Company lists · Data refreshed October 2026

Top 25 Net zero energy consultants based in Spain

RevenueBase identified 269 company matches for net zero energy consultants associated with Spain as of October 2026 and tracks 1,499 professional contacts across them, including 147 with verified work emails. Madrid is the largest hub.

This list covers company matches for net zero energy consultants 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 October 18, 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 Oct 18, 2026 How this list was built
269Companies
1,499Contacts tracked
147Verified emails
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The 25 largest net zero energy consultants based in Spain

Ranked by team size
Top 25 of 269 company matches for net zero energy consultants based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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 Joan Despi, SpainHQ recorded Oct 18, 202651-20098 contacts →

Exact match

“We are one of the leading energy business consultancies in Spain.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchValencia/valència, SpainHQ recorded Oct 18, 202651-20056 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchOlot, SpainHQ recorded Oct 18, 202611-5034 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchSant Cugat Del Vallès, SpainHQ recorded Oct 18, 202651-20034 contacts →

Exact match

“We are an engineering and consulting company specialised in solar energy and energy efficiency.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchDerio, SpainHQ recorded Oct 18, 202651-20031 contacts →

Exact match

“Somos una ingeniería y consultora especializada en eficiencia, gestión y transformación energética para empresas, con un enfoque técnico, integral y orientado a resultados.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchBarcelona, SpainHQ recorded Oct 18, 202611-5028 contacts →

Exact match

“En Central Energy Asesores ayudamos a particulares y a empresas a optimizar sus costes y mejorar su eficiencia energética.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchBarcelona, SpainHQ recorded Oct 18, 202611-5027 contacts →

Exact match

“Somos una consultora especializada en el ámbito energético y sostenibilidad.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchGranada, SpainHQ recorded Oct 18, 202611-5026 contacts →

Exact match

“We offer companies efficient solutions with the best consulting and engineering services in: Energy Management Energy certification and qualification of buildings Energy…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchValencia, SpainHQ recorded Oct 18, 202611-5023 contacts →

Exact match

“Empresa de servicios energéticos, especializada en diversas disciplinas en materia de ahorro energético y con una amplia formación derivada de sus más de 15 años de experiencia en…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchBarcelona, SpainHQ recorded Oct 18, 202611-5018 contacts →

Exact match

“GSE es una consultoría de ámbito nacional, especializada en la reducción de costes energéticos de las empresas con la implementación del protocolo de eficiencia energética…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchMijas, SpainHQ recorded Oct 18, 20261-1014 contacts →

Exact match

“En CASTAÑO & ASOCIADOS Construcción Sostenible S.L.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchSeville, SpainHQ recorded Oct 18, 202611-5014 contacts →

Exact match

“Servicios de consultoría energética e instalación de Placas Solares para particulares y empresas.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchSeville, SpainHQ recorded Oct 18, 20261-1014 contacts →

Exact match

“Somos una empresa consultora del ámbito de la ingeniería y el desarrollo de proyectos integrales, especializada en el diseño y cálculo de instalaciones en edificaciones singulares.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchFuenlabrada, SpainHQ recorded Oct 18, 202611-5014 contacts →

Exact match

“Asesores energéticos especialistas en la optimización de la factura energética.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchLleida, SpainHQ recorded Oct 18, 202611-5013 contacts →

Exact match

“Somos una Ingeniería que trabaja en proyectos de energía limpia y sostenible con más de 25 años de experiencia.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchRiudellots De La Selva, SpainHQ recorded Oct 18, 202611-5011 contacts →

Exact match

“ECOVAT is a consulting engineering firm specialized in renewable energies projects with one mission: to provide integrated engineering management services, in renewable energy…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchAlcorcón, SpainHQ recorded Oct 18, 20261-1011 contacts →

Exact match

“Arquitectos especializados en viviendas de consumo casi nulo (nZEB) con certificación Passivhaus.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchZaragoza, SpainHQ recorded Oct 18, 20261-1011 contacts →

Exact match

“Couce Consulting nace en 2010 con un objetivo claro Ayudar a grandes empresas, PYMES y autónomos a ahorrar en sus facturas.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Oct 18, 20261-1010 contacts →

Exact match

“CAST] Te acompañamos en el camino hacia las emisiones cerø, haciendo de la transición energética una oportunidad.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchCastellon, SpainHQ recorded Oct 18, 202611-5010 contacts →

Exact match

“Ingeniería y arquitectura dedicada a la asesoría energética.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchVitoria-gasteiz, SpainHQ recorded Oct 18, 202611-509 contacts →

Exact match

“Somos una #ingeniería eléctrica especializada en las energías renovables, la #monitorización de instalaciones, así como el asesoramiento especializado de sistemas de #eficiencia…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchAlcobendas, SpainHQ recorded Oct 18, 202611-507 contacts →

Exact match

“Ofrecemos soluciones integrales orientadas al máximo confort y la excelencia energética.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchBarcelona, SpainHQ recorded Oct 18, 20261-107 contacts →

Exact match

“Engineering, Architecture and Energy Efficiency Services.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchPontevedra, SpainHQ recorded Oct 18, 202611-506 contacts →

Exact match

“En Attica Energía ayudamos a empresas y profesionales a optimizar sus costes energéticos y a tomar decisiones eficientes y rentables.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchBurgos, SpainHQ recorded Oct 18, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 269 net zero energy consultants based in Spain

See the full list, filter by size, metro and specialty, and access 147 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Net zero energy consultants based in Spain at a glance

As of Oct 18, 2026
9.8%Verified-email coverage
5.6Average contacts per company
1-10Median size (employees)
13.0%Largest-city concentration · Madrid
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
189
11-50
65
51-200
12
201-500
1
501-1,000
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 269 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 “net zero energy consultants” 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 147 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 October 18, 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.

Net zero energy consultants 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 “net zero energy consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many net zero energy consultants are there based in Spain?

RevenueBase identified 269 company matches for net zero energy consultants associated with Spain as of October 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?

Grupo Trebol Energia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most net zero energy consultants?

Madrid leads with 35 company records, followed by Barcelona (27) and Valencia (16).

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 147 professional contacts with verified work emails tracked across these 269 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 October 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 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.