Company lists · Data refreshed September 2026

Top 25 Contact center technology consultants worldwide

Name: Contact center technology consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 8,450 companies tracked

RevenueBase identified 8,450 contact center technology consultants worldwide as of September 2026 and tracks 350,184 professional contacts across them, including 42,732 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers contact center technology consultants 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 27, 2026. Country and city lists for contact center technology consultants 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 27, 2026 86% judged on-target in blind review

8,450Companies

350,184Contacts tracked

42,732Verified emails

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The 25 largest contact center technology consultants worldwide

Ranked by team size

Top 25 of 8,450 contact center technology consultants worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to contact center technology consultants: 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	Foundever	Indirect evidence	Miami, FL, United StatesHQ checked Sep 27, 2026	10001+	30,990 contacts →
	Indirect evidence “Foundever® is the next-generation service leader reinventing customer experience (CX).” Source: RevenueBase Database · checked Sep 27, 2026
2	Turkcell Global Bilgi	Indirect evidence	Beyoglu, TürkiyeHQ checked Sep 27, 2026	10001+	6,167 contacts →
	Indirect evidence “Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Source: RevenueBase Database · checked Sep 27, 2026
3	Afni, INC	Strong evidence	Bloomington, IL, United StatesHQ checked Sep 27, 2026	10001+	5,553 contacts →
	Strong 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 27, 2026
4	Continuum Global Solutions	Strong evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	5,001-10,000	4,342 contacts →
	Strong evidence “With a fresh name and decades of contact center expertise, we’re dedicated to collaborative partnerships, understanding your unique needs, and tailoring solutions for an enhanced…” Source: RevenueBase Database · checked Sep 27, 2026
5	Callink	Partial evidence	Uberlândia, BrazilHQ checked Sep 27, 2026	5,001-10,000	4,126 contacts →
	Partial evidence “Mais que call center: soluções que transformam o seu negócio e a jornada dos clientes!” Source: RevenueBase Database · checked Sep 27, 2026
6	Vikstar Contact Center	Strong evidence	Sao Paulo, BrazilHQ checked Sep 27, 2026	10001+	3,914 contacts →
	Strong evidence “Vikstar is one of the biggest contact centers of Brazil.” Source: RevenueBase Database · checked Sep 27, 2026
7	Harte Hanks	Indirect evidence	Chelmsford, MA, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,901 contacts →
	Indirect 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 27, 2026
8	Sercom	Strong evidence	Taboão Da Serra, BrazilHQ checked Sep 27, 2026	5,001-10,000	3,785 contacts →
	Strong evidence “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Source: RevenueBase Database · checked Sep 27, 2026
9	GSS Global Sales Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 27, 2026	10001+	3,716 contacts →
	Indirect evidence “is a tech company specialized in providing, and for.” Source: RevenueBase Database · checked Sep 27, 2026
10	TMKT	Strong evidence	Poa, BrazilHQ checked Sep 27, 2026	5,001-10,000	3,333 contacts →
	Strong evidence “A TMKT é uma empresa de Contact Center que foi fundada em 1991 e se tornou uma referência no mercado de Customer Experience (CX).” Source: RevenueBase Database · checked Sep 27, 2026
11	Quantrics Enterprises INC	Indirect evidence	Taytay, PhilippinesHQ checked Sep 27, 2026	5,001-10,000	3,132 contacts →
	Indirect evidence “In the Philippines, Quantrics by NQX is redefining customer experience by bringing together the expertise of a global leader and the passion of world-class Filipino talent.” Source: RevenueBase Database · checked Sep 27, 2026
12	Telvista	Partial evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	3,122 contacts →
	Partial evidence “Email: info@Telvista.com Telvista is a premier provider of contact solutions that drive customer loyalty and create competitive advantage for our clients.” Source: RevenueBase Database · checked Sep 27, 2026
13	Extensya	Strong evidence	Amman, JordanHQ checked Sep 27, 2026	1,001-5,000	3,071 contacts →
	Strong evidence “Extensya is a company that primarily specializes in contact management solutions and business process outsourcing services, with a network of fully equipped contact centers in…” Source: RevenueBase Database · checked Sep 27, 2026
14	EPX Eperformax Contact Centers	Strong evidence	Pasay City, PhilippinesHQ checked Sep 27, 2026	5,001-10,000	3,061 contacts →
	Strong evidence “ePerformax is a high-performing contact center & BPO that provides world-class, omnichannel service and support to a select group of Fortune companies and their customers.” Source: RevenueBase Database · checked Sep 27, 2026
15	TAHTO	Indirect evidence	Goiânia, BrazilHQ checked Sep 27, 2026	10001+	2,552 contacts →
