Company lists · Data verified August 2026

Top 25 Cybersecurity consulting for defense based in Brazil

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 547 companies tracked

There are 547 cybersecurity consulting for defense headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 5,565 professional contacts across them, including 1,548 with verified work emails and 227 with mobile numbers. Sao Paulo is the largest hub.

This list covers cybersecurity consulting for defense 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.

547Companies

5,565Contacts tracked

1,548Verified emails

227Mobile numbers

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The 25 largest cybersecurity consulting for defense based in Brazil

Ranked by team size

Top 25 of 547 cybersecurity consulting for defense 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	Under Protection	Pinhais Alphaville	51-200	125	57
6	CG ONE	Sao Paulo	51-200	119	30
7	Network Secure	Fortaleza	51-200	116	60
8	Foregenix	Sao Paulo	51-200	80	61
9	Altasnet	Belo Horizonte	51-200	71	34
10	OL Tecnologia	Sao Paulo	51-200	68	23
11	QOS Tecnologia	Recife	11-50	62	16
12	Dfense	Sao Paulo	51-200	55	22
13	RSEC	Brasilia	51-200	55	5
14	Berghem	Sao Paulo	51-200	54	21
15	Cylk Technologing	Sao Paulo	51-200	49	21
16	Itprotect Brasil	Belem	11-50	46	22
17	Next4sec Security Intelligence	Sao Paulo	51-200	43	13
18	Brasiline Tecnologia	Belo Horizonte	51-200	42	23
19	Jc2sec	Sao Paulo	51-200	41	26
20	Itdemand	Catalao	11-50	38	23
21	NOWCY	Belo Horizonte	11-50	36	12
22	Ibestsec Segurança DA Informação	Barueri	51-200	35	17
23	Protega Managed Cybersecurity	Belo Horizonte	51-200	34	15
24	Pacific SEC	Belo Horizonte	51-200	34	15
25	Duranium	Sao Paulo	11-50	33	8

Showing 25 of 547 cybersecurity consulting for defense based in Brazil

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Cybersecurity consulting for defense based in Brazil at a glance

As of Aug 28, 2026

1-10Median size (employees)

Sao PauloLargest hub · 192 HQs

227Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

308

11-50

196

51-200

201-500

501-1,000

Cybersecurity consulting for defense by metro

Metro	Companies
Cybersecurity consulting for defense in Sao Paulo	192
Cybersecurity consulting for defense in Rio De Janeiro	33
Cybersecurity consulting for defense in Belo Horizonte	24
Cybersecurity consulting for defense in Brasilia	22
Cybersecurity consulting for defense in Barueri	15
Cybersecurity consulting for defense in Curitiba	15
Cybersecurity consulting for defense in Florianopolis	10
Cybersecurity consulting for defense in Recife	10

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 consulting for defense”, 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 cybersecurity consulting for defense are there based in Brazil?

There are 547 cybersecurity consulting for defense 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 consulting for defense?

Sao Paulo leads with 192 headquartered companies, followed by Rio De Janeiro (33) and Belo Horizonte (24).

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 1,548 verified decision-maker contacts tracked across these 547 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.