| Rank | Company | 2012 S+T Revenue ($) |
| 1 | Affiliated Engineers | $19,824,000 |
| 2 | Middough | $13,900,000 |
| 3 | URS Corp. | $11,772,124 |
| 4 | Bard, Rao + Athanas Consulting Engineers | $10,500,000 |
| 5 | RMF Engineering Design | $9,200,000 |
| 6 | Vanderweil Engineers | $7,851,900 |
| 7 | Paulus, Sokolowski and Sartor | $7,500,000 |
| 8 | WSP USA | $5,772,095 |
| 9 | Science Applications International Corp. | $3,103,152 |
| 10 | STV | $2,937,000 |
| 11 | Clark Nexsen | $2,911,405 |
| 12 | Haynes Whaley Associates | $2,303,235 |
| 13 | AKF Group | $2,000,000 |
| 14 | Syska Hennessy Group | $1,727,813 |
| 15 | CCRD Partners | $1,500,000 |
| 16 | Interface Engineering | $1,467,579 |
| 17 | Glumac | $1,332,000 |
| 18 | Rist-Frost-Shumway Engineering | $1,300,000 |
| 19 | Wiss, Janney, Elstner Associates | $1,120,000 |
| 20 | KJWW Engineering Consultants | $1,003,412 |
| 21 | KPFF Consulting Engineers | $1,000,000 |
| 22 | Rolf Jensen & Associates | $800,000 |
| 23 | Environmental Systems Design | $753,418 |
| 24 | RDK Engineers | $736,000 |
| 25 | Eaton Energy Solutions | $664,808 |
| 26 | Karpinski Engineering | $632,422 |
| 27 | Bergmann Associates | $607,000 |
| 28 | Mazzetti | $561,184 |
| 29 | Degenkolb Engineers | $494,831 |
| 30 | Henderson Engineers | $426,042 |
| 31 | Coffman Engineers | $400,000 |
| 32 | Walter P Moore | $345,245 |
| 33 | TTG | $320,000 |
| 34 | Thornton Tomasetti | $318,157 |
| 35 | TLC Engineering for Architecture | $311,623 |
| 36 | Aon Fire Protection Engineering | $300,000 |
| 37 | Sparling | $253,574 |
| 38 | OLA Consulting Engineers | $250,000 |
| 39 | Dunham Associates | $200,000 |
| 39 | M-E Engineers | $200,000 |
| 41 | CTLGroup | $100,000 |
| 41 | G&W Engineering | $100,000 |
| 43 | CJL Engineering | $64,964 |
| 44 | Spectrum Engineers | $58,546 |
| 45 | French & Parrello Associates | $50,000 |
| 46 | Allen & Shariff | $30,000 |
| 47 | Primera Engineers | $28,000 |
| 48 | FBA Engineering | $25,000 |
Back to the Science and Technology Sector Giants article
Read BD+C's full Giants 300 Report
Related Stories
Arenas | Sep 20, 2021
LA Clippers unveil $1.8 billion Intuit Dome
AECOM is the lead designer for the project.
University Buildings | Sep 7, 2021
Gateway to the West: Kansas City University Center for Medical Education Innovation
Kansas City University Center for Medical Education Innovation uses GKD Omega 1520 metal fabric.
Architects | Sep 2, 2021
Remembering architect and author Lance Hosey: 1964 - 2021
Architect, sustainability expert, author, and public speaker Lance Hosey passed away unexpectedly on August 27.
Multifamily Housing | Sep 1, 2021
Top 10 outdoor amenities at multifamily housing developments for 2021
Fire pits, lounge areas, and covered parking are the most common outdoor amenities at multifamily housing developments, according to new research from Multifamily Design+Construction.
Architects | Sep 1, 2021
Design unveiled for Copia Vineyards Winery and Tasting Room
Clayton Korte designed the project.
Giants 400 | Aug 30, 2021
2021 Giants 400 Report: Ranking the largest architecture, engineering, and construction firms in the U.S.
The 2021 Giants 400 Report includes more than 130 rankings across 25 building sectors and specialty categories.
Laboratories | Aug 30, 2021
Science in the sky: Designing high-rise research labs
Recognizing the inherent socioeconomic and environmental benefits of high-density design, research corporations have boldly embraced high-rise research labs.
Giants 400 | Aug 27, 2021
2021 Healthcare Sector Giants: Top architecture, engineering, and construction firms in the U.S. healthcare facilities sector
HDR, AECOM, Turner Construction, and Brasfield & Gorrie head BD+C's rankings of the nation's largest healthcare facilities sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.
Giants 400 | Aug 27, 2021
2021 Office Sector Giants: Top architecture, engineering, and construction firms in the U.S. office building sector
Gensler, Jacobs, Turner Construction, and STO Building Group head BD+C's rankings of the nation's largest office building sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.a
Giants 400 | Aug 26, 2021
2021 University Giants: Top architecture, engineering, and construction firms in the higher education sector
Gensler, AECOM, Turner Construction, and CannonDesign head BD+C's rankings of the nation's largest university sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.
