Company lists · Data verified August 2026

Top 13 Construction site security companies based in Brazil

Name: Construction site 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 304 companies tracked

There are 304 construction site security companies headquartered in Brazil (RevenueBase, August 2026). RevenueBase tracks 8,296 professional contacts across them, including 183 with verified work emails and 41 with mobile numbers. Sao Paulo is the largest hub.

This list covers construction site 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.

304Companies

8,296Contacts tracked

183Verified emails

41Mobile numbers

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The 13 largest construction site security companies based in Brazil

Ranked by team size

Top 13 of 304 construction site 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	Fort Knox	Sao Paulo	5,001-10,000	564	9
2	Embraps	Santos	1,001-5,000	320	3
3	Grupo SEI Segurança E Inteligência	Serra	1,001-5,000	283	1
4	Gruposeg Oficial	Recife	501-1,000	141	6
5	Interfort Segurança DE Valores Ltda	Recife	201-500	111	4
6	Grupo Hawk	Rio De Janeiro	501-1,000	111	2
7	Dotseg	Sao Paulo	501-1,000	95	4
8	Gentt Segurança E Facilities	Sao Paulo	501-1,000	82	3
9	Atentare Serviços	Ribeirao Preto	51-200	33	1
10	Grupo STS	Sao Paulo	201-500	25	1
11	Leão Serviços E Sistemas DE Segurança	Sao Paulo	51-200	14	1
12	Grupo Ponto S	Mogi Das Cruzes	201-500	8	1
13	Celffort Serviços E Monitoramento	Sao Paulo	51-200	6	2

Showing 13 of 304 construction site security companies based in Brazil

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Construction site security companies based in Brazil at a glance

As of Aug 28, 2026

11-50Median size (employees)

Sao PauloLargest hub · 61 HQs

41Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

112

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Construction site security companies by metro

Metro	Companies
Construction site security companies in Sao Paulo	61
Construction site security companies in Porto Alegre	16
Construction site security companies in Curitiba	13
Construction site security companies in Rio De Janeiro	9
Construction site security companies in Belo Horizonte	6
Construction site security companies in Manaus	6
Construction site security companies in Salvador	5
Construction site security companies in Ribeirao Preto	5

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 “construction site 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; 2 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 construction site security companies are there based in Brazil?

There are 304 construction site security companies headquartered in Brazil as of August 2026 (RevenueBase).

What is the largest company on this list?

Fort Knox, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most construction site security companies?

Sao Paulo leads with 61 headquartered companies, followed by Porto Alegre (16) and Curitiba (13).

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 183 verified decision-maker contacts tracked across these 304 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.