Company lists · Data refreshed September 2026
Top 25 Sustainability consulting firms based in Madrid, Spain
RevenueBase identified 172 sustainability consulting firms headquartered in Madrid, Spain as of September 2026 and tracks 2,718 professional contacts across them, including 270 with verified work emails. Madrid is the largest hub.
This list covers sustainability consulting firms headquartered in Madrid, 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 6, 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.
The 25 largest sustainability consulting firms based in Madrid, Spain
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Indirect evidence | 252 contacts → | |||
“At Applus+, we provide environmental management services to help clients reduce their environmental footprint and improve operational efficiency, while minimizing risks and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Partial evidence | 191 contacts → | |||
“Harmon is a strategic consulting firm that advises organizations on interpreting their environment and connecting with their stakeholders through non-market strategies.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Indirect evidence | 152 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Indirect evidence | 84 contacts → | |||
“Emgrisa es una empresa pionera en servicios y soluciones medioambientales y en economía circular.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Partial evidence | 48 contacts → | |||
“At Ineria Management, we help Real Estate and Infrastructure companies integrate sustainability and decarbonization into their projects, creating value through ESG.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 46 contacts → | |||
“Transcendent es una consultora estratégica de Impacto y sostenibilidad.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Indirect evidence | 45 contacts → | |||
“G-advisory - Consultoría estratégica en Energía y ESG Filial de Garrigues que ofrece asesoramiento técnico, económico y estratégico en todo tipo de energías y servicios de ESG.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Indirect evidence | 29 contacts → | |||
“Somos un socio de confianza estratégico para nuestros clientes.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Indirect evidence | 28 contacts → | |||
“EHS TECHNIQUES is a Social, Environmental and Health and Safety consultancy with a team of professionals and associates with a strong experience in providing best available…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Indirect evidence | 27 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Partial evidence | 24 contacts → | |||
“Consultoría de Técnicas Ambientales is an independent company dedicated to monitoring, control, advice and environmental consulting; providing its service, both to the public and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Indirect evidence | 23 contacts → | |||
“Consultoría Project Manager.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Indirect evidence | 20 contacts → | |||
“We help companies identify, launch, and scale positive impact products and services that allow them to grow, differentiate, diversify, or mitigate risk.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Partial evidence | 16 contacts → | |||
“We are a boutique consultancy specialized in ESG+R services for the real estate sector focusing on sustainability, circular economy, well-being and digitalization with resilience…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Indirect evidence | 15 contacts → | |||
“At Be On Retail, we help healthcare retail companies grow through strategy, communication and business vision.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Indirect evidence | 14 contacts → | |||
“Climate change is an urgent reality, threatening lives, livelihoods, and future prosperity.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Strong evidence | 12 contacts → | |||
“We are a strategic consulting firm, specialized in Sustainability.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 12 contacts → | |||
“Enviroo, La Referencia Nº1 a Nivel Nacional En Emprendimiento Verde Enviroo nace en 2012 con la necesidad personal de su fundador, Agustín Valentín-Gamazo, de reinventarse aunando…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Indirect evidence | 10 contacts → | |||
“Valoriza Servicios Medioambientales es una empresa especializara en la prestación de servicios medioambientales, atendiendo a criterios de #eficiencia y #sostenibilidad en todos…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 10 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Indirect evidence | 9 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Indirect evidence | 9 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 9 contacts → | |||
“GAIAMBIENTE es una consultora especializada en medio ambiente que brinda sus servicios tanto a organismos públicos como a empresas privadas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 8 contacts → | |||
“One of the biggest issues companies face nowadays is balancing the short and the long term.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Indirect evidence | 7 contacts → | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
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 consulting 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 consulting firms.
- Partial evidence
- Its own public description names part of sustainability consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sustainability consulting 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 172 sustainability consulting firms based in Madrid, Spain
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Sustainability consulting firms based in Madrid, Spain at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 172 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 consulting 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 Madrid, Spain whose own description of what they do matches “sustainability consulting 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 consulting 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 consulting firms, and records with no verified work email. Companies headquartered outside Madrid 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, 270 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 6, 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 consulting firms by metro in Spain
- Sustainability consulting firms in Madrid172
- Sustainability consulting firms in Barcelona126
- Sustainability consulting firms in Valencia35
- Sustainability consulting firms in Sevilla29
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 consulting 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 consulting firms are there based in Madrid, Spain?
RevenueBase identified 172 sustainability consulting firms headquartered in Madrid, 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?
Applus Environment, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most sustainability consulting firms?
Madrid leads with 172 headquartered companies, followed by Barcelona (126) and Valencia (35).
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 270 verified decision-maker contacts tracked across these 172 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 6, 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.
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