Company lists · Data refreshed August 2026

Top 25 Clean energy consulting firms based in Spain

Name: Clean energy consulting firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 1,659 companies tracked

RevenueBase identified 1,659 clean energy consulting firms headquartered in Spain as of August 2026 and tracks 17,801 professional contacts across them, including 1,766 with verified work emails and 415 with mobile numbers. Madrid is the largest hub.

This list covers clean energy consulting firms 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

1,659Companies

17,801Contacts tracked

1,766Verified emails

415Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest clean energy consulting firms based in Spain

Ranked by team size

Top 25 of 1,659 clean energy consulting firms based in Spain, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy consulting firms: 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	Grupotec	Partial evidence	Boadilla Del Monte, Spain	501-1,000	543 contacts →
	Partial evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Aug 31, 2026
2	IGNIS	Partial evidence	Madrid, Spain	501-1,000	529 contacts →
	Partial evidence “We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Source: RevenueBase Database · checked Aug 31, 2026
3	Mn8 Energy	Indirect evidence	York, Spain	201-500	423 contacts →
	Indirect evidence “We Bring Deep Experience across the Renewable Asset Lifecycle.” Source: RevenueBase Database · checked Aug 31, 2026
4	Iplan Gestión Integral	Partial evidence	Barcelona, Spain	501-1,000	361 contacts →
	Partial evidence “Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Source: RevenueBase Database · checked Aug 31, 2026
5	Anthesis ESP	Indirect evidence	Manlleu, Spain	201-500	333 contacts →
	Indirect evidence “Som una empresa especialitzada en sostenibilitat, aliada amb les organitzacions, territoris i persones compromesos amb un món més sostenible, als quals acompanyem en la seva…” Source: RevenueBase Database · checked Aug 31, 2026
6	Negratín Global Services	Partial evidence	Alcobendas, Spain	201-500	295 contacts →
	Partial evidence “Somos un grupo energético global verticalmente integrado con más de 25 años de trayectoria y presencia consolidada en Europa, América y Asia.” Source: RevenueBase Database · checked Aug 31, 2026
7	Valora Consultores	Partial evidence	A Coruna, Spain	51-200	238 contacts →
	Partial evidence “VALORA is a consulting company who focus its activity towards a new professional innovative and thrilling challenge.” Source: RevenueBase Database · checked Aug 31, 2026
8	Ingeniería Estudios Y Proyectos Nip,s.A. Nipsa	Partial evidence	Madrid, Spain	201-500	236 contacts →
	Partial evidence “Ingeniería Estudios y Proyectos NIP, S.A.(NIPSA) is a Spanish engineering and consulting company created in 1976 with the purpose of providing high quality and flexible technical…” Source: RevenueBase Database · checked Aug 31, 2026
9	Ecointegral Ingeniería, SL	Strong evidence	Cordoba, Spain	201-500	232 contacts →
	Strong evidence “ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Source: RevenueBase Database · checked Aug 31, 2026
10	Plenitude España	Partial evidence	Santander, Spain	51-200	196 contacts →
	Partial evidence “Energía para el cambio.” Source: RevenueBase Database · checked Aug 31, 2026
11	Sm, Sistemas Medioambientales, SL	Indirect evidence	Barcelona, Spain	201-500	174 contacts →
	Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Aug 31, 2026
12	Quantica Renovables	Indirect evidence	Rute, Spain	201-500	161 contacts →
	Indirect evidence “QUANTICA Renovables is a company dedicated to providing cost and carbon efficiencies.” Source: RevenueBase Database · checked Aug 31, 2026
13	Cansol Energy Solutions	Partial evidence	Granada, Spain	51-200	152 contacts →
	Partial evidence “CANSOL ENERGY SOLUTIONS, construyendo un futuro sostenible.” Source: RevenueBase Database · checked Aug 31, 2026
14	Vestel Ingenieros	Indirect evidence	Paterna, Spain	51-200	135 contacts →
	Indirect evidence “Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.” Source: RevenueBase Database · checked Aug 31, 2026
15	Heymo Ingeniería, S.A.U	Indirect evidence	Madrid, Spain	201-500	108 contacts →
	Indirect evidence “HEYMO es una empresa de servicios profesionales de ingeniería y consultoría que cuenta con 60 años de experiencia nacional e internacional.” Source: RevenueBase Database · checked Aug 31, 2026
16	Grupo Trebol Energia	Partial evidence	Valencia, Spain	51-200	83 contacts →
	Partial evidence “We are one of the leading energy business consultancies in Spain.” Source: RevenueBase Database · checked Aug 31, 2026
17	Vivendio Grupo Aconser	Partial evidence	Sevilla, Spain	51-200	74 contacts →
	Partial evidence “En Vivendio, empresa perteneciente a Grupo Aconser, nos dedicamos a la eficiencia y rehabilitación energética.” Source: RevenueBase Database · checked Aug 31, 2026
18	SUD Renovables	Partial evidence	Avinyo, Spain	51-200	71 contacts →
	Partial evidence “SUD Renovables es un grupo independiente con sede en Avinyó que cuenta con una contrastada experiencia en el sector industrial, energético y medioambiental y que ofrece servicios…” Source: RevenueBase Database · checked Aug 31, 2026
19	Perspectives Climate Group	Indirect evidence	Alicante, Spain	51-200	62 contacts →
	Indirect evidence “Perspectives drives climate action through leading research and supporting our clients' environmental ambitions.” Source: RevenueBase Database · checked Aug 31, 2026
20	Azigrene Energy Consulting	Partial evidence	Spain	51-200	58 contacts →
	Partial evidence “Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Source: RevenueBase Database · checked Aug 31, 2026
21	Kepler Ingeniería Y Ecogestión	Partial evidence	Burgos, Spain	51-200	54 contacts →
	Partial evidence “Soluciones a las empresas en la Preservación Medio Ambiente, Energías Renovables y BioGas.” Source: RevenueBase Database · checked Aug 31, 2026
22	IASOL	Partial evidence	Zaragoza, Spain	51-200	52 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 Aug 31, 2026
23	Bester	Partial evidence	Seville, Spain	201-500	52 contacts →
	Partial evidence “Bester Generación es una empresa que actúa en el sector de las energías renovables (Fotovoltaica, Termosolar, Eólica, Biomasa, Hidráulica y Cogeneración), ofreciendo al cliente…” Source: RevenueBase Database · checked Aug 31, 2026
24	Planea Energía	Partial evidence	Albacete, Spain	51-200	51 contacts →
	Partial evidence “Somos comercializadora y generadores de energía renovable, ofrecemos propuestas claras, trato directo y servicio a tu medida, sin rodeos ni letra pequeña.” Source: RevenueBase Database · checked Aug 31, 2026
25	Konery	Partial evidence	Murcia, Spain	51-200	47 contacts →
	Partial evidence “Somos una ingeniería cuya misión es la mejora de la eficiencia energética e implantación de energías renovables como vía para cuidar el medio ambiente y mejorar la competitividad…” Source: RevenueBase Database · checked Aug 31, 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: clean energy consulting firms. 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 clean energy consulting firms.
Partial evidence: Its own public description names part of clean energy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean energy consulting firms. 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 1,659 clean energy consulting firms based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,766 reachable decision-makers.

