May 2018
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:
Designers Bring Innovation to Growing Market
Click below for earlier editions:
2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 |
2007
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| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 196.23 |
| 2 | HDR | 145.70 |
| 3 | ARUP | 31.24 |
| 4 | ARCADIS NORTH AMERICA | 27.13 |
| 5 | BURNS & MCDONNELL | 24.50 |
| 6 | THORNTON TOMASETTI INC. | 23.28 |
| 7 | IMEG CORP. | 13.71 |
| 8 | WALTER P MOORE | 11.34 |
| 9 | WISS, JANNEY, ELSTNER ASSOCIATES | 8.32 |
| 10 | HMC ARCHITECTS | 6.84 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | PSOMAS | 29.77 |
| 2 | SANDIS CIVIL ENGINEERS SURVEYORS PLANNERS | 17.03 |
| 3 | BKF ENGINEERS | 16.18 |
| 4 | MICHAEL BAKER INTERNATIONAL | 9.06 |
| 5 | DAVID EVANS ENTERPRISES INC. | 8.54 |
| 6 | BURNS & MCDONNELL | 6.53 |
| 7 | STANTEC | 5.74 |
| 8 | WOOD RODGERS, INC. | 5.63 |
| 9 | MARK THOMAS & CO. | 5.40 |
| 10 | PROJECT DESIGN CONSULTANTS | 3.03 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | GENSLER | 226.16 |
| 2 | ARUP | 132.38 |
| 3 | HMC ARCHITECTS | 65.53 |
| 4 | SMITHGROUPJJR | 60.81 |
| 5 | LPA INC. | 55.00 |
| 6 | STANTEC | 46.09 |
| 7 | HOK | 46.07 |
| 8 | DLR GROUP | 32.20 |
| 9 | PERKINS+WILL | 30.13 |
| 10 | HDR | 25.75 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 70.19 |
| 2 | BURNS & MCDONNELL | 65.35 |
| 3 | ARUP | 35.84 |
| 4 | STANTEC | 33.20 |
| 5 | PRIMORIS SERVICES CORP. | 32.60 |
| 6 | SYSKA HENNESSY GROUP | 20.76 |
| 7 | IMEG CORP. | 19.10 |
| 8 | EXP | 18.69 |
| 9 | INTERFACE ENGINEERING INC. | 18.42 |
| 10 | INTEGRAL GROUP INC. | 18.00 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | AECOM | 246.45 |
| 2 | HDR | 161.26 |
| 3 | ARCADIS NORTH AMERICA | 129.06 |
| 4 | STANTEC | 86.67 |
| 5 | KLEINFELDER | 78.02 |
| 6 | NINYO & MOORE GEOTECHNICAL AND ENVIRONMENTAL SCIENCES | 43.00 |
| 7 | WOODARD & CURRAN | 36.67 |
| 8 | LANGAN | 34.00 |
| 9 | GEOCON | 33.74 |
| 10 | BURNS & MCDONNELL | 24.50 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HMC ARCHITECTS | 42.30 |
| 2 | GENSLER | 41.49 |
| 3 | AECOM | 35.49 |
| 4 | LPA INC. | 32.60 |
| 5 | DLR GROUP | 25.00 |
| 6 | QUATTROCCHI KWOK ARCHITECTS | 22.20 |
| 7 | HKS | 14.10 |
| 8 | SKIDMORE, OWINGS & MERRILL LLP | 13.00 |
| 9 | CO ARCHITECTS | 12.69 |
| 10 | ZGF ARCHITECTS LLP | 11.00 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | SMITHGROUPJJR | 49.83 |
| 2 | HMC ARCHITECTS | 37.65 |
| 3 | PERKINS+WILL | 29.73 |
| 4 | HDR | 28.94 |
| 5 | STANTEC | 26.59 |
| 6 | LIONAKIS | 18.28 |
| 7 | PERKINS EASTMAN | 18.23 |
| 8 | IMEG CORP. | 13.59 |
| 9 | HOK | 13.10 |
| 10 | KIMLEY-HORN | 12.46 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HDR | 70.51 |
| 2 | AECOM | 53.71 |
| 3 | GEI CONSULTANTS INC. | 45.12 |
| 4 | CAROLLO ENGINEERS INC. | 28.75 |
| 5 | MICHAEL BAKER INTERNATIONAL | 24.14 |
| 6 | STANTEC | 21.27 |
| 7 | KENNEDY/JENKS CONSULTANTS INC. | 20.57 |
| 8 | PSOMAS | 14.14 |
| 9 | WOODARD & CURRAN | 14.02 |
| 10 | WOOD RODGERS INC. | 10.95 |
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