Company lists · Data refreshed September 2026

Top 25 Environmental organizations based in Spain

Name: Environmental organizations based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 867 companies tracked

RevenueBase identified 867 environmental organizations headquartered in Spain as of September 2026 and tracks 9,451 professional contacts across them, including 951 with verified work emails. Madrid is the largest hub.

This list covers environmental organizations 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 19, 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 19, 2026 86% judged on-target in blind review

867Companies

9,451Contacts tracked

951Verified emails

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The 25 largest environmental organizations based in Spain

Ranked by team size

Top 25 of 867 environmental organizations based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental organizations: 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	Urbaser	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	10001+	3,168 contacts →
	Indirect evidence “Urbaser es uno de los líderes mundiales en gestión medioambiental, una compañía global orientada a la sostenibilidad, que da servicio a más de 50 millones de personas en 20 países…” Source: RevenueBase Database · checked Sep 19, 2026
2	Talher S.A	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	222 contacts →
	Indirect evidence “Talher és una empresa de serveis mediambientals especialitzada en 4 àmbits: jardineria, forestal, neteja viària i recollida de residus sòlids urbans (RSU), i educació ambiental.” Source: RevenueBase Database · checked Sep 19, 2026
3	Ecoalf	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	203 contacts →
	Indirect evidence “Empowering a sustainable lifestyle that cares for our planet: fashion, sports and wellness.” Source: RevenueBase Database · checked Sep 19, 2026
4	Sm, Sistemas Medioambientales, SL	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	201-500	174 contacts →
	Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Sep 19, 2026
5	SEO Birdlife	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	109 contacts →
	Indirect evidence “SEO/BirdLife (Sociedad Española de Ornitología) está orientada a cumplir la función social que nos mueve desde 1954: estudiar y conservar las aves y la naturaleza y divulgar sus…” Source: RevenueBase Database · checked Sep 19, 2026
6	Ihobe, Sociedad Pública DE Gestión Ambiental DEL Gobierno Vasco	Strong evidence	Bilbao, SpainHQ checked Sep 19, 2026	11-50	101 contacts →
	Strong evidence “Ihobe is an Environmental Management Public Agency of the Basque Government whose aim is to support the Department for the Environment, Spatial Planning, Agriculture and Fisheries…” Source: RevenueBase Database · checked Sep 19, 2026
7	Emgrisa	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	84 contacts →
	Indirect evidence “Emgrisa es una empresa pionera en servicios y soluciones medioambientales y en economía circular.” Source: RevenueBase Database · checked Sep 19, 2026
8	Valenciana D'estratègies I Recursos PER A LA Sostenibilitat Ambiental	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	1,001-5,000	80 contacts →
	Indirect evidence “Vaersa Grup és l'empresa pública de la Generalitat Valenciana que presta tot tipus de serveis relacionats amb la gestió mediambiental, el desenvolupament de sistemes de gestió…” Source: RevenueBase Database · checked Sep 19, 2026
9	Greenpeace España	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Greenpeace es una organización ecologista y pacifista, económica y políticamente independiente, no acepta donaciones ni presiones de gobiernos o empresas” Source: RevenueBase Database · checked Sep 19, 2026
10	Taxus Medio Ambiente	Indirect evidence	Oviedo, SpainHQ checked Sep 19, 2026	51-200	71 contacts →
	Indirect evidence “TAXUS MEDIO AMBIENTE es una consultoría ambiental.” Source: RevenueBase Database · checked Sep 19, 2026
11	CIMAS	Indirect evidence	Bilbao, SpainHQ checked Sep 19, 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 19, 2026
12	WWF España	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “Somos la mayor organización de conservación de la naturaleza.” Source: RevenueBase Database · checked Sep 19, 2026
13	Institut Cerdà	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	54 contacts →
	Indirect evidence “Proyectos relacionados con la mitigación o la adaptación al cambio climático así como con la gestión de otros aspectos ambientales (Residuos, Aguas y Contaminación Atmosférica).” Source: RevenueBase Database · checked Sep 19, 2026
14	ACTÚA	Indirect evidence	Nonduermas, SpainHQ checked Sep 19, 2026	1,001-5,000	50 contacts →
	Indirect evidence “Especialistas en cuidar lo que nos rodea, con la sostenibilidad y respeto al medioambiente como gran valor.” Source: RevenueBase Database · checked Sep 19, 2026
15	Fundación Global Nature	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 19, 2026	11-50	48 contacts →
	Indirect evidence “Somos una fundación privada sin ánimo de lucro dedicada a la protección de la naturaleza.” Source: RevenueBase Database · checked Sep 19, 2026
16	ambientum.com	Indirect evidence	Las Rozas, SpainHQ checked Sep 19, 2026	11-50	47 contacts →
