Company lists · Data refreshed September 2026

Top 25 Electrical infrastructure companies based in Portugal

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 167 companies tracked

RevenueBase identified 167 electrical infrastructure companies headquartered in Portugal as of September 2026 and tracks 3,394 professional contacts across them, including 955 with verified work emails. Lisboa is the largest hub.

This list covers electrical 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 19, 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 19, 2026 86% judged on-target in blind review

167Companies

3,394Contacts tracked

955Verified emails

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The 25 largest electrical infrastructure companies based in Portugal

Ranked by team size

Top 25 of 167 electrical infrastructure companies based in Portugal, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical 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	REN	Partial evidence	Lisbon, PortugalHQ checked Sep 19, 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 19, 2026
2	TCPI	Indirect evidence	Porto Salvo, PortugalHQ checked Sep 19, 2026	201-500	166 contacts →
	Indirect evidence “We are an international E&I Engineering, Construction and Maintenance company operating worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
3	DTE	Indirect evidence	Braga, PortugalHQ checked Sep 19, 2026	51-200	155 contacts →
	Indirect evidence “Acompanhando a constante evolução tecnológica e os novos modos de vida, a dte orgulha-se de ser uma das empresas nacionais de referência na instalação de infraestruturas e…” Source: RevenueBase Database · checked Sep 19, 2026
4	JDC Jayme DA Costa	Indirect evidence	Grijó, PortugalHQ checked Sep 19, 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 19, 2026
5	Sisint	Partial evidence	Canelas, PortugalHQ checked Sep 19, 2026	51-200	84 contacts →
	Partial 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 19, 2026
6	Artifel, S.A	Partial evidence	Lisbon, PortugalHQ checked Sep 19, 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 19, 2026
7	Flosel, LDA	Partial evidence	Braga, PortugalHQ checked Sep 19, 2026	51-200	63 contacts →
	Partial evidence “Flosel adds to buildings a wide variety of specialties under the domains of electrical and hydraulic engineering.” Source: RevenueBase Database · checked Sep 19, 2026
8	Silva & Vinha S.A	Indirect evidence	Penafiel, PortugalHQ checked Sep 19, 2026	201-500	54 contacts →
	Indirect evidence “A Silva & Vinha, S.A.” Source: RevenueBase Database · checked Sep 19, 2026
9	Master Vantagem Portugal	Indirect evidence	Benedita, PortugalHQ checked Sep 19, 2026	11-50	49 contacts →
	Indirect 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 19, 2026
10	RUI & Candeias, LDA	Partial evidence	Sines, PortugalHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “Instrumentação, Manutenção, Electricidade e Construção Civil” Source: RevenueBase Database · checked Sep 19, 2026
11	UNDEL	Indirect evidence	Braga, PortugalHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “A Undel possui atividade principal na área das instalações elétricas em Portugal, privilegiando um serviço de referência e excelência.” Source: RevenueBase Database · checked Sep 19, 2026
12	Morgado	Indirect evidence	Rio Tinto, PortugalHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “Morgado, empresa importadora e distribuidora de materiais e equipamentos elétricos e eletrónicos para as áreas da indústria, construção civil, instalações elétricas e projeto.” Source: RevenueBase Database · checked Sep 19, 2026
13	Resul Equipamentos Energia , SA	Indirect evidence	Bobadela, PortugalHQ checked Sep 19, 2026	51-200	36 contacts →
	Indirect 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 19, 2026
14	Electro-Minho	Indirect evidence	Viana Do Castelo, PortugalHQ checked Sep 19, 2026	201-500	36 contacts →
	Indirect evidence “Fundada em 1955, a Electro-Minho, Lda.” Source: RevenueBase Database · checked Sep 19, 2026
15	RODEL	Indirect evidence	Braga, PortugalHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “Grande experiência na comercialização de material elétrico, a oferta da RODEL cobre todo o leque de necessidade dos profissionais no sector.” Source: RevenueBase Database · checked Sep 19, 2026
16	SKELT	Indirect evidence	Serzedo, PortugalHQ checked Sep 19, 2026	51-200	31 contacts →
	Indirect evidence “Preparados para chegar a todo o mundo, trabalhamos para satisfazer os atuais clientes e conquistar novos parceiros de negócios.” Source: RevenueBase Database · checked Sep 19, 2026
17	Enforce	Indirect evidence	Covilhã, PortugalHQ checked Sep 19, 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 19, 2026
18	Cunha Soares SA	Indirect evidence	Lousada, PortugalHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Empresa pioneira nas atividades de montagem de linhas elétricas, tendo introduzido em Portugal inúmeras inovações no que respeita aos métodos construtivos empregues nesta…” Source: RevenueBase Database · checked Sep 19, 2026
19	Energytop	Indirect evidence	Maia, PortugalHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Fundada em 2002, a EnergyTop é uma empresa vocacionada para soluções integradas ou completas, tipo chave-na-mão, nas áreas de produção de energia, instalações elétricas…” Source: RevenueBase Database · checked Sep 19, 2026
20	Value Element Engineering Solutions	Indirect evidence	Paços De Ferreira, PortugalHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect 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 19, 2026
21	Caiado	Indirect evidence	Leiria, PortugalHQ checked Sep 19, 2026	51-200	24 contacts →
	Indirect evidence “Em 1974 nasceu a Caiado - Distribuidora de Material Eléctrico.” Source: RevenueBase Database · checked Sep 19, 2026
22	Powergroup	Indirect evidence	Paredes, PortugalHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “We work and grow together!” Source: RevenueBase Database · checked Sep 19, 2026
23	Construline Eletricidade LDA	Indirect evidence	Romeira, PortugalHQ checked Sep 19, 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 19, 2026
24	Iberinstal	Indirect evidence	Bucelas, PortugalHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “A IBERINSTAL é uma empresa que atua no sector do Transporte e Distribuição de Eletricidade, bem como na área das Instalações Técnicas.” Source: RevenueBase Database · checked Sep 19, 2026
25	Carfat	Indirect evidence	Guimarães, PortugalHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “Com mais de duas décadas de história, a CARFAT é uma empresa vocacionada para soluções integradas de eletricidade.” Source: RevenueBase Database · checked Sep 19, 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: electrical 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 electrical infrastructure companies.
Partial evidence: Its own public description names part of electrical infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical 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 167 electrical infrastructure companies based in Portugal

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Electrical infrastructure companies based in Portugal at a glance

As of Sep 19, 2026

28.1%Verified-email coverage

20.3Average contacts per company

11-50Median size (employees)

5.4%Largest-city concentration · Lisboa

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 167 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 electrical 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 “electrical 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 electrical 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 electrical 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, 955 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 19, 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 electrical 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 electrical infrastructure companies are there based in Portugal?

RevenueBase identified 167 electrical 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?

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

Which city has the most electrical infrastructure companies?

Lisboa leads with 9 headquartered companies, followed by Braga (6) and Rio Tinto (4).

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 955 verified decision-maker contacts tracked across these 167 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 19, 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.