ENR Mountain States & Southwest Top Design Firms 2025
The ENR Mountain States & Southwest 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:
Colorado/Wyoming Top Design Firms by Sectors
Related Article:
Mountain States & Southwest Design Firms Shift to Align with Evolving Market Priorities
Click here for archived ENR Mountain States and Southwest top lists.
ENR Mountain States & Southwest 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 | WSP USA Seattle | wsp.com Karen Doherty, Regional Executive |
25 822 221 |
Mountain View Corridor Saratoga Springs, Utah 267.98 |
44 Power 26 Transportation 10 Other Project Types |
575.79 |
| 2 | AECOM* Denver | aecom.com Matthew Crane, EVP, West Region Chief Executive |
21 314 22 |
I-25 Improved; Comanche to Montgomery Design-Build Project, Albuquerque 278.00 |
33 Water Supply 30 Transportation 17 Hazardous Waste |
340.07 |
| 3 | HDR Omaha | hdrinc.com John Henderson, CEO |
24 428 53 |
Not Provided | 41 Transportation 18 Water Supply 14 General Building |
332.81 |
| 4 | Kimley-Horn Las Vegas | kimley-horn.com Chris Jones, Regional Leader, Southwest Region |
1 386 24 |
Not Provided | 44 General Building 34 Transportation 6 Telecommunications |
278.54 |
| 5 | Burns & McDonnell Denver | burnsmcd.com Zach Herrington, Senior Vice President, Americas West |
4 174 8 |
Not Provided | 65 Power 8 Telecommunications 6 Hazardous Waste |
257.76 |
| 6 | Stantec Chandler, Ariz. | stantec.com Sarah Mcilroy, Vice President, Regional Leader, US West |
52 254 14 |
Florence Copper Florence, Ariz. 232.00 |
22 Other Project Types 20 Water Supply 19 Transportation |
253.92 |
| 7 | Merrick & Co. Greenwood Village, Colo. | merrick.com Tamara Johnson, President & CEO |
5 154 20 |
Not Provided | 79 General Building 7 Sewerage/Solid Waste 6 Water Supply |
150.90 |
| 8 | Terracon Olathe, Kan. | terracon.com Tim W. Anderson, Chief Operating Officer |
8 54 3 |
Malmstrom Air Force Base Weapons Storage and Maintenance Facility Great Falls, Mont. 376.90 |
30 General Building 22 Power 15 Hazardous Waste |
139.60 |
| 9 | Arcadis North America Highlands Ranch, Colo. | arcadis.com John McCarthy, President, Arcadis North America |
0 0 0 |
Not Provided | 57 Hazardous Waste 32 Water Supply 4 General Building |
104.94 |
| 10 | Electrical Consultants Inc. Billings, Mont. | eciusa.com Richard McComish, Principal |
0 61 0 |
NVE Sierra BESS Churchill County, Ariz. 143.00 |
100 Power |
104.40 |