Company lists · Data refreshed September 2026

Top 25 Omnichannel customer engagement platforms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,381 companies tracked

RevenueBase identified 4,381 omnichannel customer engagement platforms worldwide as of September 2026 and tracks 368,182 professional contacts across them, including 82,356 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers omnichannel customer engagement 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 29, 2026. Country and city lists for omnichannel customer engagement 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 29, 2026 86% judged on-target in blind review

4,381Companies

368,182Contacts tracked

82,356Verified emails

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The 25 largest omnichannel customer engagement platforms worldwide

Ranked by team size

Top 25 of 4,381 omnichannel customer engagement platforms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to omnichannel customer engagement 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	Partial evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	10001+	35,365 contacts →
	Partial evidence “Foundever™ is a global leader in the customer experience (CX) industry.” Source: RevenueBase Database · checked Sep 29, 2026
2	IQOR	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 29, 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 29, 2026
3	IBEX	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	10001+	15,457 contacts →
	Strong evidence “ibex delivers innovative business process outsourcing (BPO), smart digital marketing, online acquisition technology, and end-to-end customer engagement solutions to help companies…” Source: RevenueBase Database · checked Sep 29, 2026
4	Startek	Strong evidence	Denver, United StatesHQ checked Sep 29, 2026	10001+	14,976 contacts →
	Strong 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 29, 2026
5	Intouchcx	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 29, 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 29, 2026
6	24 7.ai	Strong evidence	Campbell, CA, United StatesHQ checked Sep 29, 2026	10001+	8,461 contacts →
	Strong 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 29, 2026
7	Genesys	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,347 contacts →
	Partial evidence “Genesys® empowers more than organizations worldwide to create the best customer and employee experiences.” Source: RevenueBase Database · checked Sep 29, 2026
8	Cogent E Services	Partial evidence	Noida, IndiaHQ checked Sep 29, 2026	10001+	7,313 contacts →
	Partial 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 29, 2026
9	Ringcentral	Strong evidence	Belmont, CA, United StatesHQ checked Sep 29, 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 29, 2026
10	Twilio	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 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 29, 2026
11	CSG	Strong evidence	Englewood, CO, United StatesHQ checked Sep 29, 2026	5,001-10,000	5,874 contacts →
	Strong evidence “CSG is a leader in innovative customer engagement, revenue management and payments solutions that make ordinary customer experiences extraordinary.” Source: RevenueBase Database · checked Sep 29, 2026
12	Fusion CX	Partial evidence	Norcross, GA, United StatesHQ checked Sep 29, 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 29, 2026
13	Sprinklr	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 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 29, 2026
14	Harte Hanks	Strong evidence	Chelmsford, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,901 contacts →
	Strong 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 29, 2026
15	Infobip	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	3,309 contacts →
	Strong 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 29, 2026
16	SINCH	Partial evidence	Stockholm, SwedenHQ checked Sep 29, 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 29, 2026
17	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 29, 2026
18	Five9	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 29, 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 29, 2026
19	8x8	Indirect evidence	Campbell, CA, United StatesHQ checked Sep 29, 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 29, 2026
20	Webhelp Onelink	Strong evidence	Guatemala, United StatesHQ checked Sep 29, 2026	10001+	2,245 contacts →
	Strong evidence “OneLink is the premier partner in outsourced omnichannel customer experience services.” Source: RevenueBase Database · checked Sep 29, 2026
21	Marketing Werks	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	n/a	2,182 contacts →
	Strong evidence “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Source: RevenueBase Database · checked Sep 29, 2026
22	BRAZE	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,142 contacts →
	Strong 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
23	Contax S.A	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 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 29, 2026
24	Medallia	Partial evidence	Mclean, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,006 contacts →
	Partial evidence “Medallia is the enterprise experience platform that turns every signal into decisive action.” Source: RevenueBase Database · checked Sep 29, 2026
25	Quantanite	Partial evidence	London, United KingdomHQ checked Sep 29, 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 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 customer engagement 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 customer engagement platforms.
Partial evidence: Its own public description names part of omnichannel customer engagement platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name omnichannel customer engagement 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 4,381 omnichannel customer engagement platforms worldwide

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Omnichannel customer engagement platforms worldwide at a glance

As of Sep 29, 2026

22.4%Verified-email coverage

84.0Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,549

11-50

1,605

51-200

755

201-500

223

501-1,000

1,001-5,000

104

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 omnichannel customer engagement 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 omnichannel customer engagement platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “omnichannel customer engagement 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 customer engagement 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 customer engagement 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, 82,356 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 customer engagement platforms by location

38 lists · largest first

Every Omnichannel customer engagement 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 customer engagement 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 customer engagement platforms are there worldwide?

RevenueBase identified 4,381 omnichannel customer engagement 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 customer engagement platforms?

The United States leads with 857 companies, followed by India (417) and Brazil (410). Every omnichannel customer engagement platforms list by country and city is linked on this page.

Which city has the most omnichannel customer engagement platforms?

Sao Paulo leads with 141 headquartered companies, followed by London (108) and New York (69).

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 82,356 verified decision-maker contacts tracked across these 4,381 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.