Company lists · Data refreshed September 2026
Top 25 Carbon neutral contractors based in Spain
RevenueBase identified 1,904 carbon neutral contractors headquartered in Spain as of September 2026 and tracks 24,750 professional contacts across them, including 2,206 with verified work emails. Madrid is the largest hub.
This list covers carbon neutral contractors 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 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 carbon neutral contractors based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,422 contacts → | ||||
Indirect evidence “TYPSA is an independent consulting and engineering services group, and a leader in infrastructure, energy, environmental and city solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 729 contacts → | ||||
Indirect evidence “COPISA es un grupo empresarial con más de 65 años de experiencia, líder en construcción sostenible en el ámbito de las infraestructuras, la construcción industrial, la…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 688 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 538 contacts → | ||||
Indirect evidence “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 502 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 439 contacts → | ||||
Indirect evidence “We’re an Engineering and Consulting company with more than 35 years of experience and a diverse range of services in the Building, Infrastructure, Energy and Industry, Environment…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 363 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 351 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 328 contacts → | ||||
Indirect evidence “WSP is one of the world's leading companies in the development of professional engineering services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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. | |||||
| 11 | 268 contacts → | ||||
Indirect evidence “Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 253 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 237 contacts → | ||||
Indirect evidence “Empresa líder ibérica de servicios profesionales en ingeniería, arquitectura, medio ambiente y sostenibilidad.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 234 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 198 contacts → | ||||
Indirect evidence “PGI Engineering & Consulting es una empresa global de servicios de ingeniería y consultoría que trabaja transversalmente para dar las mejores soluciones técnicas de diseño a…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 179 contacts → | ||||
Indirect evidence “Fundada en 1988, Proyectos, Ejecución y Control de Obras S.A.(PROYECO) ofrece desde hace más de 35 años servicios de Consultoría, Asesoramiento y Project Management brindando…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 174 contacts → | ||||
Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 154 contacts → | ||||
Indirect evidence “Construcía S.L, company specializing in infrastructure development for businesses Our strategy as a company is based on an integrated service offering which combines solutions for…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 152 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 150 contacts → | ||||
Indirect evidence “Group of full service companies in the energy sector and circular economy, civil works and architecture.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 148 contacts → | ||||
Indirect evidence “PROES Consultores, S.A.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 138 contacts → | ||||
Indirect evidence “At Grupo Ramón García, a European market leader with over 40 years' experience, we offer comprehensive solutions for every stage of your project, from design to installation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 135 contacts → | ||||
Indirect evidence “TASH | Taller de Arquitectura Sánchez-Horneros es un estudio de arquitectura e ingeniería de edificación nacido en Toledo, con más de 20 años de trayectoria y presencia…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 131 contacts → | ||||
Indirect 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. | |||||
| 25 | 110 contacts → | ||||
Indirect evidence “BIENVENIDOS A GUNNI & TRENTINO [gunnitrentino.es] Barcelona · Bilbao · Madrid · Mallorca · Marbella · Bogotá · Doha Más de 50 años ofreciendo servicios integrales de interiorismo…” 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: carbon neutral contractors. 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 carbon neutral contractors.
- Partial evidence
- Its own public description names part of carbon neutral contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name carbon neutral contractors. 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 1,904 carbon neutral contractors based in Spain
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Carbon neutral contractors based in Spain at a glance
As of Sep 16, 2026Companies by employee count
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 1,904 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 carbon neutral contractors, 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 “carbon neutral contractors”. 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 carbon neutral contractors), 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 carbon neutral contractors, 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, 2,206 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.
Carbon neutral contractors by metro
- Carbon neutral contractors in Madrid298
- Carbon neutral contractors in Barcelona193
- Carbon neutral contractors in Valencia72
- Carbon neutral contractors in Sevilla51
- Carbon neutral contractors in Zaragoza37
- Carbon neutral contractors in Malaga36
- Carbon neutral contractors in Murcia32
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 carbon neutral contractors, 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 carbon neutral contractors are there based in Spain?
RevenueBase identified 1,904 carbon neutral contractors 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?
TYPSA, headquartered in San Sebastian De Los Reyes, tops this list with the largest team on record.
Which city has the most carbon neutral contractors?
Madrid leads with 298 headquartered companies, followed by Barcelona (193) and Valencia (72).
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 2,206 verified decision-maker contacts tracked across these 1,904 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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