Road Princeton, NJ 08540 1363 Probe Technologies Holdings, Inc. 1132 Everman Parkway Fort Worth, TX 76140 0746 Process/Polited Technology Area Plant 4, Flint West Complex AC Delco Systems, 300 N. Chevrolet Flint, MI 48555 1383 Protec Instrument Corporation 38 Edge Hill Road Waltham, MA 02451 N/A Provalid AB Avtalsvagen 15 S-227 61 Lund Sweden N/A Pye Unicam, Ltd.

Cambridge United Kingdom N/A QSA Global GmbH Gieselweg I Braunschweig Germany 0628 QSA Global, Inc. Radiation Products Division 40 North Avenue Burlington, MA 01803 1059 QSA Global, Inc. QSA, Inc. 40 North Avenue Burlington, MA 01803 1495 Quad Plus, LLC 1919 Cherry Hill Road Joliet, IL 60433 0695 Quantum Chemical Corporation USI Division 8805 N. Tabler Road Morris, IL 60450-9988 Active Vendors Page 50 of 71 7/1/2021 0764 R.E. Skaggs

0558 RAD/IRID 305 Ritchie Road Forestville, MD 20743 N/A RADEC ApS Sodalsvej 10 DK-8220 Brabrand Denmark 1109 Radiance Medical Systems, Inc. 13700 Alton Parkway, Suite 160 Irvine, CA 92618 0559 Radiation International, Inc.

0560 Radiation Machinery Corporation

0561 Radiation Materials Corporation 124 Calvary Street Waltham, MA 0563 Radioactive Sources Division of Baird-Atomics

N/A Radioisotope Centre Polatom 05-400 Otwock-Swierk Poland 0763 Radium Chemical Company, Inc. 161 East 42nd Street New York, NY 10017 0564 RADX Corporation P.O. Box 19164 Houston, TX 77024 N/A RAIMS Limited FSUE "Mayak" 1 Giles Road, Halton Camp, Aylesbury buckinghamshire United Kingdom 1370 RAM Services, Inc. 510 County Highway V Two Rivers, WI 54241 0765 Ranger Engineering Corporation 3132 Bryan Street Fort Worth, TX 76110 N/A Rapiscan Laboratories, Inc. 9030 Bellhurst Way, #125 West Palm Beach, FL 33411 Active Vendors Page 51 of 71 7/1/2021 1267 Rapiscan Systems 2805 Columbia Street Torrance, CA 90503 1249 Rapiscan Systems Company 3232 W. El Segundo Blvd. Hawthorne, CA 90250 1250 Rapiscan Systems Neutronics & Advanced Technologies Corp 2950 Patrick Henry Drive Santa Clara, CA 95054 N/A RC Tritec AC Speicherstrasse CH-9053 Teufen Switzerland N/A RC Tritec AG Speicherstrasse 60a, POB 147 Teufen Switzerland 0767 RCA Products P.O. Box 914 Waltham, MA 02154 N/A Real Time Instruments Pty Ltd. Lot J Mackay Marina Village Mackay, Queensland Australia N/A Reed-Curtis

0565 Republic Corporation

0568 Research Appliance Company (RAC)

Allison Park, PA 15101 N/A Reviss Services (UK) Limited 179 Brook Drive Milton Park Abingdon OXON United Kingdom N/A Rexnord, Inc. 5103 W. Beloit Road Milwaukee, WI 53214 N/A RGI Industriemessgerate GmbH D-7541 Straubenhardt 1 Benzstrabe 4, Postfach 16 Germany 0769 RIA Products Active Vendors Page 52 of 71 7/1/2021 N/A RITVERC GmbH 10, Kurchatov Street St. Petersburg Russian Federation 0697 Rixson-Firemark, Div. Yals Security, Inc 9100 W. Belmont Ave. Franklin Park, IL 60131 0573 RMD Instruments, Inc. 44 Hunt Street Watertown, MA 02172 0572 Robertshaw Controls Company P.O. Box 26544 Richmond, VA 23261 0574 Rockwell International P.O. Box 4192 Anaheim, CA 92803 0576 Ronan Engineering Company Measurements Division 8050 Production Drive Florence, KY 41042-3028 0577 Ronan Engineering, Ltd. 84 Northline Road Toronto, Ontario Canada 0412 Rosemount Kay-Ray/Sensall, Inc. 1400 Business Center Drvie Mount Prospect, IL 60056 N/A Roxar Flow Measurements AS P.O. Box 112 4065 Stavanger Norway 0570 RS Holding (aka Reuter Stokes)

