Company lists · Data verified August 2026

Top 25 Ecological consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 505 companies tracked

There are 505 ecological consulting firms headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 4,087 professional contacts across them, including 452 with verified work emails and 34 with mobile numbers. Madrid is the largest hub.

This list covers ecological consulting firms headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

505Companies

4,087Contacts tracked

452Verified emails

34Mobile numbers

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The 25 largest ecological consulting firms based in Spain

Ranked by team size

Top 25 of 505 ecological consulting firms based in Spain, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Labaqua, S.A	n/a	201-500	240	32
2	Ecointegral Ingeniería, SL	Cordoba	201-500	232	26
3	Sm, Sistemas Medioambientales, SL	Barcelona	201-500	174	2
4	Ideas Medioambientales	Albacete	51-200	132	69
5	Cehtra	Madrid	51-200	92	72
6	Taxus Medio Ambiente	Oviedo	51-200	69	1
7	Tauw Iberia	Madrid	51-200	65	11
8	Agresta S. Coop	Cuenca	11-50	45	6
9	IGM Ingenieria Y Gestión Medioambiental	Madrid	201-500	43	1
10	Ecos Group	Santander	11-50	39	9
11	Esolve. Environmental Consulting And Engineering	Madrid	11-50	34	6
12	Ibersyd Iber Sostenibilidad Y Desarrollo	Zaragoza	11-50	30	1
13	Altácia	Madrid	11-50	30	1
14	Extrepronatur SL	Badajoz	11-50	29	1
15	EHS Techniques	Madrid	11-50	28	9
16	Idom Environment	Bilbao	1,001-5,000	27	6
17	Zumain Ingenieros	Madrid	11-50	26	7
18	Consulnima	n/a	11-50	26	2
19	SIDMA	El Puerto De Santa Maria	11-50	23	2
20	Síntesis Y Acción	La Canada Paterna	11-50	21	7
21	Premea	Valencia	11-50	19	2
22	Green Globe Sostenibilidad Y Proyectos Ambientales	Sevilla	11-50	19	2
23	SBS Simon I Blanco, SL	Barcelona	11-50	17	2
24	Mediterra Consultors Ambientals SL	Blanes	11-50	13	4
25	Anbiotek SL	Erandio	11-50	12	5

Showing 25 of 505 ecological consulting firms based in Spain

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Ecological consulting firms based in Spain at a glance

As of Aug 28, 2026

1-10Median size (employees)

MadridLargest hub · 73 HQs

34Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

362

11-50

117

51-200

201-500

501-1,000

1,001-5,000

Ecological consulting firms by metro

Metro	Companies
Ecological consulting firms in Madrid	73
Ecological consulting firms in Barcelona	39
Ecological consulting firms in Valencia	20
Ecological consulting firms in Sevilla	19
Ecological consulting firms in Malaga	17
Ecological consulting firms in Murcia	9
Ecological consulting firms in Oviedo	7

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “ecological consulting firms”, with match quality audited by blind human judging, and headquartered in Spain.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many ecological consulting firms are there based in Spain?

There are 505 ecological consulting firms headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Labaqua, S.A, headquartered in Spain, tops this list with the largest team on record.

Which city has the most ecological consulting firms?

Madrid leads with 73 headquartered companies, followed by Barcelona (39) and Valencia (20).

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 452 verified decision-maker contacts tracked across these 505 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.