Abbott Laboratories
Aerojet Corporation
Air Products & Chemicals
Alcoa
Allegheny Energy, Inc.
ALLETE, INC.
Alliant Energy
Alyeska Pipeline Service
American Airlines, Inc.
American Petroleum Institute
Anheuser-Busch Companies
Argonne National Laboratory
Arizona State University
AstraZeneca Pharmaceuticals
Avery Dennison Corporation
Baker Hughes Corporation
Battelle
Baxter International Inc.
Bechtel Bettis, Inc.
Bechtel Corporation
Bechtel Jacobs Company LLC
Boeing Company, The
BP Amoco
Brookhaven National Laboratory
B&W-Y12 LLC
Cabot Corporation
Calif. Institute of Technology
Cardinal Health, Inc.
Cargill Incorporated
Celanese Corporation
Center for Toxicology & Envro.
CenterPoint Energy
CH2M Hill, Inc.
Champion Technologies, Inc.
Cheniere Energy
Chevron Phillips Chemical Co.
CITGO Petroleum Corporation
Clean Harbors Enviro. Svcs.
Colorado Springs Utilities
Combat Service Associates
ConocoPhillips
Constellation Energy Group, Inc.
Cornell University
Covanta Energy Corporation
CSX Corporation
DCP Midstream, LP.
Dean Foods
Delta Air lines, Inc.
Dominion Resources, Inc.
Duke Energy Company
E.I. du Pont de Nemours Co.
Eastman Chemical, Inc.
Eastman Kodak Company
Ecolab, Inc.
EG&G, Inc.
Energy Future Holdings, Inc.
EORM, Inc.
EPCO, Inc.
Eugene Water & Electric Board
Exelon Corporation
Fermi National Accelerator Lab.
Fireman’s Fund Insurance, Inc.
Flint Group-North America
Florida Power & Light Company
Fluor Hanford, Inc.
Fred Hutchinson Cancer Res. Center
Freeport-McMoRan Copper & Gold
Genentech, Inc.
Georgia Institute of Technology
Halliburton Company
Hawaiian Electric Company
Hewlett Packard Company
Hexion Specialty Chemicals
Honeywell Federal Mfg. & Tech.
Huntsman Corporation
Idaho Nat'l. Eng. & Enviro. Lab
Intel Corporation
International Paper Company
J.R. Simplot Company
Jacobs Engineering Group
Jet Propulsion Laboratory
Johnson & Johnson
Kellogg Brown & Root (KBR)
Kimberly-Clark Corporation

Knolls Atomic Power Laboratory
Kohler Company
Lawrence Berkeley Nat'l Lab.
Lawrence Livermore Nat'l Lab.
Liberty Mutual Insurance Co.
Lockheed Martin Corporation
Los Alamos National Laboratory
Lyondell Chemical Company
Marathon Petroleum Company
Mayo Clinic
MeadWestvaco Corporation
Micron Technology, Inc.
Mirant Corporation
Monsanto Company
Nalco Company
National Renewable Energy Lab.
National Security Tech, LLC.
New Cure, Inc.
NiSource Inc.
Northrop Grumman Newport News
NuStar Energy, LP.
Oak Ridge Associated Univ.
Occidental Chemical Corp.
Occidental Petroleum Corp.
Owens Corning
Pacific Gas & Electric Company
Pacific Northwest Laboratory
Pinnacle West Capital, Inc.
Port of Portland
Port of Seattle
PPG Industries, Inc.
Progress Energy, Inc.
Public Service Enterprise Group
Qwest Communications
Reliant Energy
Rio Tinto
Roche Colorado Corporation
Roche Pharmaceutical-Palo Alto
Rohm and Haas Company
S.C. Johnson & Company, Inc.
SAIC Frederick
SAIF Corporation
Sandia National Laboratory
Schneider Electric/Square D, Inc.
Science Applications International
Sherwin Williams Company, The
Southern California Edison
Southern Company, The
Spectra Energy
Stanford Linear Accelerator Lab.
Stanford University
State of Oregon
Sunoco, Inc.
Tesoro Petroleum
Texas Mutual Insurance Company
Tyson Foods, Inc.
United States Enrichment Corp.
United States Steel Corporation
University of Arizona
University of California, Davis
University of California, Irvine
University of Maryland
University of Pennsylvania
University of Virginia
University of Texas, Medical
UT MD Anderson Cancer Center
UT- Battelle Oak Ridge Nat’l Lab
Valero Energy Corporation
Visteon Corporation
Vulcan Materials Company
W.R. Grace and Company
Wackenhut Services, Inc.
Wake Forest University
Walt Disney World Company
Washington Closure Hanford LLC.
Washington Division of URS, Inc.
Washington Savannah River Co.
Washington University, St. Louis
Waste Management, Inc.
Weston Solutions, Inc.
Williams Energy
Xcel Energy, Inc.
Yale University