0774 S - Tron 303 Ravendale Drive Mountain View, CA 94043 N/A SABIA, Inc. 4323 Commerce Circle Idaho Falls, ID 83402 1195 SABIA, Inc. CORPORATE HEADQUARTERS 10919 Technology Place San Diego, CA 92127 1320 SABIA, Inc. 15070 Avenue of Sciences Suite 200 San Diego, CA 92128 Active Vendors Page 53 of 71 7/1/2021 1005 Safenight Technologies, Inc. 2121 Electric Road Roanoke, VA 24018 0339 Saint-Gobain Crystals and Detectors A Division of Saint-Gobain Ceramics and Plastics 6801 Cochran Road Solon, OH 44139 0241 Sanders Medical Products, Inc. 10475 Dutchtown Road Knoxville, TN 37932 N/A Sandia National Laboratories 1515 Eubank, SE Alberquerque, NM 87185 N/A Saphymo- Srat

Paris France 0771 Sargent-Welch Scientific Company 7300 Linder Avenue Skokie, IL 60077 N/A Scan Detectronic Laboratories A/S Plastvanenget 9 9560 Hadsund Denmark 0485 Scan Detectronic Laboratories, Inc. 512 Danbury Road New Milford, CT 06776 0232 Scan Technologies, Inc. 147 11th Avenue, Suite 300 South Charleston, WV 25303 0469 Scan Technologies, Inc. 303 Jacobson Drive Rock Branch Industrial Park Poca, WV 25159 0716 Scan Technologies, Inc. 189 Leighs Grove Court P.O. Box 519 Grayson, GA 30017 N/A Scantech International Pty Ltd. 143 Mooringe Avenue South Austrailia Camden Park Australia N/A Schlumberger Oilfield (S) Pte Ltd Singapore Well Testing Center 1 Benoi Crescent Singapore Singapore Active Vendors Page 54 of 71 7/1/2021 0586 Schlumberger Technology Corporation 300 Schlumberger Drive MD 121 Sugar Land, TX 77478 0773 Schwartz/Mann Jr. Mountain View Avenue Orangeburg, NY 10962 0212 Science Applications International Corp. P.O. Box 2501 Oak Ridge, TN 37831 0214 Science Applications International Corp.

Sunneyvalle, CA 0216 Science Applications International Corp.

Santa Clara, CA 0217 Science Applications International Corp.

Rockville, MD 0772 Science Applications International Corp. 1030 McConville Road, Unit 7 Lynchburg, VA 24502 0780 Science Applications International Corp. 2109 Air Park Rd. Albuquerque, NM 87106 0590 Science Applications International Corp. (SAIC) 1257 Tasman Drive Sunnyvale, CA 94089 1069 Scienta Oy Ab Jorvas Hitech Center 02320 Jorvas Finland 0677 Scientech, Inc. P.O. Box 118 Pullman, WA 99163 1107 Scientific Drilling International, Inc. 1100 Rankin Road Houston, TX 77073 0593 Scientific Measurement Systems, Inc. 2201 Donley Drive Austin, TX 78758 0775 Scientific Products 1430 Waukegan Road McGaw Park, IL 60085 Active Vendors Page 55 of 71 7/1/2021 1306 Scintrex Trace Corporation 300 Parkdale Avenue Ottawa, Ontario Canada 0591 Sea Quest, Inc. 2151 Las Palmas Drive Carlsbad, CA 92008 0587 Seaman Nuclear Corporation 7315 South First Street Oak Creek, WI 53154 1154 Seamen's Medical Solutions 200 Prosperity Drive Knoxville, TN 37932 0777 Searle Analytic, Inc. 2000 Nuclear Drive Des Plaines, IL 60018 0589 Searle Diagnostics, Inc.

