Top Design Firms

Ranked by WORLDWIDE REVENUE Revenue Ranked by WORLDWIDE REVENUE Revenue

1 URS Corporation $4,895,000,000 20 Hatch Mott MacDonald $220,100,000 2 AECOM Technology Corporation $3,500,000,000 21 NBBJ $193,140,000 3 Arcadis NV $2,214,820,000 22 Syska Hennessy Group $152,440,000 4 Tetra Tech, Inc. $1,550,000,000 23 CMX Inc. $141,400,000 5 Arup $1,456,560,000 24 Perkins Eastman $135,000,000 6 Parsons Brinckerhoff (PB) $1,288,500,000 24 Vanasse Hangen Brustlin, Inc. $135,000,000 7 WSP Group plc $1,000,000,000 26 Langan Engineering & Environmental Services $133,000,000 8 HDR $994,600,000 27 Greenman-Pedersen, Inc. $132,540,000 9 Stantec $888,020,000 28 Hazen and Sawyer, P.C. $128,800,000 10 Berger Group Holdings $847,200,000 29 Cannon Design, Inc. $126,570,000 11 Halcrow Group Ltd. $749,000,000 30 Thornton Tomasetti $122,000,000 12 Gensler $461,000,000 31 Clough Harbour & Associates LLP $121,100,000 13 Malcolm Pirnie Inc. $357,000,000 32 Haley & Aldrich, Inc. $95,300,000 14 Skidmore, Owings & Merrill LLP $345,900,000 33 Wiss, Janney, Elstner Associates, Inc. $80,400,000 15 Dewberry $312,690,000 34 Birdsall Services Group, Inc. $73,600,000 16 STV Group $263,780,000 35 R.G. Vanderweil Engineers, LLP $73,250,000 17 Burns and Roe $240,000,000 36 RMJM (International)/RMJM Hillier (US) $70,800,000 18 Gannett Fleming, Inc. $236,480,000 37 Arquitectonica $70,510,000 19 Perkins+Will $230,670,000 38 NELSON $70,340,000

54 New York Construction 10/2008 Top Design Firms

Ranked by WORLDWIDE REVENUE Revenue Ranked by WORLDWIDE REVENUE Revenue

39 AKF Gorup LLC $69,160,000 58 Holzmacher, McLendon & Murrell, P.C. (H2M) $32,600,000 40 Robert A.M. Stern Architects, LLP $68,050,000 59 The RBA Group $32,000,000 41 Weidlinger Associates, Inc. $64,000,000 60 Tectonic Engineering & Surveying Consultants P.C. $31,240,000 42 Schirmer Engineering Corporation $60,550,000 61 Mancini • Duffy $30,000,000 43 Swanke Hayden Connell Architects $57,900,000 62 Corgan Associates, Inc. $29,400,000 44 Cosentini Associates $57,300,000 63 Costas Kondylis & Partners LLP $29,340,000 45 JCJ Architecture $53,140,000 64 Mueser Rutledge Consulting Engineers $29,280,000 46 T&M Associates $45,600,000 65 HAKS $28,430,000 47 BBG-BBGM $44,750,000 66 Davis Brody Bond Aedas $26,950,000 48 Paulus, Sokolowski and Sartor $44,100,000 67 Handel Architects LLP $24,960,000 49 FXFOWLE Architects LLP $42,000,000 68 Lilker Associates Consulting Engineers PC $23,500,000

50 Hardesty & Hanover, LLP $37,000,000 69 William F. Cosulich Associates, PC $23,140,000 51 Ammann & Whitney $36,680,000 d/b/a Dvirka and Bartilucci Consulting Engineers 52 BL Companies, Inc. $36,600,000 70 Robert Derector Associates $22,000,000 53 Polshek Partnership Architects, LLP $35,060,000 71 Erdman Anthony $21,670,000 54 Fay, Spofford & Thorndike $34,500,000 72 Urbahn Architects $21,500,000 55 The S/L/A/M Collaborative $34,000,000 73 SBLM Architects PC $21,200,000 56 DeSimone Consulting Engineers $33,300,000 74 Ted Moudis Associates $19,500,000 57 On-Board Engineering Corporation $33,000,000 75 Fletcher-Thompson, Inc. $19,130,000

