Company lists · Data refreshed September 2026

Top 25 Rooftop solar companies based in Portugal

Name: Rooftop solar companies based in Portugal
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 rooftop solar companies headquartered in Portugal as of September 2026 and tracks 1,429 professional contacts across them, including 376 with verified work emails. Lisboa is the largest hub.

This list covers rooftop solar 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 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

1,429Contacts tracked

376Verified emails

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The 25 largest rooftop solar companies based in Portugal

Ranked by team size

Top 25 of 175 rooftop solar companies based in Portugal, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to rooftop solar 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	Greenvolt Next	Indirect evidence	Lisbon, PortugalHQ checked Sep 17, 2026	201-500	326 contacts →
	Indirect evidence “Greenvolt Next is your guide to change the way on how you produce, consume, and share energy.” Source: RevenueBase Database · checked Sep 17, 2026
2	Cleanwatts	Partial evidence	Coimbra, PortugalHQ checked Sep 17, 2026	11-50	54 contacts →
	Partial evidence “Cleanwatts accelerates the energy transition through the development of distributed solar energy projects and energy communities.” Source: RevenueBase Database · checked Sep 17, 2026
3	Enersado	Indirect evidence	Quinta Do Anjo, PortugalHQ checked Sep 17, 2026	201-500	41 contacts →
	Indirect evidence “OUR VISION Enersado is a company founded with the purpose of being a national and international market reference in the areas of power production sources mounting and assembly.” Source: RevenueBase Database · checked Sep 17, 2026
4	Solarshop	Indirect evidence	Leiria, PortugalHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “A SolarShop iniciou a sua atividade no setor das energias renováveis em 2011, com um foco inicial em instalações isoladas e componentes.” Source: RevenueBase Database · checked Sep 17, 2026
5	Cirelius	Indirect evidence	Avintes, PortugalHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “Cirelius is a company based out of 26 Rua da Cancela Velha, Avintes, Portugal.” Source: RevenueBase Database · checked Sep 17, 2026
6	Donauer	Indirect evidence	Venda Do Pinheiro, PortugalHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “Localizada em Portugal, a Donauer fornece soluções energéticas renováveis e trabalha hoje para criar um amanhã mais sustentável.” Source: RevenueBase Database · checked Sep 17, 2026
7	Poweryield	Indirect evidence	Montemor-o-novo, PortugalHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Somos especialistas em sistemas fotovoltaicos e temos como missão colocar o nosso know-how ao serviço da geração de receitas para os nossos clientes.” Source: RevenueBase Database · checked Sep 17, 2026
8	Keepon	Partial evidence	2681-502 Camarate, PortugalHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “A KeepOn é uma empresa de instalação e manutenção de sistemas fotovoltaicos, AVAC, eletricidade, sistemas solares térmicos, mobilidade elétrica e tratamento de águas.” Source: RevenueBase Database · checked Sep 17, 2026
9	Solcor Portugal	Partial evidence	Lisbon, PortugalHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “Solcor oferece painéis solares sem custos de investimento e sem custos operacionais, compartilhamos apenas com o cliente as economias geradas pelos painéis solares.” Source: RevenueBase Database · checked Sep 17, 2026
10	Coeptum	Indirect evidence	Gandra, PortugalHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “A COEPTUM atua no setor da energia, com particular enfoque nas áreas da sustentabilidade e eficiência energética.” Source: RevenueBase Database · checked Sep 17, 2026
11	SEM IR LDA	Indirect evidence	Vale Do Paraíso, PortugalHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “SEM IR \| Engenharia de Proximidade & Sustentabilidade Energética.” Source: RevenueBase Database · checked Sep 17, 2026
12	Firstrule	Indirect evidence	Seixal, PortugalHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “FIRSTRULE, S.A.” Source: RevenueBase Database · checked Sep 17, 2026
13	Nextenergy, LDA	Indirect evidence	Praia Da Vitória (santa Cruz), PortugalHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Desde 2004 que o nosso foco e motor para uma progressiva evolução é a ambição de entrar na casa de todos os nossos clientes, oferecendo-lhes um serviço de consultadoria/instalação…” Source: RevenueBase Database · checked Sep 17, 2026
