Company lists · Data refreshed September 2026

Top 25 Call center consulting companies worldwide

Name: Call center consulting companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 8,331 companies tracked

RevenueBase identified 8,331 company matches for call center consulting companies worldwide as of September 2026 and tracks 625,815 professional contacts across them, including 63,262 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for call center consulting 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 27, 2026. Country and city lists for call center consulting 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 27, 2026 How this list was built

8,331Companies

625,815Contacts tracked

63,262Verified emails

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The 25 largest call center consulting companies worldwide

Ranked by team size

Top 25 of 8,331 company matches for call center consulting companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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	Alorica	Exact match	Irvine, CA, United StatesHQ recorded Sep 27, 2026	10001+	47,558 contacts →
	Exact match “We’re passionate about creating customers for life by designing experiences that elevate your brand.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	Sitel Group	Exact match	Miami, FL, United StatesHQ recorded Sep 27, 2026	10001+	35,365 contacts →
	Exact match “Foundever™ is a global leader in the customer experience (CX) industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	TTEC	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 2026	10001+	26,420 contacts →
	Exact match “We’re TTEC (pronounced t.tec).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	AEC	Exact match	Belo Horizonte, BrazilHQ recorded Sep 27, 2026	10001+	20,095 contacts →
	Exact match “A AeC é apontada consistentemente como a líder brasileira na entrega de soluções de experiência do cliente e gestão de processos terceirizados.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	IQOR	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Sep 27, 2026	10001+	17,310 contacts →
	Exact match “iQor is a trusted partner in customer experience solutions for global brands and a portfolio company of Mill Point Capital.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Startek	Exact match	Denver, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
7	VXI Global Solutions	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 27, 2026	10001+	14,238 contacts →
	Exact match “About VXI Global Solutions VXI Global Solutions is a BPO leader in customer service, customer experience, and digital solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Intouchcx	Exact match	Winnipeg, MB, CanadaHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
9	Cogent E Services	Exact match	Noida, IndiaHQ recorded Sep 27, 2026	10001+	7,313 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Turkcell Global Bilgi	Exact match	Beyoglu, TürkiyeHQ recorded Sep 27, 2026	10001+	6,167 contacts →
	Exact match “Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Everise	Exact match	Plantation, FL, United StatesHQ recorded Sep 27, 2026	10001+	5,863 contacts →
	Exact match “Everise delivers happiness to millions of customers around the world.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Qualfon	Exact match	Highland Park, MI, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
13	Afni, INC	Exact match	Bloomington, IL, United StatesHQ recorded Sep 27, 2026	10001+	5,553 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Fusion CX	Exact match	Norcross, GA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
15	Eficacia	Exact match	Cali, ColombiaHQ recorded Sep 27, 2026	10001+	4,692 contacts →
	Exact match “Incrementamos la productividad y eficiencia de nuestros clientes- Más de 40 años de experiencia en el mercado- Líderes en Soluciones de Mercadeo, Trade Marketing, Ventas y Gestión…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Apex America	Exact match	Córdoba, ArgentinaHQ recorded Sep 27, 2026	10001+	4,377 contacts →
	Exact match “At Apex America, we are a Next Generation BPO and a global strategic partner specialized in elevating customer service standards.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Continuum Global Solutions	Exact match	Dallas, TX, United StatesHQ recorded Sep 27, 2026	5,001-10,000	4,342 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	Callink	Exact match	Uberlândia, BrazilHQ recorded Sep 27, 2026	5,001-10,000	4,126 contacts →
	Exact match “Mais que call center: soluções que transformam o seu negócio e a jornada dos clientes!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	SX Negócios	Exact match	Novo Hamburgo, BrazilHQ recorded Sep 27, 2026	5,001-10,000	4,020 contacts →
	Exact match “Somos a Pulse Client Experts, uma empresa em constante evolução, impulsionados pela vontade de fazer acontecer.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	Raya CX	Exact match	Giza, EgyptHQ recorded Sep 27, 2026	5,001-10,000	3,989 contacts →
	Exact match “RAYA Customer Experience provides next-generation BPO and customer experience management on behalf of clients across various industries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Vikstar Contact Center	Exact match	Sao Paulo, BrazilHQ recorded Sep 27, 2026	10001+	3,914 contacts →
	Exact match “Vikstar is one of the biggest contact centers of Brazil.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Harte Hanks	Exact match	Chelmsford, MA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
23	Sercom	Exact match	Taboão Da Serra, BrazilHQ recorded Sep 27, 2026	5,001-10,000	3,785 contacts →
	Exact match “Founded in 1993, since the beginning Sercom has stood out in the Contact Center Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	GSS Global Sales Solutions	Exact match	Madrid, SpainHQ recorded Sep 27, 2026	10001+	3,716 contacts →
	Exact match “is a tech company specialized in providing, and for.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Merchants	Exact match	Johannesburg, South AfricaHQ recorded Sep 27, 2026	5,001-10,000	3,654 contacts →
	Exact match “Merchants is a leading customer management partner specialising in business process outsourcing (BPO) that delivers customer experience and customer interactions.” Recorded in the RevenueBase company graph · Sep 27, 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 “call center consulting 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 8,331 call center consulting companies worldwide

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Call center consulting companies worldwide at a glance

As of Sep 27, 2026

10.1%Verified-email coverage

75.1Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Sao Paulo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,996

11-50

2,380

51-200

1,626

201-500

608

501-1,000

297

1,001-5,000

285

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 call center consulting companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “call center consulting 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 63,262 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 27, 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.

Call center consulting companies by location

41 lists · largest first

Every Call center consulting 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 “call center consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many call center consulting companies are there worldwide?

RevenueBase identified 8,331 company matches for call center consulting 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?

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

Which country has the most call center consulting companies?

The United States leads with 1,604 companies, followed by India (491) and Brazil (377). Every call center consulting companies list by country and city is linked on this page.

Which city has the most call center consulting companies?

Sao Paulo leads with 141 company records, followed by London (97) and Lahore (77).

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 63,262 professional contacts with verified work emails tracked across these 8,331 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 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 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.