Corgan, Jacobs, and Whiting-Turner Contracting Company top BD+C's rankings of the nation's largest data center facilities sector architecture, engineering, and construction firms, as reported in the 2020 Giants 400 Report.
| Top 25 Data Center Sector Architecture and AE Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | Corgan | $61,478,818 |
| 2 | HDR | $34,686,206 |
| 3 | Sheehan Nagle Hartray Architects (SNHA) | $26,365,000 |
| 4 | Page | $21,250,000 |
| 5 | Gensler | $15,057,455 |
| 6 | HED | $15,000,000 |
| 7 | EXP | $7,874,986 |
| 8 | Interior Architects | $4,134,161 |
| 9 | HKS | $3,801,750 |
| 10 | Stantec | $3,049,945 |
| 11 | DGA | $2,078,452 |
| 12 | Barge Design Solutions | $2,036,000 |
| 13 | YGH Architecture | $1,369,332 |
| 14 | Eppstein Uhen Architects (EUA) | $1,260,000 |
| 15 | Whitman Requardt and Associates | $1,228,141 |
| 16 | CallisonRTKL | $719,044 |
| 17 | TreanorHL | $500,000 |
| 18 | Wendel | $446,576 |
| 19 | Line Scale Form Architects | $406,860 |
| 20 | HGA | $378,059 |
| 21 | Little Diversified Architectural Consulting | $264,020 |
| 22 | RDG Planning & Design | $251,838 |
| 23 | RSP Architects | $118,000 |
| 24 | Perkins and Will | $86,520 |
| 25 | Ratio Architects | $84,910 |
| 26 | Clark Nexsen | $57,000 |
| 27 | HOK | $26,000 |
| 28 | DLZ Corporation | $19,000 |
| 29 | Design Collaborative | $17,410 |
| 30 | GFF | $4,884 |
| Top 55 Data Center Sector Engineering and EA Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | Jacobs | $142,376,000 |
| 2 | ESD | $51,838,775 |
| 3 | HPE Data Center Technologies Services | $48,100,000 |
| 4 | Vanderweil Engineers | $46,475,100 |
| 5 | kW Mission Critical Engineering | $40,900,000 |
| 6 | Burns & McDonnell | $29,488,993 |
| 7 | AECOM | $21,400,000 |
| 8 | Syska Hennessy Group | $17,789,810 |
| 9 | Kimley-Horn | $15,652,234 |
| 10 | Salas O'Brien | $12,634,849 |
| 11 | Morrison Hershfield | $12,010,459 |
| 12 | TAS Energy | $11,365,173 |
| 13 | EYP Mission Critical Facilities | $11,328,274 |
| 14 | Highland Associates | $9,300,000 |
| 15 | Affiliated Engineers | $4,193,000 |
| 16 | H.F. Lenz | $4,147,000 |
| 17 | Mazzetti | $3,071,261 |
| 18 | Arup | $3,025,866 |
| 19 | Paradigm Structural Engineers | $3,016,448 |
| 20 | Black & Veatch | $2,560,000 |
| 21 | WSP | $2,557,845 |
| 22 | Wiley|Wilson | $2,468,000 |
| 23 | Wick Fisher White | $1,925,000 |
| 24 | NV5 Global | $1,759,000 |
| 25 | RMH Group, The | $1,723,218 |
| 26 | Bala Consulting Engineers | $1,652,000 |
| 27 | Newcomb & Boyd | $1,605,598 |
| 28 | Jensen Hughes | $1,575,003 |
| 29 | Bridgers & Paxton Consulting Engineers | $1,011,444 |
| 30 | Ross & Baruzzini | $1,000,000 |
| 31 | Cushing Terrell (formerly CTA Architects Engineers) | $931,671 |
| 32 | KPFF Consulting Engineers | $925,000 |
| 33 | Thornton Tomasetti | $807,721 |
| 34 | Dunham Associates | $750,000 |
| 35 | HEAPY | $749,712 |
| 36 | Jaros, Baum & Bolles | $656,434 |
| 37 | Osborn Engineering | $650,000 |
| 38 | IMEG Corp. | $552,497 |
| 39 | RTM Engineering Consultants | $537,215 |
| 40 | JQ Engineering | $464,723 |
| 41 | SSOE Group | $412,951 |
| 42 | Wallace Engineering | $380,000 |
| 43 | Pedco E & A Services | $379,000 |
| 44 | Tec Inc. Engineering & Design | $339,337 |
| 45 | Martin/Martin | $241,867 |
| 46 | Apogee Consulting Group | $200,000 |
| 47 | Spectrum Engineers | $137,529 |
| 48 | SSC Engineering | $112,560 |
| 49 | Walter P Moore | $84,639 |
| 50 | CRB | $56,340 |
| 51 | OLA Consulting Engineers | $50,000 |
| 52 | Davis, Bowen & Friedel | $33,297 |
| 53 | Bernhard | $27,000 |
| 54 | Karpinski Engineering | $8,000 |
| 55 | Becker Morgan Group | $2,658 |
| Top 40 Data Center Sector Contractors and CM Firms for 2020 | ||
| FIRM | 2019 REVENUE | |
| 1 | Whiting-Turner Contracting Company, The | $3,351,055,130 |
| 2 | Holder Construction | $3,290,000,000 |
| 3 | Turner Construction Company | $1,697,335,682 |
| 4 | DPR Construction | $1,521,739,000 |
| 5 | Fortis Construction | $1,024,631,856 |
| 6 | HITT Contracting | $823,295,424 |
| 7 | JE Dunn Construction | $636,079,164 |
| 8 | STO Building Group | $633,200,000 |
| 9 | Mortenson | $408,790,000 |
| 10 | AECOM | $349,200,000 |
| 11 | Clayco | $347,000,000 |
| 12 | Hensel Phelps | $335,198,084 |
| 13 | Clune Construction | $269,951,458 |
| 14 | Walbridge | $248,644,165 |
| 15 | Jacobs | $189,901,255 |
| 16 | Gilbane Building Company | $150,048,000 |
| 17 | Balfour Beatty US | $147,393,312 |
| 18 | Rogers-O'Brien Construction | $104,128,098 |
| 19 | J.T. Magen and Company | $103,720,376 |
| 20 | Gray Construction | $93,369,428 |
| 21 | Brasfield & Gorrie | $82,341,437 |
| 22 | Sundt Construction | $77,569,890 |
| 23 | Hoffman Construction | $49,018,415 |
| 24 | Skanska USA | $48,031,404 |
| 25 | BlueScope Construction | $37,755,530 |
| 26 | EXP | $32,413,173 |
| 27 | Walsh Group, The | $32,246,912 |
| 28 | Pepper Construction | $31,270,520 |
| 29 | Hathaway Dinwiddie Construction | $25,000,000 |
| 30 | Nabholz Corporation | $21,470,366 |
| 31 | T5 Construction Services | $17,783,437 |
| 32 | Suffolk Construction | $12,298,553 |
| 33 | Cumming | $9,028,350 |
| 34 | DeAngelis Diamond | $6,342,377 |
| 35 | Executive Construction | $4,000,000 |
| 36 | Ryan Companies US | $3,597,016 |
| 37 | Hill International | $889,901 |
| 38 | Burns & McDonnell | $868,189 |
| 39 | Robins & Morton | $268,875 |
| 40 | JLL | $140,393 |
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