November 2018
The ENR Northwest 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:
Public Sector Spending Drives Activity in Region
Click below for earlier editions:
2017
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | DAVID EVANS ENTERPRISES INC. | 77.50 |
| 2 | OTAK INC. | 26.34 |
| 3 | ZGF ARCHITECTS LLP | 25.26 |
| 4 | STANTEC | 22.88 |
| 5 | AECOM | 16.92 |
| 6 | MURRAYSMITH | 15.82 |
| 7 | INTERFACE ENGINEERING | 13.47 |
| 8 | PBS ENGINEERING AND ENVIRONMENTAL INC. | 12.43 |
| 9 | DLR GROUP | 12.30 |
| 10 | PARAMETRIX | 11.42 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HNTB CORP. | 75.87 |
| 2 | PARAMETRIX | 62.26 |
| 3 | STANTEC | 55.95 |
| 4 | AECOM | 54.28 |
| 5 | ZGF ARCHITECTS LLP | 41.79 |
| 6 | DAVID EVANS ENTERPRISES INC. | 35.55 |
| 7 | WSP USA | 24.82 |
| 8 | DLR GROUP | 24.25 |
| 9 | TERRACON CONSULTANTS INC. | 20.94 |
| 10 | MOTT MACDONALD | 20.23 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | DOWL | 26.53 |
| 2 | STANTEC | 23.58 |
| 3 | R&M CONSULTANTS INC. | 19.10 |
| 4 | AECOM | 16.60 |
| 5 | MICHAEL BAKER INTERNATIONAL | 11.44 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | HNTB CORP. | 76.93 |
| 2 | DAVID EVANS ENTERPRISES INC. | 51.44 |
| 3 | PARAMETRIX | 36.76 |
| 4 | AECOM | 26.51 |
| 5 | WSP USA | 24.29 |
| 6 | MOTT MACDONALD | 21.88 |
| 7 | DOWL | 17.49 |
| 8 | STANTEC | 16.08 |
| 9 | PARSONS | 14.98 |
| 10 | R&M CONSULTANTS INC. | 14.64 |
| 11 | OTAK INC. | 11.85 |
| 12 | MEAD & HUNT INC. | 8.11 |
| 13 | ZGF ARCHITECTS LLP | 7.77 |
| 14 | MURRAYSMITH | 7.12 |
| 15 | PBS ENGINEERING AND ENVIRONMENTAL INC. | 3.77 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | STANTEC | 33.24 |
| 2 | AECOM | 7.73 |
| 3 | MURRAYSMITH | 7.66 |
| 4 | CAROLLO ENGINEERS | 6.12 |
| 5 | KENNEDY/JENKS CONSULTANTS INC. | 3.54 |
| 6 | OTAK INC. | 3.50 |
| 7 | PARAMETRIX | 3.33 |
| 8 | DOWL | 3.16 |
| 9 | DAVID EVANS ENTERPRISES INC. | 2.53 |
| 10 | MICHAEL BAKER INTERNATIONAL | 1.69 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | PARAMETRIX | 11.42 |
| 2 | CAROLLO ENGINEERS | 10.32 |
| 3 | KENNEDY/JENKS CONSULTANTS INC. | 8.86 |
| 4 | MURRAYSMITH | 7.66 |
| 5 | OTAK INC. | 4.12 |
| 6 | STANTEC | 3.88 |
| 7 | PBS ENGINEERING AND ENVIRONMENTAL INC. | 3.15 |
| 8 | DAVID EVANS ENTERPRISES INC. | 2.53 |
| 9 | AECOM | 2.28 |
| 10 | DOWL | 0.76 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | INTERFACE ENGINEERING | 15.93 |
| 2 | DOWL | 13.02 |
| 3 | CARDNO | 7.73 |
| 4 | ZGF ARCHITECTS LLP | 4.25 |
| 5 | PARAMETRIX | 3.47 |
| 6 | R&M CONSULTANTS INC. | 3.03 |
| 7 | MAZZETTI | 3.00 |
| 8 | DLR GROUP | 1.50 |
| 9 | KLEINFELDER | 1.46 |
| 10 | OTAK INC. | 0.29 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | STANTEC | 6.73 |
| 2 | DAVID EVANS ENTERPRISES INC. | 4.44 |
| 3 | AECOM | 2.12 |
| 4 | CARDNO | 1.48 |
| 5 | WSP USA | 1.03 |
| RANK | FIRM | $ MIL. |
|---|---|---|
| 1 | ZGF ARCHITECTS LLP | 25.62 |
| 2 | STANTEC | 10.43 |
| 3 | DLR GROUP | 6.05 |
| 4 | PBS ENGINEERING AND ENVIRONMENTAL INC. | 3.60 |
| 5 | TERRACON CONSULTANTS INC. | 3.53 |
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