| TOP 30 DATA CENTER ARCHITECTURE FIRMS | ||
| Rank | Firm | 2015 Revenue |
| 1 | Gensler | $34,240,000 |
| 2 | Corgan | $32,400,000 |
| 3 | HDR | $15,740,000 |
| 4 | Page | $14,100,000 |
| 5 | CallisonRTKL | $6,102,000 |
| 6 | RS&H | $5,400,000 |
| 7 | Clark Nexsen | $3,105,999 |
| 8 | HOK | $2,535,000 |
| 9 | DLR Group | $1,600,000 |
| 10 | Stantec | $1,575,034 |
| 11 | DGA | $1,411,255 |
| 12 | Schrader Group Architecture | $1,103,544 |
| 13 | Little | $998,100 |
| 14 | Wold Architects and Engineers | $950,000 |
| 15 | Becker Morgan Group | $684,369 |
| 16 | Environetics | $667,731 |
| 17 | SMMA | Symmes Maini & McKee Associates | $610,175 |
| 18 | Perkins Eastman | $487,500 |
| 19 | Nelson Worldwide Holdings | $409,156 |
| 20 | Ware Malcomb | $377,168 |
| 21 | GRW | $368,693 |
| 22 | CTA Architects Engineers | $358,478 |
| 23 | Schenkel & Shultz | $350,384 |
| 24 | BWBR | $300,247 |
| 25 | GFF | $274,577 |
| 26 | RSP Architects | $219,000 |
| 27 | Barge Waggoner Sumner & Cannon | $200,000 |
| 28 | JRS Architect | $175,000 |
| 29 | Kirksey Architecture | $168,436 |
| 30 | OZ Architecture | $105,000 |
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