Altman Weil & Pensa, Inc.

American Nurses

ATOFINA

Banc One Corporation 

Bank of America

Berlex

Betz Labs 

California Medical Association

Citicorp 

City of San Diego

Conoco, Inc

County Sanitation Districts of Los Angeles County

Crowe Chizek

Digital Equipment Corporation

DuPont

Dupont Merck

Duquesne Light

Elf Atochem

ExpressJet

Fannie Mae

FMC Corporation

Georgia Pacific

GO Transit

Hennepin County AG

Inland Real Estate

Internal Revenue Service

Ithaca College

Johnson & Johnson

LA Museum of Art

Liquent, Inc.

Lord Corporation

Marathon Ashland Petroleum

NCCOSC

Northrup Grumman

NYC Law Department

Perfect Access Speer

ProDocs

Public Financial Management

Research Triangle Institute

Santa Clara Water District

State of Nevada Legislative Council

TEK/Allegis

The Ball Corporation 

The Segal Company

Trust Company of the West

TSWL

US Department of the Interior Bureau of Land Management

US Ecology

Van Dusen & Associates

Wall Street Services

Yorkshire Water