References
- A1, Croatia
- Cardlink, Greece
- EME, Hungary
- Erste Card Club, Croatia
- Erste Group Card Processor, Croatia
- First Data International/FiServ, Germany
- Ingenico Payment Services, Belgium
- Mercury Processing Services International, Croatia/Slovenia
- mStart Plus, Croatia
- National Bank of Greece, Greece
- O2, Czech Republic
- OTP Croatia
- Paynation, Belgium
- Prolaz, Croatia
- Sepay, Netherlands
- Six Payments Services, Luxembourg
- Unicredit Bank BiH
- Zagrebačka banka, Croatia
