| Rank | Company | 2012 Total Revenue ($) |
| 1 | Jacobs Engineering Group | $2,715,210,000 |
| 2 | AECOM Technology Corp. | $1,610,390,000 |
| 3 | Parsons Brinckerhoff | $337,900,000 |
| 4 | URS Corp. | $314,266,757 |
| 5 | Buro Happold Consulting Engineers | $194,220,000 |
| 6 | Burns & McDonnell | $160,645,000 |
| 7 | Thornton Tomasetti | $124,575,393 |
| 8 | Science Applications International Corp. | $120,249,686 |
| 9 | Merrick & Co. | $103,998,000 |
| 10 | SSOE Group | $103,708,918 |
| 11 | Michael Baker Jr. | $88,880,000 |
| 12 | Day & Zimmermann | $85,898,442 |
| 13 | STV | $80,107,000 |
| 14 | Wiss, Janney, Elstner Associates | $75,000,000 |
| 15 | Dewberry | $72,755,906 |
| 16 | Simpson Gumpertz & Heger | $65,200,000 |
| 17 | Clark Nexsen | $62,273,849 |
| 18 | AKF Group | $62,000,000 |
| 19 | H&A Architects & Engineers | $43,335,401 |
| 20 | Middough | $41,000,000 |
| 21 | Walker Parking Consultants | $36,931,722 |
| 22 | Shive-Hattery | $34,263,616 |
| 23 | Barge, Waggoner, Sumner and Cannon | $30,700,000 |
| 24 | BRPH | $28,890,000 |
| 25 | Bergmann Associates | $25,398,000 |
| 26 | Hixson Architecture, Engineering, Interiors | 21,000,000 |
| 27 | Guernsey | 19,070,104 |
| 28 | Ross & Baruzzini | 16,705,127 |
| 29 | Paulus, Sokolowski and Sartor | 15,200,000 |
| 30 | GRAEF | 13,964,170 |
| 31 | Zak Companies | 13,814,233 |
| 32 | CJL Engineering | 12,992,858 |
| 33 | Spectrum Engineers | 10,890,075 |
| 34 | Davis, Bowen & Friedel | 10,777,296 |
| 35 | Gray | 10,454,722 |
| 36 | Stanley Consultants | 10,151,414 |
| 37 | Primera Engineers | 5,398,000 |
| 39 | GRW | 3,552,200 |
Read the Engineering Giants article
Read BD+C's full Giants 300 Report
Related Stories
| Mar 26, 2014
Zaha Hadid's glimmering 'cultural hub of Seoul' opens with fashion, flair [slideshow]
The new space, the Dongdaemun Design Plaza, is a blend of park and cultural spaces meant for the public to enjoy.
| Mar 26, 2014
First look: Lockheed Martin opens Advanced Materials and Thermal Sciences Center in Palo Alto
The facility will host advanced R&D in emerging technology areas like 3D printing, energetics, thermal sciences, and nanotechnology.
| Mar 25, 2014
Sydney breaks ground on its version of the High Line elevated park [slideshow]
The 500-meter-long park will feature bike paths, study pods, and outdoor workspaces.
Sponsored | | Mar 25, 2014
Johns Hopkins chooses SLENDERWALL for a critical medical facility reconstruction
After decades of wear, the hand-laid brick envelope of the Johns Hopkins nine-story Nelson/Harvey inpatient facility began failing. SLENDERWALL met the requirements for renovation.
| Mar 25, 2014
World's tallest towers: Adrian Smith, Gordon Gill discuss designing Burj Khalifa, Kingdom Tower
The design duo discusses the founding of Adrian Smith + Gordon Gill Architects and the design of the next world's tallest, Kingdom Tower, which will top the Burj Khalifa by as much as a kilometer.
| Mar 24, 2014
Shigeru Ban receives 2014 Pritzker Architecture Prize
Shigeru Ban, a Tokyo-born, 56-year-old architect with offices in Tokyo, Paris, and New York, is rare in the field of architecture. He designs elegant, innovative work for private clients, and uses the same inventive and resourceful design approach for his extensive humanitarian efforts.
| Mar 24, 2014
Snøhetta unveils plans for serpentine mountain hotel
The winding hotel and apartment building will be built between the mountains and the sea in remote Glåpen, Norway.
| Mar 24, 2014
Frank Lloyd Wright's S.C. Johnson Research Tower to open to the public—32 years after closing
The 14-story tower, one of only two Wright-designed high-rises to be built, has been off limits to the public since its construction in 1950.
Sponsored | | Mar 21, 2014
Kameleon Color paint creates color-changing, iridescent exterior for Exploration Tower at Port Canaveral
Linetec finishes Firestone’s UNA-CLAD panels, achieving a one-of-a-kind, dynamic appearance with the first use of Valspar’s new Kameleon Color
| Mar 21, 2014
Forget wood skyscrapers - Check out these stunning bamboo high-rise concepts [slideshow]
The Singapore Bamboo Skyscraper competition invited design teams to explore the possibilities of using bamboo as the dominant material in a high-rise project for the Singapore skyline.
