| Rank 2020 | Rank 2019 | New | Practice name | Country | Architects employed | Fee Income (US $million) |
|---|---|---|---|---|---|---|
| 1 | 1 | Gensler | USA | 2817 | ||
| 2 | 2 | Nikken Sekkei | Japan | 1910 | $500-599m | |
| 3 | 3 | AECOM | USA | 1637 | $600-699m | |
| 4 | 4 | HDR | USA | 1590 | $400-499m | |
| 5 | 6 | Sweco | Sweden | 1200 | ||
| 6 | 7 | IBI Group | Canada | 870 | ||
| 7 | 9 | Aedas | China | 821 | $240-249m | |
| 8 | 12 | HKS | USA | 777 | $260-269m | |
| 9 | 5 | Perkins and Will | USA | 762 | $600-699m | |
| 10 | 11 | Perkins Eastman | USA | 752 | $270-279m | |
| 11 | 13 | DLR Group | USA | 706 | $270-279m | |
| 12 | 19 | Heerim Architects & Planners | South Korea | 649 | $180-189m | |
| 13 | =16 | CannonDesign | USA | 645 | $170-179m | |
| 14 | 10 | DP Architects | Singapore | 644 | ||
| 15 | 18 | SmithGroup | USA | 608 | $210-219m | |
| 16 | 20 | Haeahn Architecture | Republic of Korea | 597 | $100-109m | |
| 17 | 15 | Stantec | Canada | 573 | $330-339m | |
| 18 | 21 | Nihon Sekkei | Japan | 542 | $170-179m | |
| 19 | 22 | ATP Architects Engineers | Austria | 535 | $100-109m | |
| 20 | 23 | gmp Architekten | Germany | 497 | $90-99m | |
| 21 | 8 | HOK | USA | 492 | $300-309m | |
| 22 | =16 | White Arkitekter | Sweden | 487 | $80-89m | |
| 23 | 26 | ZGF Architects | USA | 476 | $130-139m | |
| 24 | 30 | BDP | UK | 466 | $80-89m | |
| 25 | New | RSP | Singapore | 458 | $80-89m | |
| 26 | 32 | HPP Architekten | Germany | 454 | $60-69m | |
| 27 | 14 | Foster + Partners | UK | 452 | $200-209m | |
| 28 | New | Arcplus Group | China | 432 | $600-699m | |
| 29 | 29 | NBBJ | USA | 407 | $170-179m | |
| 30 | 28 | Kume Sekkei | Japan | 406 | $120-129m | |
| 31 | 31 | Mitsubishi Jisho Sekkei | Japan | 370 | $190-199m | |
| 32 | 38 | ASYA | Philippines | 346 | $10-19m | |
| 33 | 33 | LINK arkitektur | Norway | 339 | $60-69m | |
| 34 | 35 | P&T Group | China | 327 | $110-119m | |
| 35 | 34 | DLN Architects | China | 325 | ||
| 36 | 36 | LWK & Partners | China | 322 | $80-89m | |
| 37 | 37 | Kunwon | Republic of Korea | 312 | $100-109m | |
| 38 | 42 | EHAF Consulting Engineers | UAE | 310 | $50-59m | |
| 39 | 53 | Allford Hall Monaghan Morris | UK | 297 | $50-59m | |
| 40 | =40 | National Engineering Bureau | UAE | 279 | $60-69m | |
| 41 | =40 | Chapman Taylor | UK | 277 | $40-49m | |
| 42 | 45 | Dewan Architects + Engineers | UAE | 272 | $60-69m | |
| 43 | 44 | IDOM | Spain | 271 | $50-59m | |
| 44 | =59 | Ronald Lu & Partners | China | 270 | $60-69m | |
| =45 | 46 | Aidea | Philippines | 265 | $10-19m | |
| =45 | 52 | Lemay CO | Canada | 265 | $80-89m | |
| 47 | 55 | PBK | USA | 260 | $110-119m | |
| =48 | 43 | Architectus Australia | Australia | 252 | $40-49m | |
| =48 | 51 | KEO | Kuwait | 252 | $170-179m | |
| 50 | =59 | AXS Satow | Japan | 251 | $80-89m | |
| 51 | New | MVRDV | Netherlands | 250 | $30-39m | |
| 52 | 47 | Bates Smart | Australia | 238 | $40-49m | |
