GLH, Incorporated

Alcoa Aluminum	Planning Research Corporation
AMTRAK	State of Florida, Natural Resources
A T & T	The Analytic Sciences Corporation
BASF	The Smithsonian Institution
Citibank	The Timken Company
City of Burlington, Vermont	Tennessee Valley Authority
City of Richmond, Virginia	Teramura Associates
City of Las Vegas, Nevada	Toyo Denki Seizo
Continental Telephone Corporation	Travelers Insurance
County of Arlington, Virginia	U.S. Department of Agriculture
County of Prince William, Virginia	U.S. Department of the Army
Creare, Inc.	U.S. Department of Commerce
Defense Logistics Agency	U.S. Department of H.H. S.
Denro Laboratories	U.S. Department of Interior, U.S.G.S
E.I. Du Pont De Nemours	U.S. Department of Justice, I.N.S
General Electric Company	U.S. Department of Labor, U.I.S
General Services Administration	U.S. Merit Systems Protection Board
Goodyear Aerospace Corporation	U.S. Department of Transportation
Health Data Institute	United Technologies Corporation
Israeli Navy	Virginia D.O.T
Israel Military Industries, Ltd.	Virginia Railway Express
Internal Revenue Service	Washington Metro Council of Governments
John J. McMullen, Associates, Inc.
Long Island Rail Road
Martin Marietta Corporation
New York Power Authority
New York City Transit Authority
Nuclear Fuel Services, Inc.