Aberdeen Research
ACI Worldwide
AdvanceMe
Advanta
AirPlus
Alliance Data
American Banknote Corp.
American Express
Apriva
Arcot
Arthur Blank & Co.
B&S Card Service
Bain & Company
Bank of America
Bank of Montreal
Barclaycard
Bell ID
Best Buy
Blackstone Group
Bluebird Soft
Boston Consulting
Capital One
Cardware International
Chase Card Services
CheckFreePay
Citibank
Commerce Bank
Commerciant
Commonwealth Bank
CompuCredit
CPI Card Group
Credit Info Bureau
Cryptomathic
Debt Resolve
Didier Printing
Discover Financial
Dun & Bradstreet
First American Payment
First Annapolis
First Data Corp.
First Manhattan
Galaxy Asset Management
Galileo Processing
Garanti Bank
GE Money
Givex
Global Leaders
GreenDot
Harris Bank
HID Corp.
HSBC
Hypercom
i2c inc.
IDT Financial

Ingenico
Innovative Card Tech.
Inside Contactless
JPMorgan Chase
IQPC
LaSer
MagTek
MasterCard Worldwide
McKinsey & Co.
McLagan
Metavante
mFoundry
Newcastle Building Society
Nova Information Systems
Office Depot
Oliver Wyman
Opera Software
Payment Alliance Int'l.
Payment China
PaySimple
Payvision
POS Portal
Prepaid Card Expo
PSCU Financial Services
PTE
Punjab National Bank
RBS Lynk
Ready Credit Corp.
Sagem Orga
Samport
SCSL
Shop. org
SignaPay
Smartrac
SmartSoft Info Tech.
Southeast Acquirers
Southwest Airlines
Standard Chartered
Starz Entertainment
Target
Thales
Transaction Network Serv.
TransUnion
TSYS
Turkcell
Unlimited Diversity
U.S. Bank
USAA FCU
VeriFone
Visa USA
ViVOtech
Wal-Mart
Washington Mutual
Wells Fargo