	Indirect evidence “Ambientum.com es el portal de Internet líder en el sector del medio ambiente y la industria, nacido de la vocación de ser el punto de encuentro entre los profesionales del mercado.” Source: RevenueBase Database · checked Sep 19, 2026
17	Agresta S. Coop	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “AGRESTA Sociedad Cooperativa es una consultora ambiental de ámbito nacional especializada en el sector forestal, ingeniería en el medio natural y estudios de impacto ambiental.” Source: RevenueBase Database · checked Sep 19, 2026
18	Grefa. Grupo DE Rehabilitación DE LA Fauna Autóctona Y SU Hábitat	Indirect evidence	Monte Del Pilar S/n. Majadahonda (madrid), SpainHQ checked Sep 19, 2026	51-200	43 contacts →
	Indirect evidence “GREFA (Grupo de Rehabilitación de la Fauna Autóctona y su Hábitat) es una organización no gubernamental sin ánimo de lucro, que nace en 1981 como asociación para el estudio y…” Source: RevenueBase Database · checked Sep 19, 2026
19	Grupo Sylvestris	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	40 contacts →
	Indirect evidence “SYLVESTRIS es una empresa de ingeniería natural que ofrece soluciones innovadoras integrando personas y naturaleza.” Source: RevenueBase Database · checked Sep 19, 2026
20	Esolve. Environmental Consulting And Engineering	Strong evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	35 contacts →
	Strong evidence “ESOLVE is an environmental consulting and engineering company that provides a wide range of professional services to private sector companies and public organizations for the…” Source: RevenueBase Database · checked Sep 19, 2026
21	Recyclia Ecopilas	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “RECYCLIA es la Plataforma Medioambiental de recogida selectiva y gestión de residuos electrónicos (RAEEs) y pilas usadas que aglutina la experiencia, conocimiento y labor de las…” Source: RevenueBase Database · checked Sep 19, 2026
22	Erf, Energia & Sostenibilitat - Wattega	Strong evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	33 contacts →
	Strong evidence “With over 20 years of expertise in the environmental sector, ERF-Energy and Sustainability is a significant firm in the strategic environmental consulting industry that it has…” Source: RevenueBase Database · checked Sep 19, 2026
23	Grupo Silvoturismo	Indirect evidence	Elda, SpainHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “Somos una empresa que en 2025 cumplimos veinticinco años de trayectoria profesional al servicio del medio ambiente.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sircat	Indirect evidence	Rubí, SpainHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Ofrecemos Servicios Medioambientales a todo tipo de empresas aportando soluciones de calidad que promuevan la economía circular y el desarrollo sostenible.” Source: RevenueBase Database · checked Sep 19, 2026
25	Altácia	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	29 contacts →
	Indirect evidence “Somos un socio de confianza estratégico para nuestros clientes.” Source: RevenueBase Database · checked Sep 19, 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: environmental organizations. 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 environmental organizations.
Partial evidence: Its own public description names part of environmental organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental organizations. 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 867 environmental organizations based in Spain

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Environmental organizations based in Spain at a glance

As of Sep 19, 2026

10.1%Verified-email coverage

10.9Average contacts per company

1-10Median size (employees)

19.3%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

658

11-50

158

51-200

201-500

1,001-5,000

10001+

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 867 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 environmental organizations, 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 “environmental organizations”. 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 environmental organizations), 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 environmental organizations, 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 19, 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.

Environmental organizations by metro

Environmental organizations in Madrid167
Environmental organizations in Barcelona87
Environmental organizations in Valencia34
Environmental organizations in Malaga25

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 environmental organizations, 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 environmental organizations are there based in Spain?

RevenueBase identified 867 environmental organizations 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?

Urbaser, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most environmental organizations?

Madrid leads with 167 headquartered companies, followed by Barcelona (87) and Valencia (34).

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 867 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 19, 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.