American Security Bank

Apogee

Arts Club, The

Artworks Inc.

Baker, E.A., Company, The

Barnes, Morris, Pardoe & Foster Management Companies

Beth Tikva Synagogue & School

BioReliance

Bloomingdales

Cafritz Group, The

Capital Hilton Hotel

Carey Winston Company

Cassidy, James A., Company, The

Cattail Creek Country Club

Children's National Medical Center

Chinese Bible Church

Christine Valmy

City Lights School, Inc.

Clark Construction, Inc.

Commission on Civil Rights

Corcoran Gallery of Art, The

Cosmos Club, The

Covance

CSX Realty, Inc.

Cullen Companies

Cystic Fibrosis Foundation

David Taylor Research Center

Earle Palmer Brown

Edgemoor Tennis & Swim Club

Ellis Company, The Richard

Embassy of Australia, The

Embassy of Ethiopia, The

Embassy of  The Federal Republic of Germany

Embassy of Sweden, The

Equitec Properties

ERSI

Estee Lauder

Fairfax Medical Laboratories

Federated Department Stores

First Interstate Bank

Folger Shakespeare Library, The

Foulger-Pratt Construction

General Services Administration, The (GSA)

Hallwood Management Companies

Harvey Companies, The

Hazleton Washington, Inc.

Health Med Montgomery

Heidenberger Construction Inc.

Herman Stewart Company

Hillwood Museum

Horizon Health Inc.

Howard Hughes Medical Institute

Hyman, George, Construction Co., The

IGEN, Inc.

Ink Company, The

International Country Club

International Hospitality Group

Intracare, Inc.

Invitrogen

JCPenney

Joint Center for Political and Economic Studies

Kasimer & Annino Law Offices

Knights of Columbus

Kohr Brothers, Inc.

Landon School

Langley Park Plaza

Lenkin Companies

Life Technologies

Linder Associates

LUTC

Manor Care, Inc.

Marconi Ltd

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