Company lists · Data refreshed October 2026

Top 25 Downstream oil and gas contractors based in Brazil

RevenueBase identified 259 company matches for downstream oil and gas contractors associated with Brazil as of October 2026 and tracks 30,479 professional contacts across them, including 2,446 with verified work emails. Rio De Janeiro is the largest hub.

This list covers company matches for downstream oil and gas contractors associated with Brazil, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 11, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 11, 2026 How this list was built
259Companies
30,479Contacts tracked
2,446Verified emails
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The 25 largest downstream oil and gas contractors based in Brazil

Ranked by team size
Top 25 of 259 company matches for downstream oil and gas contractors based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchVolta Redonda, BrazilHQ recorded Oct 11, 202610001+3,994 contacts →

Exact match

“Somos a CBSI!”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchSão Paulo, BrazilHQ recorded Oct 11, 202610001+3,755 contacts →

Exact match

“The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchPorto Alegre, BrazilHQ recorded Oct 11, 20261,001-5,0002,795 contacts →

Exact match

“Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchSão Paulo, BrazilHQ recorded Oct 11, 20261,001-5,0002,354 contacts →

Exact match

“Fundada em 1971, a Montcalm tem como missão, oferecer soluções de engenharia construtiva para implantação, ampliação e manutenção de indústrias de processos, sempre com o…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 20261,001-5,0002,328 contacts →

Exact match

“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchMacaé, BrazilHQ recorded Oct 11, 20261,001-5,0002,006 contacts →

Exact match

“No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 20261,001-5,000947 contacts →

Exact match

“A MPE ENGENHARIA E SERVIÇOS atua, em todo o território nacional, de forma inovadora, desenvolvendo soluções diferenciadas em projetos, construções, reformas, montagens…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 2026501-1,000842 contacts →

Exact match

“Forship offers specialized engineering services and integrated solutions for industrial assets across sectors such as Oil & Gas (Onshore and Offshore), Petrochemical…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchVitória, BrazilHQ recorded Oct 11, 2026201-500778 contacts →

Exact match

“A SERENG é uma empresa de engenharia especializada em Projetos, Consultoria, Gerenciamento, Apoio Técnico e Gestão de Ativos (Manutenção), atuando nos mais diversos segmentos…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchMacaé, BrazilHQ recorded Oct 11, 2026501-1,000776 contacts →

Exact match

“Techocean is a supplier of engineering services focused on the oil & gas industry, creating solutions for steel fabrications as Platforms, Piping Lines, Several Structures and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchRio Das Ostras, BrazilHQ recorded Oct 11, 2026501-1,000538 contacts →

Exact match

“Fundada em outubro de 1984, a C.S.E.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchLauro De Freitas, BrazilHQ recorded Oct 11, 2026201-500468 contacts →

Exact match

“Uma empresa de engenharia de médio porte, que atua em vários segmentos tais como, projetos, gerenciamento, planejamento e assistência a montagens industriais, desde o projeto…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchSão Gonçalo Do Amarante, BrazilHQ recorded Oct 11, 2026501-1,000424 contacts →

Exact match

“A Norteng Engenharia destaca-se por sua trajetória de competência e responsabilidade, na realização de empreendimentos em todo território nacional.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchMacaé, BrazilHQ recorded Oct 11, 20261,001-5,000340 contacts →

Exact match

“Oil States Brasil Macaé Facility is the 24/7 ONE STOP SHOP, with Engineering, Project Management, Machinery/Fabrication, Specialized Welding, Cladding, TSA, Testing, segregated…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchSão José, BrazilHQ recorded Oct 11, 2026501-1,000237 contacts →

Exact match

“Since 1996, Conenge-SC has been active in the engineering and construction market in Brazil, starting its activities on the Florianópolis Sewage Collection and Treatment System.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 2026501-1,000231 contacts →

Exact match

“Construtora Colares Linhares is a civil engineering company based out of R Da Ajuda, 35, Andar Salao 1401, Rio De Janeiro, Rio De Janeiro, Brazil.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchLauro De Freitas, BrazilHQ recorded Oct 11, 2026n/a159 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchRio De Janeiro, BrazilHQ recorded Oct 11, 2026201-500151 contacts →

Exact match

“A Oilequip Produtos e Serviços Ltda.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchSalvador, BrazilHQ recorded Oct 11, 202651-200135 contacts →

Exact match

“A AP consultoria iniciou suas atividades em 1993, como uma empresa voltada a execução de projetos de engenharia civil e atua desde em projetos multidisciplinares (Processo…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchSalvador, BrazilHQ recorded Oct 11, 202651-200123 contacts →

Exact match

“Criada em 2002 para atuar nacionalmente, a GP iniciou suas atividades no mercado de O&G, Petroquímica e Química, atuando em serviços multidisciplinares de engenharia de projetos…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchChapecó, BrazilHQ recorded Oct 11, 2026201-500123 contacts →

Exact match

“Construir com Excelência!”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchSalvador, BrazilHQ recorded Oct 11, 2026201-500120 contacts →

Exact match

“Maintenance and Industrial Services with a focus on quality and a consolidated standard of excellence in the oil and gas area”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchMauá, BrazilHQ recorded Oct 11, 2026501-1,000118 contacts →

Exact match

“Desenvolvemos e implementamos soluções de engenharia inovadoras e personalizadas, assegurando excelência, segurança, eficiência e sustentabilidade em cada projeto.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchSapucaia Do Sul, BrazilHQ recorded Oct 11, 202651-200115 contacts →

Exact match

“A AJS INDÚSTRIA E SERVIÇOS é uma empresa especializada em fabricação, montagem e manuteção indústrial, com sede em Sapucaia do Sul, região metropolitana de Porto Alegre.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchPorto Alegre, BrazilHQ recorded Oct 11, 202651-200103 contacts →

Exact match

“A S5 Engenharia é uma empresa focada no desenvolvimento de soluções em projetos industriais multidisciplinares incluindo as áreas de mecânica, tubulação, civil, elétrica e…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 259 downstream oil and gas contractors based in Brazil

See the full list, filter by size, metro and specialty, and access 2,446 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downstream oil and gas contractors based in Brazil at a glance

As of Oct 11, 2026
8.0%Verified-email coverage
117.7Average contacts per company
11-50Median size (employees)
17.8%Largest-city concentration · Rio De Janeiro
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
84
51-200
65
201-500
16
501-1,000
18
1,001-5,000
14
5,001-10,000
1
10001+
2

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 259 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Brazil whose business descriptions match “downstream oil and gas contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,446 professional contacts with verified work emails across the full matched dataset. 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 October 11, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Downstream oil and gas contractors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “downstream oil and gas contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downstream oil and gas contractors are there based in Brazil?

RevenueBase identified 259 company matches for downstream oil and gas contractors associated with Brazil as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

CBSI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most downstream oil and gas contractors?

Rio De Janeiro leads with 46 company records, followed by Macae (21) and Sao Paulo (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,446 professional contacts with verified work emails tracked across these 259 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 11, 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.