Company lists · Data refreshed September 2026

Top 25 Solar module assembly companies based in Spain

Name: Solar module assembly companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 690 companies tracked

RevenueBase identified 690 solar module assembly companies headquartered in Spain as of September 2026 and tracks 8,942 professional contacts across them, including 1,428 with verified work emails. Madrid is the largest hub.

This list covers solar module assembly companies headquartered in Spain, 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 18, 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 18, 2026 86% judged on-target in blind review

690Companies

8,942Contacts tracked

1,428Verified emails

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The 25 largest solar module assembly companies based in Spain

Ranked by team size

Top 25 of 690 solar module assembly companies based in Spain, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar module assembly 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	Grenergy	Indirect evidence	Madrid, SpainHQ checked Sep 18, 2026	501-1,000	699 contacts →
	Indirect evidence “The on-demand energy producer empowering ever-changing lives Grenergy is a Spanish multinational clean energy producer.” Source: RevenueBase Database · checked Sep 18, 2026
2	Grupotec	Indirect evidence	Valencia, SpainHQ checked Sep 18, 2026	501-1,000	538 contacts →
	Indirect evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Sep 18, 2026
3	Gransolar Group	Partial evidence	Alcobendas, SpainHQ checked Sep 18, 2026	1,001-5,000	295 contacts →
	Partial evidence “Gransolar is a group of vertically integrated companies specialized in photovoltaic solar energy.” Source: RevenueBase Database · checked Sep 18, 2026
4	Axial Structural Solutions	Partial evidence	Paterna, SpainHQ checked Sep 18, 2026	201-500	286 contacts →
	Partial evidence “Axial Structural Solutions is a benchmark in the design and manufacture of fixed structural systems and solar trackers for photovoltaic installations.” Source: RevenueBase Database · checked Sep 18, 2026
5	Enerland	Partial evidence	Zaragoza, SpainHQ checked Sep 18, 2026	51-200	262 contacts →
	Partial evidence “Enerland nace en España en el año 2007 con el objetivo de ser líder del mercado solar fotovoltaico internacional, proporcionando soluciones Llaves en Mano a sus clientes en…” Source: RevenueBase Database · checked Sep 18, 2026
6	ID Energy Group	Partial evidence	Ciudad Real, SpainHQ checked Sep 18, 2026	201-500	210 contacts →
	Partial evidence “ID Energy Group is an international corporate group that is dedicated to renewable energy and specialised in solar photovoltaic energy.” Source: RevenueBase Database · checked Sep 18, 2026
7	Rioglass	Partial evidence	Mieres, SpainHQ checked Sep 18, 2026	501-1,000	155 contacts →
	Partial evidence “Rioglass Solar is an international renewable energy company with more than 15 years of experience in the solar power industry.” Source: RevenueBase Database · checked Sep 18, 2026
8	Ratedpower	Partial evidence	Madrid, SpainHQ checked Sep 18, 2026	51-200	125 contacts →
	Partial evidence “RatedPower, part of Enverus since 2022, leads the solar software industry, enabling developers, IPPs, contractors, investors, and manufacturers to make better data-informed…” Source: RevenueBase Database · checked Sep 18, 2026
9	ESR Energy Solutions	Partial evidence	Sant Boi De Llobregat, SpainHQ checked Sep 18, 2026	51-200	125 contacts →
	Partial evidence “Somos ESR Energy Solutions y llevamos más de 10 años llevando la energía solar a miles de hogares.” Source: RevenueBase Database · checked Sep 18, 2026
10	EAVE	Indirect evidence	Sta Cruz De Tenerife, SpainHQ checked Sep 18, 2026	51-200	113 contacts →
	Indirect evidence “Somos un equipo de profesionales especializados en energías renovables.” Source: RevenueBase Database · checked Sep 18, 2026
11	Autosolar Energy Solutions	Partial evidence	Alcàsser, SpainHQ checked Sep 18, 2026	51-200	98 contacts →
	Partial evidence “AutoSolar es la tienda solar líder en España.” Source: RevenueBase Database · checked Sep 18, 2026
12	Ríos Renovables	Indirect evidence	Fustiñana, SpainHQ checked Sep 18, 2026	201-500	95 contacts →
	Indirect evidence “RÍOS Renovables Group es un grupo empresarial consolidado en el mercado de las energías renovables.” Source: RevenueBase Database · checked Sep 18, 2026
13	Grupo Zaragozá	Indirect evidence	Valencia, SpainHQ checked Sep 18, 2026	51-200	88 contacts →
	Indirect evidence “We have history, we’re present, creating future” Zaragozá Group is a group that has grown and adapted to the business opportunities that have arisen.” Source: RevenueBase Database · checked Sep 18, 2026
14	Onyx Solar Energy	Partial evidence	Avila, SpainHQ checked Sep 18, 2026	51-200	65 contacts →
	Partial evidence “Onyx Solar is a global leader in photovoltaic (PV) glass for Building Integrated Photovoltaics (BIPV).” Source: RevenueBase Database · checked Sep 18, 2026
15	Ibéricarenovables	Partial evidence	Sevilla, SpainHQ checked Sep 18, 2026	51-200	59 contacts →
	Partial evidence “Ibérica Renovables, nace con la misión de ser una empresa de referencia en la actividad de montaje mecánico de parques solares fotovoltaicos, con estructuras fijas, con…” Source: RevenueBase Database · checked Sep 18, 2026
