ENR West Top Design Firms 2025
The ENR West 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:
Top Design Firms Rankings by Sectors
Related Article:
West Coast Firms Move Cautiously Amid Uncertain Outlook
Click here for archived ENR California & Northwest top lists.
ENR West Top Design Firms 2025
| Rank 2025 |
Company Location/Website Top Officer |
Lic. Arch. Engr. Leed AP |
Largest Project to Break Ground Location Project Value ($ Mil.) |
Market Sectors By % of Revenue** | Regional Rev. 2024 ($ Mil) |
|---|---|---|---|---|---|
| 1 | AECOM* Los Angeles | aecom.com Matthew Crane, Executive Vice President, West Region Chief Executive |
41 507 95 |
Relocate Runway 3-21, Runway Safety Area, Lihue Airport Lihue, Kauai, Hawaii 155.60 |
33 Transportation 19 Hazardous Waste 18 Water Supply |
1,140.13 |
| 2 | WSP USA Seattle | wsp.com Karen Doherty, Regional Executive |
33 1,222 499 |
P-891 Shipyard Electrical Backbone (Puget Sound Naval Shipyard) Bremerton, Wash. 145.00 |
47 Transportation 17 Power 14 General Building |
919.83 |
| 3 | HDR Folsom, Calif. | hdrinc.com Holly Kennedy, Director of Strategic Planning |
92 750 137 |
Not Provided | 44 Transportation 16 Water Supply 12 Sewerage/Solid Waste |
897.61 |
| 4 | Stantec Sacramento | stantec.com Sarah McIlroy, Vice President, Regional Leader, U.S. West |
101 428 2 |
Bull Run Filtration Facility Water Treatment Plant Portland , Ore. 1,300.00 |
26 General Building 25 Water Supply 14 Power |
821.52 |
| 5 | HNTB Corp. Los Angeles | hntb.com Michelle Dippel, Executive Vice President, Western Region President |
31 197 34 |
Not Provided | 93 Transportation 7 General Building |
526.03 |
| 6 | Kimley-Horn Orange, Calif. | kimley-horn.com Jason Matson, Regional Leader, California Region |
1 393 41 |
Not Provided | 45 Transportation 38 General Building 8 Telecommunications |
401.61 |
| 7 | TRC Cos. Irvine, Calif. | trccompanies.com Mike Glenn, Senior Vice President, EHS and Quality |
0 0 0 |
Not Provided | 57 Power 20 Transportation 11 Hazardous Waste |
339.78 |
| 8 | Parsons Pasedena, Calif. | parsons.com Lisa Maurath, Senior Vice President |
30 520 59 |
Not Provided | 78 Transportation 10 Water Supply 5 Petroleum |
284.80 |
| 9 | Arcadis North America Highlands Ranch, Colo. | arcadis.com John McCarthy, President, Arcadis North America |
0 0 0 |
Not Provided | 55 Hazardous Waste 18 General Building 7 Transportation |
251.14 |
| 10 | Burns & McDonnell Brea, Calif. | burnsmcd.com Zach Herrington, Senior Vice President, Americas West |
4 104 13 |
Northrop Grumman Hangar Construction Palmdale, Calif. Not Provided |
44 Power 17 General Building 15 Transportation |
235.82 |