55 New York Construction 10/2008 Top Design Firms

Ranked by NEW YORK REVENUE Revenue Ranked NEW YORK REVENUE Revenue

1 AECOM Technology Corporation $344,900,000 20 Cosentini Associates $45,810,000 2 Parsons Brinckerhoff (PB) $114,400,000 21 Syska Hennessy Group $42,150,000 3 STV $104,890,000 22 FXFOWLE Architects LLP $42,000,000 4 Arcadis US, Inc. $101,280,000 23 Langan Engineering & Environmental Services $41,000,000 5 Berger Group Holdings $100,000,000 24 Weidlinger Associates, Inc. $35,000,000 6 Gensler $99,070,000 25 BBG-BBGM $33,210,000 7 URS Corporation $81,800,000 26 Arup $31,190,000 8 Malcolm Pirnie Inc. $78,200,000 27 Cannon Design, Inc. $30,850,000 9 Skidmore, Owings & Merrill LLP $75,700,000 28 Tectonic Engineering & Surveying Consultants P.C. $30,140,000 10 Stantec $72,890,000 29 Costas Kondylis & Partners LLP $28,670,000 11 Clough Harbour & Associates LLP $71,430,000 30 Holzmacher, McLendon & Murrell, P.C. (H2M) $27,600,000 12 Perkins Eastman $70,200,000 31 Ammann & Whitney $27,210,000 13 WSP $69,710,000 32 Davis Brody Bond Aedas $23,920,000 14 Hazen and Sawyer, P.C. $58,000,000 33 Earth Tech, Inc. $23,810,000 14 Greenman-Pedersen, Inc. $58,000,000 34 Mancini • Duffy $22,950,000 16 Halcrow, Inc. $53,000,000 35 Swanke Hayden Connell Architects $22,400,000 16 HDR $53,000,000 36 HAKS $22,360,000 18 Thornton Tomasetti $50,000,000 37 William F. Cosulich Associates, PC $22,040,000 19 AKF Group LLC $49,500,000 d/b/a Dvirka and Bartilucci Consulting Engineers

56 New York Construction 10/2008 Top Design Firms

Ranked by NEW YORK REVENUE Revenue Ranked by NEW YORK REVENUE Revenue

38 Lilker Associates Consulting Engineers PC $22,000,000 57 GACE Goldstein Associates Consulting Engineers PC $11,880,000 39 Polshek Partnership Architects, LLP $20,850,000 58 Joseph R. Loring & Associates, Inc. $11,310,000 40 Robert Derector Associates $20,000,000 59 Spector Group $11,200,000 40 Hardesty & Hanover, LLP $20,000,000 60 Haks Engineers and Land Surveyors, PC $11,000,000 42 The Thomas Group, A Tetra Tech Company $19,820,000 61 The Switzer Group $10,750,000 43 Mueser Rutledge Consulting Engineers $19,760,000 62 Gruzen Samton Architects, Planners & Interior Designers, LLP $10,500,000 44 NBBJ $19,700,000 63 Stonehill & Taylor Architects, P.C. $10,380,000 45 Urbahn Architects $19,670,000 64 Lizardos Engineering Associates, P.C. $10,000,000 46 Perkins+Will $17,570,000 65 Butler Rogers Baskett Architects $9,600,000 47 JCJ Architecture $17,550,000 66 NELSON NY Architecture Operating Company LLC $9,470,000 48 Gannett Fleming Engineers and Architects, P.C. $17,280,000 67 Cameron Engineering & Associates, LLP $9,250,000 49 CSArch Architecture I Construction Management $16,970,000 68 LiRo Engineers, Inc. $9,180,000 50 DeSimone Consulting Engineers $15,200,000 69 SBLM Architects PC $9,100,000 51 Ted Moudis Associates $14,250,000 70 Hatch Mott MacDonald $9,000,000 52 Handel Architects LLP $13,360,000 71 SWBR Architects $8,670,000 53 The Chazen Companies $12,940,000 72 Robert A.M. Stern Architects, LLP $8,310,000 54 Erdman Anthony $12,720,000 73 RMJM Hillier $8,050,000 55 McLaren Engineering Group $12,460,000 74 SUPERSTRUCTURES Engineers + Architects $8,000,000 56 The RBA Group - New York $12,400,000 75 HNTB Corporation $7,820,000

57 New York Construction 10/2008 Top Design Firms

Ranked by NEW JERSEY REVENUE Revenue Ranked by CONNECTICUT REVENUE Revenue

1 Berger Group Holdings $180,000,000 1 AECOM Technology Corporation $28,800,000 2 URS Corporation $126,160,000 2 BL Companies, Inc. $18,850,000 3 Birdsall Services Group, Inc. $71,850,000 3 The S/L/A/M Collaborative $14,900,000 4 CMX Inc. $66,660,000 4 JCJ Architecture $14,740,000 5 AECOM Technology Corporation $49,200,000 5 Parsons Brinckerhoff (PB) $12,200,000 6 Langan Engineering & Environmental Services $49,000,000 6 Perkins Eastman $12,150,000 7 Hatch Mott MacDonald $47,800,000 7 Fletcher-Thompson, Inc. $11,940,000 8 T&M Associates $45,600,000 8 URS Corporation $9,420,000

