| TOP 130 GREEN BUILDING ARCHITECTURE FIRMS | ||
| Rank | Firm | 2015 Revenue |
| 1 | Gensler | $768,470,000 |
| 2 | Stantec | $331,794,291 |
| 3 | HOK | $280,570,000 |
| 4 | Perkins+Will | $195,460,000 |
| 5 | Skidmore, Owings & Merrill | $175,140,374 |
| 6 | HKS | $163,696,602 |
| 7 | EYP | $137,479,466 |
| 8 | SmithGroupJJR | $122,636,361 |
| 9 | CallisonRTKL | $104,462,061 |
| 10 | CannonDesign | $69,400,000 |
| 11 | Page | $67,070,000 |
| 12 | DLR Group | $66,000,000 |
| 13 | HGA | $64,200,000 |
| 14 | NBBJ | $60,000,000 |
| 15 | LPA | $59,327,793 |
| 16 | ZGF Architects | $58,779,144 |
| 17 | Corgan | $53,807,300 |
| 18 | NORR | $51,379,572 |
| 19 | Perkins Eastman | $44,892,203 |
| 20 | HDR | $39,420,000 |
| 21 | Ballinger | $33,620,000 |
| 22 | Solomon Cordwell Buenz | $31,031,472 |
| 23 | LMN Architects | $28,885,000 |
| 24 | Westlake Reed Leskosky | $28,147,279 |
| 25 | Moody Nolan | $28,076,100 |
| 26 | WDG | $27,606,000 |
| 27 | Goettsch Partners | $26,800,000 |
| 28 | CO Architects | $26,579,750 |
| 29 | Beyer Blinder Belle Architects & Planners | $25,301,012 |
| 30 | Adrian Smith + Gordon Gill Architecture | $24,040,692 |
| 31 | Payette | $23,675,318 |
| 32 | Clark Nexsen | $22,780,000 |
| 33 | Kirksey Architecture | $20,858,620 |
| 34 | EwingCole | $19,737,000 |
| 35 | Flad Architects | $18,900,000 |
| 36 | RS&H | $18,900,000 |
| 37 | NAC Architecture | $18,819,462 |
| 38 | Grimm + Parker Architects | $18,368,510 |
| 39 | Cooper Carry | $18,138,637 |
| 40 | Mithun | $17,150,100 |
| 41 | GFF | $16,748,380 |
| 42 | S/L/A/M Collaborative, The | $16,621,000 |
| 43 | Morris Architects | $14,246,000 |
| 44 | Rule Joy Trammell + Rubio | $13,390,940 |
| 45 | Robert A.M. Stern Architects | $13,220,000 |
| 46 | Hord Coplan Macht | $13,140,000 |
| 47 | RNL Design | $12,966,700 |
| 48 | Legat Architects | $12,750,000 |
| 49 | Wilson Architects | $11,700,000 |
| 50 | FXFOWLE | $11,664,000 |
| 51 | HNTB Corporation | $11,604,663 |
| 52 | Studios Architecture | $11,560,080 |
| 53 | Paulus, Sokolowski and Sartor | $11,500,000 |
| 54 | GGLO | $11,265,030 |
| 55 | Moseley Architects | $11,181,541 |
| 56 | Weber Thompson | $10,590,755 |
| 57 | Integrus Architecture | $10,587,307 |
| 58 | Davis Brody Bond | $10,217,131 |
| 59 | VOA Associates | $9,700,000 |
| 60 | Little | $9,500,000 |
| 61 | BWBR | $9,358,712 |
| 62 | P+R Architects | $9,000,000 |
| 63 | GWWO | $8,860,726 |
| 64 | tvsdesign | $8,788,451 |
| 65 | Fanning/Howey Associates | $8,477,999 |
| 66 | Cambridge Seven Associates | $8,030,000 |
| 67 | BRPH | $8,018,229 |
| 68 | Albert Kahn Associates | $7,500,000 |
| 69 | SMMA | Symmes Maini & McKee Associates | $7,414,847 |
| 70 | Architects Hawaii Ltd. | $7,353,000 |