| 53 | 39 | Leigh & Orange | China | 233 | $60-69m | |
| 54 | 58 | Corgan Associates | USA | 227 | $130-139m | |
| 55 | 57 | DSP Design Associates | India | 221 | $10-19m | |
| 56 | 84 | Wong Tung & Partners | China | 217 | $50-59m | |
| 57 | 50 | Bjarke Ingels Group | Denmark | 213 | $60-69m | |
| 58 | 48 | B+H Architects | Canada | 205 | $50-59m | |
| 59 | 54 | GHD Woodhead | Australia | 201 | $60-69m | |
| =60 | =61 | Broadway Malyan | UK | 200 | $40-49m | |
| =60 | 65 | Wilmotte & Associés | France | 200 | $40-49m | |
| 62 | =61 | Archetype Group | Vietnam | 199 | $20-29m | |
| =63 | 63 | Allies and Morrison | UK | 186 | $40-49m | |
| =63 | 67 | Aukett Swanke | UK | 186 | $20-29m | |
| 65 | New | CCDI Group | China | 183 | $40-49m | |
| 66 | =70 | Sheppard Robson | UK | 181 | $30-39m | |
| 67 | =72 | Nordic - Office of Architecture | Norway | 180 | $30-39m | |
| 68 | 74 | Valode & Pistre | France | 177 | $30-39m | |
| 69 | =72 | Jaspers-Eyers Architects | Belgium | 172 | $20-29m | |
| 70 | 77 | Page | USA | 169 | $160-169m | |
| 71 | 66 | Itten + Brechbuehl | Switzerland | 162 | $50-59m | |
| 72 | 90 | Visionarch | Philippines | 160 | $5-9m | |
| 73 | =103 | Surbana Jurong | Singapore | 159 | $50-59m | |
| 74 | 76 | 10 Design | China | 158 | $30-39m | |
| 75 | 64 | Henning Larsen | Denmark | 157 | $40-49 | |
| 76 | =81 | C.F. Møller Architects | Denmark | 154 | $40-49m | |
| 77 | =70 | UNStudio | Netherlands | 150 | $30-29m | |
| 78 | 68 | SSH | Bahrain | 148 | $70-79m | |
| 79 | 78 | Progetto CMR | Italy | 147 | $10-19m | |
| =80 | =79 | CP Kukreja Architects | India | 140 | $5-9m | |
| =80 | =79 | Morphogenesis | India | 140 | $5-9m | |
| 82 | 85 | GF & Partners | Philippines | 134 | Under $5m | |
| 83 | 87 | A26 Architectures | France | 130 | $20-29m | |
| 84 | 91 | Sikka Associates | India | 128 | $5-9m | |
| 85 | 88 | Scott Brownrigg | UK | 125 | $20-29m | |
| =86 | New | EPR Architects | UK | 122 | $20-29m | |
| =86 | 89 | Pascall+Watson | UK | 122 | $20-29m | |
| 88 | 92 | Leo A Daly | USA | 119 | $110-119m | |
| 89 | 96 | Feilden Clegg Bradley Studios | UK | 115 | $20-29m | |
| 90 | 86 | AHR | UK | 111 | $20-29m | |
| 91 | =98 | Diamond Schmitt Architects | Canada | 110 | $20-29m | |
| =92 | New | Batlle i Roig Arquitectura | Spain | 108 | ||
| =92 | New | Squire & Partners | UK | 108 | ||
| 94 | 97 | Saraiva + Associados | Portugal | 106 | $20-29m | |
| 95 | =117 | Hames Sharley | Australia | 104 | $20-29m | |
| 96 | 93 | Purcell | UK | 102 | ||
| 97 | =101 | Gulf Consult | Kuwait | 82 | $40-49m | |
| =98 | 106 | Boogertman + Partners | South Africa | 72 | $10-19m | |
| =98 | =81 | Warren and Mahoney | New Zealand | 72 | $30-39m | |
| 100 | 110 | Jestico + Whiles | UK | 70 | $10-19m |
WA100 2020:The big list
View a table of this year’s top 100 architects
WA100 is Building Design’s annual survey of the world’s largest practices ranked by the number of fee-earning architects they employ.