Company lists · Data refreshed September 2026
Top 25 Building decarbonization companies based in Madrid, Spain
RevenueBase identified 186 building decarbonization companies headquartered in Madrid, Spain as of September 2026 and tracks 2,143 professional contacts across them, including 122 with verified work emails. Madrid is the largest hub.
This list covers building decarbonization companies headquartered in Madrid, 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 16, 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.
The 25 largest building decarbonization companies based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 298 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 131 contacts → | ||||
Partial evidence “Within VALLADARES_ing, engineering challenges are part of our everyday" Global engineering and sustainable buildings Applying our vast experience we strive to provide our clients…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 81 contacts → | ||||
Indirect evidence “NESS, empresa de servicios energéticos especializada en la gestión y ahorro energético.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 61 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 22 contacts → | ||||
Indirect evidence “ALISEA es una de las Empresas de Servicios Energéticos pionera en España especializada en promover proyectos de eficiencia energética, por medio del diseño y soluciones para el…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Partial evidence “In Ecómetro we develop technologies, consulting and training to help you incorporate the measurement of the carbon footprint and the certification of buildings CO2 free emisions…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 contacts → | ||||
Indirect evidence “We work with our clients to help them reduce their energy use and cost and related environmental impact including green house gas emissions through energy management systems based…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Indirect evidence “ARDITECNICA is a company established in as part of the German group Bayerische Hausbau, created for the planning and control of the execution of the projects that the group…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Indirect evidence “R.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Indirect evidence “Entiba es una compañía consultora y de ingeniería.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Indirect evidence “Ingenature | Sostenibilidad estratégica para real estate En Ingenature ayudamos a promotores e inversores a financiar, reducir riesgos y aumentar el valor de sus activos mediante…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Grupo Cim es una empresa con más 20 años de experiencia como Consultoría integral y multidisciplinar de Ingeniería y Project Management, consolidados en mercado como especialistas…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Indirect evidence “Equilivra Ingenieros es una consultora de ingeniería especializada en los campos del diseño, control, puesta en marcha y validación de instalaciones y en el asesoramiento en la…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “Consultoría energética especializada en energías renovables y soluciones de mejora energética.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “Cubite is an architectural and engineering office specialising in the energy refurbishment of buildings located in Madrid.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “Compañía independiente de arquitectos, ingenieros y economistas especializados en proyectos de arquitectura corporativa, ingeniería, mantenimiento y gestión energética sostenible…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “En Atrenti ponemos el diseño y la ingeniería al servicio de la eficiencia energética y la rentabilidad con soluciones tecnológicas de vanguardia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “Somos una consultora especializada en sostenibilidad e ingeniería ambiental, dedicada a potenciar la competitividad de las organizaciones mediante la integración estratégica de la…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Cleanergetic's mission is to develop innovative services and solutions that can reduce carbon footprint in residential and commercial segments by improving the energy efficiency…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “EfiCities, está formado por un grupo multidisciplinar de técnicos, procedentes de ámbitos como la Construcción, Arquitectura o Ingeniería, motivados por ofrecer un Asesoramiento…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Asesoramiento en la reducción de costes en servicios primarios como: energía, seguros, seguridad y telecomunicaciones.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Zero Energy Consumption es una empresa de servicios de consultoría en el ámbito de la arquitectura y la ingeniería de instalaciones, enfocada a proyectos especiales o singulares…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Arquitectos e ingenieros técnicos en Madrid especialistas en rehabilitación y eficiencia energética.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: building decarbonization companies. 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 building decarbonization companies.
- Partial evidence
- Its own public description names part of building decarbonization companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name building decarbonization companies. 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 186 building decarbonization companies based in Madrid, Spain
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Building decarbonization companies based in Madrid, Spain at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 186 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 building decarbonization companies, 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 Madrid, Spain whose own description of what they do matches “building decarbonization companies”. 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 building decarbonization companies), 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 building decarbonization companies, and records with no verified work email. Companies headquartered outside Madrid 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, 122 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 16, 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.
Building decarbonization companies by metro in Spain
- Building decarbonization companies in Madrid186
- Building decarbonization companies in Barcelona99
- Building decarbonization companies in Valencia41
- Building decarbonization companies in Sevilla33
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 building decarbonization companies, 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 building decarbonization companies are there based in Madrid, Spain?
RevenueBase identified 186 building decarbonization companies headquartered in Madrid, 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?
Sólida, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most building decarbonization companies?
Madrid leads with 186 headquartered companies, followed by Barcelona (99) and Valencia (41).
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 122 verified decision-maker contacts tracked across these 186 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 16, 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.
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