9 Dewberry $40,630,000 9 VHB/Vanasse Hangen Brustlin, Inc., and affiliate Eschbacher VHB $8,720,000 10 Paulus, Sokolowski and Sartor $40,600,000 10 Malcolm Pirnie Inc. $8,700,000 11 Parsons Brinckerhoff (PB) $38,200,000 11 Berger Group Holdings $8,050,000 12 HNTB Corporation $27,810,000 12 Langan Engineering & Environmental Services $8,000,000 13 Arcadis US, Inc. $26,440,000 13 Haley & Aldrich of New York $7,200,000 14 Greenman-Pedersen, Inc. $22,340,000 14 Clough Harbour & Associates LLP $5,930,000 15 Gannett Fleming Engineers and Architects, P.C. $19,260,000 15 R.G. Vanderweil Engineers, LLP $5,670,000 16 Malcolm Pirnie Inc. $18,700,000 16 STV $5,620,000 17 STV $17,300,000 17 Antinozzi Associates PC $5,000,000 18 The RBA Group - New York $16,500,000 18 AKF Group LLC $4,300,000 19 Gensler $16,070,000 19 HNTB Corporation $3,800,000 20 RMJM Hillier $13,020,000 20 Robert A.M. Stern Architects, LLP $3,780,000 21 Stantec $12,620,000 21 HAKS $3,180,000 22 Earth Tech, Inc. $11,980,000 22 WSP $3,090,000 23 Thornton Tomasetti $9,500,000 23 Gensler $3,040,000 24 KS Engineers, PC $8,000,000 24 Gannett Fleming Engineers and Architects, P.C. $3,010,000 25 HDR $7,000,000 25 Dewberry $2,800,000 26 Arquitectonica $6,600,000 26 Mancini • Duffy $2,700,000 27 Fletcher-Thompson, Inc. $6,570,000 26 DeSimone Consulting Engineers $2,700,000 28 Naik Consulting Group $6,250,000 28 Syska Hennessy Group $2,500,000 29 Clough Harbour & Associates LLP $6,140,000 28 Austin Patterson Disston Architects $2,500,000 30 Haley & Aldrich of New York $6,100,000 30 Perkins+Will $2,440,000 31 Perkins Eastman $6,080,000 31 Thornton Tomasetti $2,400,000 32 R.G. Vanderweil Engineers, LLP $6,070,000 31 Skidmore, Owings & Merrill LLP $2,400,000 33 AKF Group LLC $5,800,000 33 Earth Tech, Inc. $2,090,000 34 Arup $5,790,000 34 Polshek Partnership Architects, LLP $2,020,000 35 WSP $5,430,000 35 Arup $1,930,000 36 Skidmore, Owings & Merrill LLP $5,300,000 36 Arcadis US, Inc. $1,910,000 37 Mueser Rutledge Consulting Engineers $5,270,000 37 Stantec $1,840,000 38 Hardesty & Hanover, LLP $5,000,000 37 SUPERSTRUCTURES Engineers + Architects $1,840,000 38 Holzmacher, McLendon & Murrell, P.C. (H2M) $5,000,000 39 Butler Rogers Baskett Architects $1,800,000 40 Gruzen Samton Architects, Planners & Interior Designers, LLP $4,000,000 40 The Chazen Companies $1,600,000 41 The Chazen Companies $3,750,000 41 Weidlinger Associates, Inc. $1,500,000 42 Granary Associates $3,470,000 41 HDR $1,500,000 43 YU & Associates, Inc. $3,400,000 43 Spector Group $1,400,000 43 BANC3, Inc. PC Consulting Engineers $3,400,000 44 Mueser Rutledge Consulting Engineers $1,320,000 45 The Thomas Group, A Tetra Tech Company $3,110,000 45 Edward D’Orazio, AIA Architects $1,200,000 46 The Ives Schier & Lesser Architects Studio $3,000,000 46 Hazen and Sawyer, P.C. $1,110,000 47 Davis Brody Bond Aedas $2,910,000 47 On-Board Engineering Corporation $1,000,000 48 HAKS $2,890,000 48 Tectonic Engineering & Surveying Consultants P.C. $850,000 49 SBLM Architects PC $2,710,000 49 Swanke Hayden Connell Architects $840,000 50 Weidlinger Associates, Inc. $2,500,000 49 McLaren Engineering Group $840,000