N/A Sediment Instr. Research and Development, Inc. SIRAD Inc. Suite 511 Metro Center Building, 1518 5th Avenue Moline, IL 61265 1112 SEE Co., Inc. 6975 Washington Ave S Suite 250 Edina, MN 55439 N/A Seiler Instruments and Manufacturing Co., Inc. 3433 Tree Court Industrial Blvd. St. Louis, MO 63122 0594 Self-Powered Lighting, Ltd. 8 Westchester Plaza Elmsford, NY 10523 N/A Seltek IMES OSB No: 8 Cerkesli Mahallesi Demirciler Osb/Dilovasi/Kocaeli Turkey N/A Sensor Technology (S-Tec) Ringtunveien #2 P.O. Box 179, N-1713 Graalum Norway N/A Sensor Technology AS P.O. Box 179 Sarpsborg Norway Active Vendors Page 56 of 71 7/1/2021 N/A Sensortechnik und Elektronik Pockau GmbH (STEP SiedlungsstraBe 5-7 Pokus Germany 1189 Sentek Corporation 1160-B Alum Creek Drive Columbus, OH 43209 0595 Sentex Sensing Technology, Inc. 553 Broad Avenue Ridgefield, NJ 07657 N/A Shanghai Fenghua Radio Factory 238 Guang Xi Bei Road Shanghai China N/A Shanghai Syncor Pharmaceuticals Co., Ltd. 528 Chung Dong Road Xin Zhuang Industry Zone Min Shanghai 201108 China N/A Shenzhen CIC-QSA Global Building 7, No. 2 Road Nantou Guankou, Nanshan Di Shezhen China N/A Shenzhen CICAM Manufacturing Co., Ltd. Block 12, Autuoshan High-Tech Industrial Park Xinsha Road, Shajing Street, Baoan District Shenzhen, Shenzhen China N/A Shield Source, Inc.

Peterborough, Ontario Canada 0656 Shield Source, Inc. Route 2, Box 19C VFW Road Grasonville, MD 21638 0600 Shimadzu Scientific Instruments, Inc. 7102 Riverwood Road Columbia, MD 21046 0601 Shimadzu Seisakusho, Ltd.

Kyoto Japan N/A Sibel, Ltd. Arbuzov str. 1/1 Novosibirsk, Russia Russian Federation Active Vendors Page 57 of 71 7/1/2021 0578 SIE, Inc. Route 5, P.O. Box 214 Fort Worth, TX 76126 0604 Siemens Gammasonics, Inc. Nuclear Medicine Division 2000 Nuclear Drive Des Plaines, IL 60018 1067 Siemens Medical Imaging Solutions USA, Inc. 810 Innovation Drive Knoxville, TN 37932 0237 Siemens Medical Solutions USA, Inc. Molecular Imaging 810 Innovation Drive Knoxville, TN 37932 0605 Siemens Medical Solutions USA, Inc. Molecular Imaging 2501 Barrington Road Hoffman Estates, IL 60192-2061 0606 Siemens Medical Solutions USA, Inc. X-Ray Division 685 Liberty Avenue Union, NJ 07083 1487 Sig Sauer 72 Pease Blvd. Newington, NH 03801 0607 Sigma Laboratories Systems, Inc.

