| 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
| Nov 13, 2012
Soladigm announces new glass product, changes company name to View, Inc.
Glass is installed and operating at W San Francisco adjacent to the 2012 Greenbuild show
| Nov 13, 2012
Sto Corp. announces appointment of new CMO
Bottema will be responsible for all corporate marketing, product management and sales activities.
| Nov 13, 2012
2012 LEED for Homes Award recipients announced
USGBC recognizes excellence in the green residential building community at its Greenbuild Conference & Expo in San Francisco
| Nov 12, 2012
PCI Skanska celebrates 40-year anniversary
Since its creation, PCI Skanska has provided EPC services to clients for more than 40 years.
| Nov 12, 2012
AISC launches 'Night School' online educational program
The program's weekly webinar sessions offer structural engineers a great opportunity to enhance their professional development online while accommodating their schedules.
| Nov 11, 2012
Under40 Leadership Summit draws 71 young leaders to Chicago
More than 70 young—that is, under age 40—architects, engineers, and construction professionals descended on Chicago in early October with one thought in mind: to learn how to “create with clarity.”
| Nov 11, 2012
AIA: Building Envelope
Preventing and treating failure in glazed curtain wall systems. Earn 1.0 AIA/CES learning units by studying this article and successfully completing the online exam.
| Nov 11, 2012
Greenbuild 2012 Report: Hospitality
Hotel boom signals good news for greener lodging facilities
| Nov 11, 2012
Greenbuild 2012 Report: Government & Military
Public sector remains a bastion of sustainability
| Nov 11, 2012
Greenbuild 2012 Report: Healthcare
Green medical facilities extend beyond hospital walls
