| 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
Sports and Recreational Facilities | Mar 5, 2015
New HOK designs for St. Louis NFL stadium unveiled
Missouri Governor Jay Nixon has assembled a task force to develop plans for an open-air NFL stadium on the North Riverfront of downtown St. Louis.
Codes and Standards | Mar 5, 2015
Charlotte, N.C., considers rule for gender-neutral public bathrooms
A few other cities, including Philadelphia, Austin, Texas, and Washington D.C., already have gender-neutral bathroom regulations.
Codes and Standards | Mar 5, 2015
FEMA cuts off funding to Indiana after Kokomo continues building stadium in flood zone
FEMA will withhold funding on $5.5 million worth of projects such as building tornado safe rooms in schools.
Reconstruction & Renovation | Mar 5, 2015
Chicago's 7 most endangered properties
Preservation Chicago released its annual list of historic buildings that are at risk of being demolished or falling into decay.
Office Buildings | Mar 5, 2015
Goettsch Partners unveils plans for dual office towers in Warsaw
The Mennica Legacy Tower development is divided into a 35-story tower located on the south east side of the site and a 10-story building on the west side.
Hotel Facilities | Mar 4, 2015
Hotel construction pipeline reaches six-year high
After a three-year bottoming formation, the pipeline for hotel construction has posted five consecutive quarters of double-digit year-over-year growth.
BIM and Information Technology | Mar 4, 2015
Why China's CCTV building needed a WiFi retrofit
It took a year-long retrofit to get WiFi transmission issues solved at China's iconic skyscraper.
High-rise Construction | Mar 4, 2015
Must see: Egypt planning 656-foot pyramid skyscraper in Cairo
Zayed Crystal Spark Tower will stand 200 meters tall and will be just a short distance from the pyramids of Giza.
Transit Facilities | Mar 4, 2015
5+design looks to mountains for Chinese transport hub design
The complex, Diamond Hill, will feature sloping rooflines and a mountain-like silhouette inspired by traditional Chinese landscape paintings.
Energy Efficiency | Mar 4, 2015
DOE launches crowdsourcing website for technology innovators
The Oak Ridge National Laboratory launched a new crowdsourcing website called the Buildings Crowdsoucing Community to collect and share ideas by innovators for energy-efficient technologies to use in homes and buildings.