| 71 | Gresham, Smith and Partners | $7,280,000 |
| 72 | Diamond Schmitt Architects | $6,762,282 |
| 73 | John Ciardullo Associates | $6,491,959 |
| 74 | Margulies Perruzzi Architects | $6,136,117 |
| 75 | STG Design | $6,000,000 |
| 76 | Lord Aeck Sargent | $5,970,000 |
| 77 | DGA | $5,955,042 |
| 78 | FitzGerald Associates Architects | $5,752,000 |
| 79 | Array Architects | $5,380,120 |
| 80 | GreenbergFarrow | $5,200,000 |
| 81 | KSQ Design | $5,062,571 |
| 82 | DLA+ Architecture & Interior Design | $4,970,798 |
| 83 | Urbahn Architects | $4,700,000 |
| 84 | Smallwood, Reynolds, Stewart, Stewart & Associates | $4,336,328 |
| 85 | Schenkel & Shultz | $4,242,575 |
| 86 | Emersion Design | $4,130,937 |
| 87 | SB Architects | $4,012,386 |
| 88 | HMC Architects | $3,962,696 |
| 89 | Wold Architects and Engineers | $3,700,000 |
| 90 | GBBN Architects | $3,500,000 |
| 91 | LK Architecture | $3,500,000 |
| 92 | Heery International | $3,383,741 |
| 93 | Hastings+Chivetta Architects | $3,343,438 |
| 94 | Cuningham Group Architecture | $3,255,279 |
| 95 | Beck Group, The | $3,034,395 |
| 96 | Hnedak Bobo Group | $3,032,800 |
| 97 | ACAI Associates | $3,000,000 |
| 98 | Shepley Bulfinch | $2,964,124 |
| 99 | PBK | $2,895,000 |
| 100 | Ware Malcomb | $2,741,807 |
| 101 | BBS Architects and Engineers | $2,460,000 |
| 102 | Tsoi/Kobus & Associates | $2,204,408 |
| 103 | LS3P | $2,090,219 |
| 104 | FKP Architects | $2,057,000 |
| 105 | Bergmann Associates | $1,870,000 |
| 106 | MV+A Architects | $1,776,394 |
| 107 | Marshall Craft Associates | $1,682,543 |
| 108 | Eppstein Uhen Architects | $1,598,964 |
| 109 | Barge Waggoner Sumner & Cannon | $1,550,000 |
| 110 | Environetics | $1,400,874 |
| 111 | Montroy Andersen DeMarco | $1,400,000 |
| 112 | Schrader Group Architecture | $1,213,085 |
| 113 | Harley Ellis Devereaux | $1,200,000 |
| 114 | Ashley McGraw Architects | $1,141,985 |
| 115 | Rosser International | $1,023,000 |
| 116 | BLDD Architects | $1,000,000 |
| 117 | Zyscovich Architects | $993,333 |
| 118 | Harvard Jolly | $969,910 |
| 119 | ATA Beilharz Architects | $821,893 |
| 120 | Francis Cauffman | $802,690 |
| 121 | GSB | $754,280 |
| 122 | DAG Architects | $750,000 |
| 123 | Large Architecture | $550,000 |
| 124 | Baskervill | $460,453 |
| 125 | MBH Architects | $450,809 |
| 126 | Becker Morgan Group | $403,112 |
| 127 | Jonathan Nehmer + Associates | $381,157 |
| 128 | BBGM | $381,000 |
| 129 | ai Design Group | $337,896 |
| 130 | RSP Architects | $307,600 |
| 131 | BKSK Architects | $279,439 |
| 132 | WD Partners | $255,000 |
| 133 | FRCH Design Worldwide | $180,000 |
| 134 | Vocon | $178,247 |
| 135 | GRW | $142,851 |
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