59 New York Construction 10/2008 Top Design Firms

Ranked by COMMERCIAL BUILDING REVENUE Revenue Ranked by Discipline - STRUCTURAL ENGINEERING Revenue

1 Skidmore, Owings & Merrill LLP $32,003,582 1 AECOM Technology Corporation $84,580,000 2 Swanke Hayden Connell Architects $11,933,740 2 Thornton Tomasetti $53,234,000 3 Langan Engineering & Environmental Services $10,152,800 3 Parsons Brinckerhoff (PB) $52,736,000 4 Perkins Eastman $9,904,160 4 URS Corporation $43,476,000 5 FXFOWLE Architects LLP $7,560,000 5 WSP $39,115,000 6 CMX Inc. $7,056,189 6 Weidlinger Associates, Inc. $39,000,000 7 Thornton Tomasetti $6,932,800 7 Greenman-Pedersen, Inc. $31,321,400 8 Syska Hennessy Group $5,676,650 8 STV $25,562,000 9 BBG-BBGM $4,772,625 9 Ammann & Whitney $19,235,560 10 Haley & Aldrich of New York $4,056,000 10 Halcrow, Inc. $18,550,000 11 Arup $3,992,166 11 DeSimone Consulting Engineers $17,900,000 12 Perkins+Will $3,635,817 12 Hardesty & Hanover, LLP $15,000,000 13 Joseph R. Loring & Associates, Inc. $3,611,520 13 GACE Goldstein Associates Consulting Engineers PC $13,200,000 14 Weidlinger Associates, Inc. $3,510,000 14 HDR $12,300,000 15 Mojo Stumer Associates, P.C. $2,882,567 15 HAKS $10,234,800 16 Spector Group $2,800,000 16 Earth Tech, Inc. $8,712,400 17 T&M Associates $2,736,000 17 Dewberry $8,693,800 18 Mueser Rutledge Consulting Engineers $2,635,000 18 Clough Harbour & Associates LLP $8,533,700 19 On-Board Engineering Corporation $2,450,000 19 Arup $7,782,000 20 Birdsall Services Group, Inc. $2,208,000 20 McLaren Engineering Group $7,520,000 21 Halcrow, Inc. $2,151,270 21 T&M Associates $7,296,000 22 URS Corporation $2,025,329 22 Rosenwasser / Grossman Consulting Engineers, P.C. $7,000,000 23 RMJM Hillier $2,023,680 23 Hazen and Sawyer, P.C. $6,014,000 24 GACE Goldstein Associates Consulting Engineers PC $1,980,000 24 Haks Engineers and Land Surveyors, PC $5,750,000 25 STV $1,917,150 25 KS Engineers, PC $5,180,000 26 Mancini • Duffy $1,620,000 26 Tectonic Engineering & Surveying Consultants P.C. $4,686,000 27 Fletcher-Thompson, Inc. $1,589,828 27 Wiss, Janney, Elstner Associates, Inc. $4,125,000 28 JCJ Architecture $1,533,775 28 Paulus, Sokolowski and Sartor $3,969,000 29 R.G. Vanderweil Engineers, LLP $1,492,480 29 Gannett Fleming Engineers and Architects, P.C. $3,559,500 30 Davis Brody Bond Aedas $1,426,517 30 On-Board Engineering Corporation $3,500,000 31 Edward D’Orazio, AIA Architects $1,360,000 31 Fay, Spofford & Thorndike of NY - Engineers $3,300,000 32 Polshek Partnership Architects, LLP $1,277,175 32 SUPERSTRUCTURES Engineers + Architects $2,960,000 33 O’Dea, Lynch, Abbattista Consulting Engineers, PC $1,258,400 33 The RBA Group - New York $2,940,000 34 McLaren Engineering Group $1,203,200 34 Naik Consulting Group $2,850,000 35 Parsons Brinckerhoff (PB) $1,161,840 35 Hatch Mott MacDonald $2,840,000 36 Costas Kondylis & Partners LLP $1,146,685 36 Stantec $2,533,150

37 Handel Architects LLP $1,140,000 37 The Thomas Group, A Tetra Tech Company $2,293,000 38 Robert Derector Associates $1,100,000 38 Birdsall Services Group, Inc. $2,208,000 39 The Chazen Companies $1,097,400 39 Erdman Anthony $1,908,000 40 Butler Rogers Baskett Architects $1,093,750 40 Skidmore, Owings & Merrill LLP $1,834,800

ABOUT THE CHARTS:

The Top Design Firms rankings aims to identify the architecture and engineering firms that are most active in the regon. We send our online sur- veys to companies that participated previously, members of industry associations, and contacts gathered from other resources. Respondents are required to certify that the data they submitted is accurate. Here, we highlight the companies that are handling the most work in different spe- cialties and project types.