16	Baywa R.E. Solar Distribution ES	Indirect evidence	Barcelona, SpainHQ checked Sep 18, 2026	51-200	55 contacts →
	Indirect evidence “Electricidad y sol: lo que nos representa.” Source: RevenueBase Database · checked Sep 18, 2026
17	IASOL	Partial evidence	Zaragoza, SpainHQ checked Sep 18, 2026	51-200	54 contacts →
	Partial evidence “Ingeniería y Aplicaciones Solares 2005 Zaragoza, S.L.(IASOL) es una empresa líder en Aragón en el desarrollo de energías limpias, que trabaja por el desarrollo sostenible y…” Source: RevenueBase Database · checked Sep 18, 2026
18	LRP Energy	Indirect evidence	Madrid, SpainHQ checked Sep 18, 2026	201-500	52 contacts →
	Indirect evidence “Apostando por soluciones ecológicas, ofrecemos servicios que proporcionan independencia energética.” Source: RevenueBase Database · checked Sep 18, 2026
19	Solar360 DE Repsol Y Movistar	Partial evidence	Madrid, SpainHQ checked Sep 18, 2026	11-50	48 contacts →
	Partial evidence “Esto es inteligencia solar En Repsol y Movistar hemos unido nuestra experiencia en innovación y tecnología para crear una nueva solución de autoconsumo.” Source: RevenueBase Database · checked Sep 18, 2026
20	Solideo ECO Systems	Partial evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 18, 2026	51-200	44 contacts →
	Partial evidence “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Source: RevenueBase Database · checked Sep 18, 2026
21	Abora Solar	Partial evidence	Zaragoza, SpainHQ checked Sep 18, 2026	11-50	42 contacts →
	Partial evidence “We are a European manufacturer of Hybrid Solar Panels in constant innovation in Solar technology.” Source: RevenueBase Database · checked Sep 18, 2026
22	Geesol Renovables	Partial evidence	Salteras, SpainHQ checked Sep 18, 2026	51-200	42 contacts →
	Partial evidence “Empresa de planificación y ejecución de instalaciones fotovoltaicas (para autoconsumo, aisladas o de bombeo solar)” Source: RevenueBase Database · checked Sep 18, 2026
23	Energia Ercam	Partial evidence	Cabanillas Del Campo, SpainHQ checked Sep 18, 2026	51-200	42 contacts →
	Partial evidence “ERCAM ENERGY is an engineering firm, founded in Guadalajara (Spain) in decided to become a leader in the field of RENEWABLE ENERGIES and a dominant SOLAR TRACKER AND FIX…” Source: RevenueBase Database · checked Sep 18, 2026
24	Universal DE Suministro	Indirect evidence	Albal, SpainHQ checked Sep 18, 2026	51-200	41 contacts →
	Indirect evidence “We are a company specialized in the design, manufacturing, and installation of photovoltaic and agrivoltaic structures.” Source: RevenueBase Database · checked Sep 18, 2026
25	1komma5 ES	Indirect evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 18, 2026	51-200	39 contacts →
	Indirect evidence “Nuestra visión es hacer que todos podamos vivir de las energías renovables para siempre y gratis.” Source: RevenueBase Database · checked Sep 18, 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: solar module assembly 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 solar module assembly companies.
Partial evidence: Its own public description names part of solar module assembly companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar module assembly 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 690 solar module assembly companies based in Spain

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Solar module assembly companies based in Spain at a glance

As of Sep 18, 2026

16.0%Verified-email coverage

13.0Average contacts per company

11-50Median size (employees)

11.7%Largest-city concentration · Madrid

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

310

11-50

274

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 690 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 solar module assembly 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 Spain whose own description of what they do matches “solar module assembly 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 solar module assembly 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 solar module assembly companies, and records with no verified work email. Companies headquartered outside Spain 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, 1,428 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 18, 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.

Solar module assembly companies by metro

Solar module assembly companies in Madrid81
Solar module assembly companies in Valencia30
Solar module assembly companies in Barcelona27

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 solar module assembly 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 solar module assembly companies are there based in Spain?

RevenueBase identified 690 solar module assembly companies headquartered in Spain 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?

Grenergy, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most solar module assembly companies?

Madrid leads with 81 headquartered companies, followed by Valencia (30) and Barcelona (27).

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 1,428 verified decision-maker contacts tracked across these 690 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 18, 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.