- A1 Telekom Austria
- American Express
- Bouygues
- Free Mobile
- Google Play Balance
- KPN (Koninklijke KPN N.V. Netherlands)
- MasterCard
- O2 Slovakia
- Orange (Belgium)
- Orange (France)
- Orange (Spain)
- PayPal
- Proximus Group
- SFR (Société Française Du Radiotéléphone)
- T-Mobile International (Germany)
- Tele2 (Italy)
- Telefónica
- Telefónica Deutschland
- Three (Hi3G Ireland)
- Three (Hutchison Drei Austria)
- TIM (Telecom Italia)
- Visa
- Vodafone (Spain)
- Vodafone Ireland
- Vodafone Italia
- Vodafone Libertel
- Wind Telecomunicazioni