Company lists · Data refreshed September 2026

Top 25 Refinery engineering firms based in Rio De Janeiro, Brazil

Name: Refinery engineering firms based in Rio De Janeiro, Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 175 companies tracked

RevenueBase identified 175 refinery engineering firms headquartered in Rio De Janeiro, Brazil as of September 2026 and tracks 8,513 professional contacts across them, including 1,224 with verified work emails. Sao Paulo is the largest hub.

This list covers refinery engineering firms headquartered in Rio De Janeiro, 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

175Companies

8,513Contacts tracked

1,224Verified emails

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The 25 largest refinery engineering firms based in Rio De Janeiro, Brazil

Ranked by team size

Top 25 of 175 refinery engineering firms based in Rio De Janeiro, Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refinery engineering firms: 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	Priner	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	5,001-10,000	2,737 contacts →
	Indirect evidence “Há mais de 40 anos, a Priner se destaca no setor de engenharia industrial e infraestrutura, oferecendo soluções com excelência técnica, seguras e eficientes.” Source: RevenueBase Database · checked Sep 17, 2026
2	REFIT	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	1,406 contacts →
	Indirect evidence “Inaugurada em 1954, a Refit nasceu para ajudar o Brasil a escrever sua história de sucesso no mercado de petróleo.” Source: RevenueBase Database · checked Sep 17, 2026
3	Forship	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	776 contacts →
	Partial evidence “Forship offers specialized engineering services and integrated solutions for industrial assets across sectors such as Oil & Gas (Onshore and Offshore), Petrochemical…” Source: RevenueBase Database · checked Sep 17, 2026
4	CTA Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	540 contacts →
	Indirect evidence “A CTA foi criada em 1995, em Belo Horizonte Minas Gerais, ampliando sua atividade e posicionando sua sede no estado do Rio de Janeiro em Duque de Caxias, próximo ao Pólo…” Source: RevenueBase Database · checked Sep 17, 2026
5	Sandech	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	201-500	383 contacts →
	Partial evidence “SANDECH is an Engineering and Management Consulting company founded in February 2008 in Rio de Janeiro by three Engineers graduated in Chemical and Mechanical Engineering at…” Source: RevenueBase Database · checked Sep 17, 2026
6	Guimar	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	n/a	337 contacts →
	Indirect evidence “Empresa engenharia consultiva” Source: RevenueBase Database · checked Sep 17, 2026
7	Planave S.A.	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	218 contacts →
	Indirect evidence “Empresa atua em Engenharia Consultiva, na execução de estudos, projetos e acompanhamento de obras.” Source: RevenueBase Database · checked Sep 17, 2026
8	Construtora Colares Linhares	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	213 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
9	Rpeotta	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	169 contacts →
	Indirect evidence “A RPEOTTA tem por objetivo a prestação de serviços pautados no compromisso com a excelência em engenharia consultiva em Projetos (Conceitual, Básica e Detalhada), estudo e…” Source: RevenueBase Database · checked Sep 17, 2026
10	Marte Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1,001-5,000	153 contacts →
	Indirect evidence “A Marte Engenharia Ltda é uma empresa de engenharia que oferece serviços de consultoria e projetos de engenharia nas áreas de geração, transmissão e distribuição de energia…” Source: RevenueBase Database · checked Sep 17, 2026
11	PCE Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	501-1,000	147 contacts →
	Indirect evidence “A PCE está apta a atuar numa ampla faixa de especialidades de engenharia, nos mais variados níveis de desenvolvimento de estudos e projetos, para as mais diversas finalidades…” Source: RevenueBase Database · checked Sep 17, 2026
12	Consulpri Consultoria E Projetos Ltda	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	87 contacts →
	Partial evidence “Consulpri Consultoria E Projetos is a engineering company based out of Av Rio Branco, 143, Salas 1101, Rio De Janeiro, Rj, Brazil.” Source: RevenueBase Database · checked Sep 17, 2026
13	NSG Engineering	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	52 contacts →
	Indirect evidence “Big challenges.” Source: RevenueBase Database · checked Sep 17, 2026
14	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
15	Tempore Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	34 contacts →
	Indirect evidence “Há mais de 30 anos, os engenheiros Roberto Bontempo, Mario Wrobel e Marcos Areias somaram suas experiências profissionais para fundar a Tempore, com base em conceitos como…” Source: RevenueBase Database · checked Sep 17, 2026
16	ECP Environmental Solutions	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	33 contacts →
	Indirect evidence “Somos uma empresa de engenharia ambiental que presta serviços de consultoria para empreendimentos em geral, construção civil e indústrias.” Source: RevenueBase Database · checked Sep 17, 2026
17	Tekee Engineering And Services	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	30 contacts →
	Partial evidence “TEKee offers intelligent engineering solutions with a focus on providing a high level of customer satisfaction.” Source: RevenueBase Database · checked Sep 17, 2026
18	MM Engenharia Consultoria E Assessoria Empresarial	Partial evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	23 contacts →
	Partial evidence “MM ENGENHARIA is an Engineering consulting firm specializing in supporting investors and builders in conquering new business, contracting insurance and technical assistance in…” Source: RevenueBase Database · checked Sep 17, 2026
19	CRN	Strong evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	13 contacts →
	Strong evidence “Rooted in numerical physics and design, CRN Engineering enhances engineering processes, refines concepts, and develops solutions to boost product and operation performance.” Source: RevenueBase Database · checked Sep 17, 2026
20	KFC Projetos E Consultoria Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Empresa fundada em 1990 na cidade do Rio de Janeiro.” Source: RevenueBase Database · checked Sep 17, 2026
21	ISEN	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “A ISEN é uma empresa de engenharia focada em serviços de projetos, montagem e comissionamento de instalações e equipamentos industriais.” Source: RevenueBase Database · checked Sep 17, 2026
22	Guterres Projetos	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
23	Hucofre Engenharia E Inovação Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “A HUCOFRE Engenharia e Inovação foi fundada em 2016 por 3 engenheiros que atuavam na área de projetos, e decidiram unir suas experiências e conhecimentos em diferentes…” Source: RevenueBase Database · checked Sep 17, 2026
24	View Engenharia E Automação	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “Nosso maior diferencial é o nosso corpo técnico, composto por projetistas e engenheiros altamente capacitados.” Source: RevenueBase Database · checked Sep 17, 2026
25	Focon Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “A FÓCON é uma empresa de Engenharia Diagnóstica, gerenciamento e perícias que traz em sua essência modernidade aliada à qualidade e eficiência dos projetos.” 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: refinery engineering firms. 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 refinery engineering firms.
Partial evidence: Its own public description names part of refinery engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery engineering firms. 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 175 refinery engineering firms based in Rio De Janeiro, Brazil

