Company lists · Data refreshed September 2026

Top 25 Omnichannel communication platforms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 3,067 companies tracked

RevenueBase identified 3,067 omnichannel communication platforms worldwide as of September 2026 and tracks 247,368 professional contacts across them, including 49,117 with verified work emails and 26,042 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers omnichannel 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 5, 2026. Country and city lists for omnichannel 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 5, 2026 86% judged on-target in blind review

3,067Companies

247,368Contacts tracked

49,117Verified emails

26,042Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest omnichannel communication platforms worldwide

Ranked by team size

Top 25 of 3,067 omnichannel communication platforms worldwide, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to omnichannel 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	Sitel Group	Indirect evidence	Miami, FL, United StatesHQ checked Sep 5, 2026	10001+	35,365 contacts →
	Indirect evidence “Foundever™ is a global leader in the customer experience (CX) industry.” Source: RevenueBase Database · checked Sep 5, 2026
2	AVAYA	Indirect evidence	Morristown, NJ, United StatesHQ checked Sep 5, 2026	5,001-10,000	10,510 contacts →
	Indirect evidence “At Avaya, we give our customers the freedom to take their business in the directions that benefit them most.” Source: RevenueBase Database · checked Sep 5, 2026
3	Cogent E Services	Indirect evidence	Noida, IndiaHQ checked Sep 5, 2026	10001+	7,313 contacts →
	Indirect evidence “We are an end-to-end Customer Experience (CX) solutions provider offering omni-channel solutions along various customer interaction touch-points from customer sales and support…” Source: RevenueBase Database · checked Sep 5, 2026
4	Ringcentral	Partial evidence	Belmont, CA, United StatesHQ checked Sep 5, 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 5, 2026
5	Twilio	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 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 5, 2026
6	Afni, INC	Indirect evidence	Bloomington, IL, United StatesHQ checked Sep 5, 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 5, 2026
7	Fusion CX	Indirect evidence	Norcross, GA, United StatesHQ checked Sep 5, 2026	10001+	4,785 contacts →
	Indirect evidence “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Source: RevenueBase Database · checked Sep 5, 2026
8	Harte Hanks	Partial evidence	Chelmsford, MA, United StatesHQ checked Sep 5, 2026	1,001-5,000	3,901 contacts →
	Partial evidence “We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.” Source: RevenueBase Database · checked Sep 5, 2026
9	MITEL	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 5, 2026	1,001-5,000	3,442 contacts →
	Indirect evidence “Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers.” Source: RevenueBase Database · checked Sep 5, 2026
10	Infobip	Partial evidence	London, United KingdomHQ checked Sep 5, 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 5, 2026
11	SINCH	Indirect evidence	Stockholm, SwedenHQ checked Sep 5, 2026	1,001-5,000	2,934 contacts →
	Indirect evidence “Sinch’s vision is to connect every business with every customer, everywhere in the world.” Source: RevenueBase Database · checked Sep 5, 2026
12	Covisian	Indirect evidence	Milano, ItalyHQ checked Sep 5, 2026	10001+	2,810 contacts →
	Indirect evidence “is a tech company specialized in providing, and for & customer care.” Source: RevenueBase Database · checked Sep 5, 2026
13	Five9	Indirect evidence	San Ramon, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,584 contacts →
	Indirect 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 5, 2026
14	Diversified	Indirect evidence	Plano, TX, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,523 contacts →
	Indirect evidence “At Diversified, we leverage the best in technology and ongoing advisory services to transform businesses.” Source: RevenueBase Database · checked Sep 5, 2026
15	8x8	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 5, 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 5, 2026
16	Contax S.A	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 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 5, 2026
17	Liveops, INC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	n/a	2,026 contacts →
	Indirect 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 5, 2026
18	Quantanite	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,991 contacts →
	Indirect 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 5, 2026
19	Sykes Philippines	Indirect evidence	Makati City, PhilippinesHQ checked Sep 5, 2026	10001+	1,990 contacts →
	Indirect evidence “Sitel Philippines (formerly SYKES).” Source: RevenueBase Database · checked Sep 5, 2026
20	Actionline	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 5, 2026	1,001-5,000	1,921 contacts →
	Indirect evidence “Actionline is dedicated to connecting brands with their customers, strengthening their presence and value at every touchpoint.” Source: RevenueBase Database · checked Sep 5, 2026
21	Infocision Management Corporation	Indirect evidence	Akron, OH, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,764 contacts →
	Indirect evidence “InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Source: RevenueBase Database · checked Sep 5, 2026
22	Technotask Business Solutions PVT LTD	Indirect evidence	Bhopal, IndiaHQ checked Sep 5, 2026	1,001-5,000	1,762 contacts →
	Indirect 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 5, 2026
23	Support Services Group	Indirect evidence	Waco, TX, United StatesHQ checked Sep 5, 2026	5,001-10,000	1,710 contacts →
	Indirect 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 5, 2026
24	Nextiva	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 5, 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 5, 2026
25	Dialpad	Strong evidence	San Ramon, CA, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,473 contacts →
	Strong 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 5, 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 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 omnichannel communication platforms.
Partial evidence: Its own public description names part of omnichannel communication platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name omnichannel 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 3,067 omnichannel communication platforms worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 49,117 reachable decision-makers.

Free signup · no credit card

View the full list →

Omnichannel communication platforms worldwide at a glance

As of Sep 5, 2026

19.9%Verified-email coverage

10.5%Mobile-number coverage

80.7Average contacts per company

11-50Median size (employees)

5.0%Largest-city concentration · Sao Paulo

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

904

11-50

1,184

51-200

592

201-500

180

501-1,000

1,001-5,000

5,001-10,000

10001+

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 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: 23 countries, largest first: the United States, Brazil, India, the United Kingdom, Germany, the Netherlands, France, Canada, Mexico, Australia and 13 more. Country and city lists for omnichannel communication platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “omnichannel 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 omnichannel 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 omnichannel 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, 49,117 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 between September 5, 2026 and September 14, 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 communication platforms by location

33 lists · largest first

Every Omnichannel 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 omnichannel 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 omnichannel communication platforms are there worldwide?

RevenueBase identified 3,067 omnichannel 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?

Sitel Group, headquartered in Miami, tops this list with the largest team on record.

Which country has the most omnichannel communication platforms?

The United States leads with 759 companies, followed by Brazil (472) and India (383). Every omnichannel communication platforms list by country and city is linked on this page.

Which city has the most omnichannel communication platforms?

Sao Paulo leads with 153 headquartered companies, followed by London (82) and Singapore (47).

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 49,117 verified decision-maker contacts tracked across these 3,067 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 5, 2026 and September 14, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,067 omnichannel communication platforms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.