Hammel, Green and Abrahamson, Inc. (HGA) is an American architecture, engineering and planning firm with offices in Minneapolis and Rochester, Minnesota; Milwaukee, Wisconsin; Los Angeles, San Francisco, and Sacramento, California; and Washington, DC. The firm was founded in 1953 by Richard Hammel, Curt Green, and Bruce Abrahamson. HGA provides services in architecture, interior design, engineering, planning, lighting design, landscape architecture, and environmental graphics design. The firm has worked on projects in the healthcare, arts and culture, community, corporate, education, government, and science and technology sectors. HGA has received numerous awards for its work, including the American Institute of Architects (AIA) Architecture Firm Award in 2013.
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