Company lists · Data refreshed September 2026
Top 25 Messaging platform companies based in the United States
RevenueBase identified 264 messaging platform companies headquartered in the United States as of September 2026 and tracks 15,334 professional contacts across them, including 4,871 with verified work emails and 4,519 with mobile numbers. San Francisco is the largest hub.
This list covers messaging platform companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest messaging platform companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,047 | ||||
“Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,394 | ||||
“WhatsApp is a fast, simple and reliable way to talk to anyone in the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,287 | ||||
“Attentive® knows personalized customer experiences require both powerful technology and the right people behind it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 516 | ||||
“Agora (NASDAQ: API) is the global leader in real-time engagement, providing developers with simple, flexible, and powerful APIs to embed real-time conversational AI, voice, video…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 408 | ||||
“zuku is a US-based company that lets you use mobile messaging to build a private network of the people that are important to you and your organization.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 327 | ||||
“We've moved pages.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | SendbirdIndirect evidence | 297 | |||
“Sendbird is the AI customer experience company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 270 | ||||
“The Firstup Intelligent Communication Platform equips organizations to improve productivity, retention, labor efficiency, safety compliance, and revenue performance by activating…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 267 | ||||
“We enable businesses to drive engagement, revenue, and loyalty with AI-powered chat commerce.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 237 | ||||
“We solve a critical gap businesses face with employee to client communication, over voice and messaging.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 237 | ||||
“Courier is the customer messaging and notifications platform where your team and AI agents collaborate.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 194 | ||||
“Voximplant versatile cloud platform enables business to bring interaction to a different level.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 183 | ||||
“SBT helps businesses in regulated industries turn consumer intent into completed action.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 139 | ||||
“Kipsu is pioneering a software-based solution designed to revolutionize how service-driven brands interact with consumers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 130 | ||||
“tawk.to makes it easy for over six million people to communicate and transact with billions of customers, no matter where they are or how they pay.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | Kika Tech, INCIndirect evidence | 110 | |||
“Kika's mission is to revolutionize how the world communicates and make it easier, faster, and more expressive.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 89 | ||||
“Finishing your product shouldn’t be harder than building it.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | LINQIndirect evidence | 82 | |||
“Linq is the infrastructure to build AI agents in iMessage, covering a suite of enterprise-ready APIs for iMessage, SMS, RCS and voice channels, built for engineers and product…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 72 | ||||
“Community helps marketing teams build trust, loyalty, and long-term customer value through personalized, two-way conversations with their audiences.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | PaasooIndirect evidence | 69 | |||
“In today’s world, connectivity is the key to your business, and we understand how important it is to you.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 65 | ||||
“Business Class Team Texting to help Sales and Service Teams!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | QUIQIndirect evidence | 60 | |||
“Quiq is a leading technology company based in Bozeman, Montana that makes it easy for people to have a conversation with a company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 58 | ||||
“Conversation builds relationship.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | Text RequestPartial evidence | 55 | |||
“Text Request, an Esendex company, is the business texting platform built to ignite customer engagement.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | WebarooIndirect evidence | 51 | |||
“Webaroo Inc.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 264 messaging platform companies based in the United States
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Messaging platform companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among messaging platform companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “messaging platform companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among messaging platform companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 4,871 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Messaging platform companies by metro
- Messaging platform companies in San Francisco30
Frequently asked
How many messaging platform companies are there based in the United States?
RevenueBase identified 264 messaging platform companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Twilio, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most messaging platform companies?
San Francisco leads with 30 headquartered companies, followed by New York (24) and Palo Alto (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,871 verified decision-maker contacts tracked across these 264 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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