Company lists · Data refreshed September 2026

Top 25 Oil and gas well services based in Brazil

Name: Oil and gas well services based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 125 companies tracked

RevenueBase identified 125 oil and gas well services headquartered in Brazil as of September 2026 and tracks 6,488 professional contacts across them, including 490 with verified work emails. Rio De Janeiro is the largest hub.

This list covers oil and gas well services 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

125Companies

6,488Contacts tracked

490Verified emails

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The 25 largest oil and gas well services based in Brazil

Ranked by team size

Top 25 of 125 oil and gas well services 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 oil and gas well services: 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	OCYAN	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,427 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
2	Braserv Petróleo	Indirect evidence	Alagoinhas, BrazilHQ checked Sep 17, 2026	501-1,000	637 contacts →
	Indirect evidence “Referência de compromisso e seriedade, a Braserv é uma empresa nacional que atua desde 2009 no mercado.” Source: RevenueBase Database · checked Sep 17, 2026
3	Oilequip	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	127 contacts →
	Indirect evidence “A Oilequip Produtos e Serviços Ltda.” Source: RevenueBase Database · checked Sep 17, 2026
4	Lupatech S A	Indirect evidence	Caxias Do Sul, BrazilHQ checked Sep 17, 2026	201-500	106 contacts →
	Indirect evidence “Fundada em 08 de agosto de 1980, a LUPATECH S.A.” Source: RevenueBase Database · checked Sep 17, 2026
5	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
6	GCB Maintenance	Strong evidence	Salvador, BrazilHQ checked Sep 17, 2026	201-500	95 contacts →
	Strong evidence “Maintenance and Industrial Services with a focus on quality and a consolidated standard of excellence in the oil and gas area” Source: RevenueBase Database · checked Sep 17, 2026
7	Itapoços	Indirect evidence	Itabira, BrazilHQ checked Sep 17, 2026	11-50	69 contacts →
	Indirect evidence “A Itapoços é uma empresa especializada em perfuração de poços tubulares profundos.” Source: RevenueBase Database · checked Sep 17, 2026
8	Tubosdrill Oilfield	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	51-200	45 contacts →
	Indirect evidence “Somos Prestadores de Serviços de Inspeção, Manutenção em Tubos de Perfuração, Produção, Revestimentos e Acessórios.” Source: RevenueBase Database · checked Sep 17, 2026
9	Perpec Oilfield Supply Exportação E Importação DE Máquinas Ltda	Indirect evidence	Simões Filho, BrazilHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “Nossa História: Atuando na área petrolífera desde 2011, vem realizando um grande trabalho na comercialização de válvulas, cabeças de produção e revestimento, equipamentos para…” Source: RevenueBase Database · checked Sep 17, 2026
10	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
11	B&s OIL Tools	Partial evidence	Salvador, BrazilHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “A B&S Oil Tools é uma empresa baiana especializada na fabricação e comercialização de equipamentos de subsuperfície para a indústria de petróleo e gás, nas áreas de completação…” Source: RevenueBase Database · checked Sep 17, 2026
12	Superior Energy Services - Brasil	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	29 contacts →
	Indirect evidence “A Superior Energy Services atende às necessidades de perfuração, completação e produção de empresas de petróleo e gás em todo o mundo, através de um portfólio diversificado de…” Source: RevenueBase Database · checked Sep 17, 2026
13	Proinsp Engenharia	Indirect evidence	Rio Das Ostras, BrazilHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence “A PROINSP ENGENHARIA é especialista em serviços industriais para o setor de óleo, gás, energia e obras civis, com 25 anos de experiência.” Source: RevenueBase Database · checked Sep 17, 2026
14	Exen Technology DO Brasil	Strong evidence	Nossa Senhora Do Socorro, BrazilHQ checked Sep 17, 2026	11-50	13 contacts →
	Strong evidence “Exen Technology Corporation brings the best-in-class quality services, people and technology available in our region to help our customers to maxime production in oil and gas…” Source: RevenueBase Database · checked Sep 17, 2026
15	Tecnoil	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “TECNOIL is an oil & energy company based out of Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
16	Ogequip	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “A OGEQUIP é uma empresa especializada no fornecimento de soluções completas em manutenção, venda de equipamentos e produtos para o setor de óleo e gás.” Source: RevenueBase Database · checked Sep 17, 2026
17	Acquapocos	Indirect evidence	Maceio, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	IWS Brasil	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Fundada em 2012 a IWS do Brasil tem sua trajetória marcada pela busca contínua por melhorias, o que lhe garante segurança no que faz.” Source: RevenueBase Database · checked Sep 17, 2026
19	Alpha Drilling	Indirect evidence	Cabiunas, BrazilHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Alpha Drilling foi pensada e projetada para atender as demandas de fabricação e reparos de equipamentos de montagens de BHA e outros do ramo de Petróleo & Gás.” Source: RevenueBase Database · checked Sep 17, 2026
20	Superquip Serviços E Equipamentos Técnicos	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “Criada em 1980 com o objetivo de desenvolver a representação comercial de empresas estrangeiras com foco no mercado de óleo e gás, a SUPERQUIP tornou-se uma empresa preparada para…” Source: RevenueBase Database · checked Sep 17, 2026
21	Prisma Perfuração DE Poços	Indirect evidence	Recife, BrazilHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Empresa consolidada no mercado, a Prisma Perfuração de Poços usa sua vasta experiência técnica para proporcionar aos clientes, os resultados esperados nas perfuração e manutenção…” Source: RevenueBase Database · checked Sep 17, 2026
22	Center Ship Reparos E Montagens Industriais	Indirect evidence	Sao Goncalo, BrazilHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence “Empresa brasileira, situada no estado do Rio de Janeiro, operando no mercado desde 2009.” Source: RevenueBase Database · checked Sep 17, 2026
23	Atlântico Offshore	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Offshore and Onshore Solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Gsteer Energy Solutions	Indirect evidence	Aracaju, BrazilHQ checked Sep 17, 2026	11-50	1 contacts →
	Indirect evidence “Gsteer Energy Services Mission 1.” Source: RevenueBase Database · checked Sep 17, 2026
25	MB Instrumentação	Strong evidence	Natal, BrazilHQ checked Sep 17, 2026	1-10	1 contacts →
	Strong evidence “With 10+ years of experience, the company provides services for Oil Well Cementing, Frac and PVT Labs.” 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: oil and gas well services. 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 oil and gas well services.
Partial evidence: Its own public description names part of oil and gas well services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas well services. 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 125 oil and gas well services based in Brazil

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Oil and gas well services based in Brazil at a glance

As of Sep 17, 2026

7.6%Verified-email coverage

51.9Average contacts per company

11-50Median size (employees)

15.2%Largest-city concentration · Rio De Janeiro

Sep 17, 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 125 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 oil and gas well services, 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 “oil and gas well services”. 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 oil and gas well services), 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 oil and gas well services, 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, 490 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.

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 oil and gas well services, 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 oil and gas well services are there based in Brazil?

RevenueBase identified 125 oil and gas well services 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?

OCYAN, headquartered in Rio De Janeiro, tops this list with the largest team on record.

Which city has the most oil and gas well services?

Rio De Janeiro leads with 19 headquartered companies, followed by Macae (14) and Salvador (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 490 verified decision-maker contacts tracked across these 125 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.