Company lists · Data verified August 2026

Top 25 Cybersecurity defense contractors based in Brazil

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 528 companies tracked

There are 528 cybersecurity defense contractors headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 6,451 professional contacts across them, including 1,973 with verified work emails and 232 with mobile numbers. Sao Paulo is the largest hub.

This list covers cybersecurity defense contractors 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.

528Companies

6,451Contacts tracked

1,973Verified emails

232Mobile numbers

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The 25 largest cybersecurity defense contractors based in Brazil

Ranked by team size

Top 25 of 528 cybersecurity defense contractors 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	Tempest Security Intelligence	Recife	201-500	384	182
4	Oplium	Rio De Janeiro	201-500	228	104
5	Redbelt Security	Sao Paulo	51-200	214	91
6	Stefanini Cyber	Sao Paulo	501-1,000	197	4
7	Future Technologies	Petropolis	51-200	144	60
8	Under Protection	Pinhais Alphaville	51-200	125	57
9	CG ONE	Sao Paulo	51-200	119	30
10	Network Secure	Fortaleza	51-200	116	60
11	Apura Cyber Corp	Brasilia	51-200	82	53
12	Foregenix	Sao Paulo	51-200	80	61
13	Altasnet	Belo Horizonte	51-200	71	34
14	OL Tecnologia	Sao Paulo	51-200	68	23
15	CPD	Brasilia Df	51-200	59	22
16	Deltapoint	Sao Paulo	51-200	57	22
17	Dfense	Sao Paulo	51-200	55	22
18	RSEC	Brasilia	51-200	55	5
19	Berghem	Sao Paulo	51-200	54	21
20	Cylk Technologing	Sao Paulo	51-200	49	21
21	I DO	Rio De Janeiro	11-50	47	2
22	Itprotect Brasil	Belem	11-50	46	22
23	Next4sec Security Intelligence	Sao Paulo	51-200	43	13
24	Jc2sec	Sao Paulo	51-200	41	26
25	Itdemand	Catalao	11-50	38	23

Showing 25 of 528 cybersecurity defense contractors based in Brazil

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Cybersecurity defense contractors based in Brazil at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sao PauloLargest hub · 189 HQs

232Contacts with mobile numbers

4Emails re-verified in last 30 days

Companies by employee count

1-10

273

11-50

203

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity defense contractors by metro

Metro	Companies
Cybersecurity defense contractors in Sao Paulo	189
Cybersecurity defense contractors in Rio De Janeiro	42
Cybersecurity defense contractors in Belo Horizonte	25
Cybersecurity defense contractors in Brasilia	22
Cybersecurity defense contractors in Curitiba	20
Cybersecurity defense contractors in Barueri	15
Cybersecurity defense contractors in Porto Alegre	11
Cybersecurity defense contractors in Florianopolis	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 “cybersecurity defense contractors”, 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 contractors are there based in Brazil?

There are 528 cybersecurity defense contractors 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 contractors?

Sao Paulo leads with 189 headquartered companies, followed by Rio De Janeiro (42) 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 1,973 verified decision-maker contacts tracked across these 528 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.