Company lists · Data refreshed September 2026

Top 25 Energy efficiency consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 924 companies tracked

RevenueBase identified 924 energy efficiency consulting firms headquartered in Spain as of September 2026 and tracks 5,738 professional contacts across them, including 489 with verified work emails and 79 with mobile numbers. Madrid is the largest hub.

This list covers energy efficiency 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 2, 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 Sep 2, 2026 86% judged on-target in blind review

924Companies

5,738Contacts tracked

489Verified emails

79Mobile numbers

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The 25 largest energy efficiency consulting firms based in Spain

Ranked by team size

Top 25 of 924 energy efficiency consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to energy efficiency 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	Quantica Renovables	Partial evidence	Rute, Spain	201-500	161 contacts →
	Partial evidence “QUANTICA Renovables is a company dedicated to providing cost and carbon efficiencies.” Source: RevenueBase Database · checked Sep 2, 2026
2	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 Sep 2, 2026
3	NESS	Partial evidence	Madrid, Spain	11-50	83 contacts →
	Partial evidence “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Source: RevenueBase Database · checked Sep 2, 2026
4	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 Sep 2, 2026
5	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 Sep 2, 2026
6	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 Sep 2, 2026
7	Solideo ECO Systems	Strong evidence	Sant Cugat Del Valles, Spain	51-200	43 contacts →
	Strong evidence “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Source: RevenueBase Database · checked Sep 2, 2026
8	Cambioenergetico	Partial evidence	Campos, Spain	51-200	42 contacts →
	Partial evidence “Especialistas en ahorro energético y eficiencia energética.” Source: RevenueBase Database · checked Sep 2, 2026
9	Montajes Eléctricos García	Partial evidence	Madrid, Spain	201-500	38 contacts →
	Partial evidence “En MEG trabajamos con energía para aportar soluciones energéticas eficientes a nuestros clientes.” Source: RevenueBase Database · checked Sep 2, 2026
10	Sinceo2 Consultoria Energética	Partial evidence	Madrid, Spain	51-200	32 contacts →
	Partial evidence “Sujeto Delegado del sistema CAEs, Certificados de Ahorro Energético.” Source: RevenueBase Database · checked Sep 2, 2026
11	Naturelek Energía E Ingeniería	Partial evidence	Derio, Spain	51-200	30 contacts →
	Partial evidence “Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.” Source: RevenueBase Database · checked Sep 2, 2026
12	Tunergía	Partial evidence	Valencia, Spain	51-200	30 contacts →
	Partial evidence “Asesores Energéticos trabajando en facilitar el día a día de otros Asesores Energéticos ¿Una Misión?” Source: RevenueBase Database · checked Sep 2, 2026
13	EDA Instalaciones Y Energía S.L	Partial evidence	Badalona, Spain	51-200	29 contacts →
	Partial evidence “EDA Instalaciones y Energía S.L, es una empresa con amplia experiencia en el sector de las instalaciones integrales, mantenimientos y estudios de eficiencia energética.” Source: RevenueBase Database · checked Sep 2, 2026
14	Energy Tools	Partial evidence	Terrassa, Spain	11-50	28 contacts →
	Partial evidence “A Energy Tools, empresa líder en el mercat, ajudem, de manera ètica i transparent, les empreses amb grans consums energètics a prendre les millors decisions.” Source: RevenueBase Database · checked Sep 2, 2026
15	Inergy	Partial evidence	Barcelona, Spain	11-50	28 contacts →
	Partial evidence “Inergy tiene como misión contribuir al ahorro energético de sus clientes, reduciendo su factura energética, y favoreciendo al mismo tiempo la mitigación del cambio climático.” Source: RevenueBase Database · checked Sep 2, 2026
16	Energía Local	Partial evidence	Barcelona, Spain	11-50	27 contacts →
	Partial evidence “Somos una consultora especializada en el ámbito energético y sostenibilidad.” Source: RevenueBase Database · checked Sep 2, 2026
17	Exclusivas Energeticas	Partial evidence	Spain	11-50	22 contacts →
	Partial evidence “Exclusivas Energéticas es una de las empresas de gestión energética de mayor proyección en este momento, nos respaldan los numerosos casos de éxito que sumamos, una gran…” Source: RevenueBase Database · checked Sep 2, 2026
