Contact Information
Project Types
Historic Rehabilitation/Retrofit, Seismic Evaluation & Reports, Structural Peer Review
Office Locations

San Francisco

Los Angeles

Oakland

Newport Beach

Boston

Waltham (Headquarters)

Washington, DC

New York

Chicago

Houston

Year Founded
1974
Number of Employees
615
Brief Description of Company
Simpson Gumpertz & Heger Inc. is a national engineering firm that designs, investigates, and rehabilitates structures, building enclosures, and materials. In addition to buildings, SGH designs, investigates and rehabilitates marine structures, heavy civil structures, industrial facilities including oil and gas production facilities. SGH has provided structural engineering services continuously in San Francisco since 1974.