| Rank | Company | 2012 Total Revenue ($) |
| 1 | Fluor | $221,231,200 |
| 2 | Arup | $149,738,587 |
| 3 | Affiliated Engineers | $105,503,000 |
| 4 | WSP USA | $105,362,352 |
| 5 | KPFF Consulting Engineers | $91,000,000 |
| 6 | Syska Hennessy Group | $82,097,502 |
| 7 | Henderson Engineers | $63,485,775 |
| 8 | Smith Seckman Reid | $52,919,312 |
| 9 | KJWW Engineering Consultants | $51,092,154 |
| 10 | Vanderweil Engineers | $50,552,200 |
| 11 | TTG | $49,968,167 |
| 12 | Glumac | $47,967,000 |
| 13 | Bard, Rao + Athanas Consulting Engineers | $41,500,000 |
| 14 | Rolf Jensen & Associates | $40,000,000 |
| 15 | Coffman Engineers | $39,100,000 |
| 16 | Environmental Systems Design | $38,763,000 |
| 17 | Magnusson Klemencic Associates | $37,462,767 |
| 18 | M-E Engineers | $35,400,000 |
| 19 | TLC Engineering for Architecture | $34,295,957 |
| 20 | RMF Engineering Design | $32,300,000 |
| 21 | RDK Engineers | $31,201,000 |
| 22 | Walter P Moore | $29,092,693 |
| 23 | H.F. Lenz | $26,991,500 |
| 24 | Interface Engineering | $25,193,936 |
| 25 | Degenkolb Engineers | $25,127,432 |
| 26 | CCRD Partners | 25,100,000 |
| 27 | Mazzetti | 24,895,804 |
| 28 | Robins & Morton | 24,500,000 |
| 29 | M/E Engineering | 22,687,000 |
| 30 | Aon Fire Protection Engineering | 22,510,728 |
| 31 | Heapy Engineering | 22,116,941 |
| 32 | Sparling | 20,282,073 |
| 33 | Haynes Whaley Associates | 19,907,949 |
| 34 | Newcomb & Boyd | 18,617,195 |
| 35 | KCI Technologies | 18,032,000 |
| 36 | Bridgers & Paxton Consulting Engineers | 16,868,884 |
| 37 | GHT Limited | 16,834,469 |
| 38 | Bala Consulting Engineers | 16,430,000 |
| 39 | French & Parrello Associates | 15,903,300 |
| 40 | ThermalTech Engineering | 15,500,000 |
| 41 | Joseph R. Loring & Associates | 15,000,000 |
| 42 | KLH Engineers | 14,072,830 |
| 43 | Dunham Associates | 14,000,000 |
| 44 | Wallace Engineering | 13,350,000 |
| 45 | P2S Engineering | 12,962,044 |
| 46 | Karpinski Engineering | 12,076,943 |
| 47 | Peter Basso Associates | 11,016,000 |
| 48 | Rist-Frost-Shumway Engineering | 9,300,000 |
| 49 | CTLGroup | 9,000,000 |
| 50 | Allen & Shariff | 8,500,000 |
| 51 | Wick Fisher White | 8,126,951 |
| 52 | Brinjac Engineering | 6,890,645 |
| 53 | OLA Consulting Engineers | 5,500,000 |
| 54 | Eaton Energy Solutions | 4,430,095 |
| 55 | Kamm Consulting | 3,681,775 |
| 56 | FBA Engineering | 3,360,000 |
| 57 | Apogee Consulting Group | 3,331,300 |
| 58 | G&W Engineering | 2,408,800 |
| 59 | Total Building Commissioning | 616,878 |
| 60 | Yates Cos., The | 400,000 |
| 61 | Weis Builders | 300,000 |
Related Stories
| Jun 2, 2014
OSHA launches 'stand down' program to promote fall prevention
New program urges firms to explore ways to prevent jobsite falls, which are a leading cause of death and injury for construction workers.
| May 30, 2014
MIT researchers create 'home in a box' transformable wall system for micro apartments
Dubbed CityHome, the system integrates furniture, storage, exercise equipment, lighting, office equipment, and entertainment systems into a compact wall unit.
| May 30, 2014
Riding high: L.A., Chicago working on their version of the High Line elevated park
Cities around the U.S. are taking notice of New York's highly popular High Line elevated park system. Both Chicago and Los Angeles are currently working on High Line-like projects.
| May 30, 2014
Developer will convert Dallas' storied LTV Building into mixed-use residential tower
New Orleans-based HRI Properties recently completed the purchase of one of the most storied buildings in downtown Dallas. The developer will convert the LTV Building into a mixed-use complex, with 171 hotel rooms and 186 luxury apartments.
| May 29, 2014
Turn your pen-and-paper sketches into digital drawings in seconds with this nifty gadget [video]
Funded through Kickstarter, iSketchnote uses a smart pen to instantly digitize hand-written notes and drawings.
| May 29, 2014
Wood advocacy groups release 'lessons learned' report on tall wood buildings
The wood-industry advocacy group reThink Wood has released "Summary Report: Survey of International Tall Wood Buildings," with informatino from 10 mid-rise projects in Europe, Australia, and Canada.
| May 29, 2014
Five finalists, including SOM and Zaha Hadid, chosen in competition for Sweden's tallest skyscraper
In Sernecke's competition to design Sweden's tallest skyscraper, five finalists have been selected: Manuelle Gautrand Architects, Ian Simpson Architects, SOM, Wingårdhs Arkitektkontor, and Zaha Hadid Architects.
| May 29, 2014
Retail renovation trends: Omni-channel shopping, personalized experiences among top goals of new store designs
In pursuit of enhanced customer experiences, retailers are using Big Data, interactive technology, and omni-channel shopping to transform their bricks and mortar locations.
| May 28, 2014
KPF's dual towers in Turkey will incorporate motifs, symbols of Ottoman Empire
The two-building headquarters for Turkey’s largest and oldest financial institution, Ziraat Bank, is inspired by the country’s cultural heritage.
| May 28, 2014
Moshe Safdie's twin residential towers in Singapore will be connected by 'sky pool' 38 stories in the air [slideshow]
Moshe Safdie's latest project, a pair of 38-story luxury residential towers in Singapore, will be linked by three "sky garden" bridges, including a rooftop-level bridge with a lap pool running the length between the two structures.
