Company lists · Data refreshed September 2026

Top 25 Petroleum engineering companies based in Brazil

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 283 companies tracked

RevenueBase identified 283 petroleum engineering companies headquartered in Brazil as of September 2026 and tracks 10,402 professional contacts across them, including 1,027 with verified work emails. Rio De Janeiro is the largest hub.

This list covers petroleum engineering 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 17, 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 17, 2026 86% judged on-target in blind review

283Companies

10,402Contacts tracked

1,027Verified emails

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The 25 largest petroleum engineering companies based in Brazil

Ranked by team size

Top 25 of 283 petroleum engineering companies based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum engineering 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	Qualidados Engenharia	Indirect evidence	Salvador, BrazilHQ checked Sep 17, 2026	501-1,000	927 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	Techocean Engineering Solutions	Partial evidence	Macaé, BrazilHQ checked Sep 17, 2026	501-1,000	751 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
3	Grupo Sereng	Indirect evidence	Vitória, BrazilHQ checked Sep 17, 2026	201-500	707 contacts →
	Indirect evidence “A SERENG é uma empresa de engenharia especializada em Projetos, Consultoria, Gerenciamento, Apoio Técnico e Gestão de Ativos (Manutenção), atuando nos mais diversos segmentos…” Source: RevenueBase Database · checked Sep 17, 2026
4	ACV Tecline Engenharia Ltda	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	501-1,000	557 contacts →
	Indirect evidence “A ACV Tecline é uma empresa especializada na prestação de serviços voltados, principalmente, para empresas do setor de energia, com destaque para as áreas de petróleo e gás.” Source: RevenueBase Database · checked Sep 17, 2026
5	Petroeng	Indirect evidence	Lauro De Freitas, BrazilHQ checked Sep 17, 2026	201-500	455 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
6	VIA Networks Engenharia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	1,001-5,000	435 contacts →
	Indirect evidence “A Via Networks é uma empresa mineira especializada na prestação de serviços de engenharia.” Source: RevenueBase Database · checked Sep 17, 2026
7	Norteng Engenharia	Indirect evidence	São Gonçalo Do Amarante, BrazilHQ checked Sep 17, 2026	501-1,000	391 contacts →
	Indirect evidence “A Norteng Engenharia destaca-se por sua trajetória de competência e responsabilidade, na realização de empreendimentos em todo território nacional.” Source: RevenueBase Database · checked Sep 17, 2026
8	OIL States Brasil	Partial evidence	Macaé, BrazilHQ checked Sep 17, 2026	1,001-5,000	309 contacts →
	Partial evidence “Oil States Brasil Macaé Facility is the 24/7 ONE STOP SHOP, with Engineering, Project Management, Machinery/Fabrication, Specialized Welding, Cladding, TSA, Testing, segregated…” Source: RevenueBase Database · checked Sep 17, 2026
9	Walm BH Engenharia	Partial evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	201-500	252 contacts →
	Partial evidence “Walm BH Engenharia is a company that operates in the areas of Geotechnical Engineering, Hydrology, Hydraulics, Hydrogeology, Engineering Geology, Rock Mechanics, and Environment &…” Source: RevenueBase Database · checked Sep 17, 2026
10	Estima Engenharia	Indirect evidence	Três Lagoas, BrazilHQ checked Sep 17, 2026	201-500	177 contacts →
	Indirect evidence “Uma tradição de excelência.” Source: RevenueBase Database · checked Sep 17, 2026
11	AP Consultoria E Projetos	Indirect evidence	Salvador, BrazilHQ checked Sep 17, 2026	51-200	134 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
12	GP Consultoria E Engenharia Ltda	Indirect evidence	Salvador, BrazilHQ checked Sep 17, 2026	51-200	118 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
13	Petroserv S.A	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	102 contacts →
	Indirect evidence “PETROSERV was founded in 1972.” Source: RevenueBase Database · checked Sep 17, 2026
14	S5 Engenharia	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	51-200	83 contacts →
	Indirect evidence “A S5 Engenharia é uma empresa focada no desenvolvimento de soluções em projetos industriais multidisciplinares incluindo as áreas de mecânica, tubulação, civil, elétrica e…” Source: RevenueBase Database · checked Sep 17, 2026
15	Equatorial Energia Maranhão	Indirect evidence	Caxias, BrazilHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Equatorial Energia Maranhão is an oil & energy company based out of R.” Source: RevenueBase Database · checked Sep 17, 2026
16	Geodeep	Indirect evidence	Maceió, BrazilHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “A GEODEEP é uma empresa especializada em diversos tipos de serviços onshore, offshore e zona de transição, em especial, levantamentos de dados geofísicos, geológicos e geotécnicos.” Source: RevenueBase Database · checked Sep 17, 2026
