Company lists · Data refreshed September 2026

Top 25 Green building consultancies based in Spain

Name: Green building consultancies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,154 companies tracked

RevenueBase identified 1,154 green building consultancies headquartered in Spain as of September 2026 and tracks 9,942 professional contacts across them, including 951 with verified work emails. Madrid is the largest hub.

This list covers green building consultancies 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 28, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,154Companies

9,942Contacts tracked

951Verified emails

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The 25 largest green building consultancies based in Spain

Ranked by team size

Top 25 of 1,154 green building consultancies based in Spain, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to green building consultancies: 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	Inerco	Indirect evidence	Sevilla, SpainHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
2	Incosa	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	439 contacts →
	Partial 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 28, 2026
3	Iplan Gestión Integral	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	501-1,000	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 28, 2026
4	AESA	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	n/a	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 28, 2026
5	Sólida	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	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 28, 2026
6	Ecointegral Ingeniería, SL	Indirect evidence	Córdoba, SpainHQ checked Sep 28, 2026	201-500	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 28, 2026
7	PGI Engineering & Consulting	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	51-200	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 28, 2026
8	Proyeco, S.A	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	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 28, 2026
9	Sm, Sistemas Medioambientales, SL	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	201-500	174 contacts →
	Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Sep 28, 2026
10	MAI Group	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	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 28, 2026
11	Valladares Ingeniería S.L	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	51-200	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 28, 2026
12	Heymo Ingeniería, S.A.U	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	109 contacts →
	Indirect evidence “HEYMO es una empresa de servicios profesionales de ingeniería y consultoría que cuenta con 60 años de experiencia nacional e internacional.” Source: RevenueBase Database · checked Sep 28, 2026
13	Grupo Argenia	Indirect evidence	Seville, SpainHQ checked Sep 28, 2026	51-200	100 contacts →
	Indirect evidence “Somos una consultora especializada en edificación, nuestra experiencia se ha desarrollado principalmente en los sectores industrial, retail, y hotelero.” Source: RevenueBase Database · checked Sep 28, 2026
14	Taxus Medio Ambiente	Indirect evidence	Oviedo, SpainHQ checked Sep 28, 2026	51-200	71 contacts →
	Indirect evidence “TAXUS MEDIO AMBIENTE es una consultoría ambiental.” Source: RevenueBase Database · checked Sep 28, 2026
15	CIMAS	Indirect evidence	Bilbao, SpainHQ checked Sep 28, 2026	n/a	69 contacts →
	Indirect evidence “CIMAS Innovación y Medio Ambiente es una compañía de servicios avanzados especializada en Desarrollo Sostenible y Medio Ambiente.” Source: RevenueBase Database · checked Sep 28, 2026
16	Azigrene Energy Consulting	Indirect evidence	Valencia/valència, SpainHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect 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 28, 2026
17	Ineria Management	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “At Ineria Management, we help Real Estate and Infrastructure companies integrate sustainability and decarbonization into their projects, creating value through ESG.” Source: RevenueBase Database · checked Sep 28, 2026
18	Konery	Indirect evidence	Murcia, SpainHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect 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 28, 2026
19	Transcendent	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	46 contacts →
	Indirect evidence “Transcendent es una consultora estratégica de Impacto y sostenibilidad.” Source: RevenueBase Database · checked Sep 28, 2026
20	Solideo ECO Systems	Indirect evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 28, 2026	51-200	44 contacts →
	Indirect evidence “We are an engineering and consulting company specialised in solar energy and energy efficiency.” Source: RevenueBase Database · checked Sep 28, 2026
21	AIA Activitats Instal Lacions Arquitectòniques	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “AIA are a multidisciplinary team, with 25 years of experience and over 300 built projects; composed of architects, engineers and consultants experts on carrying out architectural…” Source: RevenueBase Database · checked Sep 28, 2026
22	Iver Ingeniería & Arquitectura	Indirect evidence	Valencia/valència, SpainHQ checked Sep 28, 2026	n/a	39 contacts →
	Indirect evidence “En IVER Ingeniería & Arquitectura nos avalan 28 años de experiencia como consultora de Ingeniería & Arquitectura en Valencia.” Source: RevenueBase Database · checked Sep 28, 2026
23	Colomer-Rifà	Indirect evidence	Vic, SpainHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “CAT: Colomer-Rifà és un despatx professional especialitzat en el disseny de projectes i la direcció d'obres en els àmbits de l'enginyeria, l'arquitectura i el medi ambient.” Source: RevenueBase Database · checked Sep 28, 2026
24	House Habitat	Indirect evidence	Abrera, SpainHQ checked Sep 28, 2026	n/a	37 contacts →
	Indirect evidence “House Habitat construye casas saludables y eficientes energéticamente, con estructura de madera, basadas en la arquitectura bioclimática, siguiendo los criterios del estándar…” Source: RevenueBase Database · checked Sep 28, 2026
25	JSS Efficient Engineering	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	11-50	36 contacts →
	Indirect evidence “JSS ENGINYERIA I ARQUITECTURA és un despatx fundat per Francesc Juncosa, Mª Lluïsa Sánchez i Carles Subirats el 1990 que integra en l’actualitat professionals de diferents…” Source: RevenueBase Database · checked Sep 28, 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: green building consultancies. 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 green building consultancies.
Partial evidence: Its own public description names part of green building consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name green building consultancies. 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 1,154 green building consultancies based in Spain

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Green building consultancies based in Spain at a glance

As of Sep 28, 2026

9.6%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

17.1%Largest-city concentration · Madrid

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

838

11-50

265

51-200

201-500

501-1,000

1,001-5,000

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 1,154 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 green building consultancies, 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 “green building consultancies”. 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 green building consultancies), 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 green building consultancies, 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, 951 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 28, 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.

Green building consultancies by metro

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 green building consultancies, 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 green building consultancies are there based in Spain?

RevenueBase identified 1,154 green building consultancies 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?

Inerco, headquartered in Sevilla, tops this list with the largest team on record.

Which city has the most green building consultancies?

Madrid leads with 197 headquartered companies, followed by Barcelona (120) and Valencia (51).

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 951 verified decision-maker contacts tracked across these 1,154 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 28, 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.