USA:
Capital One
IBM
Juniper Networks
NASA
NOVA University
Shell Oil
Tyco Electronics
University of Massachusetts, Amherst
University of Texas MD Anderson Cancer Center
US Federal Defenders
US Department of Probation
US Army National Guard
World Bank

Holland:
ADAC
Tax Office Holland

Portugal:
Portugal Telecom

India:
American Express
CitiBank
Exide Industries Ltd.
Hindustan Petroleum Co.
International Chemical Industries)
Indian Institute of Technology
Indian Oil
Millipore India Ltd.
National Thermal Power Corp.
Philips Carbon Black
TELCO
Texas Instruments
Tin Plate Co.
TISCO

Peru:
NEXTEL
Sud-Chemie

Brazil:
Prefeitura Da Cidade de Rio
(The government of Rio de Janaeiro)

Venezuela:
Citibank Group