Company lists · Data refreshed November 2026

Top 8 Oil and gas fabrication companies based in Portugal

RevenueBase identified 31 company matches for oil and gas fabrication companies associated with Portugal as of November 2026 and tracks 966 professional contacts across them, including 138 with verified work emails. Estarreja is the largest hub.

This list covers company matches for oil and gas fabrication companies associated with Portugal, 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
31Companies
966Contacts tracked
138Verified emails
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The 8 largest oil and gas fabrication companies based in Portugal

Ranked by team size
Top 8 of 31 company matches for oil and gas fabrication companies based in Portugal, 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 matchOeiras, PortugalHQ recorded Nov 4, 202651-20078 contacts →

Exact match

“After 30 years of existence, SIMI has achieved a leading position in Portugal and worldwide in mechanical activities in Piping, Steel Tanks, Structural Steel and Equipments…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2Exact matchLisbon, PortugalHQ recorded Nov 4, 202611-5033 contacts →

Exact match

“TISSOT Industrie | Excelência industrial sob medida desde 1942.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchOliveira De Azeméis, PortugalHQ recorded Nov 4, 202651-20029 contacts →

Exact match

“Our technical department offers rigor in the study, development and execution of equipment for the industry, based on long experience.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchEstarreja, PortugalHQ recorded Nov 4, 20261-1010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchVila Nova Da Telha, PortugalHQ recorded Nov 4, 202651-2007 contacts →

Exact match

“A Tubival - Instalações Industriais, Lda, actua principalmente na concepção, projecto e fornecimento de Instalações e Equipamentos industriais, especialmente nos domínios da…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchMachico, PortugalHQ recorded Nov 4, 202611-507 contacts →

Exact match

“A Vapor ilhas é uma empresa solidamente implantada no mercado regional da Madeira desde 2004 e que se tem expandido com obras em no Reino Unido, Mali e Arábia Saudita desde 2012.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchAveiro, PortugalHQ recorded Nov 4, 202611-506 contacts →

Exact match

“A Eng & Steel, Lda.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchEsposende, PortugalHQ recorded Nov 4, 202611-502 contacts →

Exact match

“Somos uma empresa especializada no pré-fabrico e montagem industrial, tal como mecânica e tubagem, construção e reparação de tanques, instalação de sistemas de refrigeração, bem…”

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

Showing 8 of 31 oil and gas fabrication companies based in Portugal

See the full list, filter by size, metro and specialty, and access 138 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas fabrication companies based in Portugal at a glance

As of Nov 4, 2026
14.3%Verified-email coverage
31.2Average contacts per company
11-50Median size (employees)
9.7%Largest-city concentration · Estarreja
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
5
11-50
14
51-200
9
201-500
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 31 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 Portugal whose business descriptions match “oil and gas fabrication companies” 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 138 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.

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 fabrication companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas fabrication companies are there based in Portugal?

RevenueBase identified 31 company matches for oil and gas fabrication companies associated with Portugal 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?

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

Which city has the most oil and gas fabrication companies?

Estarreja leads with 3 company records, followed by Lisbon (3) and Viana Do Castelo (3).

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 138 professional contacts with verified work emails tracked across these 31 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.