Below is a Partial List of GEC Projects:

 

Department of Energy (DC)

Department of Energy (Germantown)

National Museum of American History

National Museum of Natural History

Andrews Air Force Base

Bolling Air Force Base

Patuxent River Naval Air Station

Patuxent River Naval Air Station Webster Field

Indian Head Naval Air Station

Indian Head Naval Air Station Stump Neck Annex

Frederick Douglas National Historic Site

Veteran's Affairs Military Hospital (DC)

Veteran's Affairs Military Hospital (Perry Point)

National Institute of Health

United States Naval Research Laboratory

Fort Detrick

Fort Myer

Fort Meade

Fort McNair

National Courts Building

Holiday Inn (Chevy Chase)

Washington Navy Yard

Bureau of Alcohol, Tobacco, Firearms, and Explosives

Department of State

Department of State Navy Hill

Federal Trade Commission

Environmental Protection Agency

Federal Aviation Administration

United States Department of Agriculture

Hewlett Packard 

Hirshhorn Museum and Sculpture Garden; Smithsonian

United States Department of Agriculture

US Department of Treasury