Company lists · Data refreshed September 2026

Top 25 Customer communication platforms worldwide

Name: Customer communication platforms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,855 companies tracked

RevenueBase identified 4,855 customer communication platforms worldwide as of September 2026 and tracks 431,119 professional contacts across them, including 130,341 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers customer communication platforms 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 communication platforms 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

4,855Companies

431,119Contacts tracked

130,341Verified emails

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The 25 largest customer communication platforms worldwide

Ranked by team size

Top 25 of 4,855 customer communication platforms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer communication platforms: 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	Salesforce	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	10001+	86,470 contacts →
	Strong evidence “We're the #1 AI CRM-where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.” Source: RevenueBase Database · checked Sep 28, 2026
2	Sitel Group	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	10001+	35,365 contacts →
	Partial evidence “Foundever™ is a global leader in the customer experience (CX) industry.” Source: RevenueBase Database · checked Sep 28, 2026
3	IQOR	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 28, 2026	10001+	17,310 contacts →
	Partial evidence “iQor is a trusted partner in customer experience solutions for global brands and a portfolio company of Mill Point Capital.” Source: RevenueBase Database · checked Sep 28, 2026
4	Startek	Partial evidence	Denver, United StatesHQ checked Sep 28, 2026	10001+	14,976 contacts →
	Partial evidence “A global customer experience (CX) management solutions provider, Startek® delivers best-in-class omnichannel CX, digital transformation and enterprise tech services for leading…” Source: RevenueBase Database · checked Sep 28, 2026
5	Hubspot	Strong evidence	Cambridge, MA, United StatesHQ checked Sep 28, 2026	5,001-10,000	11,077 contacts →
	Strong evidence “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Source: RevenueBase Database · checked Sep 28, 2026
6	Intouchcx	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 28, 2026	10001+	8,992 contacts →
	Indirect evidence “We are IntouchCX, where innovation meets industry, where dreamers meet doers, and where scale meets soul.” Source: RevenueBase Database · checked Sep 28, 2026
7	24 7.ai	Partial evidence	Campbell, CA, United StatesHQ checked Sep 28, 2026	10001+	8,461 contacts →
	Partial evidence “24]7.ai™ customer engagement solutions use conversational artificial intelligence to understand customer intent, enabling companies to create personalized, predictive, and…” Source: RevenueBase Database · checked Sep 28, 2026
8	Freshworks	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	7,034 contacts →
	Partial evidence “Freshworks Inc.(NASDAQ: FRSH) is the AI-powered, unified service operations platform that is fast to deploy, intuitive to use, and enables every employee to be more productive.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ringcentral	Strong evidence	Belmont, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,431 contacts →
	Strong 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
10	Twilio	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,047 contacts →
	Strong 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
11	Afni, INC	Indirect evidence	Bloomington, IL, United StatesHQ checked Sep 28, 2026	10001+	5,553 contacts →
	Indirect evidence “When people reach for their phones, use laptops, or grab their tablets, Afni's contact center teams are there to provide prompt and friendly help.” Source: RevenueBase Database · checked Sep 28, 2026
12	Fusion CX	Partial evidence	Norcross, GA, United StatesHQ checked Sep 28, 2026	10001+	4,785 contacts →
	Partial evidence “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sprinklr	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,513 contacts →
	Strong evidence “Sprinklr is the definitive, AI-native platform for Unified Customer Experience Management (Unified-CXM), empowering brands to deliver extraordinary experiences at scale, across…” Source: RevenueBase Database · checked Sep 28, 2026
14	GSS Global Sales Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	10001+	3,716 contacts →
	Indirect evidence “is a tech company specialized in providing, and for.” Source: RevenueBase Database · checked Sep 28, 2026
15	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
16	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 28, 2026
17	Five9	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,584 contacts →
	Partial evidence “Five9 provides a comprehensive suite of CX solutions, powered by Five9 Genius AI, to elevate customer experiences that deliver better business outcomes in the era of The New CX.” Source: RevenueBase Database · checked Sep 28, 2026
18	8x8	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,444 contacts →
	Indirect evidence “8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.” Source: RevenueBase Database · checked Sep 28, 2026
19	Contax S.A	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	10001+	2,114 contacts →
	Indirect evidence “Com uma vontade contagiante de fazer a diferença, a Contax é a única empresa do setor presente em toda a jornada de relacionamento do consumidor, com olhar humano e abordagem…” Source: RevenueBase Database · checked Sep 28, 2026
20	Liveops, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	n/a	2,026 contacts →
	Partial evidence “Human-Led, Tech-Powered Customer Service For over 25 years, Liveops has redefined customer support by combining technology with real human connection.” Source: RevenueBase Database · checked Sep 28, 2026
21	Quantanite	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,991 contacts →
	Partial evidence “We believe customers and employees should be looked after, and every interaction is an opportunity for a conversation and to learn more about them.” Source: RevenueBase Database · checked Sep 28, 2026
22	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
23	Op360 Officepartners360	Partial evidence	Ridgefield, CT, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,777 contacts →
	Partial evidence “OP360, part of iQor CXBPO™, is a trusted partner in intelligent customer experience solutions for global brands.” Source: RevenueBase Database · checked Sep 28, 2026
24	Technotask Business Solutions PVT LTD	Partial evidence	Bhopal, IndiaHQ checked Sep 28, 2026	1,001-5,000	1,762 contacts →
	Partial evidence “Transforming Customer Experiences Worldwide** At Technotask, we've embarked on a journey of exponential growth and innovation since our inception in March 2020.” Source: RevenueBase Database · checked Sep 28, 2026
25	Support Services Group	Partial evidence	Waco, TX, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,710 contacts →
	Partial evidence “Support Services Group (SSG) helps businesses accelerate growth and earn customers for life through high-touch, outsourced engagement center services.” 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 communication platforms. 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 communication platforms.
Partial evidence: Its own public description names part of customer communication platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer communication platforms. 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 4,855 customer communication platforms worldwide

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Customer communication platforms worldwide at a glance

As of Sep 28, 2026

30.2%Verified-email coverage

88.8Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,918

11-50

1,753

51-200

720

201-500

229

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 communication platforms, 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 communication platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “customer communication platforms”. 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 communication platforms), 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 communication platforms, 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, 130,341 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 communication platforms by location

38 lists · largest first

Every Customer communication platforms 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 communication platforms, 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 communication platforms are there worldwide?

RevenueBase identified 4,855 customer communication platforms 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?

Salesforce, headquartered in San Francisco, tops this list with the largest team on record.

Which country has the most customer communication platforms?

The United States leads with 825 companies, followed by Brazil (480) and India (434). Every customer communication platforms list by country and city is linked on this page.

Which city has the most customer communication platforms?

Sao Paulo leads with 145 headquartered companies, followed by London (94) and New York (54).

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 130,341 verified decision-maker contacts tracked across these 4,855 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.