Company lists · Data refreshed September 2026

Top 24 Energy industry consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,231 companies tracked

RevenueBase identified 1,231 energy industry consulting firms headquartered in Spain as of September 2026 and tracks 18,309 professional contacts across them, including 1,727 with verified work emails. Madrid is the largest hub.

This list covers energy industry 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 September 21, 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 21, 2026 86% judged on-target in blind review

1,231Companies

18,309Contacts tracked

1,727Verified emails

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The 24 largest energy industry consulting firms based in Spain

Ranked by team size

Top 24 of 1,231 energy industry consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy industry 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	Management Solutions	Strong evidence	Madrid, SpainHQ checked Sep 21, 2026	1,001-5,000	4,468 contacts →
	Strong evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 21, 2026
2	Inerco	Partial evidence	Sevilla, SpainHQ checked Sep 21, 2026	1,001-5,000	688 contacts →
	Partial evidence “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Source: RevenueBase Database · checked Sep 21, 2026
3	Grupotec	Partial evidence	Valencia, SpainHQ checked Sep 21, 2026	501-1,000	538 contacts →
	Partial evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Sep 21, 2026
4	Revergy	Partial evidence	Seville, SpainHQ checked Sep 21, 2026	501-1,000	502 contacts →
	Partial evidence “REVERGY nace mediante un proyecto de profesionales procedentes de diferentes ámbitos del sector de las energías renovables con el fin de presentar un proyecto marcado por la…” Source: RevenueBase Database · checked Sep 21, 2026
5	Enertis Applus	Strong evidence	Madrid, SpainHQ checked Sep 21, 2026	201-500	379 contacts →
	Strong evidence “Enertis Applus+ is a global engineering consultancy firm with extensive expertise in the renewable energy and BESS industry.” Source: RevenueBase Database · checked Sep 21, 2026
6	Iplan Gestión Integral	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	501-1,000	363 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 Sep 21, 2026
7	AESA	Partial evidence	Barcelona, SpainHQ checked Sep 21, 2026	n/a	351 contacts →
	Partial evidence “Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.” Source: RevenueBase Database · checked Sep 21, 2026
8	Df-Duro Felguera	Indirect evidence	Gijón, SpainHQ checked Sep 21, 2026	1,001-5,000	301 contacts →
	Indirect evidence “Duro Felguera is a global company based in Asturias.” Source: RevenueBase Database · checked Sep 21, 2026
9	Sólida	Strong evidence	Madrid, SpainHQ checked Sep 21, 2026	201-500	298 contacts →
	Strong evidence “SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Source: RevenueBase Database · checked Sep 21, 2026
10	Resgreen Europe SL	Partial evidence	Alcorcón, SpainHQ checked Sep 21, 2026	201-500	253 contacts →
	Partial evidence “Nacemos en enero de 2014 con vocación de ser un referente en el desarrollo de las áreas de servicios de empresas de energía renovable a nivel nacional e internacional.” Source: RevenueBase Database · checked Sep 21, 2026
11	Ingeniería Estudios Y Proyectos Nip,s.A. Nipsa	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	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 Sep 21, 2026
12	Ecointegral Ingeniería, SL	Strong evidence	Córdoba, SpainHQ checked Sep 21, 2026	201-500	234 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 Sep 21, 2026
13	MAI Group	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	152 contacts →
	Partial evidence “MAI has been in international consultancy for over 25 years driving energy and environmental project around the world, helping to design and plan reliable supply systems based on…” Source: RevenueBase Database · checked Sep 21, 2026
14	Cansol Energy Solutions	Partial evidence	Granada, SpainHQ checked Sep 21, 2026	51-200	151 contacts →
	Partial evidence “CANSOL ENERGY SOLUTIONS, construyendo un futuro sostenible.” Source: RevenueBase Database · checked Sep 21, 2026
15	Voltae Engineering	Indirect evidence	Sevilla, SpainHQ checked Sep 21, 2026	51-200	132 contacts →
	Indirect evidence “Somos una compañía de ingeniería y consultoría altamente especializada, ofreciendo servicios integrales de alto valor en proyectos de transmisión, distribución y generación de…” Source: RevenueBase Database · checked Sep 21, 2026
16	Barlovento Applus	Strong evidence	Logroño, SpainHQ checked Sep 21, 2026	51-200	123 contacts →
	Strong evidence “Barlovento Applus+ is a global consulting, engineering, and testing company with extensive expertise in the wind industry.” Source: RevenueBase Database · checked Sep 21, 2026