1131 Signtex, Inc. 220 VFW Avenue Graysonville, MD 21638 N/A Silva Sweden AB, Kuskvagen 4, S-191-47 Sollentuna Sweden 0784 Simplimatic Engineering Company [SECO] P.O. Box 11709 Lynchburg, VA 24506 N/A Sintermetallwerk Krebsoge Postfach 5100 D-5608 Radevormwald 1 Germany N/A Sirtex Germany Manufacturing GmbH Industriepark Hoeschst Building G808 Fankfurt am Main Germany Active Vendors Page 58 of 71 7/1/2021 N/A Sirtex Medical Pty Ltd Shop 6, 207 Pacific Highway St. Leonards, NSW Australia N/A Sirtex Singapore Manufacturing Pte Ltd 50 Science Park Road #01-01 The Kendall Singapore Science Park II Singapore 1229 Sirtex Wilmington, LLC Unit 2-4 16 Upton Drive Wilmington, MA 01887 N/A Smiths Detection, Edgewood 22202 Lakeside Boulevard Edgewood, MD 21040 0163 Smiths Detection, Inc. 2202 Lakeside Boulevard Edgewood, MD 21040 0263 Smiths Detection, Inc. 2202 Lakeside Blvd. Edgewood, MD 21040 1122 Smiths Detection, Inc. 7030 Century Drive Mississuaga, Ontario Canada N/A Smiths Detection, Inc. (UK) Century House Maylands Avenue Hemel, Hertfordshire United Kingdom N/A Smolsys Ltd Platz 4 6039 Root Switzerland 1423 Smolsys USA, LLC, dba Smolsys USA Ltd. 1093 Ridge Road Windsor, ME 04099 1048 SMV America 8380 Darrow Road Twinsburg, OH 44087 N/A SMV International 41 rue Fourny ZI BP 112 78534 Buc France Active Vendors Page 59 of 71 7/1/2021 N/A Society Alcatel-Battery

Paris France 1088 SODERN 20 Avenue Descartes - B.P 23 94451 Limeil Brevann Cedex France 0610 Soiltest Inc. 2205 Lee Street Evanston, IL 60202 N/A Song Mark Enterprise Co., Ltd. No. 8 Lane, Sec 1, Nan Sun Road Lu Chu Hsiang, Taoyuan, Taiwan China 1169 SORAD Ltd/CESIO Ltd. Radiova 1 10227 Prague Czech Republic 0611 Sortex Company of America

0612 Source Production and Equipment Co., Inc. (SPEC) 113 Teal Street St. Rose, LA 70087-9691 N/A Sparton Electronics 30167 Power Line Road Brooksville, FL 34602 N/A Sparton Electronics 5612 Johnson Lake Road Deleon Springs, FL 32130 0615 Spectra-Physics 3333 North First Street San Jose, CA 95134 N/A Spectrum Techniques 106 Union Valley Rd. Oak Ridge, TN 37830 0779 Spire Corporation Patriots Park Bedford, MA 01730 N/A SRB Technologies (Canada) Inc. 320-140 Boundary Road Pembroke, Ontario Canada 0585 SRB Technologies, Inc. P.O. Box 5536 Winston-Salem, NC 27103 Active Vendors Page 60 of 71 7/1/2021 N/A SRI Instruments, Inc. 6440Sunset Corporate Drive Las Vegas, NV 89120 1083 Stan Huber Consultants 200 N. Ceder Road New Lennox, IL 60451 N/A State Scientific Centre of Russia Research Institute of Atomic Reactors Division of Radionuclide Sources & Preparations Dimitrovgrad-10, Ulyanovsk Region Russian Federation 0617 Statitrol 140 South Union Boulevard Lakewood, CO 80228 0618 Statitrol Corporation 1030 West Ellsworth Avenue Denver, CO 80223 0620 Stock Equipment Company 731 Hanna Building Cleveland, OH 44115 0689 Stock Equipment Company

