Company lists · Data refreshed September 2026

Top 25 Energy infrastructure companies based in Portugal

Name: Energy infrastructure companies based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 48 companies tracked

RevenueBase identified 48 energy infrastructure companies headquartered in Portugal as of September 2026 and tracks 8,177 professional contacts across them, including 3,142 with verified work emails. Lisboa is the largest hub.

This list covers energy infrastructure companies headquartered in Portugal, 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 16, 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 16, 2026 86% judged on-target in blind review

48Companies

8,177Contacts tracked

3,142Verified emails

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The 25 largest energy infrastructure companies based in Portugal

Ranked by team size

Top 25 of 48 energy infrastructure companies based in Portugal, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure 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	GALP	Partial evidence	Alcântara, PortugalHQ checked Sep 16, 2026	5,001-10,000	4,960 contacts →
	Partial evidence “Galp is an energy company committed to the development of efficient solutions in its operations and in the integrated services it offers to customers.” Source: RevenueBase Database · checked Sep 16, 2026
2	REN	Partial evidence	Lisbon, PortugalHQ checked Sep 16, 2026	501-1,000	1,131 contacts →
	Partial evidence “REN - Redes Energéticas Nacionais operates in two major areas: • The transmission in very high voltage electricity and overall technical management of the National Electricity…” Source: RevenueBase Database · checked Sep 16, 2026
3	E-Redes	Partial evidence	Lisbon, PortugalHQ checked Sep 16, 2026	1,001-5,000	902 contacts →
	Partial evidence “Desde 1976 que o nosso propósito é distribuir energia ao país e fazer da nossa energia uma energia única.” Source: RevenueBase Database · checked Sep 16, 2026
4	Painhas SA	Indirect evidence	Viana Do Castelo, PortugalHQ checked Sep 16, 2026	501-1,000	229 contacts →
	Indirect evidence “A PAINHAS, S.A.” Source: RevenueBase Database · checked Sep 16, 2026
5	JDC Jayme DA Costa	Indirect evidence	Grijó, PortugalHQ checked Sep 16, 2026	51-200	146 contacts →
	Indirect evidence “Com mais de 100 anos de atividade, mas com a capacidade de executar de uma estrutura jovem e dinâmica, a JdC é hoje uma empresa nacional focada no desenvolvimento tecnológico de…” Source: RevenueBase Database · checked Sep 16, 2026
6	Sisint	Indirect evidence	Canelas, PortugalHQ checked Sep 16, 2026	51-200	84 contacts →
	Indirect evidence “Leadership in the equipments and electrical systems for the innovation, competitiveness, service, quality and respect for the Environment and Security.” Source: RevenueBase Database · checked Sep 16, 2026
7	Artifel, S.A	Partial evidence	Lisbon, PortugalHQ checked Sep 16, 2026	501-1,000	65 contacts →
	Partial evidence “Fixed Access Infrastructure sector focuses on wireline broadband systems and related technologies that are deployed in the access portion of service provider networks, which…” Source: RevenueBase Database · checked Sep 16, 2026
8	Silva & Vinha S.A	Indirect evidence	Penafiel, PortugalHQ checked Sep 16, 2026	201-500	54 contacts →
	Indirect evidence “A Silva & Vinha, S.A.” Source: RevenueBase Database · checked Sep 16, 2026
9	Master Vantagem Portugal	Partial evidence	Benedita, PortugalHQ checked Sep 16, 2026	11-50	49 contacts →
	Partial evidence “ℹ Desde 2013, a Master Vantagem tem sido um nome de referência no mercado energético, tanto em Portugal como em Espanha.” Source: RevenueBase Database · checked Sep 16, 2026
10	Winpower, S.A	Partial evidence	Lisboa, PortugalHQ checked Sep 16, 2026	51-200	46 contacts →
	Partial evidence “WinPower is an engineering company with more than 30 years of experience in the energy sector, and references of power generation projects in Europe, Africa, and America.” Source: RevenueBase Database · checked Sep 16, 2026
11	Elergone Energia	Partial evidence	Leça Da Palmeira, PortugalHQ checked Sep 16, 2026	11-50	42 contacts →
	Partial evidence “Com um histórico de mais de 15 anos no setor da energia, a Elergone Energia oferece aos seus clientes uma visão global e estratégica na sustentabilidade energética, económica e…” Source: RevenueBase Database · checked Sep 16, 2026
12	Resul Equipamentos Energia , SA	Partial evidence	Bobadela, PortugalHQ checked Sep 16, 2026	51-200	36 contacts →
	Partial evidence “Resul defines itself as an intelligent and creative company committed to studying, designing, developing, producing and offering solutions for equipment supply for energy…” Source: RevenueBase Database · checked Sep 16, 2026
13	Enforce	Indirect evidence	Covilhã, PortugalHQ checked Sep 16, 2026	11-50	30 contacts →
	Indirect evidence “A Enforce foi fundada há 10 anos resultando da transformação da empresa João Nuno Serra Lda.” Source: RevenueBase Database · checked Sep 16, 2026
14	Value Element Engineering Solutions	Partial evidence	Paços De Ferreira, PortugalHQ checked Sep 16, 2026	11-50	26 contacts →
	Partial evidence “No atual contexto energético e ambiental, a importância da produção de eletricidade através de fontes de Energia Renovável é o ponto-chave na contribuição da descarbonização do…” Source: RevenueBase Database · checked Sep 16, 2026