14	Solmaior	Indirect evidence	Lisbon, PortugalHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Entre as exigências da sociedade e a absoluta necessidade de preservar o Planeta, a Solmaior canaliza o melhor de ambas: usa a mais avançada tecnologia associada à força da…” Source: RevenueBase Database · checked Sep 17, 2026
15	Eneriberia	Indirect evidence	Felgueiras, PortugalHQ checked Sep 17, 2026	11-50	9 contacts →
	Indirect evidence “Eneriberia specializes in clean energy solutions for industrial self-consumption.” Source: RevenueBase Database · checked Sep 17, 2026
16	Tlci Energia	Indirect evidence	Guimarães, PortugalHQ checked Sep 17, 2026	51-200	8 contacts →
	Indirect evidence “A TLCI Energia é uma marca especializada na oferta de soluções de produção de energias renováveis.” Source: RevenueBase Database · checked Sep 17, 2026
17	Sotysolar Portugal	Indirect evidence	Lisboa, PortugalHQ checked Sep 17, 2026	51-200	6 contacts →
	Indirect evidence “Ajudar cada vez mais pessoas na sua transição energética é a missão da SotySolar Portugal.” Source: RevenueBase Database · checked Sep 17, 2026
18	Trilhos Energéticos	Indirect evidence	Sazes Do Lorvão - Penacova, PortugalHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “A TRILHOS ENERGÉTICOS – Soluções Sustentáveis, é uma empresa cuja área de atuação são as energias renováveis.” Source: RevenueBase Database · checked Sep 17, 2026
19	Lefe,lda	Indirect evidence	Joane, PortugalHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Somos uma empresa comprometida em fornecer soluções inovadoras e sustentáveis para os nossos clientes.” Source: RevenueBase Database · checked Sep 17, 2026
20	Ecosul	Indirect evidence	Portimão, PortugalHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Desde 2012, a Ecosul tem liderado o caminho na eficiência energética e energias renováveis, ajudando empresas, indústrias e instituições públicas a reduzir custos energéticos…” Source: RevenueBase Database · checked Sep 17, 2026
21	Rewatt Renewables Developer	Indirect evidence	Matosinhos, PortugalHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Pretendemos que seja simples a introdução de energias renováveis na sua empresa, sem a desfocar do seu negócio principal.” Source: RevenueBase Database · checked Sep 17, 2026
22	GO Energy	Indirect evidence	Lagos, PortugalHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “A Go Energy,Lda nasceu em 2011, fruto do desejo de crescer de profissionais com larga experiência na área.” Source: RevenueBase Database · checked Sep 17, 2026
23	Krannich Solar Portugal	Partial evidence	Oporto, PortugalHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “A Krannich Solar é uma das principais distribuidoras fotovoltaica no mundo todo.” Source: RevenueBase Database · checked Sep 17, 2026
24	Energias DA Terra	Partial evidence	Malveira, PortugalHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “Somos uma equipa jovem e dinâmica, especializada em sistemas de eficiência energética e mobilidade tais como: Sistemas Solares, climatização e águas quentes por meio de bomba de…” Source: RevenueBase Database · checked Sep 17, 2026
25	Trineg	Indirect evidence	Vila Nova De Gaia, PortugalHQ checked Sep 17, 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 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: rooftop solar 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 rooftop solar companies.
Partial evidence: Its own public description names part of rooftop solar companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rooftop solar 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 175 rooftop solar companies based in Portugal

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Rooftop solar companies based in Portugal at a glance

As of Sep 17, 2026

26.3%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · Lisboa

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 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 rooftop solar 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 “rooftop solar 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 rooftop solar 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 rooftop solar 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, 376 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.

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 rooftop solar 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 rooftop solar companies are there based in Portugal?

RevenueBase identified 175 rooftop solar 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?

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

Which city has the most rooftop solar companies?

Lisboa leads with 11 headquartered companies, followed by Porto (9) and Braga (7).

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 376 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.