0622 Stocker & Yale, Inc. 32 Hampshire Road Salem, NH 03079 0581 Strandberg Engineering Laboratories, Inc. 1302 North O'Henry Boulevard Greensboro, NC 27405 0608 Stratec Eleckstronick GmBH Im Laemmle 2 7534 Birkenfeld 2 Germany N/A Studsvik Nuclear AB 611 82 NYKOPING Sweden 0619 Sunburst Energy Systems, Inc. 1413-B Linda Vista Drive San Marcos, CA 92069 1198 Superior Energy Services, LLC 523 North Sam Houston Parkway East, Suite 200 Houston, TX 77060 N/A Surelite, Ltd. Priors Court, Priors Haw Road Weldon, Northants United Kingdom Active Vendors Page 61 of 71 7/1/2021 N/A Suunto OY

02920 Espoo 92 Finland 1071 Symbolic Displays, Inc. 1917 St. Andrew Place East Santa Ana, CA 92705 1498 Symetrica, Inc. 4 Lyberty Way Westford, MA 01886 N/A de Mexico SA de CV Av. Valle del Cedro 1681 Parque Industrial Interm Ciudad Juarez Mexico 0547 System Sensor, Division of Honeywell Sensor business of its Fire Solutions Group 3825 Ohio Avenue St. Charles, IL 60174 N/A T.E.M. Instruments, Ltd.

Crawley, Sussex United Kingdom 1024 Tapio Tech., Inc. Tekniikantie 12 FIN-02150 Espoo Finland 0633 Tatabanyai Szenbanyak Haldex International Cooperation Bureau

Hungary 0393 Taylor Instrument Company Industrionics Division Sybron Corporation Succasunna, NJ 07876 N/A Techcomp Europe, Ltd. dba Scion Instruments Stanleyweg 4 4462 GN Goes Netherlands 1385 Techcomp USA, dba Scion Instruments 4801 Southwest Parkway Suite 125 Austin, TX 78735 0631 Temco

Oliver Springs, TN 37840 Active Vendors Page 62 of 71 7/1/2021 0630 Tennelec, Inc. P.O. Box D Oak Ridge, TN 37830 1095 Tesla Vupjt

250 66 Zdiby Czech Republic 0686 Test-ER, Inc. 225 Mitchell Court A10, Chesapeake Square Addison, IL 60101 0783 Test-ER, Inc. 225 Mitchell Court A10, Chesapeake Square Addison, IL 60101 0632 Texas Instruments, Inc. P.O. Box 1444 Houston, TX 77001 N/A The Center of Instrument Engineering For Geophysics and Ecology

Novosibirsk Russian Federation 1340 The Charles Stark Draper Lab, Inc. 555 Technology Square Mailstop 64 Cambridge, MA 02139 0248 The Cyclotron Corporation 950 Gilman Street Berkeley, CA 94710 1111 The Dow Chemical Company 2301 North Brazosport Boulevard Freeport, TX 77541 0781 The DuPont Merck Pharmaceutical Company 331 Treble Cove Road North Billerica, MA 01862 N/A The Institute of Nuclear Physics and Chemistry of CAEP 64-2 Mianshan Road Mianyan, Sichuan Paraguay N/A The Isotope Factory State Institute of Applied Chemistry

St. Petersburg Russian Federation 0759 The Nucleus, Inc. 461 Laboratory Road Oak Ridge, TN 37830 Active Vendors Page 63 of 71 7/1/2021 1076 The Source, Inc. 2810 Siler Lane Sante Fe, NM 87505 0698 The University of Georgia Department of Biochemistry

