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Private company

HED

Architecture and engineering firm

HED (formerly Harley Ellis Devereaux) is an architecture and engineering firm based in Royal Oak, Michigan with additional offices in Boston, Massachusetts, Chicago, Illinois, Dallas, Texas, Denver, Colorado, Sacramento, San Francisco, Los Angeles, and San Diego, California. The firm was founded in 1908 by architects Alvin E. Harley and Norman S. Atcheson.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1908Founded1

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HED (formerly Harley Ellis Devereaux) is an architecture and engineering firm based in Royal Oak, Michigan with additional offices in Boston, Massachusetts, Chicago, Illinois, Dallas, Texas, Denver, Colorado, Sacramento, San Francisco, Los Angeles, and San Diego, California. The firm was founded in 1908 by architects Alvin E. Harley and Norman S. Atcheson.2

The story

Since its inception in 1908, the firm has been called:

Harley and Atcheson (1908–1912)

Alvin E. Harley, Architect (1912–1932)

Harley and Ellington (1933–1942)

Harley, Ellington and Day (1943–1960)

Harley, Ellington, Cowin and Stirton (1961–1968)

Harley Ellington Associates (1969–1972)

Harley Ellington Pierce Yee Associates (1973–1994)

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Harley Ellington Design (1995–1999)

HarleyEllis (2000–2005)

HED (Harley Ellis Devereaux) (2006–present)

From Wikipedia’s article on Harley Ellis Devereaux, shared under CC BY-SA 4.0.3

Products and brands

Royal Oak, Michigan

Chicago, Illinois

Los Angeles, California

Sacramento, California

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San Diego, California

San Francisco, California

Dallas, Texas

Denver, Colorado

Boston, Massachusetts

From Wikipedia’s article on Harley Ellis Devereaux, shared under CC BY-SA 4.0.3

Timeline

  1. 1908Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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