| 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
K-12 Schools | Feb 26, 2015
Should your next school project include a safe room?
Many school districts continue to resist mandating the inclusion of safe rooms or storm shelters in new and existing buildings. But that may be changing.
K-12 Schools | Feb 26, 2015
Construction funding still scarce for many school districts
Many districts are struggling to have new construction and renovation keep pace with student population growth.
K-12 Schools | Feb 26, 2015
D.C.'s Dunbar High School is world's highest-scoring LEED school, earns 91% of base credits
The 280,000-sf school achieved 91 points, out of 100 base points possible for LEED, making it the highest-scoring school in the world certified under USGBC’s LEED for Schools-New Construction system.
K-12 Schools | Feb 25, 2015
Polish architect designs modular ‘kids city’ kindergarten using shipping container frames
Forget the retrofit of a shipping container into a building for one moment. Designboom showcases the plans of Polish architect Adam Wiercinski to use just the recycled frames of containers to construct a “kids city.”
Cultural Facilities | Feb 25, 2015
Bjarke Ingels designs geodesic dome for energy production, community use
A new building in Uppsala, Sweden, will serve as a power plant during the winter and a venue for shows, festivals, and music events during the warm months.
Cultural Facilities | Feb 25, 2015
Edmonton considering 'freezeway' to embrace winter
If the new Edmonton Freezeway is constructed, residents will have an 11-km course that winds through the city and allows them to skate to work, school, and other city activities.
Building Team | Feb 24, 2015
Call for entries: 2015 Giants 300 survey
The annual Giants 300 Report ranks the top AEC firms in commercial construction, by revenue.
Industrial Facilities | Feb 24, 2015
Starchitecture meets agriculture: OMA unveils design for Kentucky community farming facility
The $460 million Food Port project will define a new model for the relationship between consumer and producer.
University Buildings | Feb 23, 2015
Future-proofing educational institutions: 5 trends to consider
In response to rapidly changing conditions in K-12 and higher education, institutions and school districts should consider these five trends to ensure a productive, educated future.
Office Buildings | Feb 23, 2015
The importance of quiet and the consequences of distraction
Recent work style studies show that the average knowledge worker spends 25-35% of their time doing heads-down focused work. Once thrown off track, it can take some 23 minutes for a worker to return to the original task.