Athens, GA 30602 0645 Theragenics Corporation 5203 Bristol Industrial Way Buford, GA 30518 1219 Thermo Eberline, LLC, dba Thermo Electron RM&P Radiation Measurement & Protection Division 26400 Broadway Avenue Oakwood Village, OH 44146 1287 Thermo EGS Gauging, LLC (formerly Thermo EGS Gauging, Inc.) 22 Alpha Drive Chelmsford, MA 01824 N/A Thermo Electron Corporation 18 Butler Boulevard Adelaide - 5950 Burbridge Business Park Australia 0141 Thermo Electron Corporation 5981 Airport Road Santa Fe, NM 87506 1062 Thermo Electron Corporation Thermo Electron RM&P 5981 Airport Road Santa Fe, NM 87506 N/A Thermo Electron RM&P Poole Sopers Lane Poole Dorset, BH17 7ER United Kingdom 1030 Thermo Environmental Instruments, Inc. 8 West Forge Parkway Franklin, MA 02038 0642 Thermo Finnigan LLC 2215 Grand Avenue Parkway Austin, TX 78728 N/A Thermo Fischer Scientific 1410 Gillingham Lane Sugar Land, TX 77478 1303 Thermo Fischer Scientific, Inc. 27 Forge Parkway Franklin, MA 02038 Active Vendors Page 64 of 71 7/1/2021 N/A Thermo Fisher Scientific 18 Butler Boulevard Burbidge Business Park Adelaide Australia N/A Thermo Fisher Scientific (Shanghai) Instruments Co., Ltd T71-6, No. 211, Qin Qiao Road Jinqiao Export Proc Pudong, Shanghai China N/A Thermo Fisher Scientific Messtechnik GmbH Frauenauracher Strasse 96 91056 Erlangen Germany 1234 Thermo Fisher Scientific, Inc. Environmental Instruments Division 27 Forge Parkway Franklin, MA 02038 1046 Thermo Gamma Metrics 10010 Mesa Rim Road San Diego, CA 92121 0305 Thermo Gamma Metrics, LLC 9389 Waples Street San Diego, CA 92121 N/A Thermo Messtechnik GmBH ESM Andersen Instruments GmbH Frauenauracher Strasse 96 D-91056 Eriangen Germany 1012 Thermo MF Physics LLC 4833 Centennial Boulevard Colorado Springs, CO 80919 N/A Thermo Niton Analyzers LLC 1130 Ten Rod Road North Kingston, RI 02852 0634 Thermo Process Instruments, L.P A subsidiary of Thermo Fisher Scientific 1410 Gillingham Lane Sugar Land, TX 77478 1396 Thermo Process Instruments, L.P. Thermo Fisher Scientific, Inc. 27 Forge Parkway Franklin, MA 02038 1159 Thermo Scientific Portable Analytical Instruments, Inc. 2 Radcliff Road Tewksbury, MA 01876 Active Vendors Page 65 of 71 7/1/2021 N/A Thorn Security Limited Technology Center The Summit, Hanworth Road Sunbury-on-Thames, Middlesex, TW16 5DB United Kingdom 0244 TLS Systems P.O. Box 42884 Tucson, AZ 85733-2884 0793 TLS Systems

Phoenix, AZ 0270 TMA/Eberline 5635 Kircher Boulevard N.E. Alberquerque, NM 87109 0639 TOSHIBA

0640 Tracer-Flo Industries Div. of TrioTech, Inc., 2040 N. Lincoln Burbank, CA N/A Tracerco P.O. Box 1 Belasis Hall Technology Park Billingham, Cleveland United Kingdom N/A Tracerco, Ltd. Belasis Hall Technology Park Billingham United Kingdom N/A Tracerco, Ltd. Belasis Hall Technology Park Billingham Cleveland United Kingdom N/A Tracerlab

1054 Trans World Airlines (TWA), Inc. Inspection Department/NDT 9200 N.W. 112th Street Kansas City, MO 64153 0418 Trijicon, Inc. 49385 Shafer Avenue P.O. Box 930059 Wixom, MI 48393-0059 0644 Trio-Tech, International 355 Parkside Drive San Fernando, CA 91340 0646 Troxler Electronic Labs, Inc. 3008 Cornwallis Road P.O. Box 12057 Research Triangle Park, NC 27709 Active Vendors Page 66 of 71 7/1/2021 1180 TruGlo, Inc. 525 International Parkway Richardson, TX 75081 0636 TSI, Incorporated 500 Cardigan Road P.O. Box 64394 St. Paul, MN 55164 0792 Tubescope VETCO

