Creator
- Marlene Imirzian & Associates Architects, founded 1995 63
- Skidmore, Owings & Merrill, 1939- 58
- Pelli, Cesar, 1926- 56
- Viñoly, Rafael, 1944- 55
- Kanner Architects, renamed 1994 54
- Bohlin, Cywinski, Jackson Firm, founded 1965 53
- William Rawn Associates, founded 1983 50
- Kohn Pederson Fox, founded 1976 48
- Moss, Eric Owen, 1943- 46
- Mia Lehrer Associates, founded 1997 44
- Artisan Homes Inc. [Phoenix], established 1998 42
- James Dayton Design, founded 1997 38
- Koolhaas, Rem, 1944- 35
- Office for Metropolitan Architecture (OMA), 1975- 35
- Eric Davy, AIA & Associates, founded 1984 32
- Blank Studio, founded 2001 27
- Allied Works Architecture, founded 1994 25
- Ban, Shigeru, 1957 25
- Bruder, William P., 1946- 25
- Cloepfil, Brad, 1956 25