Company lists · Data refreshed September 2026

Top 25 Customer engagement companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 7,455 companies tracked

RevenueBase identified 7,455 company matches for customer engagement companies worldwide as of September 2026 and tracks 322,117 professional contacts across them, including 80,849 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for customer engagement companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for customer engagement companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

7,455Companies

322,117Contacts tracked

80,849Verified emails

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The 25 largest customer engagement companies worldwide

Ranked by team size

Top 25 of 7,455 company matches for customer engagement companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	IBEX	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	10001+	15,457 contacts →
	Exact match “ibex delivers innovative business process outsourcing (BPO), smart digital marketing, online acquisition technology, and end-to-end customer engagement solutions to help companies…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Startek	Exact match	Denver, United StatesHQ recorded Sep 21, 2026	10001+	14,976 contacts →
	Exact match “A global customer experience (CX) management solutions provider, Startek® delivers best-in-class omnichannel CX, digital transformation and enterprise tech services for leading…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	TDCX	Exact match	SingaporeHQ recorded Sep 21, 2026	10001+	13,640 contacts →
	Exact match “Singapore-headquartered TDCX provides transformative digital CX solutions, enabling world-leading and disruptive brands to acquire new customers, to build customer loyalty, and to…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Transcom	Exact match	Stockholm, SwedenHQ recorded Sep 21, 2026	10001+	12,955 contacts →
	Exact match “Transcom provides digitally enhanced customer experience (CX) services to some of the world's most ambitious brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Hubspot	Exact match	Cambridge, MA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	11,077 contacts →
	Exact match “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Intouchcx	Exact match	Winnipeg, MB, CanadaHQ recorded Sep 21, 2026	10001+	8,992 contacts →
	Exact match “We are IntouchCX, where innovation meets industry, where dreamers meet doers, and where scale meets soul.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	24 7.ai	Exact match	Campbell, CA, United StatesHQ recorded Sep 21, 2026	10001+	8,461 contacts →
	Exact match “24]7.ai™ customer engagement solutions use conversational artificial intelligence to understand customer intent, enabling companies to create personalized, predictive, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Ringcentral	Exact match	Belmont, CA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,431 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Twilio	Exact match	San Francisco, CA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,047 contacts →
	Exact match “Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	CSG	Exact match	Englewood, CO, United StatesHQ recorded Sep 21, 2026	5,001-10,000	5,874 contacts →
	Exact match “CSG is a leader in innovative customer engagement, revenue management and payments solutions that make ordinary customer experiences extraordinary.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Qualfon	Exact match	Highland Park, MI, United StatesHQ recorded Sep 21, 2026	10001+	5,840 contacts →
	Exact match “Qualfon provides 360 degrees of customer experience support for your business with mission-driven processes that keep each person at the heart of every interaction.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Fusion CX	Exact match	Norcross, GA, United StatesHQ recorded Sep 21, 2026	10001+	4,785 contacts →
	Exact match “At Fusion CX, we revolutionize customer experience by blending innovative technology and human connection.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Ibex. Pakistan	Exact match	Karachi, PakistanHQ recorded Sep 21, 2026	10001+	4,161 contacts →
	Exact match “ibex.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Harte Hanks	Exact match	Chelmsford, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,901 contacts →
	Exact match “We are The Customer Company®, a global leader in Customer Experience (CX), Omnichannel Marketing, Data Services, Customer Care, Fulfillment, and Logistics.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Infobip	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	3,309 contacts →
	Exact match “Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	SINCH	Exact match	Stockholm, SwedenHQ recorded Sep 21, 2026	1,001-5,000	2,934 contacts →
	Exact match “Sinch’s vision is to connect every business with every customer, everywhere in the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Klaviyo	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,789 contacts →
	Exact match “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	THRYV	Exact match	Dallas, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,412 contacts →
	Exact match “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Marketing Werks	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	n/a	2,182 contacts →
	Exact match “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	BRAZE	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,142 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Contax S.A	Exact match	Sao Paulo, BrazilHQ recorded Sep 21, 2026	10001+	2,114 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Medallia	Exact match	Mclean, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,006 contacts →
	Exact match “Medallia is the enterprise experience platform that turns every signal into decisive action.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Sykes Philippines	Exact match	Makati City, PhilippinesHQ recorded Sep 21, 2026	10001+	1,990 contacts →
	Exact match “Sitel Philippines (formerly SYKES).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Actionline	Exact match	Sao Paulo, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,921 contacts →
	Exact match “Actionline is dedicated to connecting brands with their customers, strengthening their presence and value at every touchpoint.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	BI Worldwide	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,905 contacts →
	Exact match “BI WORLDWIDE is a global engagement agency that uses the principles of behavioral economics to produce measurable business results by designing and delivering solutions that…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “customer engagement companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 7,455 customer engagement companies worldwide

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Customer engagement companies worldwide at a glance

As of Sep 21, 2026

25.1%Verified-email coverage

43.2Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

3,506

11-50

2,547

51-200

900

201-500

266

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

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for customer engagement companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “customer engagement companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 80,849 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Customer engagement companies by location

49 lists · largest first

Every Customer engagement 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “customer engagement companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer engagement companies are there worldwide?

RevenueBase identified 7,455 company matches for customer engagement companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

IBEX tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most customer engagement companies?

The United States leads with 1,682 companies, followed by India (680) and the United Kingdom (471). Every customer engagement companies list by country and city is linked on this page.

Which city has the most customer engagement companies?

London leads with 209 company records, followed by Sao Paulo (142) and New York (106).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 80,849 professional contacts with verified work emails tracked across these 7,455 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.