Company lists · Data refreshed September 2026
Top 8 Security firms based in Porto Alegre, Brazil
RevenueBase identified 67 security firms headquartered in Porto Alegre, Brazil as of September 2026 and tracks 3,615 professional contacts across them, including 229 with verified work emails. Sao Paulo is the largest hub.
This list covers security firms headquartered in Porto Alegre, Brazil, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 8 largest security firms based in Porto Alegre, Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Grupo EpaviIndirect evidence | 1,243 | |||
“O Grupo Epavi atua, há 50 anos, nos ramos de segurança patrimonial, pessoal e gestão de serviços terceirizados.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 470 | ||||
“A base de um sólido relacionamento deve estar sempre alicerçada em um valor: confiança.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Ensel Segurança PrivadaIndirect evidence | 59 | |||
“Com sede no Rio Grande do Sul, a ENSEL atende diversas regiões do Brasil.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | ProteriscoIndirect evidence | 58 | |||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 | ||||
“O Grupo Casco - Car Security Company - é formado por apaixonados pelo mercado automotivo.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 | ||||
“K2 Security Systems was founded in and our focus is the business and corporate market offering the best products and services in Electronic Security combining certified…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Entrada SeguraIndirect evidence | 4 | |||
“Protegemos o seu condomínio contra fraudes de identidade e autorizações de acesso indevidas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Gollo Soluções EM SegurançaIndirect evidence | 1 | |||
“Desde 2007 no mercado da Segurança Privada, criamos soluções personalizadas utilizando tecnologia de ponta.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 8 of 67 security firms based in Porto Alegre, Brazil
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Security firms based in Porto Alegre, Brazil at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole Brazil list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Porto Alegre, over 67 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Porto Alegre, Brazil whose own description of what they do matches “security firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security firms, and records with no verified work email. Companies headquartered outside Porto Alegre are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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
- Every listed company carries at least one verified work email, 229 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Security firms by metro in Brazil
- Security firms in Sao Paulo426
- Security firms in Rio De Janeiro118
- Security firms in Curitiba73
- Security firms in Porto Alegre67
- Security firms in Belo Horizonte65
- Security firms in Campinas45
- Security firms in Fortaleza39
- Security firms in Guarulhos34
- Security firms in Sorocaba31
- Security firms in Goiania29
- Security firms in Barueri27
- Security firms in Salvador27
- Security firms in Recife26
Frequently asked
How many security firms are there based in Porto Alegre, Brazil?
RevenueBase identified 67 security firms headquartered in Porto Alegre, Brazil as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Grupo Epavi, headquartered in Porto Alegre, tops this list with the largest team on record.
Which city has the most security firms?
Sao Paulo leads with 426 headquartered companies, followed by Rio De Janeiro (118) and Curitiba (73).
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 229 verified decision-maker contacts tracked across these 67 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.