| 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 27, 2013
Small but mighty: Berkeley public library’s net-zero gem
The Building Team for Berkeley, Calif.’s new 9,500-sf West Branch library aims to achieve net-zero—and possibly net-positive—energy performance with the help of clever passive design techniques.
| Mar 27, 2013
RSMeans cost comparisons: college labs, classrooms, residence halls, student unions
Construction market analysts from RSMeans offer construction costs per square foot for four building types across 25 metro markets.
| Mar 26, 2013
Will Google Glass revolutionize the construction process?
An Australian architect is exploring the benefits of augmented reality in the design and construction process.
| Mar 24, 2013
World's tallest data center opens in New York
Sabey Data Center Properties last week celebrated the completion of the first phase of an adaptive reuse project that will transform the 32-story Verizon Building in Manhattan into a data center facility. When the project is completed, it will be the world's tallest data center.
| Mar 22, 2013
8 cool cultural projects in the works
A soaring opera center in Hong Kong and a multi-tower music center in Calgary are among the latest cultural projects.
| Mar 22, 2013
Earn $500 as a DOE proposal reviewer
The DOE'S Building Technologies Office this morning put out a call to the AEC industry for expert reviewers for its new energy-efficiency initiative for small commercial buildings, which make up more than 90% of the commercial building stock.
| Mar 21, 2013
Best Firms to Work For: Enermodal Engineering is green to the core
At Enermodal Engineering, there’s only one kind of building—a sustainable one.
| Mar 20, 2013
Architecture Billings Index up again in February
The American Institute of Architects reported the February ABI score was 54.9, up slightly from a mark of 54.2 in January. This score reflects a strong increase in demand for design services.