Houston, TX 0243 Tubescope VETCO International

Houston, TX 1118 Tuboscope Vetco International, Inc. P.O. Box 808 2835 Holmes Road Houston, TX 77001 0688 Tundra Division of AECL, Inc. 5251 Office Park Drive, Suite 401 Bakersfield, CA 93309 0648 Twin City Testing Corporation 107-111 Gundry Street North Tonowanda, NY 14120 N/A Tyco Electronic Products Group 160 Billet Road Walthanstow London United Kingdom 0320 Tyco Laboratories General Nucleonics Division

1156 Tyco Safety Products 91 Technology Drive Westminster, MA 01441 1129 U.S. Department of Army U.S. Army TACOM Life Cycle Mgmt Command/AMSTA-CS-C Rock Island, IL 61299-7630 0277 U.S. Department of Energy P.O. Box 2008 Oak Ridge, TN 37831-6390 0392 U.S. Department of Justice Federal Bureau of Investigation

Washington, DC 20535 0153 U.S. Department Of The Army U.S. Army Armament Material Readiness Command

Rock Island, IL 61201 Active Vendors Page 67 of 71 7/1/2021 0154 U.S. Department Of The Army Cold Regions Research and Engineering Laboratory Corps of Engineers 72 Lyme Road Hanover, NH 03755-1290 0156 U.S. Department Of The Army ATTN:AMCSF-P, 5001 Eisenhower Avenue Alexandria, VA 22333 0520 U.S. Department Of The Army Office of Civil Defense The Pentagon Washington, DC 20310 1155 U.S. Department of the Army AMSAM-TMD-SR Bldg. 5417 Redstone Arsenal, AL 35898-5000 0652 U.S. Nuclear Corporation (No Longer in Business) 801 North Lake Street Burbank, CA 91503 0654 U.S. Radium Company 1259 Route 46 Parsippany, NJ 07054 0649 Ultra Electronics, Inc.

Granada Hills, CA 91344 N/A Unicam Analytical Systems Unicam Limited, York Street Cambridge, CB1 2PX United Kingdom N/A Union Miniere

Brussels Belgium 0650 Unit Process Assemblies, Inc.

Syosset, NY 11791 0785 United Engineers Automation Division of Black, Sivalls & Bryson, Inc. 7455 East 46th Street Tulsa, OK 74145 0787 United Scientific Corporation 1400 Steirlin Road Mountain View, CA 94042 0655 United Technologies Corporation United Technologies Research Center (UTRC) Silver Lane East Hartford, CT 06108 Active Vendors Page 68 of 71 7/1/2021 0657 Universal Security Instruments, Inc. Northwest Business Center 11407 Cronhill Drive, S Owings Mills, MD 21117 8302 Unknown

1177 UPA Technology 8969 Cincinnati-Columbus Road (513-755-1380) West Chester, OH 45069 1094 Ustav Pro Vyzkum Vyrobu A Vyuziti Radioisotopu (UVVVR) Institute for Res., Production and Uses of Radioisotopes

