Company lists · Data refreshed September 2026

Top 25 Geological consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 287 companies tracked

RevenueBase identified 287 geological consulting firms headquartered in Spain as of September 2026 and tracks 2,958 professional contacts across them, including 431 with verified work emails. Madrid is the largest hub.

This list covers geological consulting 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 28, 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 28, 2026 86% judged on-target in blind review

287Companies

2,958Contacts tracked

431Verified emails

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The 25 largest geological consulting firms based in Spain

Ranked by team size

Top 25 of 287 geological consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to geological consulting 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	Amphos 21	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	201-500	418 contacts →
	Indirect evidence “Founded in 1994, in Barcelona, Spain, Amphos21 includes three companies in Spain (1994), Chile (2009) and Peru (2012).” Source: RevenueBase Database · checked Sep 28, 2026
2	Insersa	Indirect evidence	Sevilla, SpainHQ checked Sep 28, 2026	501-1,000	205 contacts →
	Indirect evidence “INSERSA (Ingeniería de Suelos y Explotación de Recursos, S.A.) se constituyó en 1988 con una actividad inicial en sondeos y perforaciones mineras, en la que actualmente es líder…” Source: RevenueBase Database · checked Sep 28, 2026
3	Grupo SEG	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	201-500	153 contacts →
	Indirect evidence “LA EMPRESA SEG se fundó en 1969 con el propósito inicial de realizar estudios geotécnicos y ensayos de laboratorio.” Source: RevenueBase Database · checked Sep 28, 2026
4	Ideas Medioambientales	Partial evidence	Albacete, SpainHQ checked Sep 28, 2026	51-200	135 contacts →
	Partial evidence “Consulting company based in Castilla-La Mancha (Spain) of national and international scope.” Source: RevenueBase Database · checked Sep 28, 2026
5	Tecnoambiente	Indirect evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 28, 2026	51-200	126 contacts →
	Indirect evidence “Tecnoambiente, a wholly owned subsidiary of TRADEBE, is a multidisciplinary geoscience-environmental survey, subsea inspections and environmental consultancy company, with an…” Source: RevenueBase Database · checked Sep 28, 2026
6	Litoclean	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 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 28, 2026
7	Calconsa	Indirect evidence	Sevilla, SpainHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “Calconsa es una empresa dedicada a la consultoria de estructuras y cimentaciones especialmente en edificacion.” Source: RevenueBase Database · checked Sep 28, 2026
8	Geointec	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
9	Extrepronatur SL	Indirect evidence	Badajoz, SpainHQ checked Sep 28, 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 28, 2026
10	Ingenieros Asesores	Indirect evidence	Llanera, SpainHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Empresa multidisciplinar compuesta por personal con experiencia y diferentes perfiles técnicos (Ingenieros, Arquitectos, Geólogos, Químicos, etc.), que puede aportar soluciones…” Source: RevenueBase Database · checked Sep 28, 2026
11	Advanced Mineral Processing S.L	Indirect evidence	Móstoles, SpainHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Advanced Mineral Processing, S.L.(AMP) specializes in process engineering and equipment design for numerous industries, mainly Mining, Industrial Minerals, Coal, Sand and…” Source: RevenueBase Database · checked Sep 28, 2026
12	Consultoría DE Técnicas Ambientales	Partial evidence	Madrid, SpainHQ checked Sep 28, 2026	11-50	24 contacts →
	Partial 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 28, 2026
13	Ensaya	Indirect evidence	Cuarte De Huerva, SpainHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “GEOTECNIA: ENSAYA lleva realizando estudios geotécnicos desde los años 80 siendo uno de los líderes en el sector a nivel nacional.” Source: RevenueBase Database · checked Sep 28, 2026
14	SIDMA	Indirect evidence	El Puerto De Santa María, SpainHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Empresa de Ingeniería Ambiental.” Source: RevenueBase Database · checked Sep 28, 2026
15	Emberiza	Indirect evidence	La Coruña, SpainHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “EMBERIZA es la consultoría ambiental especialista en tramitación de infraestructuras de energías renovables.” Source: RevenueBase Database · checked Sep 28, 2026
16	GHM Consultores	Indirect evidence	Madrid, SpainHQ checked Sep 28, 2026	1-10	20 contacts →
	Indirect evidence “GHM Consultores is a company specialized in geotechnics, hydrology, and hydrogeology, with a particular focus on the prevention of risks associated with these activities.” Source: RevenueBase Database · checked Sep 28, 2026
17	Lurgintza, S.L	Indirect evidence	Bilbao, SpainHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Ingeniería geológica especialista en estudios geotécnicos, suelos contaminados, vertederos y control de geosintéticos.” Source: RevenueBase Database · checked Sep 28, 2026
18	Premea	Indirect evidence	Valencia, SpainHQ checked Sep 28, 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 28, 2026
19	Saalg Geomechanics	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “SAALG Geomechanics is an engineering firm specialized in advanced numerical solutions, numerical models calibrations and soil & rock parameters characterization by backanalysis…” Source: RevenueBase Database · checked Sep 28, 2026
20	Geoambient Consultoría Geológica S.L	Indirect evidence	Palleja, SpainHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “GEOAMBIENT es una consultoría geológica creada el año 2003, para ofrecer respuestas técnicas a las necesidades generadas en el ámbito de los Suelos contaminados, la Geotecnia y la…” Source: RevenueBase Database · checked Sep 28, 2026
21	Insdo SL	Indirect evidence	Barcelona, SpainHQ checked Sep 28, 2026	1-10	17 contacts →
	Indirect evidence “INSDO nace en el año 2009 con el objetivo de ser un referente de la coordinación e intermediación en la prestación de servicios de ingeniería.” Source: RevenueBase Database · checked Sep 28, 2026
22	Asturmine	Indirect evidence	Oviedo, SpainHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect evidence “At Asturmine we are at the cutting edge of mining.” Source: RevenueBase Database · checked Sep 28, 2026
23	Euro Geotecnica	Indirect evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Creada en 1990 es una sociedad independiente de carácter pluridisciplinar plenamente consolidada en el ámbito de la Geotécnica y la Ingeniería de Túneles, con unas referencias…” Source: RevenueBase Database · checked Sep 28, 2026
24	Talantia	Indirect evidence	Bilbao, SpainHQ checked Sep 28, 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 28, 2026
25	Anexo3 Ingeniería Y Desarrollo, S.L.P	Indirect evidence	Jerez De La Frontera, SpainHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “Somos una empresa de ingeniería comprometida con los proyectos de nuestros clientes, sus proyectos los hacemos nuestros.” Source: RevenueBase Database · checked Sep 28, 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: geological 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 geological consulting firms.
Partial evidence: Its own public description names part of geological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological 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 287 geological consulting firms based in Spain

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Geological consulting firms based in Spain at a glance

As of Sep 28, 2026

14.6%Verified-email coverage

10.3Average contacts per company

1-10Median size (employees)

14.3%Largest-city concentration · Madrid

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

196

11-50

51-200

201-500

501-1,000

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 287 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 geological 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 Spain whose own description of what they do matches “geological 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 geological 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 geological consulting 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, 431 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 28, 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.

Geological consulting firms by metro

Geological consulting firms in Barcelona25

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 geological 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 geological consulting firms are there based in Spain?

RevenueBase identified 287 geological consulting 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?

Amphos 21, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most geological consulting firms?

Madrid leads with 41 headquartered companies, followed by Barcelona (25) and Malaga (9).

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 431 verified decision-maker contacts tracked across these 287 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 28, 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.