Company lists · Data verified August 2026

Top 25 Customer support outsourcing companies based in Brazil

Name: Customer support outsourcing companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 267 companies tracked

There are 267 customer support outsourcing companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 112,528 professional contacts across them, including 5,865 with verified work emails and 549 with mobile numbers. Sao Paulo is the largest hub.

This list covers customer support outsourcing companies headquartered in Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

267Companies

112,528Contacts tracked

5,865Verified emails

549Mobile numbers

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The 25 largest customer support outsourcing companies based in Brazil

Ranked by team size

Top 25 of 267 customer support outsourcing companies based in Brazil, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Atento	Sao Paulo	10001+	77,086	4,111
2	Callink	Uberlandia	5,001-10,000	4,137	331
3	Vikstar Contact Center	Sao Paulo	10001+	3,912	68
4	Sercom	Taboao Da Serra	5,001-10,000	3,788	158
5	Plansul	Florianopolis	10001+	3,092	33
6	Webhelp Onelink	Curitiba	10001+	2,250	421
7	Vemsertahto	Goiania	5,001-10,000	2,174	109
8	Grupo MAP	Salvador	10001+	1,437	1
9	DBM Contact Center	Curitiba	1,001-5,000	1,313	36
10	Parla Contact Center	Barueri	1,001-5,000	1,234	20
11	Logos Serviços	Sao Luis	1,001-5,000	1,161	33
12	Youtility Center DO Brasil	Barra Mansa	1,001-5,000	924	2
13	Vector	Fortaleza	1,001-5,000	700	3
14	5 Estrelas Special Service Limpeza E Serviços Auxiliares Ltda	Aparecida De Goiania	1,001-5,000	590	1
15	ATN Contact Center	Rio De Janeiro	501-1,000	530	2
16	MSX International Brasil	Sao Caetano Do Sul	5,001-10,000	443	54
17	Almaviva DO Brasil	Sao Paulo	10001+	318	76
18	Bcr.Cx, Zendesk Partner Of The Year 2026	Sao Paulo	201-500	312	63
19	Full Time Soluções	Sao Paulo	501-1,000	281	22
20	Beltis	Sao Paulo	201-500	149	1
21	Meet Call	Rio De Janeiro	1,001-5,000	142	2
22	Ivox Contact Center	Vitoria	51-200	94	11
23	GVP	Barueri	51-200	94	7
24	Belluno Call Center	Cacapava Do Sul	51-200	91	7
25	Quality Contact Center	Taboao Da Serra	501-1,000	88	5

Showing 25 of 267 customer support outsourcing companies based in Brazil

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Customer support outsourcing companies based in Brazil at a glance

As of Aug 28, 2026

11-50Median size (employees)

Sao PauloLargest hub · 72 HQs

549Contacts with mobile numbers

12Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Customer support outsourcing companies by metro

Metro	Companies
Customer support outsourcing companies in Sao Paulo	72
Customer support outsourcing companies in Curitiba	12
Customer support outsourcing companies in Porto Alegre	11
Customer support outsourcing companies in Rio De Janeiro	10
Customer support outsourcing companies in Fortaleza	8
Customer support outsourcing companies in Barueri	8
Customer support outsourcing companies in Belo Horizonte	6
Customer support outsourcing companies in Florianopolis	5

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “customer support outsourcing companies”, with match quality audited by blind human judging, and headquartered in Brazil.
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: Contact records re-verify on a rolling cadence; 12 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many customer support outsourcing companies are there based in Brazil?

There are 267 customer support outsourcing companies headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

Atento, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most customer support outsourcing companies?

Sao Paulo leads with 72 headquartered companies, followed by Curitiba (12) and Porto Alegre (11).

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 5,865 verified decision-maker contacts tracked across these 267 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.