Harley Ellis Devereaux

HED (formerly Harley Ellis Devereaux) is an architecture and engineering firm based in Royal Oak, Michigan with offices in Royal Oak, Chicago, Illinois, Los Angeles, Sacramento, California, San Diego, Denver, Colorado, Dallas, Texas, Boston, Massachusetts and San Francisco, California.

The firm was founded in 1908 by architects Alvin E. Harley and Norman S. Atcheson.

HED is one of the 200 largest design firms in the United States,[2] employing more than 400 professionals including architects; mechanical, electrical, and structural engineers; landscape architects; interior designers; graphics, signage, and equipment designers; and laboratory design specialists.

The firm specializes in multiple practices including healthcare, workplaces, mixed-use and residential, Pre K-12 schools, higher education, civic and cultural, mission critical, science and advanced manufacturing, community, and federal and transportation.

Since its inception in 1908, the firm has existed as:[citation needed]

Rackham Memorial Education Building (1941) in Detroit 's Cultural Center Historic District by Harley, Ellington and Day.