Company lists · Data refreshed September 2026

Top 25 Customer communications software companies based in the United States

Name: Customer communications software 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 28, 2026 300 companies tracked

RevenueBase identified 300 customer communications software companies headquartered in the United States as of September 2026 and tracks 23,890 professional contacts across them, including 10,823 with verified work emails. New York is the largest hub.

This list covers customer communications software 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 28, 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 28, 2026 86% judged on-target in blind review

300Companies

23,890Contacts tracked

10,823Verified emails

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The 25 largest customer communications software companies based in the United States

Ranked by team size

Top 25 of 300 customer communications software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer communications software 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 28, 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 28, 2026
2	Twilio	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 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 28, 2026
3	Nextiva	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,638 contacts →
	Partial evidence “Build amazing customer experiences with Nextiva’s AI-powered platform.” Source: RevenueBase Database · checked Sep 28, 2026
4	Dialpad	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,473 contacts →
	Partial evidence “Dialpad is the leading AI-powered communications intelligence platform creating human-first, AI-enhanced solutions that will drive the next wave of how businesses communicate with…” Source: RevenueBase Database · checked Sep 28, 2026
5	Aircall	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	804 contacts →
	Partial evidence “The collaborative, AI-powered platform for customer conversations.” Source: RevenueBase Database · checked Sep 28, 2026
6	Khoros	Strong evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	763 contacts →
	Strong 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 28, 2026
7	Saas Labs	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	201-500	448 contacts →
	Indirect evidence “SaaS Labs is all about helping sales and support teams reach their full potential.” Source: RevenueBase Database · checked Sep 28, 2026
8	DOXIM	Strong evidence	Troy, MI, United StatesHQ checked Sep 28, 2026	501-1,000	436 contacts →
	Strong evidence “Doxim is the customer communications management and engagement technology leader serving highly regulated markets, including financial services, utilities and healthcare.” Source: RevenueBase Database · checked Sep 28, 2026
9	O'neil Digital Solutions	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	201-500	421 contacts →
	Strong evidence “O’Neil Digital Solutions is a customer communication management (CCM) and CX technology provider serving healthcare and financial services organizations, specializing in…” Source: RevenueBase Database · checked Sep 28, 2026
10	Sendbird	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	201-500	297 contacts →
	Partial evidence “Sendbird is the AI customer experience company.” Source: RevenueBase Database · checked Sep 28, 2026
11	OSG	Strong evidence	Carol Stream, IL, United StatesHQ checked Sep 28, 2026	501-1,000	295 contacts →
	Strong evidence “OSG delivers leading Customer Communications Management (CCM) solutions providing multichannel communications that drive customer engagement.” Source: RevenueBase Database · checked Sep 28, 2026
12	Genesys Interactive Intelligence	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 28, 2026	1,001-5,000	275 contacts →
	Indirect evidence “Genesys acquired Interactive Intelligence in December 2016.” Source: RevenueBase Database · checked Sep 28, 2026
13	Kustomer	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	259 contacts →
	Partial evidence “Kustomer is the Intelligent Customer Experience Platform empowering brands to put customers at the center of every interaction.” Source: RevenueBase Database · checked Sep 28, 2026
14	Netomi	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	201-500	241 contacts →
	Indirect evidence “Netomi is the enterprise agentic CX platform built for the world's most complex environments.” Source: RevenueBase Database · checked Sep 28, 2026
15	Movius	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 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 28, 2026
16	Leapxpert	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	179 contacts →
	Partial evidence “LeapXpert is the leader in Responsible Business Communication.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cordial	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	155 contacts →
	Partial evidence “Cordial automates billions of data-driven, cross-channel messages to create lifetime customer connections for leading companies.” Source: RevenueBase Database · checked Sep 28, 2026
18	KIPSU	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	51-200	139 contacts →
	Partial evidence “Kipsu is pioneering a software-based solution designed to revolutionize how service-driven brands interact with consumers.” Source: RevenueBase Database · checked Sep 28, 2026
19	HATCH	Strong evidence	New York, MA, United StatesHQ checked Sep 28, 2026	51-200	137 contacts →
	Strong evidence “Hatch is an AI CSR platform that empowers businesses to scale revenue through better customer communication.” Source: RevenueBase Database · checked Sep 28, 2026
20	tawk.to	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	201-500	130 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
21	MPX	Strong evidence	Portland, ME, United StatesHQ checked Sep 28, 2026	11-50	107 contacts →
	Strong evidence “MPX is a trusted leader in Customer Communication Management for regulated industries, backed by 80+ years of expertise in secure, compliant communications.” Source: RevenueBase Database · checked Sep 28, 2026
22	Bright Pattern	Indirect evidence	South San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect evidence “At Bright Pattern, we're paving the way for the future of contact center technology.” Source: RevenueBase Database · checked Sep 28, 2026
23	Powerfront	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	98 contacts →
	Partial evidence “Powerfront is a leading provider of customer engagement technology and solutions.” Source: RevenueBase Database · checked Sep 28, 2026
24	Indigitall	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	51-200	92 contacts →
	Partial evidence “indigitall is the only AI-Powered Customer Engagement Platform that empowers brands to efficiently create and manage personalized inbound and outbound customer interactions across…” Source: RevenueBase Database · checked Sep 28, 2026
25	Nordis Technologies	Strong evidence	Coral Springs, FL, United StatesHQ checked Sep 28, 2026	51-200	91 contacts →
	Strong evidence “Nordis Technologies is a leader in cloud-based, omnichannel customer communications management technology, integrated with digital delivery, print and mail services and payment…” Source: RevenueBase Database · checked Sep 28, 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: customer communications software 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 customer communications software companies.
Partial evidence: Its own public description names part of customer communications software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer communications software 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 300 customer communications software companies based in the United States

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Customer communications software companies based in the United States at a glance

As of Sep 28, 2026

45.3%Verified-email coverage

79.6Average contacts per company

11-50Median size (employees)

7.7%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

102

11-50

116

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 300 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 customer communications software 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 “customer communications software 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 customer communications software 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 customer communications software 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, 10,823 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 28, 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.

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 customer communications software 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 customer communications software companies are there based in the United States?

RevenueBase identified 300 customer communications software 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 customer communications software companies?

New York leads with 23 headquartered companies, followed by San Francisco (18) and Austin (9).

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 10,823 verified decision-maker contacts tracked across these 300 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 28, 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.