Prague Czech Republic N/A V.G. KHLOPIN RADIUM INSTITUTE 28, 2nd Murinsky Pr., 194021 St. Petersburg Russian Federation 1132 Vacuum Instrument Corporation 2099 Ninth Avenue Ronkonkoma, NY 11779 0658 Valco Instruments Company P.O. Box 55603 Houston, TX 77055 N/A VALMET AUTOMATION USA, Inc. 3100 Medlock Bridge Road Suite 250 Norcross, GA 30071 N/A Valmet Automation, OY Lentokentankatu 11 SF-33101 Tampere Finland N/A Valmet Automation, OY Kehraamontie 3 Kajaani Finland 0596 Valmet, Inc. 2425 Commerce Avenue Suite 100 Duluth, GA 30096 1376 Varco, L.P. P.O. Box 808 Houston, TX 77001 1080 Varian Medical Systems 3100 Hansen Way Palo Alto, CA 94304 Active Vendors Page 69 of 71 7/1/2021 N/A Varian Medical Systems Haan GmbH Rheinische Strasse 2 42781 Haan Haan Germany N/A Varian Medical Systems UK Ltd. Gatwick Road, Crawley West Sussex, RH10 2RG United Kingdom 1496 Varian Medical Systems, Inc. 501 Locust Avenue, Suite 1 Charlottesville, VA 22902 0522 VEGA Americas, Inc. 4241 Allendorf Drive Cincinnati, OH 45209 0385 Ventek, Inc PO Box 43527 Birmingham, AL 35243 0666 Victoreen, Inc. 6000 Cochran Road Cleveland, OH 44139 1346 Viewray Technologies, Inc. 2 Thermo Fisher Way Oakwood Village, OH 44146 0789 Vigor, Bergeon Bestfit, B. Jadow & Sons, Inc. 53 West 23rd Street New York, NY 10010 1397 Viken Detection Corporation 21 North Avenue Burlington, MA 01803 N/A ViTrax 660 South Jefferson Street Unit E Placentia, CA 92870 1260 VITS-America, Inc. 200 Corporate Drive Bradley Corporate Park Blauvelt, NY 10913 1231 Voith US Inc. 2200 N. Roemer Road Appleton, WI 54911-2337 N/A Wallac Oy

Turku Finland 0541 Wallac, Inc. 9238 Gaither Road Gaithersburg, MD 20877 Active Vendors Page 70 of 71 7/1/2021 1047 Walter Kidde Portable Equipment, Inc. 1016 Corporate Park Drive Mebane, NC 27302 1407 Walter Kidde Portable Equipment, Inc. 1394 South Third Street Mebane, NC 27302 1408 Walter Kidde Portable Equipment, Inc. 1027 Corporate Park Drive Mebane, NC 27302 1409 Walter Kidde Portable Equipment, Inc. 3825 South Willow Avenue Fresno, CA 93725 N/A Weatherford Int'l, LLC 7504 Benbrook Parkway Benbrook, TX 76126 1165 Web Research 7317 Cahill Road #261 Minneapolis, MN 55439-2080 N/A Westinghouse Hanford P.O. Box 1970 Richland, WA 49352 0671 Weston/Schlumberger Kennedy Drive Archbald, PA 18403 0673 Wiegand Evaporators, Inc. Oakland Center, 8940 Route 108 Columbia, MD 21045 1493 Williams Gun Sight Company 7389 Lapeer Rd. Davison, MI 48423 N/A Williston Elin Schiefe Barte II D3414 Hardengsen Germany 0672 Wm. B. Wilson Manufacturing Co. P.O. Box 34627 San Antonio, TX 78233 N/A Worden Gravity Meter Company 2116 Thompson Highway Suite H1 Richmond, TX 77469 N/A Wultex Machine Company, Ltd. Progress Works Ivy Street East, Aspley Huddersfield, HD5 9AF United Kingdom Active Vendors Page 71 of 71 7/1/2021 0674 X-Mas, Inc.

Houston, TX 77001 0675 X-Ray Industries

1362 Xcision Medical Systems, LLC 9176 Red Branch Road Suite O Columbia, MD 21045 N/A Xi'an System Sensor Electronics, Ltd. 28 Tuan Jie South Road Province of Shaanxi Xi'an China 0676 Xontech, Inc. Environmental Systems Division 6862 Havenhurst Avenue Van Nuys, CA 91406 1489 XRSciences, LLC 2101 Las Palmas Drive Suite F Carlsbad, CA 92011 1500 XS Sight Systems 2405 Ludelle Street Fort Worth, TX 76105 0173 Xsurius 1220 Avenida Acaso Camarillo, CA 93012 0693 Yachting Electronic Services

0678 Yokogawa Corporation of America 2 Dart Road Newnan, GA 30265-1040 0679 Yokogawa Electric Corporation 4125 Shinjuku Center Building 1-25-1 Nishi Shinjuku, Shinjuku Japan 0680 Zikonix Corporation 224 Santa Ana Court Sunnyvale, CA 94086