| Sub-processor Name | Sub-Processor Category | Sub-Processor Location |
| Bandwidth Inc | SMS Service Provider | USA and Canada |
| BICS SA/NV | SMS Aggregator | Belgium |
| Bouygues Telecom S.A | Network Operator | France |
| British Telecom S.A | Network Operator | United Kingdom |
| Cable and Wireless Guernsey Ltd (trading as Sure) | Network Operator | Guernsey |
| CLX Networks AB (trading as Sinch) | SMS Aggregator | Sweden |
| CM.com Netherlands B.V | SMS Aggregtor | Netherlands |
| Coeo Limited | Database Support | United Kingdom |
| Coop Italia Soc. Coop. | Virtual Network Operator | Italy |
| Databricks, Inc | Data Insights Provider | UK and Europe |
| Data Dog Inc | Server Monitoring | Europe |
| Deutsche Telekom A.G. | Network Operator | Germany |
| Eagle Eye Solutions Limited | SMS Aggregator | United Kingdom |
| EE Limited | Network Operator | United Kingdom |
| Express Teleservice Corporation (trading as Lanck Telecom) | SMS Aggregator | Cyprus |
| Fastweb S.p.A. | Virtual Network Operator | Italy |
| Free Mobile | Network Operator | France |
| Globe Teleservices Pte | SMS Aggregator | Singapore |
| High Connexion S.A.S. | SMS Aggregator | France |
| Hutchinson 3G UK Limited (trading as Three) | Network Operator | United Kingdom |
| Iliad Italia SpA | Virtual Network Operator | Italy |
| IMImobile Europe Ltd (trading as Infracast) | SMS Aggregator | United Kingdom, Germany |
| Infobip Ltd | SMS Aggregator | Croatia |
| Integrity Communications Ltd trading as Integrity360 | Security Monitoring | Europe |
| JT Limited (trading as Jersey Telecom) | Network Data Provider | Jersey |
| Just After Midnight Limited | Server Monitoring | Europe |
| Key IVR Ltd | IVR and Web Payment Provider | United Kingdom |
| Lebara Group B.V. | Virtual SMS Aggregator | Netherlands |
| MessageBird B.V. | SMS Aggregator | Netherlands |
| Microsoft Ireland Operations Limited (Microsoft Azure) | Hosting Provider | Europe |
| Mitto A.G. | SMS Aggregator | Switzerland |
| Modica Group Limited | SMS Aggregator | New Zealand |
| Mr Messaging Limited | SMS Aggregator | Malta |
| NRJ | Virtual SMS Aggregator | Netherlands |
| NTH AG | SMS Aggregator | Switzerland |
| OpenMarket Inc | SMS Aggregator | USA |
| Orange Espana | Network Operator | Spain |
| Orange S.A | Network Operator | France |
| Phonovation Ltd | SMS Aggregator | Ireland |
| Pivotel Communications PTY Limited (trading as Circuit 4) | Virtual Network Operator | Australia |
| Poste Mobile S.p.A. | Network Operator | Italy |
| The Ring Ring Company N.V. | Network Operator | Belgium |
| Route Mobile Limited | SMS Aggregator | India |
| Sky UK Limited | Virtual Network Operator | United Kingdom |
| Societe Francaise Du Radiotelephone S.A. (trading as SFR) | Network Operator | France |
| Spusu Italia Srl | Virtual Network Operator | Italy |
| SYMA | Virtual SMS Aggregator | Netherlands |
| Telefonica UK Limited (trading as O2) | Network Operator | United Kingdom |
| Telefonica de Espana S.A.U. (trading as Movistar) | Network Operator | Spain |
| Telefónica Germany GmbH & Co. OHG | Network Operator | Germany |
| Telekom Deutschland GmbH | Network Operator | Germany |
| Telstra Corporation Limited | Network Operator | Australia |
| Temporal | SMS Scheduling Support Partner | UK |
| Three Ireland (Hutchinson) Limited | Network Operator | Ireland |
| TI Sparkle SpA | SMS Aggregator | Italy |
| TIM S.p.A. | Network Operator | Italy |
| TMT Analysis Limited | Network Data Provider | United Kingdom |
| TransUnion | Network Data Provider | USA |
| Tyntec Ltd | SMS Aggregator | Germany |
| Vodafone Enterprise Global Limited | Network Operator | United Kingdom |
| Vodafone Espana S.A.U. | Network Operator | Spain |
| Vodafone GmbH | Network Operator | Germany |
| Vodafone Group plc | Network Operator | United Kingdom |
| TPG Telecom Limited | Network Operator | Australia |
| Vodafone Ireland Limited | Network Operator | United Kingdom |
| Vodafone Italia S.p.A. | Network Operator | Italy |
| Vodafone Limited | Network Operator | United Kingdom |
| Vonage Business Limited | SMS Aggregator | Europe |
| Vonage Holdings Corp. (trading as Nexmo) | SMS Aggregator | USA |
| Wind Tre S.p.A. | Network Operator | Italy |
| Zsah Limited | Patching | Europe |