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Refinery engineering firms based in Rio De Janeiro, Brazil at a glance

As of Sep 17, 2026

14.4%Verified-email coverage

48.6Average contacts per company

1-10Median size (employees)

212.0%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 175 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 refinery engineering firms, 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 Rio De Janeiro, Brazil whose own description of what they do matches “refinery engineering firms”. 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 refinery engineering firms), 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 refinery engineering firms, and records with no verified work email. Companies headquartered outside Rio De Janeiro 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, 1,224 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.

Refinery engineering firms by metro in Brazil

Refinery engineering firms in Sao Paulo371
Refinery engineering firms in Rio De Janeiro175
Refinery engineering firms in Belo Horizonte166
Refinery engineering firms in Curitiba97
Refinery engineering firms in Porto Alegre69
Refinery engineering firms in Campinas58
Refinery engineering firms in Salvador57
Refinery engineering firms in Goiania49
Refinery engineering firms in Recife45
Refinery engineering firms in Sao Jose Dos Campos44
Refinery engineering firms in Fortaleza33
Refinery engineering firms in Sorocaba33
Refinery engineering firms in Joinville32
Refinery engineering firms in Vitoria29
Refinery engineering firms in Florianopolis26
Refinery engineering firms in Mogi Das Cruzes25

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 refinery engineering firms, 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 refinery engineering firms are there based in Rio De Janeiro, Brazil?

RevenueBase identified 175 refinery engineering firms headquartered in Rio De Janeiro, 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?

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

Which city has the most refinery engineering firms?

Sao Paulo leads with 371 headquartered companies, followed by Rio De Janeiro (175) and Belo Horizonte (166).

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 1,224 verified decision-maker contacts tracked across these 175 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.