| Rank | Company | 2012 Data Center Revenue ($) |
| 1 | Fluor | $235,678,900 |
| 2 | Syska Hennessy Group | $36,735,434 |
| 3 | Jacobs Engineering Group | $36,700,000 |
| 4 | H&A Architects & Engineers | $35,427,599 |
| 5 | URS Corp. | $26,229,049 |
| 6 | Environmental Systems Design | $10,575,892 |
| 7 | Parsons Brinckerhoff | $10,300,000 |
| 8 | H.F. Lenz | $7,357,000 |
| 9 | Science Applications International Corp. | $6,760,598 |
| 10 | AKF Group | $6,602,000 |
| 11 | Clark Nexsen | $5,166,474 |
| 12 | Arup | $4,562,202 |
| 13 | KPFF Consulting Engineers | $4,000,000 |
| 14 | Michael Baker Jr. | $3,840,000 |
| 15 | Vanderweil Engineers | $3,761,500 |
| 16 | Bala Consulting Engineers | $3,630,000 |
| 17 | Glumac | $3,142,000 |
| 18 | Zak Companies | $2,648,017 |
| 19 | RMF Engineering Design | $2,500,000 |
| 20 | Guernsey | $2,450,838 |
| 21 | GHT Limited | $2,400,000 |
| 22 | Degenkolb Engineers | $2,156,452 |
| 23 | Ross & Baruzzini | $2,120,725 |
| 24 | Sparling | $1,930,962 |
| 25 | Wick Fisher White | $1,706,660 |
| 26 | Thornton Tomasetti | $1,517,448 |
| 27 | CCRD Partners | $1,400,000 |
| 28 | Bridgers & Paxton Consulting Engineers | $1,349,511 |
| 29 | RDK Engineers | $1,116,000 |
| 30 | ThermalTech Engineering | $1,000,000 |
| 31 | Affiliated Engineers | $971,000 |
| 32 | Henderson Engineers | $944,577 |
| 33 | Joseph R. Loring & Associates | $915,000 |
| 34 | Haynes Whaley Associates | $698,598 |
| 35 | CJL Engineering | $649,643 |
| 36 | TLC Engineering for Architecture | $641,335 |
| 37 | Mazzetti | $636,626 |
| 38 | WSP USA | $556,800 |
| 39 | Aon Fire Protection Engineering | $500,000 |
| 39 | Dewberry | $500,000 |
| 39 | Dunham Associates | $500,000 |
| 39 | KCI Technologies | $500,000 |
| 39 | TTG | $500,000 |
| 44 | M-E Engineers | $300,000 |
| 44 | Paulus, Sokolowski and Sartor | $300,000 |
| 46 | Interface Engineering | $252,504 |
| 47 | Barge, Waggoner, Sumner and Cannon | $200,000 |
| 47 | OLA Consulting Engineers | $200,000 |
| 47 | Rolf Jensen & Associates | $200,000 |
| 50 | Karpinski Engineering | $177,164 |
| 51 | Apogee Consulting Group | $158,000 |
| 52 | Magnusson Klemencic Associates | $156,304 |
| 53 | Total Building Commissioning | $146,395 |
| 54 | SSOE Group | $123,314 |
| 55 | GRW | $121,135 |
| 56 | Newcomb & Boyd | $95,355 |
| 57 | Allen & Shariff | $65,000 |
| 58 | Brinjac Engineering | $58,971 |
| 59 | CTLGroup | $50,000 |
| 60 | Spectrum Engineers | $49,934 |
| 61 | Eaton Energy Solutions | $46,204 |
| 62 | P2S Engineering | $45,830 |
| 63 | Kamm Consulting | $29,084 |
Read the Data Center Giants article
Read BD+C's full Giants 300 Report
Related Stories
| Mar 18, 2014
How your AEC firm can win more healthcare projects
Cutthroat competition and the vagaries of the Affordable Healthcare Act are making capital planning a more daunting task than ever. Our experts provide inside advice on how AEC firms can secure more work from hospital systems.
| Mar 18, 2014
Charles Dalluge joins DLR Group as president, COO
CEO Griff Davenport announces addition of Dalluge to executive leadership team
| Mar 17, 2014
Rem Koolhaas explains China's plans for its 'ghost cities'
China's goal, according to Koolhaas, is to de-incentivize migration into already overcrowded cities.
| Mar 13, 2014
Do you really 'always turn right'?
The first visitor center we designed was the Ernest F. Coe Visitor Center for the Everglades National Park in 1993. I remember it well for a variety of reasons, not the least of which was the ongoing dialogue we had with our retail consultant. He insisted that the gift shop be located on the right as one exited the visitor center because people “always turn right.”
| Mar 13, 2014
Austria's tallest tower shimmers with striking 'folded façade' [slideshow]
The 58-story DC Tower 1 is the first of two high-rises designed by Dominique Perrault Architecture for Vienna's skyline.
| Mar 12, 2014
London grows up: 236 tall buildings to be added to skyline in coming decade, says think tank
The vast majority of high-rise projects in the works are residential towers, which could help tackle the city's housing crisis, according to a new report by New London Architecture.
| Mar 12, 2014
Final call for entries! BUILDINGChicago 2014 call for educational proposals
The Advisory Committee of the BUILDINGChicago/Greening the Heartland 2014 Conference is accepting proposals for presenters and topics through this Friday, March 14.
| Mar 12, 2014
14 new ideas for doors and door hardware
From a high-tech classroom lockdown system to an impact-resistant wide-stile door line, BD+C editors present a collection of door and door hardware innovations.
| Mar 12, 2014
New CannonDesign database allows users to track facility assets
The new software identifies critical failures of components and systems, code and ADA-compliance issues, and systematically justifies prudent expenditures.
| Mar 11, 2014
7 (more) awe-inspiring interior designs [slideshow]
The seven winners of the 41st Interior Design Competition and the 22nd Will Ching Design Competition include projects on four different continents.