17	Diseprosa	Indirect evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	92 contacts →
	Indirect evidence “DISEÑOS Y PROYECTOS REUNIDOS, S.A.(DISEPROSA), fundada en Madrid en 1986 y dedicada al desarrollo y prestación de servicios de Ingeniería y Consultoría, Dirección y Supervisión de…” Source: RevenueBase Database · checked Sep 21, 2026
18	Solute	Indirect evidence	San Sebastian De Los Reyes, SpainHQ checked Sep 21, 2026	51-200	91 contacts →
	Indirect evidence “SOLUTE is a multidisciplinary technical engineering consultancy with more than 15 years of experience headquartered in Madrid, Spain, and with regional branches in Barcelona…” Source: RevenueBase Database · checked Sep 21, 2026
19	EACOM	Indirect evidence	Barcelona, SpainHQ checked Sep 21, 2026	51-200	90 contacts →
	Indirect evidence “EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Source: RevenueBase Database · checked Sep 21, 2026
20	Grupo Trebol Energia	Partial evidence	Sant Joan Despi, SpainHQ checked Sep 21, 2026	51-200	84 contacts →
	Partial evidence “We are one of the leading energy business consultancies in Spain.” Source: RevenueBase Database · checked Sep 21, 2026
21	NESS	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	11-50	81 contacts →
	Partial evidence “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Source: RevenueBase Database · checked Sep 21, 2026
22	Tresca Ingeniería, S.A	Partial evidence	Léon, SpainHQ checked Sep 21, 2026	51-200	78 contacts →
	Partial evidence “Tresca Ingeniería nace en 2001, ofreciendo a sus clientes servicios de ingeniería y consultoría en los sectores industrial, terciario y residencial.” Source: RevenueBase Database · checked Sep 21, 2026
23	Sferaone	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	61 contacts →
	Partial evidence “SferaOne, parte del Grupo Diggia, es una empresa que realiza actividades de proyección global desde 2002, especializada en la transición Energética desarrollando trabajos de…” Source: RevenueBase Database · checked Sep 21, 2026
24	Bluetree Group	Partial evidence	Madrid, SpainHQ checked Sep 21, 2026	51-200	60 contacts →
	Partial evidence “Helping investors and energy companies maximise renewable asset performance while keeping risk under control.” Source: RevenueBase Database · checked Sep 21, 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: energy industry 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 energy industry consulting firms.
Partial evidence: Its own public description names part of energy industry consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy industry 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 24 of 1,231 energy industry consulting firms based in Spain

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Energy industry consulting firms based in Spain at a glance

As of Sep 21, 2026

9.4%Verified-email coverage

14.9Average contacts per company

1-10Median size (employees)

20.8%Largest-city concentration · Madrid

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

764

11-50

357

51-200

201-500

501-1,000

1,001-5,000

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 1,231 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 energy industry 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 “energy industry 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 energy industry 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 energy industry 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, 1,727 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 21, 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.

Energy industry consulting firms by metro

Energy industry consulting firms in Madrid256
Energy industry consulting firms in Barcelona96
Energy industry consulting firms in Sevilla45
Energy industry consulting firms in Valencia45
Energy industry consulting firms in Zaragoza30
Energy industry consulting firms in Malaga26

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 energy industry 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 energy industry consulting firms are there based in Spain?

RevenueBase identified 1,231 energy industry consulting firms 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?

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

Which city has the most energy industry consulting firms?

Madrid leads with 256 headquartered companies, followed by Barcelona (96) and Sevilla (45).

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 1,727 verified decision-maker contacts tracked across these 1,231 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 21, 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.