Company lists · Data refreshed October 2026

Top 25 Buildings decarbonization consultants based in Spain

RevenueBase identified 647 company matches for buildings decarbonization consultants associated with Spain as of October 2026 and tracks 5,190 professional contacts across them, including 581 with verified work emails. Madrid is the largest hub.

This list covers company matches for buildings decarbonization 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 9, 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 9, 2026 How this list was built
647Companies
5,190Contacts tracked
581Verified emails
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The 25 largest buildings decarbonization consultants based in Spain

Ranked by team size
Top 25 of 647 company matches for buildings decarbonization consultants based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 matchSeville, SpainHQ recorded Oct 9, 20261,001-5,000735 contacts →

Exact match

“INERCO is a multinational technology company specialising in sustainability.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchBarcelona, SpainHQ recorded Oct 9, 2026n/a376 contacts →

Exact match

“Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Oct 9, 202651-200250 contacts →

Exact match

“VALORA is a consulting company who focus its activity towards a new professional innovative and thrilling challenge.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Oct 9, 202651-200168 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5Exact matchBollullos De La Mitación, SpainHQ recorded Oct 9, 2026201-500164 contacts →

Exact match

“QUANTICA Renovables is a company dedicated to providing cost and carbon efficiencies.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchSant Joan Despi, SpainHQ recorded Oct 9, 202651-20098 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Oct 9, 202611-5084 contacts →

Exact match

“NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8Exact matchValencia/valència, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
9Exact matchMurcia, SpainHQ recorded Oct 9, 202651-20053 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Oct 9, 202611-5050 contacts →

Exact match

“At Ineria Management, we help Real Estate and Infrastructure companies integrate sustainability and decarbonization into their projects, creating value through ESG.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchOlot, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
12Exact matchSant Cugat Del Vallès, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
13Exact matchZaragoza, SpainHQ recorded Oct 9, 202611-5034 contacts →

Exact match

“Consultora ambiental y de sostenibilidad social y económica.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14Exact matchBadajoz, SpainHQ recorded Oct 9, 202611-5034 contacts →

Exact match

“Emececuadrado es una de las principales compañías del sector energético, especializada en el asesoramiento y la optimización de recursos energéticos para empresas, organismos…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15Exact matchDerio, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
16Exact matchBarcelona, SpainHQ recorded Oct 9, 202611-5031 contacts →

Exact match

“En Deplan llevamos más de 30 años ofreciendo soluciones de ingeniería, consultoría ambiental y sostenibilidad para empresas y organizaciones.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchSeville, SpainHQ recorded Oct 9, 202611-5029 contacts →

Exact match

“GE & PE was created in 1983 with the purpose of covering the needs and increasingly complex management and efficiency tasks related to the supply and consumption of energy by…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18Exact matchBarcelona, SpainHQ recorded Oct 9, 202611-5028 contacts →

Exact match

“Zero Consulting by Accumin is a leading consultancy in sustainable construction, specializing in carbon footprint reduction and project certification under BREEAM, VERDE, LEED…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Oct 9, 202611-5027 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchPalma De Mallorca, SpainHQ recorded Oct 9, 202611-5027 contacts →

Exact match

“Enovam, ya en su décimo aniversario, es líder en la gestión energética, operando en la actualidad con establecimientos y con participación en +250 proyectos de eficiencia…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21Exact matchBarcelona, SpainHQ recorded Oct 9, 202611-5027 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22Exact matchSeville, SpainHQ recorded Oct 9, 202611-5026 contacts →

Exact match

“ECOTERRAE es una empresa creada con el objetivo de Generar Valor a proyectos Bajos en Carbono y con un Alto grado de Sostenibilidad, a través de:* Financiación del Carbono…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchGranada, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
24Exact matchBarcelona, SpainHQ recorded Oct 9, 202611-5024 contacts →

Exact match

“Consultora energética dedicada al desarrollo de proyectos de Eficiencia Energética y Energías Renovables.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchValencia, SpainHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase

Showing 25 of 647 buildings decarbonization consultants based in Spain

See the full list, filter by size, metro and specialty, and access 581 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Buildings decarbonization consultants based in Spain at a glance

As of Oct 9, 2026
11.2%Verified-email coverage
8.0Average contacts per company
1-10Median size (employees)
18.2%Largest-city concentration · Madrid
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
432
11-50
179
51-200
25
201-500
5
501-1,000
3
1,001-5,000
2

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 647 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 “buildings decarbonization 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 581 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 9, 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.

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 “buildings decarbonization consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many buildings decarbonization consultants are there based in Spain?

RevenueBase identified 647 company matches for buildings decarbonization 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?

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

Which city has the most buildings decarbonization consultants?

Madrid leads with 118 company records, followed by Barcelona (63) and Valencia (30).

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 581 professional contacts with verified work emails tracked across these 647 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 9, 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.