COMMONWEALTH OF MASSACHUSETTS DIVISION OF INSURANCE Company Licensing / Financial Surveillance 1000 Washington Street, Suite 810 Boston, MA 02118-6200 FAX (617) 521-7771 http://www.mass.gov/doi Companies Licensed for Worker's Compensation (Designation 6E) December 01, 2017 NAIC Designation Company Address City State Zip Code Phone # # Appt. Date 21st Century Plaza, 3 Beaver Valley 1 25232 3/18/2008 21st Century Advantage Insurance Company Wilmington DE 19803-1115 302-252-2000 Road 21st Century Plaza, 3 Beaver Valley 2 44245 10/22/2009 21st Century Assurance Company Wilmington DE 19803-1115 302-252-2000 Road 21st Century Plaza, 3 Beaver Valley 3 34789 6/4/1981 21st Century Centennial Insurance Company Wilmington DE 19803-1115 302-252-2000 Road 21st Century Plaza, 3 Beaver Valley 4 23795 7/1/1947 21st Century Pacific Insurance Company Wilmington DE 19803 302-252-2000 Road 5 31325 7/8/1996 Acadia Insurance Company P.O. Box 9010 Westbrook ME 04098-5010 207-772-4300 6 12304 1/28/2008 Accident Fund General Insurance Company P.O. Box 40790 Lansing MI 48933 517-342-4200 7 10166 1/26/2004 Accident Fund Insurance Company of America P.O. Box 40790 Lansing MI 48901-7990 517-342-4200 8 12305 1/28/2008 Accident Fund National Insurance Company P.O. Box 40790 Lansing MI 48901-7990 517-342-4200 9 22667 11/1/1971 ACE American Insurance Company 436 Walnut St., PO Box 1000 Philadelphia PA 19106 215-640-1000 10 20702 2/20/1969 ACE Fire Underwriters Insurance Company 436 Walnut St., PO Box 1000 Philadelphia PA 19106 215-640-1000 11 20699 4/3/1957 ACE Property and Casualty Insurance Company 436 Walnut St., PO Box 1000 Philadelphia PA 19106 215-640-1000 2600 N. Central Expressway, Suite 12 19984 6/20/2001 ACIG Insurance Company Richardson TX 75080 972-702-9004 800 13 44318 10/29/2015 Admiral Indemnity Company 301 Route 17 North, Suite 900 Rutherford NJ 07070 201-518-2500 Advantage Workers Compensation Insurance 14 40517 10/24/2006 P.O. Box 571918 Salt Lake City UT 84157-1918 888-595-8750 Company 15 10014 12/27/1965 Affiliated FM Insurance Company 270 Central Avenue Johnston RI 02919 800-343-7722 16 19402 4/25/1966 AIG Property Casualty Company 175 Water Street, 18th Fl New York NY 10038 212-770-7000 15 Independence Blvd., c/o Mitsui 17 34886 1/3/2012 Aioi Nissay Dowa Insurance Company of America Sumitomo Marine Management Warren NJ 07059 908-604-2853 (U.S.A.) 18 19399 7/24/1962 AIU Insurance Company 175 Water Street, 24th Fl New York NY 10038 212-770-7000 19 24899 6/12/2003 Alea North America Insurance Company 5 Batterson Park Road, 3rd Floor Farmington CT 06032 860-773-3457 20 24899 6/12/2003 Alea North America Insurance Company 5 Batterson Park Road, 3rd Floor Farmington CT 06032 860-773-3457 Page 1 of 13 NAIC Designation Company Address City State Zip Code Phone # # Appt. Date 21 20222 1/18/1973 All America Insurance Company 800 South Washington St. Van Wert OH 45891 800-736-7000 22 35300 12/31/1977 Allianz Global Risks US Insurance Company 225 W. Washington St., Suite 1800 Chicago IL 60606 312-224-3300 23 11242 4/16/2015 Allied Eastern Indemnity Company 25 Race Avenue Lancaster PA 17603 855-533-3444 24 22730 1/27/1998 Allied World Insurance Company 199 Water Street 24th Floor New York NY 10038 646-794-0500 25 16624 1/24/2006 Allied World Specialty Insurance Company 199 Water Street 24th Floor New York NY 10038 646-794-0500 26 10212 11/30/1995 Allmerica Financial Alliance Insurance Company 440 Lincoln St. Worcester MA 01653 508-853-7200 27 41840 12/23/1991 Allmerica Financial Benefit Insurance Company 440 Lincoln St. Worcester MA 01653 508-855-1000 28 19240 7/1/1982 Allstate Indemnity Company 3075 Sanders Rd., Suite H1A Northbrook IL 60062-7127 847-402-5000 29 19232 10/4/1963 Allstate Insurance Company 3075 Sanders Rd., Suite H1A Northbrook IL 60062-7127 847-402-5000 30 36455 8/9/1983 Allstate Northbrook Indemnity Company 3075 Sanders Rd Suite H1E Northbrook IL 60062-7127 800-356-4098 555 College Road East, PO Box 31 19720 10/7/1998 American Alternative Insurance Corporation Princeton NJ 08543-5241 609-243-4200 5241 225 W. Washington Street, Suite 32 21849 7/1/1991 American Automobile Insurance Company Chicago IL 60606 312-224-3469 1800 American Casualty Company of Reading, 33 20427 12/29/1944 333 S. Wabash Ave. Chicago IL 60604 312-822-5000 Pennsylvania 8500 Normandale Lake Blvd, Suite 34 45934 11/15/1996 American Compensation Insurance Company Bloomington MN 55437 800-789-2242 1400 35 38237 