Company lists · Data verified August 2026
Top 22 Call centers based in Sao Paulo, Brazil
Use this directory to identify 69 call centers based in Sao Paulo, Brazil, with 8,488 listed contacts and 506 listed email addresses. The directory was last updated in August 2026; Sao Paulo is the single most-represented city among the companies on the list.
Call centers handle inbound and outbound phone interactions for clients, including customer service, sales, technical support, appointment setting, and other business communications. This list covers companies that provide call center services directly to businesses or organizations, including inbound, outbound, customer service, sales, support, and appointment-setting operations. Ranked by team size, largest first. Data current as of August 28, 2026.
The 22 largest call centers based in Sao Paulo, Brazil
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  Vikstar Contact Center | 68 |
| 2 |  Home Agent | 167 |
| 3 |  Vermont Xcenter | 59 |
| 4 | Almaviva DO Brasil | 76 |
| 5 |  55pbx Telecom E Pabx NA Nuvem | 40 |
| 6 | Action Line Telemarketing DO Brasil | 2 |
| 7 |  Bizpro Processos DE Negócios | 1 |
| 8 |  Grupo Amaro | 7 |
| 9 |  Total IP IA | 23 |
| 10 |  I9 Contact Center | 1 |
| 11 |  Positec Global Solutions | 9 |
| 12 |  Talkd Solutions Brazil | 18 |
| 13 |  Grupo Arbol | 4 |
| 14 |  LH Tecnologia | 7 |
| 15 |  Konnekti | 5 |
| 16 |  Brbotssa | 4 |
| 17 |  Flex Business | 3 |
| 18 |  vya.digital | 3 |
| 19 |  ISTMO | 3 |
| 20 |  Teclan | 2 |
| 21 |  Defyit Tecnologia DA Informação | 3 |
| 22 |  Vocale Solutions Soluções Para Contact Centers | 1 |
Showing 22 of 69 call centers based in Sao Paulo, Brazil
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Call centers based in Sao Paulo, Brazil at a glance
As of Aug 28, 2026Companies by employee count
Call centers by metro in Brazil
| Metro | Companies |
|---|---|
| Call centers in Sao Paulo | 69 |
| Call centers in Barueri | 11 |
| Call centers in Rio De Janeiro | 10 |
| Call centers in Campinas | 7 |
| Call centers in Curitiba | 7 |
| Call centers in Porto Alegre | 6 |
| Call centers in Belo Horizonte | 6 |
| Call centers in Goiania | 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 “call centers”, with match quality audited by blind human judging, and headquartered in Sao Paulo, 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; 6 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 call centers are listed based in Sao Paulo, Brazil?
69 call centers are listed based in Sao Paulo, Brazil, with 8,488 contacts and 506 email addresses provided.
Which city has the most call centers in this list?
Sao Paulo is the single most-represented city among the companies on the list.
How can I contact call centers in this directory?
The directory includes 8,488 listed contacts and 506 listed email addresses for the call centers included.
Ready to reach these companies? Verified emails and direct dials for all 69 call centers based in Sao Paulo, Brazil. Start with a free account, no credit card.
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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.