AFRICARE, Inc.

American National Red Cross

A & R Development Corporation

Architect of the Capitol, Washington, D.C.

Baltimore City Department of Public Works

Baltimore Development Corporation

Baltimore Metropolitan Council

Barrie School, Montgomery County, MD

BP Amoco

Catholic University of America

Century Engineering

Charles County Government

Circuit City Stores

City of Alexandria, Virginia

City of Annapolis, Maryland

City of Dallas, Texas

City of Richmond, Virginia (Dept. of Public Works)

CSX Real Property, Inc.

CVS, Stores, Inc.

Delaware Department of Transportation (DelDot)

Dewberry & Davis, Inc.

District of Columbia Government

   Department of Housing and Comm.

   Development

   Department of Transportation

EDAW, Inc., Alexandria

Einhorn Yaffee Prescott

Embassy of Azerbaijan

Embassy of Latvia

EXXON Company (USA)

Federal Highway Administration

Frederic R. Harris, Inc.

Fresh Fields Stores, Inc.

General Services Administration (GSA)

Georgetown Day School

Georgetown University Hospital/MedStar Health

Gonzaga College High School

Greenhorne & O'Mara, Inc.

Hammer, Siler, George Associates

Holland & Knight, PC (Attorneys)

Howard University, Washington, D.C.

International Monetary Fund (IMF)

JBG Companies

JHK Associates/TransCore

Johns Hopkins University-APL

Johnson, Mirmiran and Thompson, P.A.

Kimley-Horn & Associates, Inc.

KSI Services, Inc.

Linowes & Blocher, LLP (Attorneys)

Maryland Environmental Service

Maryland State Highway Administration

Meyers, Rodbell & Rosenbaum, P.A.

Mid-City Urban, LLC

Mirant Mid-Atlantic, LLC

Mobil Oil Corporation

Montgomery College, Rockville, MD

Montgomery County Government

Montgomery Wards Stores

National Park Service

O'Malley, Miles, Nylen & Gilmore, P.A.

Papa John's Pizza, Inc.

Parsons, Brinckerhoff, Quade, Douglas, Inc.

Parson's Transportation Group

Pope John Paul II Cultural Center

Post, Buckley, Schuh, Jernigan, Inc.

Quad Construction Corp.

Robert J. Nash Associates

Sabra, Wang & Associates, Inc.

Safeway Stores, Inc.

St. Coletta of Greater Washington

Schenectady, (Town of) New York

Shaw Pittman, LLP (Attorneys)

Sorg and Associates, Washington, D.C.

Southland Corporation (7-11 Stores)

Sverdrup Civil, Inc.

Sulton, Campbell, Britt, Owens & Assoc., P.C.

The Brandywine Companies, Inc.

The Michael Companies

Torti Gallas-CHK Architects & Planners

Toys-R-Us Corporation

Trinity College, Washington, D.C.

US Homes Corporation

United States Department of Agriculture (USDA)

United States Postal Services (USPS)

Vanasse, Hangen, Brustlin, Inc., Boston, MA

Verizon (Bell Atlantic)

Virginia Department of Transportation (VDOT)

Virginia Commonwealth University

Virginia Ports Authority, (VPA)

Wallace, Robert & Todd, Philadelphia, PA

Washington Hospital Center/MedStar Health

Washington International School, Wash., DC

Washington. Metropolitan Area Transit Authority

Washington Redskins, Inc.

Waste Management, Inc. (WMI)

WAWA, Inc.

White Flint Mall, Rockville, MD

Whitman, Requardt & Associates, Inc.

Wilbur Smith & Associates

Wilkes, Artis, Hedrick & Lane, Chtd. (Attorneys)