| 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
| Jan 30, 2014
See how architects at NBBJ are using computational design to calculate the best views on projects [video]
In an ideal world, every office employee would have a beautiful view from his or her desk. While no one can make that happen in real life, computational design can help architects maximize views from every angle.
| Jan 30, 2014
The evolving workplace: One designer's inspiration board
"Open office" has been a major buzzword for decades, and like any buzzword, some of the novelty has worn off. I don't believe we will abandon the open office, but I do think we need to focus on providing a dynamic mix of open and closed spaces.
| Jan 30, 2014
How reverse engineering nature can spur design innovation
It’s not enough to copy nature. Today’s designers need a deeper understanding of environmental nuance, from the biome in.
| Jan 30, 2014
What to expect in the metal building industry in 2014
Every year brings changes. This one won’t be any different. We’ll see growth in some areas, declines in others. Here’s a little preview of what we’ll be writing about 2014 when 2015 comes rolling in.
| Jan 30, 2014
What's in store for healthcare capital markets in 2014?
Despite the shake up stemming from the Affordable Care Act, 2014 will be an active year in healthcare capital markets, according to real estate experts from CBRE Healthcare.
| Jan 29, 2014
Richard Meier unveils 'urban courtyard' scheme for Mexico City towers
A grand atrium, reaching some 30 stories, highlights the contemporary, bright-white design scheme unveiled this week by Richard Meier & Partners for a new mixed-use development in Mexico City.
| Jan 29, 2014
Historic church will be part of new condo building in D.C.
Sorg Architects unveiled a design scheme for 40 condos in a six-story building, which will wrap around an existing historic church, and will itself contain four residential units.
| Jan 29, 2014
Hotel, retail, recreation sectors to lead growth in 2014
AIA's Consensus Construction Forecast, a survey of the nation’s leading construction forecasters, is projecting that spending will see a 5.8% increase in 2014, led by the hotel, retail, and amusement/recreation sectors.
| Jan 29, 2014
Notre Dame to expand football stadium in largest project in school history
The $400 million Campus Crossroads Project will add more than 750,000 sf of academic, student life, and athletic space in three new buildings attached to the school's iconic football stadium.
| Jan 29, 2014
AIA honors 18 with 2014 Young Architects Award
Three recent BD+C "40 Under 40" winners are among the outstanding young architects recognized by the AIA.
