May 2017
The ENR California Top Design Firms list, ranks the largest U.S.-based designs firms, both publicly and privately held, based on design-specific revenue.

More detailed information on the Top Design Firms:
View Complete List of Main Rankings
Related Article:
Infrastructure Propels Bullish Design Market
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2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 |
2008 |
2007
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| RANK | FIRM | $ MIL |
| 1 | GENSLER | 218.69 |
| 2 | ARUP | 111.14 |
| 3 | SMITHGROUPJJR | 46.30 |
| 4 | LPA INC. | 45.01 |
| 5 | STANTEC | 38.26 |
| 6 | CORGAN | 34.92 |
| 7 | DLR GROUP | 32.17 |
| 8 | HKS INC. | 25.26 |
| 9 | DES ARCHITECTS + ENGINEERS | 22.07 |
| 10 | WSP | 20.83 |
| RANK | FIRM | $ MIL |
| 1 | GENSLER | 258.23 |
| 2 | AECOM | 134.14 |
| 3 | SMITHGROUPJJR | 82.06 |
| 4 | STANTEC | 81.65 |
| 5 | HMC ARCHITECTS | 77.08 |
| 6 | ARUP | 74.83 |
| 7 | LPA INC. | 66.90 |
| 8 | BKF ENGINEERS | 64.12 |
| 9 | HOK | 58.91 |
| 10 | MICHAEL BAKER INTERNATIONAL | 52.90 |
| RANK | FIRM | $ MIL |
| 1 | AECOM | 18.72 |
| 2 | HOK | 10.06 |
| 3 | LIONAKIS | 9.27 |
| 4 | DLR GROUP | 9.00 |
| 5 | STANTEC | 2.85 |
| RANK | FIRM | $ MIL |
| 1 | AECOM | 41.49 |
| 2 | HMC ARCHITECTS | 36.97 |
| 3 | GENSLER | 34.29 |
| 4 | LPA INC. | 33.38 |
| 5 | DLR GROUP | 24.12 |
| RANK | FIRM | $ MIL |
| 1 | SMITHGROUPJJR | 54.78 |
| 2 | HMC ARCHITECTS | 37.88 |
| 3 | STANTEC | 26.03 |
| 4 | PERKINS EASTMAN | 25.12 |
| 5 | MAZZETTI INC. | 18.70 |
| 6 | PERKINS+WILL | 16.00 |
| 7 | LIONAKIS | 15.34 |
| 8 | TAYLOR DESIGN | 15.29 |
| 8 | ARUP | 15.29 |
| 10 | HOK | 15.03 |
| RANK | FIRM | $ MIL |
| 1 | AECOM | 219.15 |
| 2 | ARCADIS NORTH AMERICA | 112.31 |
| 3 | TERRACON CONSULTANTS INC. | 8.66 |
| 4 | NINYO & MOORE | 8.20 |
| 5 | MICHAEL BAKER INTERNATIONAL | 5.45 |
| RANK | FIRM | $ MIL |
| 1 | STANTEC | 23.47 |
| 2 | CRB | 22.89 |
| 3 | WOODARD & CURRAN | 18.67 |
| 4 | AECOM | 4.64 |
| 5 | LANGAN | 2.20 |
| RANK | FIRM | $ MIL |
| 1 | SPEC SERVICES INC. | 43.80 |
| 2 | STANTEC | 43.64 |
| 3 | AECOM | 34.17 |
| 4 | CARDNO | 12.29 |
| 5 | PSOMAS | 7.10 |
| RANK | FIRM | $ MIL |
| 1 | BURNS & MCDONNELL | 88.01 |
| 2 | AECOM | 71.80 |
| 3 | STANTEC | 19.77 |
| 4 | HDR | 17.13 |
| 5 | KLEINFELDER | 7.88 |
| RANK | FIRM | $ MIL |
| 1 | WSP | 253.39 |
| 2 | AECOM | 217.33 |
| 3 | HDR | 123.08 |
| 4 | HNTB CORP. | 121.82 |
| 5 | KIMLEY-HORN | 67.33 |
| 6 | STANTEC | 64.49 |
| 7 | T.Y. LIN INTERNATIONAL | 51.66 |
| 8 | CORGAN | 50.23 |
| 9 | MOTT MACDONALD | 47.30 |
| 10 | ARUP | 36.31 |
| RANK | FIRM | $ MIL |
| 1 | AECOM | 54.68 |
| 2 | HDR | 53.65 |
| 3 | CAROLLO ENGINEERS INC. | 37.22 |
| 4 | GEI CONSULTANTS INC. | 33.10 |
| 5 | MICHAEL BAKER INTERNATIONAL | 29.54 |
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