Company lists · Data refreshed September 2026

Top 25 Customer communications software companies worldwide

Name: Customer communications software companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,635 companies tracked

RevenueBase identified 1,635 customer communications software companies worldwide as of September 2026 and tracks 64,925 professional contacts across them, including 25,931 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers customer communications software companies worldwide, 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. Country and city lists for customer communications software companies follow the table.

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

1,635Companies

64,925Contacts tracked

25,931Verified emails

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The 25 largest customer communications software companies worldwide

Ranked by team size

Top 25 of 1,635 customer communications software companies worldwide, 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	Quadient	Partial evidence	Bagneux, FranceHQ checked Sep 28, 2026	1,001-5,000	3,472 contacts →
	Partial evidence “Quadient designs and builds human-centered, AI-driven automation solutions for business communications.” Source: RevenueBase Database · checked Sep 28, 2026
4	Infobip	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,309 contacts →
	Partial evidence “Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and…” Source: RevenueBase Database · checked Sep 28, 2026
5	SINCH	Partial evidence	Stockholm, SwedenHQ checked Sep 28, 2026	1,001-5,000	2,934 contacts →
	Partial evidence “Sinch’s vision is to connect every business with every customer, everywhere in the world.” Source: RevenueBase Database · checked Sep 28, 2026
6	Actionline	Partial evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,921 contacts →
	Partial evidence “Actionline is dedicated to connecting brands with their customers, strengthening their presence and value at every touchpoint.” Source: RevenueBase Database · checked Sep 28, 2026
7	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
8	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
9	Emarsys	Partial evidence	Vienna, GermanyHQ checked Sep 28, 2026	501-1,000	831 contacts →
	Partial evidence “SAP Engagement Cloud (formerly SAP Emarsys) helps organizations power unique engagement by connecting real-time customer insights with the operational signals that run the…” Source: RevenueBase Database · checked Sep 28, 2026
10	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
11	Zenvia	Partial evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	787 contacts →
	Partial evidence “Proporcione experiências pessoais, envolventes e fluidas com o poder de Zenvia Customer Cloud, nossa IA completa que revolucionará a jornada dos seus clientes.” Source: RevenueBase Database · checked Sep 28, 2026
12	Vendasta	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 28, 2026	501-1,000	771 contacts →
	Strong evidence “Vendasta is the leading AI software company for customer acquisition and engagement, helping businesses get more customers.” Source: RevenueBase Database · checked Sep 28, 2026
13	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
14	cm.com	Strong evidence	Breda, NetherlandsHQ checked Sep 28, 2026	1,001-5,000	705 contacts →
	Strong evidence “CM.com (AMS: CMCOM) is a leading European technology company that helps organizations worldwide improve customer interactions through integrated solutions for communications…” Source: RevenueBase Database · checked Sep 28, 2026
15	Exotel	Partial evidence	Bangalore, IndiaHQ checked Sep 28, 2026	1,001-5,000	691 contacts →
	Partial evidence “Exotel is your AI transformation partner for customer engagement and experience.” Source: RevenueBase Database · checked Sep 28, 2026
16	Postnord Strålfors	Strong evidence	Stockholm, SwedenHQ checked Sep 28, 2026	501-1,000	560 contacts →
	Strong evidence “PostNord Strålfors simplifies the communication of invoices and vital business information between companies and their customers and partners.” Source: RevenueBase Database · checked Sep 28, 2026
17	Moneypenny	Partial evidence	Wrexham, United KingdomHQ checked Sep 28, 2026	1,001-5,000	530 contacts →
	Partial evidence “Moneypenny is the leading customer conversations partner to businesses across the UK and US, blending exceptional people with proprietary AI technology to deliver trusted caller…” Source: RevenueBase Database · checked Sep 28, 2026
18	RESQ	Partial evidence	Kingston Upon Hull, United KingdomHQ checked Sep 28, 2026	1,001-5,000	490 contacts →
	Partial evidence “Give your customers a voice with ResQ.” Source: RevenueBase Database · checked Sep 28, 2026
19	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
20	Omilia	Partial evidence	Larnaca, CyprusHQ checked Sep 28, 2026	201-500	438 contacts →
	Partial evidence “Omilia is the global standard for AI-driven customer service transformation.” Source: RevenueBase Database · checked Sep 28, 2026
21	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
22	Imimobile Part Of Webex	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	433 contacts →
	Indirect evidence “We've moved!” Source: RevenueBase Database · checked Sep 28, 2026
23	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
24	Lime Technologies	Partial evidence	Lund, SwedenHQ checked Sep 28, 2026	201-500	399 contacts →
	Partial evidence “Lime is the Customer Journey platform that helps companies make their customers fall in love with them.” Source: RevenueBase Database · checked Sep 28, 2026
25	Scooto	Partial evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	201-500	359 contacts →
	Partial evidence “SCOOTO was created to solve customer services for growing companies who lose control over their customers once they start to grow.” 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 1,635 customer communications software companies worldwide

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Customer communications software companies worldwide at a glance

As of Sep 28, 2026

39.9%Verified-email coverage

39.7Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

636

11-50

607

51-200

262

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for customer communications software companies are linked below.
What qualifies: Companies worldwide 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.
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, 25,931 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.

Customer communications software companies by location

11 lists · largest first

Every Customer communications software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 1,635 customer communications software companies worldwide 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 country has the most customer communications software companies?

The United States leads with 300 companies, followed by Brazil (200) and India (112). Every customer communications software companies list by country and city is linked on this page.

Which city has the most customer communications software companies?

Sao Paulo leads with 60 headquartered companies, followed by London (35) and New York (23).

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 25,931 verified decision-maker contacts tracked across these 1,635 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.