cpaas
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The Quiet Infrastructure Behind 15 Billion Customer Connections
Every OTP, delivery alert and WhatsApp reply looks simple on a phone. CEQUENS has spent 15 years making the carrier routes, compliance rules and software behind those moments disappear.
RingCentral
The company that dragged the office phone into the cloud is now betting the whole switchboard on AI agents that answer, route, and read the room.
8x8
One company built its whole pitch on erasing the line between the phone on your desk and the call center that answers your customers. Here is how 8x8 turned four decades of telephony into an AI-driven customer-experience platform.
Sinch
The Swedish company you have never heard of sends the one-time passcodes, delivery alerts and marketing texts that reach your phone billions of times a day. This is how Sinch turned invisible infrastructure into a global business.
Infobip
How a self-funded SMS gateway from a Croatian fishing town became the plumbing behind hundreds of billions of texts, WhatsApp messages and login codes.
Gupshup
It spent nearly two decades sending text messages nobody thought about. Now Gupshup wants those same pipes to carry AI agents that sell, support and close - one conversation at a time.
Bird
The Dutch company that rebuilt telecom's plumbing now carries a claimed 40% of the world's commercial messages - and spent two years trying to delete Twilio's margins with a 90% price cut. Bird's next bet is that the software placing those calls will be an AI agent, not a marketer.
AVOXI
AVOXI delivers unmatched cloud voice coverage that's orchestrated by software. It's the only platform you'll ever need.
Vonage
Vonage is a cloud communications company that lets businesses and developers add voice, video, SMS, messaging and network-based verification to their apps and customer operations. Once a pioneer of home internet phone service, it reinvented itself as a platform business built on APIs, unified communications and contact-center software, and is now a wholly owned subsidiary of Ericsson operating as its Global Communications Platform.
Twilio
Twilio is a cloud communications company that gives software developers programmable APIs to add messaging, voice, email, video, and authentication to their applications. Founded in 2008 and headquartered in San Francisco, it has grown from a pay-as-you-go SMS and voice API into a broad customer-engagement platform that pairs those channels with Segment's customer data platform and a growing set of AI-driven tools. Twilio is publicly traded on the NYSE under the ticker TWLO and serves developers and enterprises across nearly every industry.
Wati
Wati is an AI-powered customer engagement platform built on the WhatsApp Business API. Founded in 2020, it gives small and medium businesses a low-code way to run marketing, sales, and support conversations at scale - a shared team inbox, no-code chatbot builder, broadcast campaigns, and AI support agents trained on a company's own documents. Wati serves more than 16,000 businesses across 100+ countries and is backed by Tiger Global, Sequoia, DST Global, and Shopify.
Telerivet
Telerivet is a cloud communications platform that lets organizations send, automate, and orchestrate messages across SMS, WhatsApp, Voice, USSD, Viber and more - in any market, including the places bigger providers ignore. Born from a Peace Corps insight in Tanzania that most people have a phone but not the internet, it now powers enterprises, governments, NGOs and universities across 150+ countries with a drag-and-drop rules engine, APIs, and a phone-as-gateway model that reaches customers where the network is thin.
Clickatell
Clickatell is a chat commerce and messaging platform that helps brands talk to and transact with customers across SMS, WhatsApp and other channels. Founded in 2000 in Cape Town, it was the first company to wire businesses on the internet to consumers on mobile phones using SMS in four lines of code. Twenty-five years later it powers chat banking, tokenized WhatsApp payments and Chat-2-Pay with Visa for over 10,000 customers worldwide.
Agora
Agora is a real-time engagement platform that gives developers simple APIs and SDKs to embed live voice, video, interactive streaming, chat, and conversational AI into apps and devices. Trusted by more than 1,700 organizations across social, live shopping, education, telehealth, and gaming, Agora's network reaches devices worldwide with sub-second latency. The company trades on Nasdaq under the ticker API.
Sendbird
Sendbird is a San Mateo-based communications platform that started as a chat SDK for apps and has become an omnichannel AI agent platform. Its APIs power messaging, voice, video, and AI agents inside more than 4,000 apps, including DoorDash, Reddit, Match Group, Noom, and Yahoo Sports, reaching roughly 6 billion users and routing 7 billion conversations a month.
Voximplant
Voximplant is a cloud communications and voice AI orchestration platform that lets developers and enterprises add programmable voice, video, messaging and AI agents to their apps without managing telecom infrastructure. Spun out of click-to-call pioneer Zingaya, it powers billions of calls a year for brands like Hyundai, Burger King, KFC, Glovo and Rappi.