Company lists · Data refreshed November 2026

Top 24 Oil and gas exploration consultants based in Rio De Janeiro, Brazil

RevenueBase identified 122 company matches for oil and gas exploration consultants associated with Rio De Janeiro, Brazil as of November 2026 and tracks 9,783 professional contacts across them, including 2,549 with verified work emails. Across Brazil, Rio De Janeiro is the largest hub for this category.

This list covers company matches for oil and gas exploration consultants associated with Rio De Janeiro, 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 November 4, 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 Nov 4, 2026 How this list was built
122Companies
9,783Contacts tracked
2,549Verified emails
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The 24 largest oil and gas exploration consultants based in Rio De Janeiro, Brazil

Ranked by team size
Top 24 of 122 company matches for oil and gas exploration consultants based in Rio De Janeiro, Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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 matchRio De Janeiro, BrazilHQ recorded Nov 4, 20261,001-5,0002,402 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 · Nov 4, 2026 · View company records in RevenueBase
2Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 2026201-500258 contacts →

Exact match

“Somos a OGX, companhia de óleo e gás do Grupo EBX.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 2026201-500155 contacts →

Exact match

“A Oilequip Produtos e Serviços Ltda.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-50109 contacts →

Exact match

“PETROSERV was founded in 1972.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202651-20098 contacts →

Exact match

“We were recognized for our vision of partnership, our capacity to innovate, the importance attributed to the quality of our products and services and respect to safety and the…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 2026201-50075 contacts →

Exact match

“Agora somos Brava Energia!”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 20261,001-5,00060 contacts →

Exact match

“Environmental Consulting, Licensing & Monitoring for Seismic and Drilling Activities.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202651-20048 contacts →

Exact match

“Somos uma empresa especializada em soluções completas para a indústria de óleo e gás.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202651-20039 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
10Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 2026n/a38 contacts →

Exact match

“Somos uma consultoria especializada para a Exploração e Produção de Petróleo e Gás e outros setores no Brasil.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
11Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5037 contacts →

Exact match

“TEKee offers intelligent engineering solutions with a focus on providing a high level of customer satisfaction.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
12Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5031 contacts →

Exact match

“PETREC is a technology-based company, 100% Brazilian, spin-off of COPPE/UFRJ, with headquarters in the Business Incubator of UFRJ, located inside the Technological Park at Ilha do…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
13Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5029 contacts →

Exact match

“Solintec is now part of Core Laboratories.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
14Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5021 contacts →

Exact match

“Geogin provides software and consulting solutions for E&P companies.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
15Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5020 contacts →

Exact match

“We are a consulting company established in 2014 specialized in the Oil & Gas Industry with a multidisciplinary team of consultants with decades of international experience in…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5019 contacts →

Exact match

“Paschoalin operates in business development with emphasis in the oil and gas sector.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
17Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5017 contacts →

Exact match

“ISDB FlowTech is the legal successor of SINTEF Brasil, carrying out applied R&D projects with ongoing and prospective customers.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
18Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5016 contacts →

Exact match

“Rooted in numerical physics and design, CRN Engineering enhances engineering processes, refines concepts, and develops solutions to boost product and operation performance.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
19Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202651-20016 contacts →

Exact match

“Uma empresa global para fornecimento de serviços profissionais e diversificados de petróleo e gás.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
20Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5014 contacts →

Exact match

“Criada em 1992, a Guterres Projetos oferece soluções completas e integradas em serviços de engenharia e consultoria nos setores de Óleo e Gás, Petroquímicos, Lubrificantes e…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
21Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202651-20013 contacts →

Exact match

“Atendemos os setores de Petróleo & Gás, Distribuição de Energia, Construção Civil, Ferrovias, entre outros.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
22Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 20261-1012 contacts →

Exact match

“About us In 2018, Kognitus was founded in Rio de Janeiro, Brazil, to facilitate the adoption of AI technologies and accelerate their insertion into the mainstream of subsurface…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
23Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 202611-5011 contacts →

Exact match

“Created in 2015 with a startup mindset, we are a team of engineers acting with the integrity and robustness of a law firm.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
24Exact matchRio De Janeiro, BrazilHQ recorded Nov 4, 20261-107 contacts →

Exact match

“Nord is a company dedicated to the Exploration and Production (E&P) of oil in the northeast region of Brazil.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 24 of 122 oil and gas exploration consultants based in Rio De Janeiro, Brazil

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Oil and gas exploration consultants based in Rio De Janeiro, Brazil at a glance

As of Nov 4, 2026
26.1%Verified-email coverage
80.2Average contacts per company
1-10Median size (employees)
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
26
51-200
10
201-500
3
501-1,000
4
1,001-5,000
2
5,001-10,000
1

Email recency for this list is measured across the whole Brazil list rather than for Rio De Janeiro, so it is reported there. Company counts and contact totals on this page are exact for Rio De Janeiro, over 122 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 Rio De Janeiro, Brazil whose business descriptions match “oil and gas exploration consultants” 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 2,549 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 November 4, 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.

Oil and gas exploration consultants by metro in Brazil

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 “oil and gas exploration consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas exploration consultants are there based in Rio De Janeiro, Brazil?

RevenueBase identified 122 company matches for oil and gas exploration consultants associated with Rio De Janeiro, Brazil as of November 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?

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

Which city in Brazil has the most oil and gas exploration consultants?

Rio De Janeiro leads Brazil with 122 company records, followed by Belo Horizonte (59) and Macae (33).

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 2,549 professional contacts with verified work emails tracked across these 122 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 November 4, 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.