Company lists · Data refreshed September 2026

Top 25 Air quality engineering firms based in Spain

Name: Air quality engineering firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 150 companies tracked

RevenueBase identified 150 air quality engineering firms headquartered in Spain as of September 2026 and tracks 2,857 professional contacts across them, including 310 with verified work emails. Madrid is the largest hub.

This list covers air quality engineering 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 30, 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 30, 2026 86% judged on-target in blind review

150Companies

2,857Contacts tracked

310Verified emails

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The 25 largest air quality engineering firms based in Spain

Ranked by team size

Top 25 of 150 air quality engineering firms based in Spain, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to air quality engineering 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	Inerco	Indirect evidence	Seville, SpainHQ checked Sep 30, 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 30, 2026
2	Applus Environment	Indirect evidence	Madrid, SpainHQ checked Sep 30, 2026	10001+	252 contacts →
	Indirect evidence “At Applus+, we provide environmental management services to help clients reduce their environmental footprint and improve operational efficiency, while minimizing risks and…” Source: RevenueBase Database · checked Sep 30, 2026
3	Labaqua, S.A	Indirect evidence	Alicante/alacant, SpainHQ checked Sep 30, 2026	201-500	240 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
4	Ecointegral Ingeniería, SL	Partial evidence	Córdoba, SpainHQ checked Sep 30, 2026	201-500	234 contacts →
	Partial evidence “ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Source: RevenueBase Database · checked Sep 30, 2026
5	Iproma	Indirect evidence	Castellon, SpainHQ checked Sep 30, 2026	201-500	229 contacts →
	Indirect evidence “IPROMA is one of the leading companies in the fields of environmental laboratory analysis, technical advice and industrial hygiene.” Source: RevenueBase Database · checked Sep 30, 2026
6	Litoclean	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	51-200	91 contacts →
	Indirect evidence “Litoclean es una consultora medioambiental experta en el desarrollo de proyectos de investigación y descontaminación de suelos.” Source: RevenueBase Database · checked Sep 30, 2026
7	DNOTA	Indirect evidence	Tres Cantos, SpainHQ checked Sep 30, 2026	51-200	72 contacts →
	Indirect evidence “DNOTA Medio Ambiente, S.L.” Source: RevenueBase Database · checked Sep 30, 2026
8	Tandem HSE	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	11-50	40 contacts →
	Indirect evidence “TANDEM is an Industrial Safety and Environment consultancy, founded in 1995 and by a team of Engineers.” Source: RevenueBase Database · checked Sep 30, 2026
9	Esolve. Environmental Consulting And Engineering	Partial evidence	Barcelona, SpainHQ checked Sep 30, 2026	11-50	35 contacts →
	Partial evidence “ESOLVE is an environmental consulting and engineering company that provides a wide range of professional services to private sector companies and public organizations for the…” Source: RevenueBase Database · checked Sep 30, 2026
10	Deplan, S.L	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 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 30, 2026
11	Extrepronatur SL	Indirect evidence	Badajoz, SpainHQ checked Sep 30, 2026	11-50	29 contacts →
	Indirect evidence “EXTREPRONATUR SL es una consultora medioambiental y servicios AVENIDA JUAN PEREDA PILA, 1, BADAJOZ, Badajoz, Spain.” Source: RevenueBase Database · checked Sep 30, 2026
12	Consultoría DE Técnicas Ambientales	Indirect evidence	Madrid, SpainHQ checked Sep 30, 2026	11-50	24 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 30, 2026
13	SIDMA	Indirect evidence	El Puerto De Santa María, SpainHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence “Empresa de Ingeniería Ambiental.” Source: RevenueBase Database · checked Sep 30, 2026
14	Inbiot Monitoring SL	Indirect evidence	Mutilva Alta, SpainHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “inBiot designs and manufactures smart IAQ technological solutions that contribute to creating healthier and energy-efficient workspaces.” Source: RevenueBase Database · checked Sep 30, 2026
15	Premea	Indirect evidence	Valencia, SpainHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “PrEMEA es una firma de consultoría técnica en seguridad y medioambiente especializada en el asesoramiento y la gestión técnica, de cualquier proyecto.” Source: RevenueBase Database · checked Sep 30, 2026
16	Condorchem Enviro Solutions	Strong evidence	Premià De Dalt, SpainHQ checked Sep 30, 2026	11-50	16 contacts →
