Company lists · Data refreshed September 2026

Top 25 Sustainability companies based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 835 companies tracked

RevenueBase identified 835 sustainability companies headquartered in Spain as of September 2026 and tracks 13,423 professional contacts across them, including 1,430 with verified work emails. Madrid is the largest hub.

This list covers sustainability companies 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

835Companies

13,423Contacts tracked

1,430Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest sustainability companies based in Spain

Ranked by team size

Top 25 of 835 sustainability companies 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 sustainability companies: 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	Inerco	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 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 19, 2026
3	Anthesis ESP	Indirect evidence	Manlleu, SpainHQ checked Sep 19, 2026	201-500	337 contacts →
	Indirect evidence “Som una empresa especialitzada en sostenibilitat, aliada amb les organitzacions, territoris i persones compromesos amb un món més sostenible, als quals acompanyem en la seva…” Source: RevenueBase Database · checked Sep 19, 2026
4	Garnica	Indirect evidence	Logroño, SpainHQ checked Sep 19, 2026	1,001-5,000	296 contacts →
	Indirect evidence “We’ve been challenging the ordinary since 1941.” Source: RevenueBase Database · checked Sep 19, 2026
5	Resgreen Europe SL	Indirect evidence	Alcorcón, SpainHQ checked Sep 19, 2026	201-500	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 19, 2026
6	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
7	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
8	Andreu World	Indirect evidence	Valencia, SpainHQ checked Sep 19, 2026	501-1,000	167 contacts →
	Indirect evidence “Andreu World is a B Corp® global manufacturer and a leading company in sustainable design, recognized as the first in the furniture industry to certify its entire product catalog…” Source: RevenueBase Database · checked Sep 19, 2026
9	Grup Tersa	Indirect evidence	Sant Adrià De Besòs, SpainHQ checked Sep 19, 2026	201-500	162 contacts →
	Indirect evidence “El Grup TERSA és una empresa pública, amb més de 35 anys d’història, de serveis mediambientals relacionats amb l’economia circular, la valorització de residus, la generació i…” Source: RevenueBase Database · checked Sep 19, 2026
10	Campezo Obras Y Servicios	Indirect evidence	Bilbao, SpainHQ checked Sep 19, 2026	201-500	113 contacts →
	Indirect evidence “Construimos y conservamos infraestructuras que nos acercan, que nos hacen la vida más fácil, espacios para vivir, para trabajar, para disfrutar… Desde 1940, ofrecemos soluciones…” Source: RevenueBase Database · checked Sep 19, 2026
11	SGA	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	88 contacts →
	Indirect evidence “At SGA, we specialize in comprehensive project management, offering customized solutions that allow each client to efficiently achieve their objectives.” Source: RevenueBase Database · checked Sep 19, 2026
12	Sygris	Strong evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 19, 2026	51-200	77 contacts →
	Strong evidence “Hi, we’re Sygris, Spain’s leader in sustainability consulting and ESG software.” Source: RevenueBase Database · checked Sep 19, 2026
13	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
14	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
15	Bluetree Group	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “Helping investors and energy companies maximise renewable asset performance while keeping risk under control.” Source: RevenueBase Database · checked Sep 19, 2026
16	TECAM	Indirect evidence	Polinyà, SpainHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect evidence “Customized solutions for waste valorization and emissions treatment.” Source: RevenueBase Database · checked Sep 19, 2026
17	Kepler Ingeniería Y Ecogestión	Indirect evidence	Burgos, SpainHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence “Soluciones a las empresas en la Preservación Medio Ambiente, Energías Renovables y BioGas.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	Ineria Management	Strong evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	48 contacts →
	Strong 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 19, 2026
20	Vizzuality	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	47 contacts →
	Indirect evidence “We are impact driven.” Source: RevenueBase Database · checked Sep 19, 2026
21	Konery	Indirect evidence	Murcia, SpainHQ checked Sep 19, 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 19, 2026
22	Transcendent	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	46 contacts →
	Indirect evidence “Transcendent es una consultora estratégica de Impacto y sostenibilidad.” Source: RevenueBase Database · checked Sep 19, 2026
23	Icsem Instituto Para EL Crecimiento Sostenible DE LA Empresa	Indirect evidence	Vigo, SpainHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “En ICSEM entendemos el crecimiento sostenible como indicador de generación de riqueza, que compromete al desarrollo, conciliando a la sociedad, a la economía y al medio ambiente.” Source: RevenueBase Database · checked Sep 19, 2026
24	21gramos	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Agencia de Branding y Comunicación especializada en Sostenibilidad desde 2007.” Source: RevenueBase Database · checked Sep 19, 2026
25	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

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: sustainability 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 sustainability companies.
Partial evidence: Its own public description names part of sustainability companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability 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 835 sustainability companies based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,430 reachable decision-makers.

Free signup · no credit card

View the full list →

Sustainability companies based in Spain at a glance

As of Sep 19, 2026

10.7%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

21.8%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

593

11-50

173

51-200

201-500

501-1,000

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 835 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 sustainability 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 Spain whose own description of what they do matches “sustainability 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 sustainability 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 sustainability companies, 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, 1,430 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.

Sustainability companies 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 sustainability 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 sustainability companies are there based in Spain?

RevenueBase identified 835 sustainability companies 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 sustainability companies?

Madrid leads with 182 headquartered companies, followed by Barcelona (144) and Valencia (40).

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 1,430 verified decision-maker contacts tracked across these 835 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.

Ready to reach these companies? Verified emails and direct dials for all 835 sustainability companies based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

Sustainability companies by geography

Browse the directory

Browse: Companies home · All Spain lists · All Sustainability companies lists · New lists

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.