3M Foundation
Abbott Laboratories
Air Products and Chemicals, Inc.
Alcoa
Allied Signal
American College of Occupational
    and Environmental Medicine
Anadarko Petroleum Corporation
AT&T
Atlantic Mutual Companies
Atlantic Richfield Company
BASF Corporation
Bayer Corporation
BellSouth Corporation
Bergen Brunswig Corporation
Boeing Company
BP America Inc.
Bristol-Myers Squibb
Burlington Northern Santa Fe Foundation
Cabot Corporation Foundation
Caterpillar Foundation
Chase Manhattan Foundation
Chevron Corporation
CMS Energy Corporation
Corning Inc
CSX Corporation
Deere & Company
DoubleTree Hotels Corporation
Dow Chemical
Eastman Kodak Company
Exxon Corporation
Fluor Foundation
FMC Foundation
Ford Motor Fund
General Mills, Inc.
Glaxo Wellcome
Goodyear Tire&Rubber Company
GTE Foundation
Hallmark Corp. Foundation
Henkel Corporation
Hoechst Celanese Foundation
Hughes Space & Communications
IBM Corporation
J.P. Morgan
Johnson and Johnson
Joseph E. Seagram & Sons, Inc.
Merrill Lynch
Mobil Corporation
Nalco Chemical
Navistar International Transportation
Nortel (Northern Telecom)
Occidental Chemical
Olin Corporation
Owens-Corning
Pepsico Foundation Inc.
Pfizer Inc
Phelps Dodge Corporation
Phillips Petroleum Company
Praxair, Inc.
Procter & Gamble Fund
R.W. Johnson Foundation
Rohm and Haas Company
SC Johnson Wax
Schering-Plough Foundation
Schlumberger Foundation, Inc
Shell Oil Corporation Foundation
Texaco Foundation
Times Mirror Foundation
Tyco International
Union Carbide Corporation
Union Pacific
USX Foundation Inc.
Warner Lambert Company
Witco Corporation