	Strong evidence “We are an environmental engineering company that provides comprehensive solutions for wastewater treatment and air pollution control for all industrial activities.” Source: RevenueBase Database · checked Sep 30, 2026
17	Ambisalud	Indirect evidence	Madrid, SpainHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “Ambisalud está especializada en CONSULTORÍA de EFICIENCIA ENERGÉTICA de la climatización y de CALIDAD AMBIENTAL de los edificios.” Source: RevenueBase Database · checked Sep 30, 2026
18	Coproyma	Indirect evidence	Albacete, SpainHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “Servicios técnicos especializados de consultoría en Sistemas de gestión, Seguridad alimentaria y cosultoría ambiental, fundada en 2009 con un marcado carácter de atención…” Source: RevenueBase Database · checked Sep 30, 2026
19	Mediterra Consultors Ambientals SL	Indirect evidence	Blanes, SpainHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “Environmental and health and safety consultants.” Source: RevenueBase Database · checked Sep 30, 2026
20	Talantia	Indirect evidence	Bilbao, SpainHQ checked Sep 30, 2026	1-10	14 contacts →
	Indirect evidence “Consultoría medioambiental experta en la gestión de los suelos contaminados, aguas subterráneas y control atmosférico En este sector, considera que las aproximaciones existentes a…” Source: RevenueBase Database · checked Sep 30, 2026
21	EICON	Indirect evidence	Tarragona, SpainHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “eICON és una empresa jove i dinàmica dedicada a tasques de control i avaluació de la conformitat principalment als àmbits del medi ambient i la prevenció contra incendis.” Source: RevenueBase Database · checked Sep 30, 2026
22	Teknimap	Indirect evidence	Eibar, SpainHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “TEKNIMAP Energía y Medio Ambiente inicia su actividad en 1993 como empresa de consultoría e inspección medioambiental con una clara vocación industrial.” Source: RevenueBase Database · checked Sep 30, 2026
23	AAC Centro DE Acústica Aplicada S.L	Indirect evidence	Vitoria-gasteiz, SpainHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “Ingeniería especializada en materia de acústica, ruido, vibraciones, contaminación lumínica y energía que aplica las mejores técnicas disponibles con los planteamientos más…” Source: RevenueBase Database · checked Sep 30, 2026
24	Conterol	Indirect evidence	Burgos, SpainHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “CONTEROL se dedica a aportar a sus clientes soluciones a través del asesoramiento técnico en los ámbitos de seguridad industrial y medio ambiente.” Source: RevenueBase Database · checked Sep 30, 2026
25	DAC Enviro SL	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 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: air quality engineering 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 air quality engineering firms.
Partial evidence: Its own public description names part of air quality engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name air quality engineering 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 150 air quality engineering firms based in Spain

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Air quality engineering firms based in Spain at a glance

As of Sep 30, 2026

10.9%Verified-email coverage

19.0Average contacts per company

1-10Median size (employees)

17.3%Largest-city concentration · Madrid

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 150 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 air quality engineering 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 “air quality engineering 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 air quality engineering 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 air quality engineering 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, 310 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 30, 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.

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 air quality engineering 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 air quality engineering firms are there based in Spain?

RevenueBase identified 150 air quality engineering 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?

Inerco, headquartered in Seville, tops this list with the largest team on record.

Which city has the most air quality engineering firms?

Madrid leads with 26 headquartered companies, followed by Barcelona (21) and Seville (7).

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 310 verified decision-maker contacts tracked across these 150 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 30, 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.