Company lists · Data refreshed September 2026

Top 25 Marine surveillance companies based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 101 companies tracked

RevenueBase identified 101 marine surveillance companies headquartered in Brazil as of September 2026 and tracks 5,635 professional contacts across them, including 1,140 with verified work emails. Rio De Janeiro is the largest hub.

This list covers marine surveillance companies headquartered in 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

101Companies

5,635Contacts tracked

1,140Verified emails

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The 25 largest marine surveillance companies based in Brazil

Ranked by team size

Top 25 of 101 marine surveillance companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine surveillance companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Grupo CBO	Indirect evidence	Niterói, BrazilHQ checked Sep 20, 2026	1,001-5,000	1,847 contacts →
	Indirect evidence “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: RevenueBase Database · checked Sep 20, 2026
2	Maersk Supply Service	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	201-500	1,407 contacts →
	Indirect evidence “With more than 50 years of legacy, Maersk Supply Service celebrates a new important milestone: from November 1st, our headquarters are officially located in Brazil.” Source: RevenueBase Database · checked Sep 20, 2026
3	Baru Offshore	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	501-1,000	514 contacts →
	Indirect evidence “Empresa Brasileira de Navegação.” Source: RevenueBase Database · checked Sep 20, 2026
4	Global Ship Port Service	Indirect evidence	Salvador, BrazilHQ checked Sep 20, 2026	501-1,000	268 contacts →
	Indirect evidence “Somos a Global Ship, uma empresa líder em operações marítimas e portuárias.” Source: RevenueBase Database · checked Sep 20, 2026
5	Serviços Marítimos Continental	Indirect evidence	Macaé, BrazilHQ checked Sep 20, 2026	201-500	238 contacts →
	Indirect evidence “Com mais de 45 anos de história, realizamos com absoluto sucesso diversos serviços nos mais variados pontos do país, sempre com produtividade e excelência em todas as obras.” Source: RevenueBase Database · checked Sep 20, 2026
6	Rionav	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	99 contacts →
	Indirect evidence “RIONAV é uma Empresa Brasileira de Navegação, licenciada pela ANTAQ (Agência Nacional de Transportes Aquaviários).” Source: RevenueBase Database · checked Sep 20, 2026
7	Corcovado Geosub	Indirect evidence	Macaé, BrazilHQ checked Sep 20, 2026	11-50	72 contacts →
	Indirect evidence “We are a company that offers advanced technology solutions in the Oil and Gas area, carrying out hydrographic surveys using ROV, AUV, USV and conventional surveys, analyzing…” Source: RevenueBase Database · checked Sep 20, 2026
8	RCS Subaquatica	Indirect evidence	Araruama, BrazilHQ checked Sep 20, 2026	11-50	67 contacts →
	Indirect evidence “A RCS Subaquática é uma empresa de mergulho e soluções subaquáticas, criada por engenheiros, técnicos e mergulhadores preocupados com a segurança nas operações de mergulho e com a…” Source: RevenueBase Database · checked Sep 20, 2026
9	Mergulho PRO Consultoria	Indirect evidence	Nova Iguaçu, BrazilHQ checked Sep 20, 2026	11-50	65 contacts →
	Indirect evidence “A Mergulho Pro Consultoria é uma empresa que traz soluções nas áreas de atividades subaquáticas, marítimas e ambientais, formada por profissionais de alto nível.” Source: RevenueBase Database · checked Sep 20, 2026
10	Hidromares By SGS	Indirect evidence	Santos, BrazilHQ checked Sep 20, 2026	51-200	58 contacts →
	Indirect evidence “A HidroMares é uma empresa de consultoria que presta serviços na área de oceanografia, limnologia e meteorologia, atuando desde projetos de monitoramento ambiental até modelagem…” Source: RevenueBase Database · checked Sep 20, 2026
11	Marine Express	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 20, 2026	51-200	54 contacts →
	Indirect evidence “Empresa líder no fornecimentos de equipamentos e serviços para a indústria náutica a mais de 20 anos, representante de marcas líderes mundias no segmento como navegação Eletrônica…” Source: RevenueBase Database · checked Sep 20, 2026
12	CIA Oceânica	Indirect evidence	São Francisco Do Sul, BrazilHQ checked Sep 20, 2026	51-200	51 contacts →
	Indirect evidence “Fundada em 1991, a Cia.” Source: RevenueBase Database · checked Sep 20, 2026
13	Salt Engenharia E Meio Ambiente	Indirect evidence	São Paulo, BrazilHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence “Brazilian company - Environmental Consultancy, Services and Projects:\| Inland fresh-waters \| Estuaries \| Coastal Waters \| Oceanic waters \| We act as a group, divided into three…” Source: RevenueBase Database · checked Sep 20, 2026
14	BRS Robótica Submarina	Indirect evidence	Macaé, BrazilHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence “Founded in 2017, BRS Robótica Submarina operates within the heart of Brazil's thriving Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 20, 2026
15	Deep Blue Serviços Submarinos	Indirect evidence	Angra Dos Reis, BrazilHQ checked Sep 20, 2026	51-200	28 contacts →
	Indirect evidence “Com mais de 35 anos de experiência, somos uma empresa especializada em mergulho profissional e serviços subaquáticos, oferecendo soluções seguras, eficientes e de alta qualidade.” Source: RevenueBase Database · checked Sep 20, 2026