60 New York Construction 10/2008 Top Design Firms

Ranked by Project Type - ENVIRONMENTAL Revenue Ranked by Project Type - RENOVATIONS/RESTORATION Revenue

1 Arcadis US, Inc. $120,296,640 1 Thornton Tomasetti $27,236,000 2 Malcolm Pirnie Inc. $40,128,000 2 Paulus, Sokolowski and Sartor $13,230,000 3 AECOM Technology Corporation $33,832,000 3 SUPERSTRUCTURES Engineers + Architects $11,840,000 4 URS Corporation $20,651,100 4 SBLM Architects PC $8,470,000 5 HDR $19,680,000 5 Fletcher-Thompson, Inc. $7,648,000 6 Langan Engineering & Environmental Services $19,600,000 6 Gensler $7,067,164 7 Earth Tech, Inc. $15,152,000 7 RAND Engineering & Architecture, PC $5,624,000 8 Haley & Aldrich of New York $9,984,000 8 Perkins Eastman $5,305,800 9 Paulus, Sokolowski and Sartor $9,702,000 9 The RBA Group - New York $4,998,000 10 Birdsall Services Group, Inc. $7,360,000 10 FXFOWLE Architects LLP $4,200,000 11 R.G. Vanderweil Engineers, LLP $7,123,200 11 Weidlinger Associates, Inc. $3,900,000 12 William F. Cosulich Associates, PC $6,039,540 12 Lizardos Engineering Associates, P.C. $3,600,000 d/b/a Dvirka and Bartilucci Consulting Engineers 13 Ammann & Whitney $3,064,340 13 Hatch Mott MacDonald $5,680,000 14 Earth Tech, Inc. $3,030,400 14 Gannett Fleming Engineers and Architects, P.C. $5,141,500 15 Granary Associates $2,915,000 15 BL Companies, Inc. $4,782,300 16 CMX Inc. $2,890,400 16 The RBA Group - New York $4,410,000 17 Spector Group $2,800,000 17 Clough Harbour & Associates LLP $3,849,350 18 Cameron Engineering & Associates, LLP $2,796,000 18 Holzmacher, McLendon & Murrell, P.C. (H2M) $3,260,000 19 GACE Goldstein Associates Consulting Engineers PC $2,640,000 19 LiRo Engineers, Inc. $3,213,000 20 Mueser Rutledge Consulting Engineers $2,635,000 20 AKF Group LLC $2,980,000 21 Wiss, Janney, Elstner Associates, Inc. $2,625,000 21 T&M Associates $2,280,000 22 STV $2,556,200 22 Stantec $2,271,100 23 Swanke Hayden Connell Architects $2,324,000 23 CMX Inc. $2,167,800 24 Polshek Partnership Architects, LLP $2,287,000 24 Greenman-Pedersen, Inc. $2,042,700 25 Greenman-Pedersen, Inc. $2,042,700 25 Parsons Brinckerhoff (PB) $1,812,800 26 Urbahn Architects $2,041,000 26 The Chazen Companies $1,646,100 27 Austin Patterson Disston Architects $2,025,000 27 YU & Associates, Inc. $1,565,000 28 The Chazen Companies $1,829,000 28 Tectonic Engineering & Surveying Consultants P.C. $1,562,000 29 Goshow Architects LLP $1,800,000 29 Dewberry $1,534,200 30 BBG-BBGM $1,735,500 30 STV $1,278,100

Ranked by Project Type - MANUFACTURING/INDUSTRIAL Revenue Ranked by Discipline - EXTERIOR/FACADE DESIGN Revenue

1 Clough Harbour & Associates LLP $22,862,300 1 SUPERSTRUCTURES Engineers + Architects $8,880,000 2 Mueser Rutledge Consulting Engineers $6,587,500 2 Thornton Tomasetti $6,809,000 3 URS Corporation $4,782,360 3 RAND Engineering & Architecture, PC $4,440,000 4 T&M Associates $4,560,000 4 Gensler $3,545,400 5 STV $2,556,200 5 HDR $3,075,000 6 Lizardos Engineering Associates, P.C. $2,400,000 6 Ammann & Whitney $2,245,160 7 Erdman Anthony $1,908,000 7 HAKS $1,421,500 8 The S/L/A/M Collaborative $1,880,000 8 STV $1,278,100 9 Birdsall Services Group, Inc. $1,472,000 9 LPE Engineering, PC $1,140,000 10 BL Companies, Inc. $1,258,500 10 Wiss, Janney, Elstner Associates, Inc. $1,125,000

