ABN Amro
Aconite
AmbironTrustWave
American Express
Apollo Enterprise Solutions
Argencard
Asta Funding
Bank of America
Banksoft
Barclays
Betamax
Cadmus
Ca[ital REcovery
CardLogix
Cartes BAncaires
Catuity
CCV
Certegy
CH Jones/Keyfuels
Chase Paymentech
CheckCare
Citibank
Comms XL
Component Distributors
CrossCheck
DBS Bank
Discover Financial
eFunds
Encircle Payments
Encore Capital Group
EnterCard
Equifax
Evropeyskiy Bank
Fair Isaac
FastLane
Fexco
Fingerprint Cards
First Annapolis
First DataCorp.
FleetCor
Foreword Financial
Frontier Airlines
GEMoney
Giesecke & Devrient
Global Payments
Harris Bank
HSBC
Hypercom
i2c Inc.
ICMA
Ingenico

Inside Contactless
Intellect
Interstate Connections
Javelin Strategy & Research
JCB
JPMorganChase
Komercni Banka
Loyalty Magic
Maroc Traitement de Transactions
MasterCard
Matica System
MetaBank
Morgan Beaumont
National Check Trust
NetSpend
New Edge Networks
North American Bancard
Nxgen Payment Services
Obopay
OmniPay
Pay By Touch
Pier 1
PNC Cards
Quake Mobile Payments
QualComm
Rainbow Rewards
RBS Lynk
Retail Decisions
Sage Software
Sagem Monetel
Smart Technology Solutions
SouthernLinc Wireless
SunTrust Bank
TechTrex
Telecheck
The 41st Parameter
The Home Depot
TietoEnator
Travelocity
TSYS
United Bank Card
VeriFone
Versatile Card TEchnology
VErus
Visa International
Wachovia Bank
Way Systems
Wells Fargo
Wincor Nixdorf
Yodlee
Xiring