| 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
| Oct 3, 2014
New survey tracks Americans’ attitudes towards transit use
A record 10.7 billion rides were taken on public transit in the United States last year. And a national survey of Americans finds that the speed, reliability, and cost, more than any other factors, determine people’s willingness and frequency of use.
| Oct 2, 2014
Effective use of building enclosure mock-ups within the commissioning process
Engineers from SSR offer advice and guidelines on implementing building enclosure mockups on any project.
| Oct 2, 2014
Budget busters: Report details 24 of the world's most obscenely over-budget construction projects
Montreal's Olympic Stadium and the Sydney Opera House are among the landmark projects to bust their budgets, according to a new interactive graph by Podio.
| Oct 1, 2014
Long-time competitors NAC|Architecture and Osborn merge
The combined firm has offices in California, Colorado, and Washington, and offers a wide range of services, from landscape architecture and graphic design to architecture and interior design.
| Oct 1, 2014
Philip Johnson's iconic Crystal Cathedral to be modernized, made 'intrinsically Catholic'
Johnson Fain and Rios Clementi Hale Studios have been commissioned by the Roman Catholic Diocese of Orange to upgrade the all-glass church in Garden Grove, Calif. The church acquired the property in 2012.
| Oct 1, 2014
4 trends shaping the future of data centers
As a designer of mission critical facilities, I’ve learned that it’s really difficult to build data centers to keep pace with technology, yet that’s a reality we face along with our clients, writes Gensler's Jackson Metcalf.
| Oct 1, 2014
EYP, WHR Architects merge, strengthening presence in education, healthcare, energy sectors
The merger unites 530 professionals to better address some of the most critical issues facing our nation, namely education, healthcare, and energy.
| Sep 30, 2014
The Big Room concept: Using Building Team collocation to ensure project success
Implementing collocation via the Big Room concept will remove silos, ensure a cadence for daily communication, promote collaboration, and elevate your chances for success, write CBRE Healthcare's Stephen Powell and Magnus Nilsson.
| Sep 30, 2014
USGBC, Bank of America name recipients of 2014 Affordable Green Neighborhoods Grant Program
Eleven projects have been selected for the 2014 Affordable Green Neighborhoods grant program. Each will receive $31,000 and an educational package to support their pursuit of LEED for Neighborhood Development certification.
Sponsored | | Sep 30, 2014
What are you doing to win business and improve morale?? VDC Director Kris Lengieza shares ways to do both
Bluebeam's Sasha Reed sits down with Kris Lengieza, Director of Virtual Design and Construction for Stiles Corporation, to learn how he approaches change management. SPONSORED CONTENT