15	Powergroup	Indirect evidence	Paredes, PortugalHQ checked Sep 16, 2026	51-200	23 contacts →
	Indirect evidence “We work and grow together!” Source: RevenueBase Database · checked Sep 16, 2026
16	Construline Eletricidade LDA	Indirect evidence	Romeira, PortugalHQ checked Sep 16, 2026	51-200	18 contacts →
	Indirect evidence “A Construline dedica-se à construção e manutenção de infraestruturas elétricas, contando com profissionais qualificados.” Source: RevenueBase Database · checked Sep 16, 2026
17	Voltel	Indirect evidence	Santa Catarina Da Serra, PortugalHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “A Voltel – Instalações Técnicas de Electricidade, Lda.” Source: RevenueBase Database · checked Sep 16, 2026
18	Dourogás	Indirect evidence	Vila Real, PortugalHQ checked Sep 16, 2026	51-200	10 contacts →
	Indirect evidence “A história do Grupo Dourogás leva-nos até 1994, altura em que o norte interior fica de fora da concessão da Rede Nacional de Gás Natural, o que acaba por se tornar a grande…” Source: RevenueBase Database · checked Sep 16, 2026
19	Solgás	Indirect evidence	Marco De Canaveses, PortugalHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “A Solgás foi fundada em 1979, por José Fernando Pinheiro Ribeiro em Marco de Canaveses, como empresa de comércio e distribuição de gás.” Source: RevenueBase Database · checked Sep 16, 2026
20	Geometric Talks	Partial evidence	Porto, PortugalHQ checked Sep 16, 2026	51-200	7 contacts →
	Partial evidence “Na Geometric Talks, contamos com uma vasta experiência e conhecimento especializado em projetos de energia elétrica.” Source: RevenueBase Database · checked Sep 16, 2026
21	Faixa Vertical	Indirect evidence	Cidade Da Maia, PortugalHQ checked Sep 16, 2026	51-200	5 contacts →
	Indirect evidence “Faixa Vertical is an electrical utilities company based out of Maia, Portugal, specializing in Transformer Substations, Medium and Low Voltage systems.” Source: RevenueBase Database · checked Sep 16, 2026
22	Trineg	Indirect evidence	Vila Nova De Gaia, PortugalHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “TRINEG is an engineering company based in Vila Nova de Gaia, Portugal, specialized in providing high-value technical services.” Source: RevenueBase Database · checked Sep 16, 2026
23	AMIEL	Partial evidence	Vila Nova De Gaia, PortugalHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “A nossa equipa possui uma vasta experiência na área energética.” Source: RevenueBase Database · checked Sep 16, 2026
24	HT Solutions Engenharia	Partial evidence	Carvoeiro, PortugalHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “A HT Solutions Engenharia,lda especializou-se no sector da Energia, nomeadamente na produção de energia através de fontes renováveis, na sua distribuição em baixa e média tensão e…” Source: RevenueBase Database · checked Sep 16, 2026
25	Marques & Sousa - Energia S.A	Partial evidence	Caldas Da Rainha, PortugalHQ checked Sep 16, 2026	11-50	1 contacts →
	Partial evidence “A MARQUES & SOUSA – ENERGIA é uma empresa dedicada ao sector energético que desenvolve a sua atividade no segmento industrial, comercial, serviços e doméstico.” Source: RevenueBase Database · checked Sep 16, 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: energy infrastructure 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 energy infrastructure companies.
Partial evidence: Its own public description names part of energy infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure 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 48 energy infrastructure companies based in Portugal

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Energy infrastructure companies based in Portugal at a glance

As of Sep 16, 2026

38.4%Verified-email coverage

170.4Average contacts per company

11-50Median size (employees)

10.4%Largest-city concentration · Lisboa

Sep 16, 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 worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 48 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 energy infrastructure 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 Portugal whose own description of what they do matches “energy infrastructure 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 energy infrastructure 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 energy infrastructure companies, and records with no verified work email. Companies headquartered outside Portugal 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, 3,142 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 16, 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 energy infrastructure 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 energy infrastructure companies are there based in Portugal?

RevenueBase identified 48 energy infrastructure companies headquartered in Portugal 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?

GALP, headquartered in Portugal, tops this list with the largest team on record.

Which city has the most energy infrastructure companies?

Lisboa leads with 5 headquartered companies, followed by Bobadela (2) and Rio Tinto (2).

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 3,142 verified decision-maker contacts tracked across these 48 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 16, 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.