Demand for data centers is “exploding,” says Raj Gupta, PE, LEED AP, CEO of Environmental Systems Design and emeritus member of BD+C’s Editorial Board. According to Gartner Inc., in 2010, 2% of data centers contained 52% of total data center floor space and accounted for 63% of data center hardware spending.
In 2015, 2% of data centers will contain 60% of data center floor space and account for 71% of data center hardware spending.
“Traditional in-house enterprise data centers are under attack,” says Jon Hardcastle, Gartner’s research director. Virtualization technologies are helping companies to utilize their infrastructure more effectively, and data centers are getting more efficient. The move to consolidated third-party data centers is trimming the total number of midsize facilities, while large data centers are benefitting from the rise of cloud computing. +
TOP 25 DATA CENTER SECTOR ARCHITECTURE FIRMS
| Rank | Company | 2011 Data Center Revenue ($) |
| 1 | Corgan Associates | 22,854,000 |
| 2 | Gensler | 20,100,000 |
| 3 | HDR Architecture | 16,000,000 |
| 4 | LEO A DALY | 14,753,871 |
| 5 | PageSoutherlandPage | 12,890,000 |
| 6 | Integrated Design Group | 11,436,000 |
| 7 | Reynolds, Smith and Hills | 4,200,000 |
| 8 | RTKL Associates | 3,840,295 |
| 9 | CTA Architects Engineers | 3,787,800 |
| 10 | EwingCole | 3,000,000 |
| 11 | SMMA|Symmes Maini & McKee Associates | 2,123,426 |
| 12 | HLW International | 1,900,000 |
| 13 | Fentress Architects | 1,456,103 |
| 14 | Kirksey Architecture | 1,379,269 |
| 15 | PGAL | 1,096,000 |
| 16 | Heery International | 808,000 |
| 17 | Fishbeck, Thompson, Carr & Huber | 600,000 |
| 18 | Harley Ellis Devereaux | 600,000 |
| 19 | IBI Group | 563,474 |
| 20 | H+L Architecture | 537,059 |
| 21 | Ware Malcomb | 515,000 |
| 22 | Solomon Cordwell Buenz | 500,000 |
| 23 | HOK | 426,798 |
| 24 | Rule Joy Trammell + Rubio | 350,000 |
| 25 | Gresham, Smith and Partners | 234,347 |
TOP 25 DATA CENTER SECTOR ENGINEERING FIRMS
| Rank | Company | 2011 Data Center Revenue ($) |
| 1 | Fluor Corp. | 212,484,600 |
| 2 | Jacobs | 119,930,000 |
| 3 | Syska Hennessy Group | 43,577,806 |
| 4 | URS Corp. | 34,475,000 |
| 5 | Merrick & Co. | 31,500,000 |
| 6 | AKF Group | 10,500,000 |
| 7 | Atkins North America | 10,035,923 |
| 8 | Parsons Brinckerhoff | 7,400,000 |
| 9 | Eaton Energy Solutions | 6,169,598 |
| 10 | KPFF Consulting Engineers | 5,000,000 |
| 11 | H.F. Lenz Co. | 4,741,000 |
| 12 | Burns & McDonnell | 4,500,000 |
| 13 | Stantec | 4,230,000 |
| 14 | Glumac | 4,196,563 |
| 15 | Science Applications International Corp. | 3,950,000 |
| 16 | Zak Companies | 3,043,228 |
| 17 | Michael Baker Jr., Inc | 2,970,000 |
| 18 | R.G. Vanderweil Engineers | 2,830,900 |
| 19 | RMF Engineering | 2,500,000 |
| 20 | ESD|Environmental Systems Design | 2,450,000 |
| 21 | H&A Architects & Engineers | 2,300,000 |
| 22 | RDK Engineers | 2,245,000 |
| 23 | Guernsey | 2,041,552 |
| 24 | Middough | 1,750,000 |
| 25 | M+W U.S. | 1,654,867 |
TOP 25 DATA CENTER SECTOR CONSTRUCTION FIRMS
| Rank | Company | 2011 Data Center Revenue ($) |
| 1 | Holder Construction | 1,293,000,000 |
| 2 | DPR Construction | 666,292,020 |
| 3 | Turner Corporation, The | 434,435,518 |
| 4 | Whiting-Turner Contracting, The | 393,539,085 |
| 5 | Skanska USA | 369,889,632 |
| 6 | Mortenson Construction | 304,900,000 |
| 7 | Balfour Beatty US | 277,879,080 |
| 8 | Structure Tone | 259,250,000 |
| 9 | Jacobs | 119,930,000 |
| 10 | Gilbane Building | 104,166,000 |
| 11 | JE Dunn Construction | 89,426,706 |
| 12 | Weitz Co., The | 71,442,860 |
| 13 | James G. Davis Construction | 60,000,000 |
| 14 | Hensel Phelps Construction | 50,360,000 |
| 15 | Messer Construction | 49,404,845 |
| 16 | Hoffman Corp. | 46,541,098 |
| 17 | Manhattan Construction Group | 44,196,000 |
| 18 | Brasfield & Gorrie | 34,612,782 |
| 19 | URS Corp. | 34,475,000 |
| 20 | Sundt Construction | 28,801,944 |
| 21 | Kitchell | 24,310,000 |
| 22 | Ryan Companies US | 23,664,942 |
| 23 | Harkins Builders | 21,000,000 |
| 24 | McShane Companies, The | 20,000,000 |
| 25 | Yates Companies., The | 20,000,000 |