Gensler, Perkins and Will, HKS, and Perkins Eastman top the rankings of the nation's largest architecture firms for nonresidential and multifamily buildings work, as reported in Building Design+Construction's 2021 Giants 400 Report.
| Top 160 Architecture Firms for 2021 | ||
| FIRM | 2020 REVENUE | |
| 1 | Gensler | $1,322,095,908 |
| 2 | Perkins and Will | $595,684,000 |
| 3 | HKS | $430,053,922 |
| 4 | Perkins Eastman | $264,000,000 |
| 5 | ZGF Architects | $245,543,609 |
| 6 | NBBJ | $226,600,000 |
| 7 | Kohn Pedersen Fox | $219,700,000 |
| 8 | Corgan | $200,830,474 |
| 9 | Populous | $187,812,114 |
| 10 | Nelson Worldwide | $164,575,615 |
| 11 | Interior Architects | $148,993,506 |
| 12 | HMC Architects | $100,265,657 |
| 13 | HNTB | $92,797,749 |
| 14 | Cuningham | $92,184,730 |
| 15 | AO | $85,500,000 |
| 16 | Hord Coplan Macht | $83,038,518 |
| 17 | Elkus Manfredi Architects | $81,300,000 |
| 18 | LS3P Associates | $80,901,413 |
| 19 | KTGY | $76,572,229 |
| 20 | Solomon Cordwell Buenz | $76,022,735 |
| 21 | RSP Architects | $75,829,000 |
| 22 | WATG | $72,245,000 |
| 23 | Cooper Carry | $71,729,164 |
| 24 | Ennead Architects | $70,037,008 |
| 25 | CO Architects | $65,690,978 |
| 26 | DGA Planning | Architecture | Interiors | $64,944,373 |
| 27 | NAC Architecture | $62,020,112 |
| 28 | Moseley Architects | $61,665,157 |
| 29 | VLK Architects | $61,000,000 |
| 30 | McMillan Pazdan Smith | $60,059,565 |
| 31 | Payette | $58,948,584 |
| 32 | Quinn Evans | $55,351,585 |
| 33 | Diamond Schmitt Architects | $53,274,622 |
| 34 | Eppstein Uhen Architects | $52,320,000 |
| 35 | Ayers Saint Gross | $50,738,079 |
| 36 | Hart Howerton | $49,904,136 |
| 37 | Mithun | $48,614,595 |
| 38 | Moody Nolan | $48,453,116 |
| 39 | Shepley Bulfinch | $46,953,719 |
| 40 | Beck Architecture | $46,917,959 |
| 41 | Ratio Design | $46,880,134 |
| 42 | CBT | $45,920,252 |
| 43 | Handel Architects | $45,758,217 |
| 44 | Kirksey Architecture | $45,509,095 |
| 45 | TPG Architecture | $42,491,000 |
| 46 | LMN Architects | $41,389,289 |
| 47 | BHDP Architecture | $40,554,857 |
| 48 | Steinberg Hart | $40,054,866 |
| 49 | Fentress Architects | $39,000,000 |
| 50 | BWBR | $36,385,982 |
| 51 | Zyscovich | $36,203,569 |
| 52 | GFF | $35,887,334 |
| 53 | Macgregor Associates Architects | $35,345,461 |
| 54 | Niles Bolton Associates | $34,485,177 |
| 55 | TreanorHL | $32,955,197 |
| 56 | GBBN | $32,500,000 |
| 57 | Ted Moudis Associates | $32,500,000 |
| 58 | RRMM Architects | $31,980,000 |
| 59 | JCJ Architecture | $31,683,016 |
| 60 | FXCollaborative | $30,355,499 |
| 61 | Alliiance | $30,260,000 |
| 62 | HuntonBrady Architects | $29,694,474 |
| 63 | Vocon | $29,530,000 |
| 64 | Sasaki | $29,481,860 |
| 65 | FGM Architects | $29,184,874 |
| 66 | GGLO | $28,727,000 |
| 67 | Dattner Architects | $28,693,744 |
| 68 | AHL | $28,652,054 |
| 69 | MBH Architects | $28,362,000 |
| 70 | Grimm + Parker Architects | $27,110,421 |
| 71 | Rule Joy Trammell + Rubio | $26,282,410 |
| 72 | Goettsch Partners | $26,280,000 |
| 73 | WDG Architecture | $25,500,000 |
| 74 | Smallwood | $25,352,777 |
| 75 | Quattrocchi Kwok Architects | $25,326,715 |
| 76 | Steelman Partners | $24,500,000 |
| 77 | Array Architects | $24,406,334 |
| 78 | Carrier Johnson + Culture | $24,347,709 |
| 79 | FCA | $23,358,718 |
| 80 | Marmon Mok Architecture | $22,828,456 |
| 81 | Spiezle Architectural Group | $22,200,000 |
| 82 | Taylor Design | $22,140,000 |
| 83 | RDC-S111 | $22,072,220 |
| 84 | Dahlin Group Architecture Planning | $22,000,000 |
