Headquartered in New York City, the firm is led by founding Principals Bradford Perkins and Mary-Jean Eastman.

[2] Bradford Perkins met his future Perkins Eastman co-founder, Mary-Jean Eastman, in the late 1970s when they were both working on New York City's bid to host the 1984 Summer Olympics—Perkins was with the joint venture of Davis Brody and Llewelyn-Davies International while Eastman was working in tandem for the State of New York.

[5] In addition to the co-founders, Chairman Bradford Perkins and Vice Chair Mary-Jean Eastman, the company named Shawn Basler, Nick Leahy, and General Counsel Andrew Adelhardt III as co-CEOs on Jan. 25, 2019.

[6] The five leaders comprise an executive committee that also includes principals Hilary Bertsch, Jeffrey Brand, Jason Haim, Stephanie Kingsnorth, Barbara Mullenex, Supriya Thyagarajan, Jeff Young, Chief Financial Officer Paul Grillo, and Human Resources Director Salema Gumbs.

[8] According to the Architectural Record, It is the 14th largest architectural firm in the United States,[9] Internationally, the firm operates studios in Dubai; Guayaquil, Ecuador; Mumbai; Shanghai; Singapore; Toronto; and Vancouver.