| 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
| Nov 25, 2014
Emerging design and operation strategies for the ambulatory team in transition
As healthcare systems shift their care models to be more responsive to patient-centered care, ambulatory care teams need to be positioned to operate efficiently in their everyday work environments, write CannonDesign Health Practice leaders Tonia Burnette and Mike Pukszta.
| Nov 24, 2014
Midsize construction firms see a brighter business horizon
Uncertainty about government spending clouds an otherwise positive economic outlook among 59 middle market construction firms polled recently by GE Capital.
| Nov 24, 2014
Adrian Smith + Gordon Gill-designed crystalline tower breaks ground in southwestern China
Fitted with an LED façade, the 468-meter Greenland Tower Chengdu will act as a light sculpture for the city of Chengdu.
| Nov 21, 2014
Rental apartment construction soars to 27-year high: WSJ report
The multifamily sector is now outpacing the peak construction rate in the previous housing cycle, in 2006, according to the WSJ.
| Nov 21, 2014
Nelson adds to its stable with EHS Design acquisition
This represents Nelson’s fifth merger or acquisition in 2014, during which the firm’s net fee revenue has increased by 60% to $65 million.
| Nov 21, 2014
Nonresidential Construction Index rises in fourth quarter
There are a number of reasons for optimism among respondents of FMI's quarterly Nonresidential Construction Index survey, including healthier backlogs and low inflation.
| Nov 21, 2014
NCARB: Number of architects in U.S. grows 1.6% in 2014, surpasses 107,500
The architecture profession continues to grow along with a gradually recovering economy, based on the results of the 2014 Survey of Architectural Registration Boards, conducted by the National Council of Architectural Registration Boards.
| Nov 20, 2014
Lean Led Design: How Building Teams can cut costs, reduce waste in healthcare construction projects
Healthcare organizations are under extreme pressure to reduce costs, writes CBRE Healthcare's Lora Schwartz. Tools like Lean Led Design are helping them cope.
| Nov 19, 2014
The evolution of airport design and construction [infographic]
Safety, consumer demand, and the new economics of flight are three of the major factors shaping how airlines and airport officials are approaching the need for upgrades and renovations, writes Skanska USA's MacAdam Glinn.
| Nov 19, 2014
Construction unemployment hits eight-year low, some states struggle to find qualified labor
The construction industry, whose workforce was decimated during the last recession, is slowly getting back on its feet. However, in certain markets—especially those where oil drilling and production have been prospering—construction workers can still be scarce.