61 New York Construction 10/2008 Top Design Firms

Ranked by ALL GENERAL BUILDING REVENUE Revenue Ranked by Project Type - TRANSPORTATION Revenue

1 Langan Engineering & Environmental Services $72,520,000 1 AECOM Technology Corporation $325,633,000 2 Skidmore, Owings & Merrill LLP $67,804,200 2 Parsons Brinckerhoff (PB) $120,633,600 3 Perkins Eastman $61,901,000 3 STV $79,242,200 4 CMX Inc. $45,523,800 4 URS Corporation $50,649,540 5 STV $38,343,000 5 Greenman-Pedersen, Inc. $49,024,800 6 Thornton Tomasetti $34,664,000 6 Stantec $41,002,090 7 Gensler $32,794,950 7 HNTB Corporation $38,247,100 8 Cannon Design, Inc. $31,096,842 8 Halcrow, Inc. $34,450,000 9 JCJ Architecture $30,675,500 9 Dewberry $33,752,400 10 Stantec $27,122,175 10 HDR $24,600,000 11 URS Corporation $26,302,980 11 Hardesty & Hanover, LLP $24,000,000 12 Davis Brody Bond Aedas $25,936,680 12 Weidlinger Associates, Inc. $21,450,000 13 FXFOWLE Architects LLP $25,200,000 13 HAKS $20,188,143 14 Costas Kondylis & Partners LLP $22,933,700 14 Ammann & Whitney $19,174,880 15 Birdsall Services Group, Inc. $22,080,000 15 T&M Associates $19,152,000 16 The S/L/A/M Collaborative $21,385,000 16 Gannett Fleming Engineers and Architects, P.C. $18,588,500 17 Arup $21,011,400 17 Clough Harbour & Associates LLP $18,253,100 18 The Thomas Group, A Tetra Tech Company $20,637,000 18 WSP $17,992,900 19 RMJM Hillier $20,236,800 19 Hatch Mott MacDonald $17,040,000 20 Polshek Partnership Architects, LLP $19,439,500 20 The RBA Group - New York $14,700,000 21 BBG-BBGM $19,090,500 21 Earth Tech, Inc. $11,742,800 22 DeSimone Consulting Engineers $17,900,000 22 Tectonic Engineering & Surveying Consultants P.C. $10,934,000 23 Halcrow, Inc. $17,490,000 23 Naik Consulting Group $9,025,000 24 CSArch Architecture I Construction Management $16,970,000 24 Arup $8,560,200 25 Syska Hennessy Group $16,219,000 25 Birdsall Services Group, Inc. $7,360,000

Ranked by Project Type - ENERGY Revenue Ranked by Project Type - WATER/WASTE WATER Revenue

1 URS Corporation $91,516,980 1 Malcolm Pirnie Inc. $64,416,000 2 AECOM Technology Corporation $29,603,000 2 Hazen and Sawyer, P.C. $57,734,400 3 Parsons Brinckerhoff (PB) $28,840,000 3 AECOM Technology Corporation $29,603,000 4 AKF Group LLC $14,900,000 4 Hatch Mott MacDonald $22,720,000 5 Hatch Mott MacDonald $8,520,000 5 URS Corporation $19,781,580 6 Burns and Roe $8,400,000 6 William F. Cosulich Associates, PC $17,054,180 7 Birdsall Services Group, Inc. $7,360,000 d/b/a Dvirka and Bartilucci Consulting Engineers 8 BL Companies, Inc. $3,523,800 7 Holzmacher, McLendon & Murrell, P.C. (H2M) $14,670,000 9 Syska Hennessy Group $3,243,800 8 T&M Associates $9,576,000 10 HDR $3,075,000 9 Arcadis US, Inc. $8,101,875 11 Haley & Aldrich of New York $2,912,000 10 CMX Inc. $7,226,000 12 Greenman-Pedersen, Inc. $2,042,700 11 Clough Harbour & Associates LLP $5,703,050 13 Clough Harbour & Associates LLP $1,903,800 12 Gannett Fleming Engineers and Architects, P.C. $5,537,000 14 Erdman Anthony $1,526,400 13 HDR $4,305,000 15 STV $1,278,100 14 The Chazen Companies $3,658,000 16 Arup $1,167,300 15 Dewberry $3,068,400 17 McLaren Engineering Group $902,400 16 AKF Group LLC $2,980,000 18 Holzmacher, McLendon & Murrell, P.C. (H2M) $652,000 17 Parsons Brinckerhoff (PB) $2,636,800 19 Tectonic Engineering & Surveying Consultants P.C. $624,800 18 Mueser Rutledge Consulting Engineers $2,635,000 20 Paulus, Sokolowski and Sartor $617,400 19 Stantec $2,489,475 20 Haks Engineers and Land Surveyors, PC $2,300,000

