| 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
Designers | Oct 28, 2015
San Antonio launches river barge design competition
Winning concepts will incorporate innovative new materials while remaining buildable and economically feasible.
Architects | Oct 27, 2015
Top 10 tile trends for 2016
Supersized tile and 3D walls are among the trending tile design themes seen at Cersaie, an exhibition of ceramic tile and bathroom furnishings held in Bologna, Italy in October.
Architects | Oct 20, 2015
Four building material innovations from the Chicago Architecture Biennial
From lightweight wooden pallets to the largest lengths of CLT-slabs that can be shipped across North America
Office Buildings | Oct 5, 2015
Renderings revealed for Apple's second 'spaceship': a curvy, lush office complex in Sunnyvale
The project has been dubbed as another “spaceship,” referencing the nickname for the loop-shaped Apple Campus under construction in Cupertino.
Airports | Sep 30, 2015
Takeoff! 5 ways high-flyin' airports are designing for rapid growth
Nimble designs, and technology that humanizes the passenger experience, are letting airports concentrate on providing service and generating revenue.
Contractors | Sep 30, 2015
FMI: Construction in place on track for sustained growth through 2016
FMI’s latest report singles out manufacturing, lodging, and office sectors as the drivers of nonresidential building activity and investment.
![What went wrong? Diagnosing building envelope distress [AIA course]](/sites/default/files/styles/list_big/public/Screen%20shot%202015-09-29%20at%209.46.33%20AM.png?itok=QDq8CQJv "What went wrong? Diagnosing building envelope distress [AIA course]")
Reconstruction & Renovation | Sep 29, 2015
What went wrong? Diagnosing building envelope distress [AIA course]
With so many diverse components contributing to building envelope assemblies, it can be challenging to determine which of these myriad elements was the likely cause of a failure.
Modular Building | Sep 23, 2015
SOM and DOE unveil 3D-printed, off-the-grid building
The Additive Manufacturing Integrated Energy (AMIE) building features a high-performance shell with a photovoltaic roof and built-in natural gas generator.
Sports and Recreational Facilities | Sep 21, 2015
Tokyo Olympic Stadium saga ends for Zaha Hadid
After resubmitting a bid, the firm will not design the main venue for the 2020 Olympics after all.
University Buildings | Sep 21, 2015
6 lessons in campus planning
For campus planning, focus typically falls on repairing the bricks and mortar without consideration of program priorities. Gensler's Pamela Delphenich offers helpful tips and advice.