17	Thermotite DO Brasil Ltda	Indirect evidence	Serra, BrazilHQ checked Sep 17, 2026	51-200	64 contacts →
	Indirect evidence “A THERMOTITE DO BRASIL LTDA destaca-se como uma empresa inovadora e experiente no fornecimento de serviços de energia integrados, oferecendo uma ampla gama de soluções baseados em…” Source: RevenueBase Database · checked Sep 17, 2026
18	Tec3 Geotecnia E Recursos Hidricos	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 17, 2026	51-200	62 contacts →
	Indirect evidence “A Tec3 é uma empresa de engenharia de projetos especializada em recursos hídricos e geotecnia aplicados aos setores de mineração, hidroenergia, óleo e gás.” Source: RevenueBase Database · checked Sep 17, 2026
19	Daimon Engenharia E Sistemas	Indirect evidence	São Paulo, BrazilHQ checked Sep 17, 2026	11-50	49 contacts →
	Indirect evidence “A Daimon é uma empresa de engenharia altamente especializada em serviços de regulação, desenvolvimento de soluções em software, estudos e projetos de pesquisa e desenvolvimento e…” Source: RevenueBase Database · checked Sep 17, 2026
20	Petrolane	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Fundada em 1991, a Petrolane tem como objetivo principal a produção, representação e comercialização de equipamentos de prospecção, produção e medição, de origem nacional e/ou…” Source: RevenueBase Database · checked Sep 17, 2026
21	Geocenter Consultoria	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “A empresa atua nas áreas de consultoria, assessoramento e elaboração de projetos no segmento de geologia, engenharia consultiva e meio ambiente.” Source: RevenueBase Database · checked Sep 17, 2026
22	Idea Petroleum	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	11-50	37 contacts →
	Indirect evidence “IDEA Group is an international service provider of innovative and integrated solutions for the energy industry, desined to reduce the operating costs of our customers.” Source: RevenueBase Database · checked Sep 17, 2026
23	Transcontrol Offshore	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “Somos uma empresa especializada em soluções completas para a indústria de óleo e gás.” Source: RevenueBase Database · checked Sep 17, 2026
24	Toveri Gerenciamento DE Projetos Integrados	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	n/a	34 contacts →
	Indirect evidence “Somos uma consultoria especializada para a Exploração e Produção de Petróleo e Gás e outros setores no Brasil.” Source: RevenueBase Database · checked Sep 17, 2026
25	Plus Natural Resources	Partial evidence	Lagoa, BrazilHQ checked Sep 17, 2026	11-50	32 contacts →
	Partial evidence “We are a global engineering and project management company dedicated to supporting our clients increase productivity and realize critical investments.” Source: RevenueBase Database · checked Sep 17, 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: petroleum engineering 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 petroleum engineering companies.
Partial evidence: Its own public description names part of petroleum engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum engineering 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 283 petroleum engineering companies based in Brazil

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Petroleum engineering companies based in Brazil at a glance

As of Sep 17, 2026

9.9%Verified-email coverage

36.8Average contacts per company

11-50Median size (employees)

20.5%Largest-city concentration · Rio De Janeiro

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

128

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 283 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 petroleum engineering 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 “petroleum engineering 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 petroleum engineering 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 petroleum engineering 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, 1,027 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 17, 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.

Petroleum engineering companies by metro

Petroleum engineering companies in Rio De Janeiro58
Petroleum engineering companies in Belo Horizonte26

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 petroleum engineering 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 petroleum engineering companies are there based in Brazil?

RevenueBase identified 283 petroleum engineering 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?

Qualidados Engenharia, headquartered in Salvador, tops this list with the largest team on record.

Which city has the most petroleum engineering companies?

Rio De Janeiro leads with 58 headquartered companies, followed by Belo Horizonte (26) and Macae (16).

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 1,027 verified decision-maker contacts tracked across these 283 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 17, 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.