Gwathmey Siegel & Associates
Founded: 1967
Partners: Charles Gwathmey, Robert Siegel, Gene Kaufman (2009)
Projects: 445 Lafayette Street, Guggenheim Museum Renovation, Museum of Contemporary Art North Miami, Astor Place Tower
University of Cincinnati Tangeman University Center, Cincinnati, Ohio (2004)

Guggenheim Museum Expansion, New York City, New York (1990 – 1992)

Bryant University Interfaith Chapel, Smithfield, Rhode Island (2009)

Cornell University Bartles Hall, Ithaca, New York (1990)

Astor Place Tower, New York City, New York (2004 – 2005)