18	Pavener	Partial evidence	Quart De Poblet, Spain	11-50	21 contacts →
	Partial evidence “Pavener, servicios energéticos, somos especialistas en energía, incorporamos ingeniería, instalación, y mantenimiento.” Source: RevenueBase Database · checked Sep 2, 2026
19	Erasmil	Partial evidence	Madrid, Spain	11-50	20 contacts →
	Partial evidence “Erasmil es una empresa técnica de asesoramiento y ejecución en mantenimiento de instalaciones, eficiencia energética, y ejecución de proyectos de nueva obra y sustitución.” Source: RevenueBase Database · checked Sep 2, 2026
20	MI Energía Manager	Partial evidence	Madrid, Spain	11-50	19 contacts →
	Partial evidence “En el centro de un mercado energético muy difícil de descifrar, a los consumidores les resulta difícil elegir la mejor opción para solucionar sus problemas energéticos.” Source: RevenueBase Database · checked Sep 2, 2026
21	Wikitel Asesores	Partial evidence	Sevilla, Spain	11-50	17 contacts →
	Partial evidence “Servicios de consultoría energética e instalación de Placas Solares para particulares y empresas.” Source: RevenueBase Database · checked Sep 2, 2026
22	Encore Efficiency SE	Strong evidence	Madrid, Spain	11-50	16 contacts →
	Strong evidence “We take responsibility for the efficiency of energy supply for the entire life cycle of a project.” Source: RevenueBase Database · checked Sep 2, 2026
23	Luzía Energía	Strong evidence	Mairena Del Aljarafe, Spain	51-200	16 contacts →
	Strong evidence “Luzía Energía is a company dedicated to saving and energy efficiency.” Source: RevenueBase Database · checked Sep 2, 2026
24	Ahorrenergia	Partial evidence	Madrid, Spain	51-200	16 contacts →
	Partial evidence “Ahorrenergía es un grupo formado por profesionales del sector energético, tecnológico y financiero, comprometido con la Eficiencia Energética, Medio Ambiente y Ahorro Sostenible…” Source: RevenueBase Database · checked Sep 2, 2026
25	NOA Soluciones Energeticas SL	Partial evidence	Ocana, Spain	51-200	14 contacts →
	Partial evidence “NOA SOLUCIONES ENERGETICAS SL is a company based out of Comandante Lence 10, OCAÑA, Toledo, Spain.” Source: RevenueBase Database · checked Sep 2, 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 efficiency 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 efficiency consulting firms.
Partial evidence: Its own public description names part of energy efficiency 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 efficiency 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 924 energy efficiency consulting firms based in Spain

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Energy efficiency consulting firms based in Spain at a glance

As of Sep 2, 2026

8.5%Verified-email coverage

1.4%Mobile-number coverage

6.2Average contacts per company

1-10Median size (employees)

18.6%Largest-city concentration · Madrid

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

605

11-50

252

51-200

201-500

501-1,000

1,001-5,000

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 efficiency 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 efficiency 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 efficiency 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 efficiency 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, 489 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 2, 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 efficiency consulting firms by metro

Energy efficiency consulting firms in Madrid172
Energy efficiency consulting firms in Barcelona91
Energy efficiency consulting firms in Valencia39
Energy efficiency consulting firms in Sevilla28

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 efficiency 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 efficiency consulting firms are there based in Spain?

RevenueBase identified 924 energy efficiency 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?

Quantica Renovables, headquartered in Rute, tops this list with the largest team on record.

Which city has the most energy efficiency consulting firms?

Madrid leads with 172 headquartered companies, followed by Barcelona (91) and Valencia (39).

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 489 verified decision-maker contacts tracked across these 924 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 2, 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.