Company lists · Data refreshed September 2026

Top 25 Industrial sustainability consultants based in Barcelona, Spain

Name: Industrial sustainability consultants based in Barcelona, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 119 companies tracked

RevenueBase identified 119 industrial sustainability consultants headquartered in Barcelona, Spain as of September 2026 and tracks 2,026 professional contacts across them, including 140 with verified work emails. Madrid is the largest hub.

This list covers industrial sustainability consultants headquartered in Barcelona, 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 17, 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 17, 2026 86% judged on-target in blind review

119Companies

2,026Contacts tracked

140Verified emails

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The 25 largest industrial sustainability consultants based in Barcelona, Spain

Ranked by team size

Top 25 of 119 industrial sustainability consultants based in Barcelona, Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial sustainability consultants: 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	AESA	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	n/a	351 contacts →
	Indirect evidence “Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.” Source: RevenueBase Database · checked Sep 17, 2026
2	Sm, Sistemas Medioambientales, SL	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	201-500	174 contacts →
	Indirect evidence “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tandem HSE	Strong evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	40 contacts →
	Strong evidence “TANDEM is an Industrial Safety and Environment consultancy, founded in 1995 and by a team of Engineers.” Source: RevenueBase Database · checked Sep 17, 2026
4	Cias COM 2001	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect evidence “CIAS COM consultoría especializada en la contratación, control de servicios generales y gestión de la eficiencia energética en Administraciones Públicas y organizaciones privadas” Source: RevenueBase Database · checked Sep 17, 2026
5	Erf, Energia & Sostenibilitat - Wattega	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial 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 17, 2026
6	Deplan, S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 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 17, 2026
7	Energía Local	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence “Somos una consultora especializada en el ámbito energético y sostenibilidad.” Source: RevenueBase Database · checked Sep 17, 2026
8	Adymus	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Consultora energética dedicada al desarrollo de proyectos de Eficiencia Energética y Energías Renovables.” Source: RevenueBase Database · checked Sep 17, 2026
9	Entorna3. Projectes Socioambientals	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “ENTORNa3 som una consultoria socioambiental especialitzada en la gestió de residus i serveis urbans.” Source: RevenueBase Database · checked Sep 17, 2026
10	CIB Partners	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Están nuestras compañías preparadas para los retos de la sociedad y economía actual?” Source: RevenueBase Database · checked Sep 17, 2026
11	Microtech Sistemas	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Empresa especializada en SERVICIOS de asesoramiento para el Análisis y/o Organización Empresarial, del diseño y la implantación de Soluciones de Tecnologías de la Información, de…” Source: RevenueBase Database · checked Sep 17, 2026
12	EU Waste	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “EUWASTE is a leading engineering and sustainability company with a presence in Barcelona and Buenos Aires.” Source: RevenueBase Database · checked Sep 17, 2026
13	Greenflex España	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	501-1,000	12 contacts →
	Indirect evidence “Desde 2009, GreenFlex es el socio clave en la transformación energética, medioambiental y social de las organizaciones, permitiéndoles cambiar su trayectoria hacia una economía…” Source: RevenueBase Database · checked Sep 17, 2026
14	Soren Energia SL	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	9 contacts →
	Indirect evidence “SOREN Energia és una Empresa de Serveis Energètics (ESE).” Source: RevenueBase Database · checked Sep 17, 2026
15	Tmi, Tractament Mediambiental Integral SL	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	8 contacts →
	Indirect evidence “Tractament Mediambiental Integral ( TMI ), se funda el año l996 con el objetivo de satisfacer las necesidades ambientales de las empresas.” Source: RevenueBase Database · checked Sep 17, 2026
16	Ferdinand Consultants	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial evidence “Ferdinand Consultants are thought leaders in creating a positive impact.” Source: RevenueBase Database · checked Sep 17, 2026
17	Símbiosy	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial evidence “SÍMBIOSY is an environmental consulting/engineering company specialized in circular economy and its implementation tool for the industry: the industrial symbiosis.” Source: RevenueBase Database · checked Sep 17, 2026
18	Envolta Energia	Partial evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “We are a services company focused on sustainability and on fighting climate change.” Source: RevenueBase Database · checked Sep 17, 2026
19	Visión Circular	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Potenciamos la sostenibilidad de tu proyecto en el marco de los ODS.” Source: RevenueBase Database · checked Sep 17, 2026
20	Honu Projects	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “HONU PROJECTS es una consultoría especializada en sostenibilidad turística, donde ayudamos a las empresas a identicar su posición actual en términos de sostenibilidad, ponemos en…” Source: RevenueBase Database · checked Sep 17, 2026
21	Reference Consulting	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “At Reference Consulting, we are dedicated to transforming organizations worldwide into more sustainable, efficient, human-centered, and prosperous entities.” Source: RevenueBase Database · checked Sep 17, 2026
22	Datambient	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “DATAMBIENT somos una empresa de consultoría que desarrollamos proyectos dentro del área de ingeniería y gestión del medio ambiente, especializada en el ámbito de residuos.” Source: RevenueBase Database · checked Sep 17, 2026
23	SB Ambiaudit	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “SBA es una consultoría e ingeniería medioambiental, especializada en Gestión del Medio Ambiente y del Territorio.” Source: RevenueBase Database · checked Sep 17, 2026
24	Efitekna Consultoría S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “EFITEKNA es una consultoría energética con una amplia experiencia en Optimización y Desarrollo de proyectos energéticos en España, Portugal, Sudamérica y Asia.” Source: RevenueBase Database · checked Sep 17, 2026
25	Green Living Projects	Indirect evidence	Barcelona, SpainHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Consultoría, formación e investigación para transformar el entorno construido con sostenibilidad integral y enfoque regenerativo.” Source: RevenueBase Database · checked Sep 17, 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: industrial sustainability consultants. 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 industrial sustainability consultants.
Partial evidence: Its own public description names part of industrial sustainability consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial sustainability consultants. 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 119 industrial sustainability consultants based in Barcelona, Spain

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Industrial sustainability consultants based in Barcelona, Spain at a glance

As of Sep 17, 2026

6.9%Verified-email coverage

17.0Average contacts per company

1-10Median size (employees)

170.6%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Spain list rather than for Barcelona, so it is reported there. Company counts and contact totals on this page are exact for Barcelona, over 119 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 industrial sustainability consultants, 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 Barcelona, Spain whose own description of what they do matches “industrial sustainability consultants”. 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 industrial sustainability consultants), 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 industrial sustainability consultants, and records with no verified work email. Companies headquartered outside Barcelona 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, 140 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 17, 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.

Industrial sustainability consultants by metro in Spain

Industrial sustainability consultants in Madrid203
Industrial sustainability consultants in Barcelona119
Industrial sustainability consultants in Valencia43
Industrial sustainability consultants in Sevilla33

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 industrial sustainability consultants, 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 industrial sustainability consultants are there based in Barcelona, Spain?

RevenueBase identified 119 industrial sustainability consultants headquartered in Barcelona, 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?

AESA, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most industrial sustainability consultants?

Madrid leads with 203 headquartered companies, followed by Barcelona (119) and Valencia (43).

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 140 verified decision-maker contacts tracked across these 119 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 17, 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.