The ecosystem
72 listings — providers, platforms and apps — each described with the same attributes and measured by the same rules. Added by the cpaas.co team or submitted by the community.
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AWS's messaging building blocks: SMS, voice messages, WhatsApp, RCS and push through End User Messaging, and email through Amazon SES.
Microsoft's communications APIs on Azure: voice and video calling, chat, SMS, email and WhatsApp, with Teams interoperability.
Carrier-grade voice and messaging on an owned network, widely used to bring phone numbers into Teams and Zoom.
Founded in Amsterdam as MessageBird; rebranded and repositioned around marketing, inbox and published per-message prices.
Full-stack CPaaS with owned interconnect and a contact centre suite alongside the API.
Developer-first SMS, voice and verification APIs with published pricing and a lean feature set.
Messaging, voice and verification at carrier scale, assembled substantially through acquisition.
A licensed carrier running its own private network, with messaging, voice, SIP trunking and voice-AI agents on top.
Programmable messaging, voice, video and email APIs with per-country published pricing.
Messaging, voice, video and verification APIs, now part of Ericsson, with a contact-centre product alongside.
German WhatsApp Business Solution Provider selling direct access to the WhatsApp Business API for a monthly licence per number.
Nasdaq-listed real-time engagement platform: video and voice calling, live streaming, chat and a conversational AI engine, as SDKs and APIs.
Open-source WebRTC infrastructure for real-time video, voice and data, self-hostable or managed.
Zoom's video and audio engine as an SDK, for building custom-branded video sessions inside your own web and mobile apps.
Enterprise cloud contact centre for voice and digital channels, with routing, workforce engagement and AI agents, from a company founded in 1990.
Customer-service suite whose messaging brings web, in-app and social channels into the same agent workspace as email tickets.
Verification, fraud-signal and messaging APIs, part of Proximus Global alongside Route Mobile and BICS.
Email API for sending, receiving and tracking transactional and bulk email, owned by Sinch since December 2021.
Chat API and SDKs, in-app voice and video calls, and an AI customer-service agent (now Delight.ai) working across chat, SMS, email, WhatsApp and voice.
APIs and SDKs for in-app chat, audio and video calling, activity feeds and moderation, from a Boulder-based company founded in the Netherlands.
72 listings, each classified on the same three lenses and six criteria. Inclusion is editorial and cannot be bought. Know a vendor we should assess? Suggest it.