Company lists · Data verified August 2026

Top 25 Computer security companies based in Brazil

Name: Computer security companies based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 234 companies tracked

There are 234 computer security companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 2,368 professional contacts across them, including 689 with verified work emails and 33 with mobile numbers. Sao Paulo is the largest hub.

This list covers computer security 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.

234Companies

2,368Contacts tracked

689Verified emails

33Mobile numbers

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The 25 largest computer security companies based in Brazil

Ranked by team size

Top 25 of 234 computer security 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	CG ONE	Sao Paulo	51-200	119	30
2	Network Secure	Fortaleza	51-200	116	60
3	Netsecurity	Sao Paulo	51-200	109	64
4	EVAL	Sao Paulo	51-200	87	31
5	Berghem	Sao Paulo	51-200	54	21
6	I DO	Rio De Janeiro	11-50	47	2
7	Itprotect Brasil	Belem	11-50	46	22
8	MAV Tecnologia	Belo Horizonte	11-50	45	1
9	Next4sec Security Intelligence	Sao Paulo	51-200	43	13
10	Sentinela Security Intelligence	Porto Alegre	11-50	42	4
11	Gruppen IT Security	Porto Alegre	51-200	38	25
12	Ostec Business Security	Tubarao	51-200	38	16
13	Qriar Technologies	Sao Paulo	11-50	34	20
14	It4us Cyber Security	Sao Paulo	51-200	34	11
15	Full Service Soluções Completas EM Tecnologia	Sao Paulo	51-200	31	5
16	Integrasul Controle E Imunidade Virtual	Caxias Do Sul	11-50	30	20
17	Xlogic	Salvador	11-50	25	14
18	Eset Brasil	Sao Paulo	501-1,000	24	13
19	LDC Soluções	Minas	11-50	23	15
20	Stronit	Jaragua Do Sul	11-50	21	5
21	Access Security	Barueri	11-50	20	5
22	INB Tecnologia	Brasilia	11-50	18	15
23	Castle Security Services	Sao Paulo	11-50	17	9
24	Estratégia IT	Porto Alegre	11-50	15	9
25	Trend Micro Brasil	Sao Paulo	n/a	14	8

Showing 25 of 234 computer security companies based in Brazil

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Computer security companies based in Brazil at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sao PauloLargest hub · 79 HQs

33Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

118

11-50

51-200

501-1,000

1,001-5,000

5,001-10,000

Computer security companies by metro

Metro	Companies
Computer security companies in Sao Paulo	79
Computer security companies in Rio De Janeiro	12
Computer security companies in Curitiba	10
Computer security companies in Brasilia	9
Computer security companies in Recife	7
Computer security companies in Porto Alegre	7
Computer security companies in Campinas	6
Computer security companies in Belo Horizonte	6

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 “computer security 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; 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 computer security companies are there based in Brazil?

There are 234 computer security companies headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most computer security companies?

Sao Paulo leads with 79 headquartered companies, followed by Rio De Janeiro (12) and Curitiba (10).

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 689 verified decision-maker contacts tracked across these 234 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.