Free signup · no credit card

View the full list →

Clean energy consulting firms based in Spain at a glance

As of Aug 31, 2026

9.9%Verified-email coverage

2.3%Mobile-number coverage

10.7Average contacts per company

1-10Median size (employees)

19.2%Largest-city concentration · Madrid

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

1,024

11-50

512

51-200

201-500

501-1,000

1,001-5,000

10001+

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 clean energy consulting firms, 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 “clean energy consulting firms”. 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 clean energy consulting firms), 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 clean energy consulting firms, 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, 1,766 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 August 31, 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.

Clean energy consulting firms by metro

Clean energy consulting firms in Madrid318
Clean energy consulting firms in Barcelona148
Clean energy consulting firms in Sevilla67
Clean energy consulting firms in Valencia66
Clean energy consulting firms in Zaragoza42
Clean energy consulting firms in Malaga34

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 clean energy consulting firms, 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 clean energy consulting firms are there based in Spain?

RevenueBase identified 1,659 clean energy consulting firms headquartered in Spain as of August 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?

Grupotec, headquartered in Boadilla Del Monte, tops this list with the largest team on record.

Which city has the most clean energy consulting firms?

Madrid leads with 318 headquartered companies, followed by Barcelona (148) and Sevilla (67).

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 1,766 verified decision-maker contacts tracked across these 1,659 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,659 clean energy consulting firms based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Clean energy consulting firms by geography

Browse the directory

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.