Company lists · Data refreshed September 2026

Top 25 Sustainability reporting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 144 companies tracked

RevenueBase identified 144 sustainability reporting firms headquartered in Spain as of September 2026 and tracks 1,481 professional contacts across them, including 225 with verified work emails. Madrid is the largest hub.

This list covers sustainability reporting firms 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 22, 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 22, 2026 86% judged on-target in blind review

144Companies

1,481Contacts tracked

225Verified emails

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The 25 largest sustainability reporting firms based in Spain

Ranked by team size

Top 25 of 144 sustainability reporting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability reporting firms: 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	Anthesis ESP	Indirect evidence	Manlleu, SpainHQ checked Sep 22, 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 22, 2026
2	Sm, Sistemas Medioambientales, SL	Indirect evidence	Barcelona, SpainHQ checked Sep 22, 2026	201-500	174 contacts →
	Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Sep 22, 2026
3	Sygris	Partial evidence	San Sebastián De Los Reyes, SpainHQ checked Sep 22, 2026	51-200	77 contacts →
	Partial evidence “Hi, we’re Sygris, Spain’s leader in sustainability consulting and ESG software.” Source: RevenueBase Database · checked Sep 22, 2026
4	Ineria Management	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	48 contacts →
	Partial 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 22, 2026
5	Deplan, S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 22, 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 22, 2026
6	Ecoterrae	Indirect evidence	Sevilla, SpainHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “ECOTERRAE es una empresa creada con el objetivo de Generar Valor a proyectos Bajos en Carbono y con un Alto grado de Sostenibilidad, a través de:* Financiación del Carbono…” Source: RevenueBase Database · checked Sep 22, 2026
7	Omawa Huella Ecológica	Indirect evidence	Palencia, SpainHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “OMAWA es una consultora creada con la vocación de ofrecer un servicio diferente y de alto valor añadido, que permita abordar la SOSTENIBILIDAD en cualquier organización…” Source: RevenueBase Database · checked Sep 22, 2026
8	Grunver Sostenibilidad	Indirect evidence	Las Arenas, SpainHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “La amplia diversidad que caracteriza el sector medioambiental hace que cada vez se demanden más profesionales para la elaboración de planes y programas relacionadas con el…” Source: RevenueBase Database · checked Sep 22, 2026
9	Canvas Estrategias Sostenibles	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	12 contacts →
	Partial evidence “We are a strategic consulting firm, specialized in Sustainability.” Source: RevenueBase Database · checked Sep 22, 2026
10	Conese	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “conese es la firma de consultoría que acompaña a las organizaciones en su camino hacia la integración de la sostenibilidad en su estrategia empresarial.” Source: RevenueBase Database · checked Sep 22, 2026
11	Erre ESE	Indirect evidence	Valladolid, SpainHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “Somos consultores especializados en Responsabilidad Social: gestión ambiental, gestión de personas y gestión económica responsable.” Source: RevenueBase Database · checked Sep 22, 2026
12	Ingenature	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “Ingenature \| Sostenibilidad estratégica para real estate En Ingenature ayudamos a promotores e inversores a financiar, reducir riesgos y aumentar el valor de sus activos mediante…” Source: RevenueBase Database · checked Sep 22, 2026
13	Greenme	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	9 contacts →
	Indirect evidence “Hoy en día, muchas empresas se enfrentan al reto de ser sostenibles, y el reto es todavía mayor cuando se quiere conseguir sin comprometer la rentabilidad.” Source: RevenueBase Database · checked Sep 22, 2026
14	Gaiambiente	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	9 contacts →
	Indirect evidence “GAIAMBIENTE es una consultora especializada en medio ambiente que brinda sus servicios tanto a organismos públicos como a empresas privadas.” Source: RevenueBase Database · checked Sep 22, 2026
15	Treserres Soluciones Sostenibles	Indirect evidence	Alicante, SpainHQ checked Sep 22, 2026	1-10	8 contacts →
	Indirect evidence “TRESERRES nace para mejorar el medioambiente a través del asesoramiento a las empresas.” Source: RevenueBase Database · checked Sep 22, 2026
16	Punto ESG -Sustainability & ESG	Indirect evidence	Madrid, SpainHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “Con 25 años de experiencia en #sostenibilidad y más de 300 #reportes en #LATAM, asesoramos a empresas para desarrollar de manera efectiva su gestión de sostenibilidad e integrar…” Source: RevenueBase Database · checked Sep 22, 2026
