Company lists · Data refreshed September 2026

Top 25 Omnichannel messaging platform companies based in the United States

Name: Omnichannel messaging platform companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 584 companies tracked

RevenueBase identified 584 omnichannel messaging platform companies headquartered in the United States as of September 2026 and tracks 29,869 professional contacts across them, including 12,669 with verified work emails. New York is the largest hub.

This list covers omnichannel 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

584Companies

29,869Contacts tracked

12,669Verified emails

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The 25 largest omnichannel messaging platform companies based in the United States

Ranked by team size

Top 25 of 584 omnichannel messaging platform companies based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to omnichannel messaging platform companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Ringcentral	Partial evidence	Belmont, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,431 contacts →
	Partial evidence “RingCentral, Inc.(NYSE: RNG) is a global leader in AI–powered customer engagement, delivering an integrated platform for business phone, SMS, contact center, workforce engagement…” Source: RevenueBase Database · checked Sep 29, 2026
2	Twilio	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,047 contacts →
	Partial evidence “Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.” Source: RevenueBase Database · checked Sep 29, 2026
3	BRAZE	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,142 contacts →
	Partial evidence “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Source: RevenueBase Database · checked Sep 29, 2026
4	Attentive	Indirect evidence	New York, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,287 contacts →
	Indirect evidence “Attentive® knows personalized customer experiences require both powerful technology and the right people behind it.” Source: RevenueBase Database · checked Sep 29, 2026
5	Aircall	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	804 contacts →
	Partial evidence “The collaborative, AI-powered platform for customer conversations.” Source: RevenueBase Database · checked Sep 29, 2026
6	Khoros	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	501-1,000	763 contacts →
	Indirect evidence “Khoros' award-winning enterprise software makes it easier for complex brands to engage with customers at scale across digital, social, and brand-owned channels.” Source: RevenueBase Database · checked Sep 29, 2026
7	SKAI	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	551 contacts →
	Strong evidence “Skai is the leading omnichannel platform for commerce media, enabling brands and agencies to connect data, insights, and execution across the world’s largest publishers and…” Source: RevenueBase Database · checked Sep 29, 2026
8	Acoustic	Indirect evidence	Conway, AR, United StatesHQ checked Sep 29, 2026	501-1,000	539 contacts →
	Indirect evidence “Acoustic, L.P.” Source: RevenueBase Database · checked Sep 29, 2026
9	Symphony	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	490 contacts →
	Strong evidence “Symphony is an AI-powered communication and technology company fueled by interconnected platforms: Messaging, Voice, Directory and Analytics.” Source: RevenueBase Database · checked Sep 29, 2026
10	customer.io	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	201-500	446 contacts →
	Partial evidence “Create personalized customer journeys that engage and convert with our versatile customer engagement platform.” Source: RevenueBase Database · checked Sep 29, 2026
11	ZUKU	Partial evidence	Madison, CT, United StatesHQ checked Sep 29, 2026	n/a	408 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 29, 2026
12	Inteliquent, A Sinch Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	327 contacts →
	Indirect evidence “We've moved pages.” Source: RevenueBase Database · checked Sep 29, 2026
13	Sendbird	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 29, 2026	201-500	297 contacts →
	Indirect evidence “Sendbird is the AI customer experience company.” Source: RevenueBase Database · checked Sep 29, 2026
14	Sms-Magic	Partial evidence	Henderson, NV, United StatesHQ checked Sep 29, 2026	51-200	293 contacts →
	Partial evidence “Conversive is the world’s first Intelligent & Empathetic Conversations AI Platform, redefining how businesses engage customers in life-changing decisions with trust, care, and…” Source: RevenueBase Database · checked Sep 29, 2026
15	Ultatel	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 29, 2026	51-200	285 contacts →
	Indirect evidence “Ultatel delivers a powerful yet easy-to-use cloud communications suite that scales with your business-combining voice, SMS, chat, video, online fax, and contact center…” Source: RevenueBase Database · checked Sep 29, 2026
16	Firstup	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	270 contacts →
	Partial evidence “The Firstup Intelligent Communication Platform equips organizations to improve productivity, retention, labor efficiency, safety compliance, and revenue performance by activating…” Source: RevenueBase Database · checked Sep 29, 2026
17	Clickatell	Indirect evidence	Downtown Redwood City, CA, United StatesHQ checked Sep 29, 2026	201-500	267 contacts →
	Indirect evidence “We enable businesses to drive engagement, revenue, and loyalty with AI-powered chat commerce.” Source: RevenueBase Database · checked Sep 29, 2026
18	Movius	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	51-200	237 contacts →
	Partial evidence “We solve a critical gap businesses face with employee to client communication, over voice and messaging.” Source: RevenueBase Database · checked Sep 29, 2026
19	VIBES	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	51-200	237 contacts →
	Partial evidence “Vibes’ mobile-first platform creates personal, revenue-driving and long-term mobile engagement between consumers and the world-class brands they love.” Source: RevenueBase Database · checked Sep 29, 2026
20	Courier	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	n/a	237 contacts →
	Strong evidence “Courier is the customer messaging and notifications platform where your team and AI agents collaborate.” Source: RevenueBase Database · checked Sep 29, 2026
21	Sentext	Partial evidence	Milford, CT, United StatesHQ checked Sep 29, 2026	501-1,000	230 contacts →
	Partial evidence “SenText provides SMS/Text/ Mobile Messaging and Marketing Services that enable Businesses and Organizations to send Permission Based SMS Text instantly to their audience.” Source: RevenueBase Database · checked Sep 29, 2026
22	Botmaker	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	51-200	206 contacts →
	Partial evidence “Botmaker is the most advanced conversational platform that allows you to give smart and fast answers to your customers in all digital channels.” Source: RevenueBase Database · checked Sep 29, 2026
23	Remarkable AI	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	197 contacts →
	Indirect evidence “Our mission is to solve customer experience.” Source: RevenueBase Database · checked Sep 29, 2026
24	Onesignal	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 29, 2026	51-200	191 contacts →
	Strong evidence “OneSignal is the leading customer engagement platform for push, email, SMS/RCS, and in-app messaging.” Source: RevenueBase Database · checked Sep 29, 2026
25	Novelvox	Indirect evidence	Roswell, GA, United StatesHQ checked Sep 29, 2026	51-200	187 contacts →
	Indirect evidence “NovelVox is the execution layer for regulated CX.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: omnichannel messaging platform companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names omnichannel messaging platform companies.
Partial evidence: Its own public description names part of omnichannel messaging platform companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name omnichannel messaging platform companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 584 omnichannel messaging platform companies based in the United States

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Omnichannel messaging platform companies based in the United States at a glance

As of Sep 29, 2026

42.4%Verified-email coverage

51.1Average contacts per company

11-50Median size (employees)

8.4%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

227

11-50

247

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 584 companies.

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 omnichannel messaging platform companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “omnichannel messaging platform companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names omnichannel messaging platform companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among omnichannel 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 its RevenueBase Smart Search 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, 12,669 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 29, 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.

Omnichannel messaging platform companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names omnichannel messaging platform companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many omnichannel messaging platform companies are there based in the United States?

RevenueBase identified 584 omnichannel 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?

Ringcentral, headquartered in Belmont, tops this list with the largest team on record.

Which city has the most omnichannel messaging platform companies?

New York leads with 49 headquartered companies, followed by San Francisco (35) and Miami (14).

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 12,669 verified decision-maker contacts tracked across these 584 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 29, 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 Smart Search, 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.