8/9/1999 American Country Insurance Company 953 American Lane, 3rd Floor Schaumburg IL 60173 847-472-6700 36 19690 5/3/1977 American Economy Insurance Company 175 Berkeley Street Boston MA 02116 617-357-9500 37 23337 10/22/1965 American European Insurance Company 605 3rd Ave., 9th Fl. New York NY 10158 800-222-3058 38 23450 12/4/2012 American Family Home Insurance Company P.O. Box 5323 Cincinnati OH 45201-5323 513-943-7200 39 24066 3/30/2000 American Fire and Casualty Company 175 Berkeley St. Boston MA 02116 617-357-9500 American Guarantee and Liability Insurance 40 26247 5/11/1940 1299 Zurich Way Schaumburg IL 60196-1056 847-605-6000 Company 41 43494 9/29/2011 American Hallmark Insurance Company of Texas 777 Main Street, Suite 1000 Fort Worth TX 76102 817-348-1600 42 19380 2/11/1960 American Home Assurance Company 175 Water St., 18th Fl. New York NY 10038 212-770-7000 225 W. Washington Street, Suite 43 21857 7/1/1991 American Insurance Company, (The) Chicago IL 60606 312-441-2177 1800 44 31895 10/23/1997 American Interstate Insurance Company 2301 Highway 190 West DeRidder LA 70634-6005 800-256-9052 45 15911 12/31/2013 American Mining Insurance Company P.O. Box 660847 Birmingham AL 35266-0847 800-448-5621 46 23469 3/5/2013 American Modern Home Insurance Company P.O. Box 5323 Cincinnati OH 45201 800-543-2644 American Modern Property & Casualty Insurance 47 42722 5/9/2017 P.O. Box 5323 Cincinnati OH 45201-5323 800-543-2644 Company 48 12190 12/21/1994 American Pet Insurance Company 6100 4th Avenue S Seattle WA 98108 206-607-1897 49 17965 10/20/2016 American Sentinel Insurance Company P.O. Box 61140 Harrisburg PA 17106-1140 717-540-0600 50 19704 5/3/1977 American States Insurance Company 175 Berkeley Street, M09G Boston MA 02116 617-357-9500 51 40142 3/9/1984 American Zurich Insurance Company 1299 Zurich Way, Customer Inquiry Schaumburg IL 60196-1056 847-605-6000 52 19488 9/23/1985 Amerisure Insurance Company P.O. Box 2060 Farmington Hills MI 48333-2060 800-257-1900 Page 2 of 13 NAIC Designation Company Address City State Zip Code Phone # # Appt. Date 53 23396 1/30/1950 Amerisure Mutual Insurance Company P.O. Box 2060 Farmington Hills MI 48333-2060 800-257-1900 54 11050 5/21/2012 Amerisure Partners Insurance Company P.O. Box 2060 Farmington Hills MI 48333-2060 248-615-9000 55 10665 1/4/2007 Ameritrust Insurance Corporation 26255 American Drive Southfield MI 48034-6112 248-358-1100 56 42390 2/23/1998 AmGuard Insurance Company 16 South River St., P.O. Box A-H Wilkes Barre PA 18703-0020 800-673-2465 57 15954 3/19/2012 Amtrust Insurance Company of Kansas, Inc. 12790 Merit Dr., Suite 200 Dallas TX 75251 214-360-8000 58 10017 3/11/1994 Arbella Indemnity Insurance Company, Inc. 1100 Crown Colony Drive Quincy MA 02269 617-328-2800 59 41360 3/29/1996 Arbella Protection Insurance Company, Inc. 1100 Crown Colony Drive Quincy MA 02269 617-328-2800 Harborside 3, 210 Hudson Street, 60 30830 6/9/2008 Arch Indemnity Insurance Company Jersey City NJ 07311-1107 201-743-4035 Suite 300 Harborside 3, 210 Hudson Street, 61 11150 6/25/2002 Arch Insurance Company Jersey City NJ 07311-1107 201-743-4000 Suite 300 225 W. Washington Street, 24th 62 19860 10/25/2010 Argonaut Great Central Insurance Company Chicago IL 60606 800-470-7958 Floor 63 19801 9/12/1960 Argonaut Insurance Company 225 W. Washington 24th Fl. Chicago IL 60606 800-470-7958 64 19828 2/14/1973 Argonaut-Midwest Insurance Company P.O. Box 469011 San Antonio TX 78246-9011 800-470-7958 65 13374 7/26/1920 Arrow Mutual Liability Insurance Company 23 Commonwealth Avenue Chestnut Hill MA 02167 617-244-5730 66 24678 3/31/1980 Arrowood Indemnity Company 3600 Arco Corporate Drive Charlotte NC 28273 704-522-2000 67 40398 1/17/2006 Ashmere Insurance Company 401 E. Las Olas Blvd., Suite 1540 Fort Lauderdale FL 33301 800-948-2651 68 11104 4/4/2001 Associated Employers Insurance Company P.O. Box 4070 Burlington MA 01803-0970 800-876-2765 225 W. Washington Street, Suite 69 21865 7/1/1991 Associated Indemnity Corporation Chicago IL 60606 312-441-2177 1800 70 33758 6/9/1989 Associated Industries of Mass. Mutual Ins. Co. P.O. Box 4070 Burlington MA 01803-0970 800-876-2765 71 33758 6/9/1989 Associated Industries of Mass. Mutual Ins. Co. P.O. Box 4070 Burlington MA 01803-0970 800-876-2765 72 20931 1/14/1964 Atlanta International Insurance Company 5814 Reed Road Fort Wayne IN 46835 402-916-3383 73 44326 1/14/1991 Atlantic Charter Insurance Company 25 New Chardon St.