17	Blue Synergy SL	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	7 contacts →
	Partial evidence “Blue Synergy emerged from the need of engaging long-term sustainability in the environmental and social domains with economic benefits for the stakeholders involved, from…” Source: RevenueBase Database · checked Sep 22, 2026
18	Visión Circular	Indirect evidence	Barcelona, SpainHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Potenciamos la sostenibilidad de tu proyecto en el marco de los ODS.” Source: RevenueBase Database · checked Sep 22, 2026
19	Triple Sustainability	Partial evidence	Madrid, SpainHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial evidence “Triple Sustainability counts on Senior Principal Advisors that after having long professional careers at either large corporations or academy decided to offer their knowledge and…” Source: RevenueBase Database · checked Sep 22, 2026
20	RMC Ambiental	Indirect evidence	Murcia, SpainHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “RMC AMBIENTAL es una empresa que nace con el objetivo de lograr cumplir con las necesidades de nuestros clientes mediante la implantación de sistemas de sostenibilidad y…” Source: RevenueBase Database · checked Sep 22, 2026
21	Loop Sustainability Consulting	Indirect evidence	SpainHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “At Loop, we provide organisations with the framework they need to understand and improve their environmental and social impact.” Source: RevenueBase Database · checked Sep 22, 2026
22	Grupo Sogres-Mf	Indirect evidence	Castellón De La Plana, SpainHQ checked Sep 22, 2026	11-50	4 contacts →
	Indirect evidence “SoGReS es un equipo de profesionales de la Universitat Jaume I, en el ámbito de la Sostenibilidad y la RSC, que ofrece un servicio pionero de consultoría y formación, de carácter…” Source: RevenueBase Database · checked Sep 22, 2026
23	Objetivo Cero	Indirect evidence	Castellón De La Plana, SpainHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Prestamos servicios de consultoría en materia de sostenibilidad corporativa.” Source: RevenueBase Database · checked Sep 22, 2026
24	Engloba Consulting Professional Services, SL	Indirect evidence	Blanes, SpainHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Engloba Consulting is an employee-owned organization founded in 2015 by seniors’ environmentalists.” Source: RevenueBase Database · checked Sep 22, 2026
25	Reavive	Indirect evidence	Cádiz, SpainHQ checked Sep 22, 2026	1-10	3 contacts →
	Indirect evidence “Especialistas en consultoría ambiental, queremos acompañarte en tu camino por reducir la huella en nuestro planeta, por ello, somos el punto de encuentro para los verdólogos y…” Source: RevenueBase Database · checked Sep 22, 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 reporting firms. 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 reporting firms.
Partial evidence: Its own public description names part of sustainability reporting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability reporting firms. 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 144 sustainability reporting firms based in Spain

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Sustainability reporting firms based in Spain at a glance

As of Sep 22, 2026

15.2%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

29.9%Largest-city concentration · Madrid

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

111

11-50

51-200

201-500

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 144 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 reporting firms, 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 reporting firms”. 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 reporting firms), 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 reporting firms, 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, 225 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 22, 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 reporting firms by metro

Sustainability reporting firms in Madrid43

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 reporting firms, 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 reporting firms are there based in Spain?

RevenueBase identified 144 sustainability reporting firms 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?

Anthesis ESP, headquartered in Manlleu, tops this list with the largest team on record.

Which city has the most sustainability reporting firms?

Madrid leads with 43 headquartered companies, followed by Barcelona (24) and Zaragoza (5).

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 225 verified decision-maker contacts tracked across these 144 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 22, 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.