Company lists · Data verified August 2026

Top 25 Cybersecurity defense companies based in Brazil

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 573 companies tracked

There are 573 cybersecurity defense companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 6,624 professional contacts across them, including 1,981 with verified work emails and 234 with mobile numbers. Sao Paulo is the largest hub.

This list covers cybersecurity defense 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.

573Companies

6,624Contacts tracked

1,981Verified emails

234Mobile numbers

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The 25 largest cybersecurity defense companies based in Brazil

Ranked by team size

Top 25 of 573 cybersecurity defense 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	Stefanini Cyber	Sao Paulo	501-1,000	197	4
6	Future Technologies	Petropolis	51-200	144	60
7	Under Protection	Pinhais Alphaville	51-200	125	57
8	CG ONE	Sao Paulo	51-200	119	30
9	Network Secure	Fortaleza	51-200	116	60
10	Inorpel Cybersecurity	Cabedelo	51-200	103	24
11	EVAL	Sao Paulo	51-200	87	31
12	Apura Cyber Corp	Brasilia	51-200	82	53
13	Foregenix	Sao Paulo	51-200	80	61
14	Blockbit	Sao Paulo	51-200	78	20
15	OL Tecnologia	Sao Paulo	51-200	68	23
16	CPD	Brasilia Df	51-200	59	22
17	Deltapoint	Sao Paulo	51-200	57	22
18	Bricon IT Solutions	Sao Paulo	51-200	57	11
19	Dfense	Sao Paulo	51-200	55	22
20	RSEC	Brasilia	51-200	55	5
21	Berghem	Sao Paulo	51-200	54	21
22	Cylk Technologing	Sao Paulo	51-200	49	21
23	Next4sec Security Intelligence	Sao Paulo	51-200	43	13
24	Jc2sec	Sao Paulo	51-200	41	26
25	UPX	Campinas	51-200	38	7

Showing 25 of 573 cybersecurity defense companies based in Brazil

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Cybersecurity defense companies based in Brazil at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sao PauloLargest hub · 207 HQs

234Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

303

11-50

213

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Cybersecurity defense companies by metro

Metro	Companies
Cybersecurity defense companies in Sao Paulo	207
Cybersecurity defense companies in Rio De Janeiro	43
Cybersecurity defense companies in Belo Horizonte	25
Cybersecurity defense companies in Brasilia	22
Cybersecurity defense companies in Curitiba	20
Cybersecurity defense companies in Barueri	18
Cybersecurity defense companies in Porto Alegre	12
Cybersecurity defense companies in Florianopolis	9

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 “cybersecurity defense 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; 4 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 cybersecurity defense companies are there based in Brazil?

There are 573 cybersecurity defense 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 cybersecurity defense companies?

Sao Paulo leads with 207 headquartered companies, followed by Rio De Janeiro (43) and Belo Horizonte (25).

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 1,981 verified decision-maker contacts tracked across these 573 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.