- A1 Telekom Austria
- American Express
- Bouygues
- DNA Oyj
- Free Mobile
- Google Play Balance
- H3G Italia
- KPN (Koninklijke KPN N.V.)
- MasterCard
- Orange (France)
- Orange (Luxembourg)
- Orange (Slovakia)
- Orange (Spain)
- PayPal
- Paysafecard
- Proximus Group
- T-Mobile International (Austria)
- T-Mobile International (Germany)
- T-Mobile International (Greece)
- T-Mobile International (Netherlands)
- T-Mobile International (Slovakia)
- Tele2 Netherlands
- Telefónica
- Three (Hi3G Ireland)
- Three (Hutchison Drei Austria)
- TIM (Telecom Italia)
- Visa
- Vodafone (Spain)
- Vodafone Deutschland
- Vodafone Italia
- Vodafone Libertel
- Vodafone Portugal
- Wind Telecomunicazioni