Company lists · Data verified August 2026

Top 25 Defense cybersecurity companies based in Brazil

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 379 companies tracked

There are 379 defense cybersecurity companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 4,557 professional contacts across them, including 1,325 with verified work emails and 202 with mobile numbers. Sao Paulo is the largest hub.

This list covers defense cybersecurity 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.

379Companies

4,557Contacts tracked

1,325Verified emails

202Mobile numbers

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The 25 largest defense cybersecurity companies based in Brazil

Ranked by team size

Top 25 of 379 defense cybersecurity 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	Neosecure By SEK	Sao Paulo	501-1,000	416	130
2	Safeway	Rio De Janeiro	201-500	397	11
3	Oplium	Rio De Janeiro	201-500	228	104
4	Redbelt Security	Sao Paulo	51-200	214	91
5	CG ONE	Sao Paulo	51-200	119	30
6	Network Secure	Fortaleza	51-200	116	60
7	Foregenix	Sao Paulo	51-200	80	61
8	Altasnet	Belo Horizonte	51-200	71	34
9	Bricon IT Solutions	Sao Paulo	51-200	57	11
10	Actar Peers Group	Campinas	51-200	55	27
11	Dfense	Sao Paulo	51-200	55	22
12	RSEC	Brasilia	51-200	55	5
13	Berghem	Sao Paulo	51-200	54	21
14	Cylk Technologing	Sao Paulo	51-200	49	21
15	Itprotect Brasil	Belem	11-50	46	22
16	Next4sec Security Intelligence	Sao Paulo	51-200	43	13
17	BĒNCE	Curitiba	11-50	42	28
18	Jc2sec	Sao Paulo	51-200	41	26
19	UPX	Campinas	51-200	38	7
20	Ibestsec Segurança DA Informação	Barueri	51-200	35	17
21	Qriar Technologies	Sao Paulo	11-50	34	20
22	Pacific SEC	Belo Horizonte	51-200	34	15
23	It4us Cyber Security	Sao Paulo	51-200	34	11
24	Safenet Tecnologia Ltda	Rio De Janeiro	51-200	29	1
25	Focaldata	Barueri	11-50	27	12

Showing 25 of 379 defense cybersecurity companies based in Brazil

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Defense cybersecurity companies based in Brazil at a glance

As of Aug 28, 2026

11-50Median size (employees)

Sao PauloLargest hub · 127 HQs

202Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

181

11-50

156

51-200

201-500

501-1,000

5,001-10,000

Defense cybersecurity companies by metro

Metro	Companies
Defense cybersecurity companies in Sao Paulo	127
Defense cybersecurity companies in Rio De Janeiro	35
Defense cybersecurity companies in Brasilia	17
Defense cybersecurity companies in Belo Horizonte	14
Defense cybersecurity companies in Barueri	11
Defense cybersecurity companies in Curitiba	10
Defense cybersecurity companies in Porto Alegre	9
Defense cybersecurity companies in Campinas	8

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 “defense cybersecurity 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; 3 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 defense cybersecurity companies are there based in Brazil?

There are 379 defense cybersecurity companies headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

Neosecure By SEK, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Sao Paulo leads with 127 headquartered companies, followed by Rio De Janeiro (35) and Brasilia (17).

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 1,325 verified decision-maker contacts tracked across these 379 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.