63 New York Construction 10/2008 Top Design Firms

Ranked by EDUCATIONAL FACILITY REVENUE Revenue Ranked by HEALTHCARE & HOSPITAL REVENUE Revenue

1 The Thomas Group, A Tetra Tech Company $19,605,150 1 Perkins Eastman $27,855,450 2 CSArch Architecture I Construction Management $15,273,000 2 Skidmore, Owings & Merrill LLP $23,392,449 3 Cannon Design, Inc. $14,814,536 3 Cannon Design, Inc. $12,500,930 4 The S/L/A/M Collaborative $14,755,650 4 URS Corporation $9,600,588 5 Perkins Eastman $12,380,200 5 Perkins+Will $5,801,499 6 STV $9,585,750 6 RMJM Hillier $5,059,200 7 RMJM Hillier $9,511,296 7 Birdsall Services Group, Inc. $4,416,000 8 Stantec $7,607,770 8 Langan Engineering & Environmental Services $3,626,000 9 FXFOWLE Architects LLP $7,560,000 9 Polshek Partnership Architects, LLP $3,112,264 10 Polshek Partnership Architects, LLP $7,517,255 10 Syska Hennessy Group $2,919,420 11 Davis Brody Bond Aedas $6,774,661 11 The S/L/A/M Collaborative $2,352,350 12 Ammann & Whitney $6,326,709 12 Stonehill & Taylor Architects, P.C. $2,156,000 13 Birdsall Services Group, Inc. $5,520,000 13 Urbahn Architects $1,898,130 14 Skidmore, Owings & Merrill LLP $5,424,336 14 Arup $1,891,026 15 Fletcher-Thompson, Inc. $5,367,940 15 CMX Inc. $1,365,714 16 JCJ Architecture $4,601,325 16 Granary Associates $1,325,000 17 URS Corporation $4,471,507 17 HDR $1,107,000 18 Langan Engineering & Environmental Services $4,351,200 18 Swanke Hayden Connell Architects $1,057,420 19 Arup $4,202,280 19 Stantec $919,442 20 R.G. Vanderweil Engineers, LLP $4,011,040 20 BAM Studio $800,000

Ranked by MULTI-FAMILY RESIDENTIAL REVENUE Revenue Ranked by Project Type - INTERIORS Revenue

1 Costas Kondylis & Partners LLP $19,034,971 1 Gensler $64,100,832 2 CMX Inc. $18,664,758 2 Mancini • Duffy $24,030,000 3 STV $15,337,200 3 Ted Moudis Associates $17,210,000 4 Langan Engineering & Environmental Services $12,328,400 4 Robert Derector Associates $16,500,000 5 Robert A.M. Stern Architects, LLP $6,126,408 5 Perkins Eastman $15,917,400 6 Handel Architects LLP $5,130,000 6 BBG-BBGM $13,884,000 7 GACE Goldstein Associates Consulting Engineers PC $3,960,000 7 The Switzer Group $11,160,000 8 Parsons Brinckerhoff (PB) $3,872,800 8 Syska Hennessy Group $10,194,800 9 Arquitectonica $3,342,200 9 NELSON NY Architecture Operating Company LLC $9,909,000 10 HAKS $3,009,600 10 Skidmore, Owings & Merrill LLP $8,757,000 11 DeSimone Consulting Engineers $2,685,000 11 Butler Rogers Baskett Architects $7,875,000 12 Tectonic Engineering & Surveying Consultants P.C. $2,530,440 12 FXFOWLE Architects LLP $6,300,000 13 FXFOWLE Architects LLP $2,520,000 13 Spector Group $5,600,000 13 Rosenwasser / Grossman Consulting Engineers, P.C. $2,520,000 14 WB Engineers | Consultants PLLC $4,800,000 15 Skidmore, Owings & Merrill LLP $2,508,755 15 Swanke Hayden Connell Architects $4,648,000 16 Perkins Eastman $2,476,040 16 Costas Kondylis & Partners LLP $4,644,800 17 Birdsall Services Group, Inc. $2,208,000 17 Perkins+Will $3,601,800 18 McLaren Engineering Group $1,804,800 18 Edward D’Orazio, AIA Architects $3,400,000 19 Weidlinger Associates, Inc. $1,755,000 19 Gruzen Samton Architects, Planners & Interior Designers, LLP $2,900,000 20 Gruzen Samton Architects, Planners & Interior Designers, LLP $1,740,000 20 Weidlinger Associates, Inc. $1,950,000 21 Halcrow, Inc. $1,714,020 22 Haks Engineers and Land Surveyors, PC $1,380,000 23 The Stephen B. Jacobs Group, PC $1,350,000 24 Arup $1,260,684 25 URS Corporation $1,183,634

