Company lists · Data refreshed November 2026

Top 24 Off-grid solar designers based in Spain

RevenueBase identified 297 company matches for off-grid solar designers associated with Spain as of November 2026 and tracks 2,409 professional contacts across them, including 353 with verified work emails. Madrid is the largest hub.

This list covers company matches for off-grid solar designers associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
297Companies
2,409Contacts tracked
353Verified emails
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The 24 largest off-grid solar designers based in Spain

Ranked by team size
Top 24 of 297 company matches for off-grid solar designers based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSant Boi De Llobregat, SpainHQ recorded Nov 6, 202651-200140 contacts →

Exact match

“Somos ESR Energy Solutions y llevamos más de 10 años llevando la energía solar a miles de hogares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200130 contacts →

Exact match

“RatedPower, part of Enverus since 2022, leads the solar software industry, enabling developers, IPPs, contractors, investors, and manufacturers to make better data-informed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchRibarroja Del Túria, SpainHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Fruto de la fusión de las empresas ELECSOL y ATESOL, fundadas en 1979 y especializadas en la distribución de material solar fotovoltaico, nace APLICACIONES TÉCNICAS DE LA ENERGÍA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchZaragoza, SpainHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“Esto es inteligencia solar En Repsol y Movistar hemos unido nuestra experiencia en innovación y tecnología para crear una nueva solución de autoconsumo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-50051 contacts →

Exact match

“Apostando por soluciones ecológicas, ofrecemos servicios que proporcionan independencia energética.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSalteras, SpainHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Empresa de planificación y ejecución de instalaciones fotovoltaicas (para autoconsumo, aisladas o de bombeo solar)”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Acercamos la energía renovable a tu hogar: Construimos un nuevo modelo de relación entre la energía y las personas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCastalla, SpainHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Somos especialistas en el diseño e instalación de proyectos fotovoltaicos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact match11, SpainHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Somos una empresa española dedicada a la distribución de sistemas fotovoltaicos para aisladas, revamping o autoconsumo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchZaragoza, SpainHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“ATALAYA GENERACION is a renewable energy development company focused on large scale projects in the Spanish solar and wind sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSudanell, SpainHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“SOLENVER está formado por un equipo cualificado y con amplia experiencia en el sector energético.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlicante, SpainHQ recorded Nov 6, 20261-1023 contacts →

Exact match

“Tenemos un método, lo hemos conseguido, proyectamos y legalizamos cualquier instalación fotovoltaica de una manera eficaz y rápida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPalma De Mallorca, SpainHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Impulsamos la energía del futuro en las Islas Baleares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLogroño, SpainHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Ecotelia Servicios Energéticos somos una empresa de diseño y construcción de energías renovables: fotovoltaica, biomasa, cogeneración, aerotermia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNoáin, SpainHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“INGENIERIA Y SOLUCIONES FOTOVOLTAICAS SL is a construction company based out of Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPedreguer, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Solar in Spain es una consultora de energías renovables con sede en Valencia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchA Coruña, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Fe Energy se estableció en 2019, con el objetivo principal de contribuir en la optimización de la industria energética mediante la participación activa en el diseño, desarrollo…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBilbao, SpainHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“WM – Westing Management LLC is a company that specializes in EPC (engineering, procurement and construction) services for the “green” energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchValencia, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Somos una empresa con más de 25 años en el sector, especializada en el diseño de proyectos, tramitación, instalación y mantenimiento de instalaciones solares fotovoltaicas y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchE;, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“En SolarBull ofrecemos soluciones integrales de ingeniería para proyectos de energía solar fotovoltaica, almacenamiento energético (BESS), infraestructuras eléctricas y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchElche, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Grupo SIA, con más de 20 años de experiencia, es una de las empresas instaladoras de energía solar fotovoltaica de referencia para empresas y particulares.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOlot, SpainHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“En Voltaic somos especialistas en soluciones de energía renovable para hogares e industrias.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLlagostera, SpainHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Som una companyia basada en la sostenibilitat i l'eficiència energètica, cercant tant el benefici econòmic com el el mediambiental.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 297 off-grid solar designers based in Spain

See the full list, filter by size, metro and specialty, and access 353 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Off-grid solar designers based in Spain at a glance

As of Nov 6, 2026
14.7%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
13.1%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
114
51-200
17
201-500
4
5,001-10,000
1

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 297 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “off-grid solar designers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 353 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Off-grid solar designers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “off-grid solar designers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many off-grid solar designers are there based in Spain?

RevenueBase identified 297 company matches for off-grid solar designers associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ESR Energy Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most off-grid solar designers?

Madrid leads with 39 company records, followed by Barcelona (11) and Valencia (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 353 professional contacts with verified work emails tracked across these 297 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.