Company lists · Data refreshed September 2026

Top 25 Environmental sustainability companies based in Spain

Name: Environmental 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 571 companies tracked

RevenueBase identified 571 environmental sustainability companies headquartered in Spain as of September 2026 and tracks 9,937 professional contacts across them, including 1,108 with verified work emails. Madrid is the largest hub.

This list covers environmental 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

571Companies

9,937Contacts tracked

1,108Verified emails

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The 25 largest environmental sustainability companies based in Spain

Ranked by team size

Top 25 of 571 environmental 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 environmental 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	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	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
6	MAI Group	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	152 contacts →
	Partial 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 19, 2026
7	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
8	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
9	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
10	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
11	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
12	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
13	Intacta Gestión Ambiental	Indirect evidence	As Pontes De García Rodríguez, SpainHQ checked Sep 19, 2026	11-50	45 contacts →
	Indirect evidence “Intacta surge como una sinergia que une la participación activa y concertada para alcanzar una eficacia total y garantizar cualquier servicio medioambiental, pero con ella nace…” Source: RevenueBase Database · checked Sep 19, 2026
14	Serviguide Consultancy	Indirect evidence	A Coruña, SpainHQ checked Sep 19, 2026	51-200	42 contacts →
	Indirect evidence “At Serviguide Consultoría, we help companies understand the context in which they operate and visualize the trends that guide their decision-making processes.” Source: RevenueBase Database · checked Sep 19, 2026
15	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
16	Eurovértice Consultants	Partial evidence	Murcia, SpainHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “EuroVértice is a firm specializing in innovation and sustainability for the transformation of cities and territories through European funding and cooperation.” Source: RevenueBase Database · checked Sep 19, 2026
17	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
18	Vector Horizonte	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 2026	11-50	32 contacts →
	Indirect evidence “En Vector Horizonte somos una consultora de financiación pública y sostenibilidad que convierte ideas audaces en crecimiento tangible.” Source: RevenueBase Database · checked Sep 19, 2026
19	Deplan, S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “En Deplan llevamos más de 30 años ofreciendo soluciones de ingeniería, consultoría ambiental y sostenibilidad para empresas y organizaciones.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ibersyd Iber Sostenibilidad Y Desarrollo	Indirect evidence	Zaragoza, SpainHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Consultora ambiental y de sostenibilidad social y económica.” Source: RevenueBase Database · checked Sep 19, 2026
21	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
22	Energy Tools	Indirect evidence	Olot, SpainHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “A Energy Tools, empresa líder en el mercat, ajudem, de manera ètica i transparent, les empreses amb grans consums energètics a prendre les millors decisions.” Source: RevenueBase Database · checked Sep 19, 2026
23	Energía Local	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Somos una consultora especializada en el ámbito energético y sostenibilidad.” Source: RevenueBase Database · checked Sep 19, 2026
24	Zumain Ingenieros	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Zumain Ingenieros, inicia su andadura en el año 2002, con la intención de desarrollar su trabajo en el sector de los estudios y proyectos ambientales, con el objetivo de dar un…” Source: RevenueBase Database · checked Sep 19, 2026
25	Letter Ingenieros	Indirect evidence	Granada, SpainHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “We offer companies efficient solutions with the best consulting and engineering services in: Energy Management Energy certification and qualification of buildings Energy…” 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 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 environmental sustainability companies.
Partial evidence: Its own public description names part of environmental sustainability companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental 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 571 environmental sustainability companies based in Spain

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Environmental sustainability companies based in Spain at a glance

As of Sep 19, 2026

11.2%Verified-email coverage

17.4Average contacts per company

1-10Median size (employees)

22.4%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

417

11-50

109

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 571 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 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 “environmental 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 environmental 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 environmental 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, 1,108 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 sustainability companies by metro

Environmental sustainability companies in Madrid128
Environmental sustainability companies in Barcelona79

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 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 environmental sustainability companies are there based in Spain?

RevenueBase identified 571 environmental 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 environmental sustainability companies?

Madrid leads with 128 headquartered companies, followed by Barcelona (79) and Valencia (19).

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 1,108 verified decision-maker contacts tracked across these 571 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.