AETNA/US Healthcare

Allergan

ALPO

American Red Cross

ARCO Chemical Company

AstraZeneca Pharmaceuticals

Brach & Broch Confectioners

Bristol-Myers Squibb

BTG Pharmaceuticals

Chiron

Christiana Care Health System

Citibank

Comcast

Connectiv

DuPont

Fox Chase Cancer Center

Gerber

Graduate Health Systems

Glaxo/SmithKline

Independence Blue Cross

MBNA

McNeil

Mercer Medical Center

Merck & Co., Inc.

Monitor Group

National Consumers League

Nestle

Nordic Track

Psyma International Inc

Schlumberger

Scott Paper Company

Tandem Associates

The Research Partnership

Valvoline

Weightman Advertising Inc.

Wyeth Pharmaceuticals