Gensler through the years.

1965: firm founded by Art Gensler.

1967: first major contract Bank of America.

1970: two offices, 45 staffers.

1974: first of 600+ projects for The Gap.

1981: ranked #1 Interior Design Giant.

1985: Art Gensler inducted into Interior Design 's Hall of Fame.

1988: first overseas office in London.

1990: celebrates 25th anniversary.

1993: new offices in Atlanta, Detroit, New Jersey, Tokyo, Hong Kong.

1995: first major hospitality renovation at the Beverly Hills Hotel.

1998: awarded GCHQ, one of the largest European projects.

1998: the Gensler Design Excellence Awards program is established.

2005: awarded the U.S. Green Building Leadership Award.

2006: earns Most Admired by Peers accolade in Interior Design Giants survey.

2007: gServe community program established.

2009: wins world’s largest development projects in CityCenter, Las Vegas.

2009: first firm inducted into Interior Design 's Hall of Fame.

2013: publishes the U.S. Workplace Survey.

2015: celebrates 50th anniversary.

2015: forty-six offices, 5,000 staffers, 31 practice areas.