Company lists · Data refreshed September 2026

Top 25 Customer retention call center services based in Brazil

RevenueBase identified 105 company matches for customer retention call center services associated with Brazil as of September 2026 and tracks 18,391 professional contacts across them, including 822 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for customer retention call center services associated with Brazil, 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 28, 2026.

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 28, 2026 How this list was built
105Companies
18,391Contacts tracked
822Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest customer retention call center services based in Brazil

Ranked by team size
Top 25 of 105 company matches for customer retention call center services based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUberlândia, BrazilHQ recorded Sep 28, 20265,001-10,0004,126 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 28, 2026 · View company records in RevenueBase
2Exact matchTaboão Da Serra, BrazilHQ recorded Sep 28, 20265,001-10,0003,785 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 28, 2026 · View company records in RevenueBase
3Exact matchCuritiba, BrazilHQ recorded Sep 28, 20261,001-5,0001,312 contacts →

Exact match

“A dbm Contact Center foi fundada em 1996 e possui sede própria em Curitiba.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchGoiânia, BrazilHQ recorded Sep 28, 202610001+1,058 contacts →

Exact match

“Em breve uma nova página da BTCC Conexão Cliente.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchSão Paulo, BrazilHQ recorded Sep 28, 20261,001-5,000911 contacts →

Exact match

“Somos a união da Liderança, e seus 34 anos de atendimento humanizado, com a Emdia, e sua expertise em inovação.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchFortaleza, BrazilHQ recorded Sep 28, 20261,001-5,000701 contacts →

Exact match

“A VECTOR SERVIÇOS é uma empresa especializada na criação, implantação e gestão de serviços de Contact Center.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Sep 28, 20261,001-5,000529 contacts →

Exact match

“A ATN Contact Center é especialista em Relacionamento com Clientes e BPO, com 29 anos de experiência transformando a forma como empresas se conectam com seus consumidores.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSantos, BrazilHQ recorded Sep 28, 2026501-1,000323 contacts →

Exact match

“O Grupo Verreschi é especializado em soluções completas no relacionamento com o cliente.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSao Paulo, BrazilHQ recorded Sep 28, 202610001+305 contacts →

Exact match

“Fundada em 2006, a AlmavivA do Brasil é uma das principais empresas do segmento de contact center e a única a oferecer soluções inovadoras de Business Process Outsourcing (BPO)…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchSete Lagoas, BrazilHQ recorded Sep 28, 2026201-500140 contacts →

Exact match

“Somos uma empresa de contact center, apaixonada por entregar excelência na experiência do cliente.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchVitória, BrazilHQ recorded Sep 28, 202651-20093 contacts →

Exact match

“A Ivox é uma empresa de Call Center mas que vende mais do que isso, seu conceito é a entrega de SOLUÇÕES DE ATENDIMENTO, para o cliente que precisa de eficiência através de: •…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchTaboão Da Serra, BrazilHQ recorded Sep 28, 2026501-1,00086 contacts →

Exact match

“A Quality Contact Center ® é formada por uma equipe de talentos altamente qualificados compondo uma cultura com a marca da inovação e da agilidade, apontando sempre “para o foco…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSão Paulo, BrazilHQ recorded Sep 28, 202651-20073 contacts →

Exact match

“Somos uma empresa focada em ajudar você a atender seus clientes em todos os canais disponíveis, para ajudar você a entregar uma experiência fantástica, surpreendendo e…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchSao Paulo, BrazilHQ recorded Sep 28, 202651-20062 contacts →

Exact match

“A Amaro atua no mercado desde oferecendo soluções concretas para o desenvolvimento de projetos dirigidos ao atendimento de seu cliente.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchSão Paulo, BrazilHQ recorded Sep 28, 202611-5046 contacts →

Exact match

“Um novo conceito em Contact Center!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchSao Caetano Do Sul, BrazilHQ recorded Sep 28, 2026201-50042 contacts →

Exact match

“Somos especialistas em oferecer serviços customizados de terceirização de atendimento ao cliente.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchSao Paulo, BrazilHQ recorded Sep 28, 202611-5040 contacts →

Exact match

“A sua empresa disponibiliza uma estrutura moderna e eficiente de atendimento e relacionamento aos seus clientes?”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchCampinas, BrazilHQ recorded Sep 28, 20261,001-5,00040 contacts →

Exact match

“Em meados do ano de 2005, os empreendedores do que viria a ser a MOTIVA Contact Center perceberam que o mercado necessitava como nunca de uma empresa aguerrida e extremamente…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchNiterói, BrazilHQ recorded Sep 28, 2026501-1,00039 contacts →

Exact match

“A WA é uma empresa que atua desde 2002, especializada na área de Call Center e Contact Center, com Capital 100% Nacional, afiliada à ABT e certificada pela Achilles.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchJoinville, BrazilHQ recorded Sep 28, 202611-5037 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchCampinas, BrazilHQ recorded Sep 28, 202611-5026 contacts →

Exact match

“Atuamos em projetos de prospecção, fidelização, relacionamento e rentabilização de clientes para sua empresa através de soluções completas em BPO de Contact Center.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchPouso Alegre, BrazilHQ recorded Sep 28, 202651-20024 contacts →

Exact match

“Somos o seu canal oficial de relacionamento, conectando você diretamente aos seus clientes- Atendimento 24/7 - SAC - Cobrança - Pré-Vendas e Vendas”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchBarueri, BrazilHQ recorded Sep 28, 20261-1018 contacts →

Exact match

“Empresa especializada em serviços para o mercado de atendimento ao consumidor, destacando-se pela habilidade de atender necessidades especificas do segmento, além de conduzir…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSao Paulo, BrazilHQ recorded Sep 28, 20261-1017 contacts →

Exact match

“Atuamos no mercado de contact center desde 2008, fornecendo aos nossos clientes serviços de SAC (via contato telefônico, Chat ou e-mail) Cobrança e Televendas.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSão Paulo, BrazilHQ recorded Sep 28, 202651-2009 contacts →

Exact match

“A Spvox é uma empresa consolidada no segmento de relacionamento e atendimento ao cliente desde 1997.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 105 customer retention call center services based in Brazil

See the full list, filter by size, metro and specialty, and access 822 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Customer retention call center services based in Brazil at a glance

As of Sep 28, 2026
4.5%Verified-email coverage
175.2Average contacts per company
51-200Median size (employees)
28.6%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
27
51-200
26
201-500
13
501-1,000
7
1,001-5,000
10
5,001-10,000
3
10001+
2

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 105 companies.

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.
What qualifies
Company records associated with Brazil whose business descriptions match “customer retention call center services” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 822 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 28, 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.

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 retention call center services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer retention call center services are there based in Brazil?

RevenueBase identified 105 company matches for customer retention call center services associated with Brazil 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?

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

Which city has the most customer retention call center services?

Sao Paulo leads with 30 company records, followed by Porto Alegre (5) and Campinas (4).

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 822 professional contacts with verified work emails tracked across these 105 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 105 customer retention call center services based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

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.