RCS business messaging

Fonix is a UK mobile payments and messaging company with an SMS API, carrier billing through charged SMS, and RichMessaging, its RCS product with verified branded profiles.

RCS for Business, also called RCS Business Messaging (RBM), is Google's platform for branded RCS messages to Android and iOS, used through partners or by approved partners via its API.

TrueDialog is a US business texting platform for SMS, MMS and RCS with an API and integrations for Salesforce, HubSpot, Dynamics 365, Marketo and Eloqua, on annual plans.

Pinnacle is a YC-backed messaging API for RCS, SMS, MMS and voice, with iMessage onboarded per account, SDKs in three languages, a 95-tool MCP server and HIPAA support.

SimplyRCS is a US platform from Signalmash for verified, branded RCS with SMS and MMS fallback, an AI bot builder and an API, billed per message with no platform fee.

Grupo Ótima Digital is a Brazilian communications company with RCS, SMS, WhatsApp, email and voice services and the GO360 analytics platform, sold to businesses through its sales team.

Vodafone RCS for Business is an enterprise RCS service from Vodafone Business, built on Google's RCS APIs, for branded messages to customers in Vodafone's European and African markets.

nativeMsg is a US RCS for Business platform with a no-code campaign builder, an API and MCP server, verified branded agents and SMS or MMS fallback from an included 10DLC number.

Cadence is an RCS messaging API built for AI agents: agent-initiated conversations over Google RBM with automatic SMS fallback, typed replies, a TypeScript SDK and an MCP server.