HOK (formerly Hellmuth, Obata + Kassabaum) is a global architecture, interiors, engineering, planning and consulting firm. HOK is the largest U.S.-based architecture-engineering firm and the world's fourth-largest architectural firm. HOK is also the country's leading design firm in terms of non-U.S. fee growth and the second-largest interior design firm. As of 2009, the firm maintains more than 2,000 professional staff across a global network of ...
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HOK (formerly Hellmuth, Obata + Kassabaum) is a global architecture, interiors, engineering, planning and consulting firm. HOK is the largest U.S.-based architecture-engineering firm and the world's fourth-largest architectural firm. HOK is also the country's leading design firm in terms of non-U.S. fee growth and the second-largest interior design firm. As of 2009, the firm maintains more than 2,000 professional staff across a global network of 23 offices and is active in all major architectural specialties.
HOK was established in St. Louis, Missouri, in 1955. The firm's name is derived from the surnames of its three founding partners: George Hellmuth, Gyo Obata and George Kassabaum, all graduates of the School of Architecture at Washington University in St. Louis.
The practice's first building designs were schools in St. Louis suburbs, and St. Thomas Aquinas High School in Florissant was the first private/parochial school designed by the firm. Another prominent school they designed...
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