Company lists · Data refreshed September 2026

Top 25 Energy infrastructure operators based in Portugal

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 61 companies tracked

RevenueBase identified 61 energy infrastructure operators headquartered in Portugal as of September 2026 and tracks 4,186 professional contacts across them, including 1,612 with verified work emails. Lisboa is the largest hub.

This list covers energy infrastructure operators 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

61Companies

4,186Contacts tracked

1,612Verified emails

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The 25 largest energy infrastructure operators based in Portugal

Ranked by team size

Top 25 of 61 energy infrastructure operators 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 operators: 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	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
2	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
3	Mota Engil-Ativ	Indirect evidence	Alverca Do Ribatejo, PortugalHQ checked Sep 16, 2026	1,001-5,000	453 contacts →
	Indirect evidence “Mota-Engil ATIV is the new brand of the Mota-Engil Group that leverages the recognised knowledge and experience of Manvia and Vibeiras, promoting synergies and complementarity in…” Source: RevenueBase Database · checked Sep 16, 2026
4	Sotécnica	Partial evidence	Loures, PortugalHQ checked Sep 16, 2026	501-1,000	295 contacts →
	Partial evidence “Sotécnica, a brand of VINCI Energies, is an integrated engineering solutions company and a multi-technical team in the areas of Electrical Installations, Technical Installations…” Source: RevenueBase Database · checked Sep 16, 2026
5	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
6	Floene	Partial evidence	Lisboa, PortugalHQ checked Sep 16, 2026	201-500	183 contacts →
	Partial evidence “The Floene group is the largest gas distribution operator in Portugal, with the participation and direct management of 9 Gas Distribution Regional Operators (ORDs) and a presence…” Source: RevenueBase Database · checked Sep 16, 2026
7	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
8	Nextbitt	Indirect evidence	Lisbon, PortugalHQ checked Sep 16, 2026	51-200	67 contacts →
	Indirect evidence “We believe that an organization's assets are not just resources to be managed, but strategic sources of efficiency, innovation, and growth.” Source: RevenueBase Database · checked Sep 16, 2026
9	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
10	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
11	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
12	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
13	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
14	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
15	Electro-Minho	Indirect evidence	Viana Do Castelo, PortugalHQ checked Sep 16, 2026	201-500	36 contacts →
	Indirect evidence “Fundada em 1955, a Electro-Minho, Lda.” Source: RevenueBase Database · checked Sep 16, 2026
16	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
17	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
18	Sonorgas S.A	Indirect evidence	Vila Real, PortugalHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “A Sonorgás SA exerce a sua atividade no setor do Gás Natural.” Source: RevenueBase Database · checked Sep 16, 2026
19	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
20	Ifisicas, SA	Strong evidence	Loures, PortugalHQ checked Sep 16, 2026	51-200	15 contacts →
	Strong evidence “Founded in 1995, IFisicas provides services for the installation, maintenance and management of telecommunications, energy and transportation infrastructures, in the national and…” Source: RevenueBase Database · checked Sep 16, 2026
21	Portulogos Energia	Partial evidence	Lisboa, PortugalHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “Comercializadora de eletricidade e gás que oferece serviços de energia 360º.” Source: RevenueBase Database · checked Sep 16, 2026
22	Diverinstal	Partial evidence	Sintra, PortugalHQ checked Sep 16, 2026	51-200	11 contacts →
	Partial evidence “Diverinstal, founded in 2001, is a company that operates in Energy, Telecommunications, Industrial installations.” Source: RevenueBase Database · checked Sep 16, 2026
23	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
24	Wind Hydro & SUN Energy Services	Partial evidence	Lisbon, PortugalHQ checked Sep 16, 2026	11-50	7 contacts →
	Partial evidence “Wind, Hydro & Sun Energy Services is an O&M service provider for renewable energy projects born within the major portuguese renewables group.” Source: RevenueBase Database · checked Sep 16, 2026
25	TEALT	Indirect evidence	Santo Tirso, PortugalHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence 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 operators. 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 operators.
Partial evidence: Its own public description names part of energy infrastructure operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure operators. 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 61 energy infrastructure operators based in Portugal

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Energy infrastructure operators based in Portugal at a glance

As of Sep 16, 2026

38.5%Verified-email coverage

68.6Average contacts per company

11-50Median size (employees)

9.8%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 61 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 operators, 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 operators”. 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 operators), 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 operators, 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, 1,612 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 operators, 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 operators are there based in Portugal?

RevenueBase identified 61 energy infrastructure operators 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?

REN, headquartered in Lisboa, tops this list with the largest team on record.

Which city has the most energy infrastructure operators?

Lisboa leads with 6 headquartered companies, followed by Sintra (3) and Lisbon (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 1,612 verified decision-maker contacts tracked across these 61 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.