| TOP 60 GREEN BUILDING ENGINEERING FIRMS | ||
| Rank | Firm | 2015 Revenue |
| 1 | Jacobs | $203,161,333 |
| 2 | AECOM | $200,900,000 |
| 3 | Arup | $168,783,060 |
| 4 | Thornton Tomasetti | $67,382,221 |
| 5 | Syska Hennessy Group | $32,420,857 |
| 6 | Burns & McDonnell | $24,341,832 |
| 7 | Vanderweil Engineers | $23,508,800 |
| 8 | Smith Seckman Reid | $20,189,000 |
| 9 | DeSimone Consulting Engineers | $19,799,641 |
| 10 | Dewberry | $19,159,460 |
| 11 | Jensen Hughes | $17,500,000 |
| 12 | STV | $13,549,152 |
| 13 | Hankins and Anderson | $12,643,747 |
| 14 | Affiliated Engineers | $11,045,709 |
| 15 | KJWW / TTG | $10,750,000 |
| 16 | Walter P Moore | $10,727,343 |
| 17 | Bala Consulting Engineers | $10,300,000 |
| 18 | RMF Engineering | $9,218,000 |
| 19 | Interface Engineering | $7,325,183 |
| 20 | TLC Engineering for Architecture | $7,178,353 |
| 21 | Henderson Engineers | $7,020,123 |
| 22 | Newcomb & Boyd | $6,793,882 |
| 23 | Spectrum Engineers | $6,701,583 |
| 24 | M/E Engineering | $5,157,190 |
| 25 | Benham Design | $5,101,280 |
| 26 | I. C. Thomasson Associates | $5,000,000 |
| 27 | Hixson Architecture, Engineering, Interiors | $5,000,000 |
| 28 | Bridgers & Paxton Consulting Engineers | $4,737,841 |
| 29 | Magnusson Klemencic Associates | $4,364,152 |
| 30 | Glumac | $4,056,084 |
| 31 | KCI Technologies | $4,000,000 |
| 32 | Heapy Engineering | $3,800,000 |
| 33 | Wendel | $3,735,968 |
| 34 | Ghafari Associates | $3,300,000 |
| 35 | Rist-Frost-Shumway Engineering | $2,500,000 |
| 36 | Ross & Baruzzini | $2,500,000 |
| 37 | JQ Engineering | $2,481,900 |
| 38 | Sherlock, Smith & Adams | $2,426,000 |
| 39 | dbHMS | $2,304,000 |
| 40 | OLA Consulting Engineers | $2,250,000 |
| 41 | GHT Limited | $1,800,000 |
| 42 | P2S Engineering | $1,321,450 |
| 43 | Architectural Engineers | $1,143,662 |
| 44 | Core States Group | $1,099,996 |
| 45 | KZF Design | $948,362 |
| 46 | RDK Engineers | $873,482 |
| 47 | Walker Parking Consultants | $750,000 |
| 48 | Luckett & Farley | $725,800 |
| 49 | KLH Engineers | $700,000 |
| 50 | G & W Engineering Corp. | $600,154 |
| 51 | William Tao & Associates | $478,685 |
| 52 | H.F. Lenz Company | $352,640 |
| 53 | Dunham Associates | $250,000 |
| 54 | Pedco E & A Services | $195,000 |
| 55 | Cardno Haynes Whaley | $117,366 |
| 56 | Davis, Bowen & Friedel | $107,843 |
| 57 | Wick Fisher White | $105,000 |
| 58 | Highland Associates | $100,000 |
| 59 | ThermalTech Engineering | $80,000 |
| 60 | SSOE Group | $60,876 |
| 61 | Primera Engineers | $46,234 |
| 62 | Baird, Hampton & Brown | $6,383 |
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