16	Bioconsult Ambiental	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	51-200	26 contacts →
	Partial evidence “A BioConsult Ambiental é uma empresa brasileira, especializada em ambientes costeiros e marinhos, que atua na elaboração, planejamento e execução de projetos, estudos, pesquisas e…” Source: RevenueBase Database · checked Sep 20, 2026
17	Life Safety Comércio E Serviços	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “A LIFE SAFETY é uma empresa especializada no fornecimento de produtos e serviços para o mercado offshore, naval, militar e recreativo, com atuação em todo território nacional.” Source: RevenueBase Database · checked Sep 20, 2026
18	Spectrah Oceanografia E Meio Ambiente	Indirect evidence	Florianópolis, BrazilHQ checked Sep 20, 2026	1-10	21 contacts →
	Indirect evidence “Atuamos na área de meio Ambiente e oceanografia, para a execução de serviços e projetos de análise, anteprojeto, arbitramento, assessoria, assistência, auditoria, avaliação…” Source: RevenueBase Database · checked Sep 20, 2026
19	Naabsa Shipping & Marine Surveyors	Indirect evidence	Santos, BrazilHQ checked Sep 20, 2026	11-50	17 contacts →
	Indirect evidence “On a busy day or a week, we can look after crew changes formalities and handing over process, checking stowage plan and max cargo intake, draft restrictions, ports line-up, making…” Source: RevenueBase Database · checked Sep 20, 2026
20	Hidrotop Construções, Importação E Comércio Ltda	Partial evidence	Santos, BrazilHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “A HIDROTOP é uma empresa de engenharia marítima, fundada em 1987, sediada em Santos/SP, inscrita no Centro de Hidrografia da Marinha do Brasil (CHM), no Centro Almirante Moraes…” Source: RevenueBase Database · checked Sep 20, 2026
21	Aquasub Mergulho Ltda	Indirect evidence	Maricá, BrazilHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Especializada em inspeção, manutenção e reparos subaquáticos, com expertise em pesquisas, assessorias, planejamentos e execução de projetos.” Source: RevenueBase Database · checked Sep 20, 2026
22	Surfguru	Indirect evidence	Recife, BrazilHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “SurfGuru is an ocean intelligence company born from the surf community.” Source: RevenueBase Database · checked Sep 20, 2026
23	Wams Subsea	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “With a massive passion for the innovative technology in the field of offshore surveying and subsea operations WAMS was created as a platform to deliver the best technology to our…” Source: RevenueBase Database · checked Sep 20, 2026
24	Gyromarsat Marine Electronics & Satcom	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “With 45 years of know-how and high level reputation support, the GYROMARSAT is a Marine Electronics, Navigation Systems and Satellite Communications supplier company, supporting…” Source: RevenueBase Database · checked Sep 20, 2026
25	Iron Marine	Partial evidence	Santos, BrazilHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “Iron Marine is a maritime company that works with ship repair and dive solutions based out of Rua São Francisco 306 Santos, São Paulo, Brazil.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: marine surveillance companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names marine surveillance companies.
Partial evidence: Its own public description names part of marine surveillance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine surveillance companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 101 marine surveillance companies based in Brazil

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Marine surveillance companies based in Brazil at a glance

As of Sep 20, 2026

20.2%Verified-email coverage

55.8Average contacts per company

11-50Median size (employees)

26.7%Largest-city concentration · Rio De Janeiro

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 101 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 marine surveillance companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “marine surveillance companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names marine surveillance companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among marine surveillance companies, and records with no verified work email. Companies headquartered outside Brazil 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 its RevenueBase Smart Search 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, 1,140 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 20, 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.

Marine surveillance companies by metro

Marine surveillance companies in Rio De Janeiro27

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names marine surveillance companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many marine surveillance companies are there based in Brazil?

RevenueBase identified 101 marine surveillance companies headquartered in 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 CBO, headquartered in Niteroi, tops this list with the largest team on record.

Which city has the most marine surveillance companies?

Rio De Janeiro leads with 27 headquartered companies, followed by Santos (8) and Macae (7).

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 1,140 verified decision-maker contacts tracked across these 101 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 20, 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 Smart Search, 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.