	Indirect evidence “Com 19 anos de experiência em CX e BPO, somos consultivos e entregamos soluções personalizadas que conectam pessoas e tecnologia para impulsionar seus resultados.” Source: RevenueBase Database · checked Sep 27, 2026
16	Transcosmos Indonesia Official	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 27, 2026	1,001-5,000	2,432 contacts →
	Indirect evidence “PT Transcosmos Indonesia is a joint-venture company between Transcosmos inc.” Source: RevenueBase Database · checked Sep 27, 2026
17	CAT Technologies Argentina	Strong evidence	Buenos Aires, ArgentinaHQ checked Sep 27, 2026	1,001-5,000	2,221 contacts →
	Strong evidence “Somos la compañía líder en Servicios Next Gen de Contact Center, Business Process Outsourcing (BPO) y Customer Experience (CX).” Source: RevenueBase Database · checked Sep 27, 2026
18	Contax S.A	Partial evidence	Sao Paulo, BrazilHQ checked Sep 27, 2026	10001+	2,114 contacts →
	Partial 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 27, 2026
19	Liveops, INC	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 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 27, 2026
20	Transcosmos INC	Indirect evidence	Toshima-ku, JapanHQ checked Sep 27, 2026	10001+	1,987 contacts →
	Indirect evidence “transcosmos launched its operations in 1966.” Source: RevenueBase Database · checked Sep 27, 2026
21	Infocision Management Corporation	Strong evidence	Akron, OH, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,764 contacts →
	Strong evidence “InfoCision is an award-winning contact center partner trusted by leading brands for over 40 years.” Source: RevenueBase Database · checked Sep 27, 2026
22	Technotask Business Solutions PVT LTD	Indirect evidence	Bhopal, IndiaHQ checked Sep 27, 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 27, 2026
23	Km2 Solutions	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 27, 2026	5,001-10,000	1,741 contacts →
	Indirect evidence “Award-winning outsourcing partner with two decades of experience operating an exclusively nearshore strategy that delivers better performance, close to home, and at a lower cost.” Source: RevenueBase Database · checked Sep 27, 2026
24	Support Services Group	Partial evidence	Waco, TX, United StatesHQ checked Sep 27, 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 27, 2026
25	Sybrid Private Limited	Partial evidence	Karachi, PakistanHQ checked Sep 27, 2026	1,001-5,000	1,609 contacts →
	Partial evidence “Sybrid (Pvt) Ltd is Pakistan's leading technology solutions provider, helping businesses optimize their operations and drive growth.” Source: RevenueBase Database · checked Sep 27, 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: contact center technology consultants. 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 contact center technology consultants.
Partial evidence: Its own public description names part of contact center technology consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name contact center technology consultants. 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 8,450 contact center technology consultants worldwide

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Contact center technology consultants worldwide at a glance

As of Sep 27, 2026

12.2%Verified-email coverage

41.4Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,875

11-50

2,832

51-200

1,597

201-500

563

501-1,000

243

1,001-5,000

256

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 contact center technology consultants, 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 contact center technology consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “contact center technology consultants”. 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 contact center technology consultants), 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 contact center technology consultants, 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, 42,732 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 27, 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.

Contact center technology consultants by location

59 lists · largest first

Every Contact center technology consultants 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 contact center technology consultants, 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 contact center technology consultants are there worldwide?

RevenueBase identified 8,450 contact center technology consultants 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?

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

Which country has the most contact center technology consultants?

The United States leads with 1,609 companies, followed by Brazil (529) and India (481). Every contact center technology consultants list by country and city is linked on this page.

Which city has the most contact center technology consultants?

Sao Paulo leads with 177 headquartered companies, followed by London (87) and Madrid (67).

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 42,732 verified decision-maker contacts tracked across these 8,450 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 27, 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.