65 New York Construction 10/2008 Top Design Firms

Ranked by Discipline - MECHANICAL/ELECTRICAL Revenue Ranked by Project Type - LANDSCAPE/URBAN DESIGN Revenue

1 URS Corporation $73,909,200 1 Clough Harbour & Associates LLP $10,437,500 2 Cosentini Associates $41,229,000 2 Stantec $8,927,170 3 Syska Hennessy Group $37,072,000 3 field operations, pllc $5,085,000 4 AKF Group LLC $35,760,000 4 AECOM Technology Corporation $4,229,000 5 STV $25,562,000 5 FXFOWLE Architects LLP $4,200,000 6 WSP $21,904,400 6 Perkins Eastman $3,537,200 7 AECOM Technology Corporation $16,916,000 7 Langan Engineering & Environmental Services $2,940,000 8 Stantec $16,509,150 7 The RBA Group - New York $2,940,000 9 Robert Derector Associates $16,500,000 9 Hatch Mott MacDonald $2,840,000 10 Parsons Brinckerhoff (PB) $16,480,000 10 Gensler $2,505,416 11 Lilker Associates Consulting Engineers PC $16,450,000 11 Dewberry $2,045,600 12 R.G. Vanderweil Engineers, LLP $14,585,600 12 Greenman-Pedersen, Inc. $2,042,700 13 Clough Harbour & Associates LLP $12,525,000 13 The Chazen Companies $1,829,000 14 Joseph R. Loring & Associates, Inc. $10,659,000 14 SMWM LLP $1,622,700 15 Arup $10,116,600 15 Holzmacher, McLendon & Murrell, P.C. (H2M) $1,304,000 16 Lizardos Engineering Associates, P.C. $9,600,000 16 STV $1,278,100 17 Birdsall Services Group, Inc. $8,832,000 17 HDR $1,230,000 18 Cannon Design, Inc. $6,464,080 18 Cameron Engineering & Associates, LLP $1,211,600 19 Hazen and Sawyer, P.C. $6,014,000 19 HNTB Corporation $1,182,900 20 O’Dea, Lynch, Abbattista Consulting Engineers, PC $5,720,000 20 Urbahn Architects $1,020,500

Ranked by RETAIL FACILITIES REVENUE Revenue Ranked by ENTERTAINMENT, THEME PARKS, CASINOS Revenue

1 Langan Engineering & Environmental Services $12,328,400 1 JCJ Architecture $12,270,200 2 BL Companies, Inc. $9,161,880 2 Halcrow, Inc. $12,243,000 3 CMX Inc. $6,600,951 3 DeSimone Consulting Engineers $5,370,000 4 VHB/Vanasse Hangen Brustlin, Inc., and affiliate Eschbacher VHB $6,324,000 4 Langan Engineering & Environmental Services $4,351,200 5 T&M Associates $2,736,000 5 Thornton Tomasetti $4,159,680 6 BBG-BBGM $1,909,050 6 McLaren Engineering Group $2,105,600 7 Perkins Eastman $1,857,030 7 Paulus, Sokolowski and Sartor $1,455,300 8 Halcrow, Inc. $1,364,220 8 Birdsall Services Group, Inc. $1,104,000 9 Barteluce Architects & Associates $1,310,000 9 RMJM Hillier $607,104 10 Tectonic Engineering & Surveying Consultants P.C. $1,265,220 10 Urbahn Architects $506,168 11 FXFOWLE Architects LLP $1,260,000 12 Birdsall Services Group, Inc. $1,104,000 13 DeSimone Consulting Engineers $895,000 14 Spector Group $840,000 Ranked by SPORTS/RECREATION Revenue 15 The Chazen Companies $823,050

1 Thornton Tomasetti $13,518,960 2 Langan Engineering & Environmental Services $5,076,400 3 Skidmore, Owings & Merrill LLP $3,932,644 4 Mueser Rutledge Consulting Engineers $2,305,625 5 Birdsall Services Group, Inc. $2,208,000 6 The Thomas Group, A Tetra Tech Company $1,031,850 7 CSArch Architecture I Construction Management $848,500 8 R.G. Vanderweil Engineers, LLP $839,520 9 STV $766,860 10 Butler Rogers Baskett Architects $656,250

66 New York Construction 10/2008