| 85 | HMFH Architects | $21,302,904 |
| 86 | GWWO Architects | $21,190,829 |
| 87 | KCCT | $20,721,487 |
| 88 | SchenkelShultz Architecture | $20,166,980 |
| 89 | Davis Brody Bond | $19,525,875 |
| 90 | Massa Multimedia Architecture | $18,853,278 |
| 91 | SLCE Architects, LLP | $18,464,500 |
| 92 | Plunkett Raysich Architects | $18,454,350 |
| 93 | JLG Architects | $18,398,722 |
| 94 | Cooper Robertson | $18,301,002 |
| 95 | Hanbury | $17,850,876 |
| 96 | LK Architecture | $17,800,000 |
| 97 | HBG Design | $17,575,000 |
| 98 | Champlin Architecture | $17,515,653 |
| 99 | Legat Architects | $17,367,000 |
| 100 | Orcutt | Winslow | $16,869,074 |
| 101 | BLDD Architects | $16,591,972 |
| 102 | Urbahn Architects | $16,562,030 |
| 103 | RBB Architects | $16,400,000 |
| 104 | JLL | $16,000,000 |
| 105 | M+A Architects | $15,334,483 |
| 106 | CetraRuddy Architecture | $15,071,120 |
| 107 | Fogarty Finger | $14,994,000 |
| 108 | Todd & Associates | $14,773,391 |
| 109 | PCA | $14,726,922 |
| 110 | Hill West Architects | $14,200,000 |
| 111 | Huntsman Architectural Group | $13,619,591 |
| 112 | CTA Architects | $13,230,477 |
| 113 | REES | $13,107,141 |
| 114 | Architecture, Incorporated | $13,000,000 |
| 115 | Weber Thompson | $12,841,018 |
| 116 | STR Partners | $11,824,282 |
| 117 | TRIA | $11,800,400 |
| 118 | Jackson | Main Architecture | $11,595,103 |
| 119 | Crawford Architects | $11,500,000 |
| 120 | Miller Dunwiddie | $11,133,340 |
| 121 | AE Works Ltd. | $11,065,265 |
| 122 | FK Architecture | $10,900,000 |
| 123 | SEI Design Group Architects | $10,795,224 |
| 124 | KCBA Architects | $10,683,500 |
| 125 | EDI International | $10,626,832 |
| 126 | ThenDesign Architetcure | $10,323,000 |
| 127 | Lunz Group, The | $10,308,455 |
| 128 | SGA | NarmourWright Design | $10,121,836 |
| 129 | Method Architecture | $9,514,337 |
| 130 | Cortland Build | $9,176,401 |
| 131 | Adache Group Architects | $9,000,000 |
| 132 | Think Architecture | $8,985,000 |
| 133 | GSB | $8,938,810 |
| 134 | RKTB Architects | $8,803,348 |
| 135 | NSPJ Architects | $8,782,714 |
| 136 | McFarlane Architects | $8,700,000 |
| 137 | Hastings+Chivetta Architects | $8,600,452 |
| 138 | Glenn|Partners | $8,101,344 |
| 139 | Finegold Alexander Architects | $8,013,479 |
| 140 | Ashley McGraw Architects | $7,873,279 |
| 141 | Curtis + Ginsberg Architects | $7,800,000 |
| 142 | Mascari Warner Dinh Architects | $7,800,000 |
| 143 | Montroy DeMarco Architecture | $7,090,000 |
| 144 | Dyer Brown & Associates | $6,994,338 |
| 145 | Blair + Mui Dowd Architects | $6,603,848 |
| 146 | Architecture Design Collaborative | $5,875,000 |
| 147 | FitzGerald | $5,800,000 |
| 148 | DLA+ Architecture & Interior Design | $5,700,000 |
| 149 | Studio+ | $5,221,516 |
| 150 | BartonMalow | $4,777,858 |
| 151 | Guide Architecture | $4,435,779 |
| 152 | MKM Architecture + Design | $4,353,745 |
| 153 | CB Design Group | $3,796,384 |
| 154 | JRS Architect | $3,750,000 |
| 155 | DMS Design | $3,500,000 |
| 156 | BRP Architects | $3,480,000 |
| 157 | RGA Architects | $3,281,050 |
| 158 | ATA Beilharz Architects | $2,930,000 |
| 159 | 45 Architecture | $2,737,255 |
| 160 | Line Scale Form | $1,195,600 |
| 161 | Warner Nease Bost Architects | $1,062,000 |
| 162 | AE Design Group | $840,600 |
| 163 | Brownstone | $634,176 |
| 164 | Body Lawson Associates | $616,393 |
| 165 | Scientia Architects | $500,000 |
SOURCE: 2021 Giants 400 Report Note: Steelman Partners was added to the list on 9/2/21.
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