A
Abbott Laboratories
Advanced Technologies and Laboratories
Affinity Environmental Group, Inc.
Alliance Data Systems
Allied Signal Consumer Products Group
American Hospital Association
Amgen Incorporated
ATL International Incorporated

B
Battelle Memorial Institute
The Bibb Company
BF Goodrich Performance Materials Plant
BFI
Bowling Green State University
Brush Wellman
BWC-Division of Safety and Hygiene

C
Cardinal Laboratories, Inc.
Celaris Insurance Group
Chemical Abstracts Service
Chemtron Corporation
City of Piqua, Ohio
City of St. Louis Health Division
City of Toledo Water Reclamation
City Toledo, Dept Heath and Environment
CLARK Construction
Clayton Environmental Consultants
Columbia Gas of Ohio
Columbiana County Health Department
Cooper Tire and Rubber Company
Coors Brewing Company
Cuyahoga County Board of Health
Cuyahoga County Health Department
CWM Resource Recovery Incorporated

D
Department of Air Pollution Control
Department of the Navy
Department of Natural Resources-Georgia
Dine Comply Inc.

E
E.L. Stone Company Incorporated
East Ohio Gas
Ehove Career Center
Emilcott - DGA
Environmental Resources Management
Envirosafe Services
EPA, Division of Solid and Infectious Waste

F
FERMCO
Ferro Corporation
The Flood Company
Foley Consultants
Ford Motor Company
Frost and Jacobs LPA

G
Gannett Fleming Incorporated
General Electric
Geo-Con
The George Washington University Medical Center
Great Lakes Trucking Equipment
Green Manufacturing Incorporated
Guittard Chocolate Company

H
Hamilton County Environmental Services
Harvard School of Public Health
Henry County Health Department
Honda of America Manufacturing Incorporated
Hylant Administrative Services Incorporated
HZW Environmental Consultants Incorporated

L
Lake County General Health District

M
Mactec Engineering and Consulting of Georgia
Marion County Health Department
Martin Marietta Energy Systems Incorporated
McLaren/Hart Environmental Engineering
Miami County Health Department
Midwest Environmental Consultants

N
Naples Community Hospital
NASA Glenn Research Center
National Oceanic Atmosphere Administration

O
Oakland County Health Division
Oakland County Sanitation
Occupational Health and Safety Administration
Ohio Division of Safety and Hygiene
Ohio EPA
Olin Corporation
Operating Consulting Services
Ottawa County Health Department

P
Parker Hannifin Corporation
Pepsi Company, Frito Lay Division
Pfizer
Phibro USA
Photonics Systems

R
Reserve Environmental Services
Richland County Health Department

S
Safety-Kleen
The Sherwin-Williams Company
Smith Management Group
Southwest District Health Dept.
State of MO, Department of Natural Resources
State of Ohio, Division of Safety and Hygiene
Super Value

T
Tetra Tech NUS
Toledo Metro Parks
Toledo Edison
TolTest Incorporated

U
University of Illinois, School of Public Health

V
Vision Environmental Incorporated

W
W.C. Wood Company Incorporated
Whirlpool Corporation-Marion Division