Company lists · Data refreshed September 2026

Top 25 Marine geotechnical firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 240 companies tracked

RevenueBase identified 240 marine geotechnical firms headquartered in Spain as of September 2026 and tracks 2,330 professional contacts across them, including 215 with verified work emails. Madrid is the largest hub.

This list covers marine geotechnical 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 20, 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 20, 2026 86% judged on-target in blind review

240Companies

2,330Contacts tracked

215Verified emails

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The 25 largest marine geotechnical firms based in Spain

Ranked by team size

Top 25 of 240 marine geotechnical firms based in Spain, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine geotechnical 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	Insersa	Indirect evidence	Sevilla, SpainHQ checked Sep 20, 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 20, 2026
2	Grupo SEG	Indirect evidence	Madrid, SpainHQ checked Sep 20, 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 20, 2026
3	Tecnoambiente	Indirect evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 20, 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 20, 2026
4	Rodio Kronsa	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 20, 2026	201-500	99 contacts →
	Indirect evidence “Somos una empresa de referencia con más de 80 años de experiencia en cimentaciones y tecnologías de suelo.” Source: RevenueBase Database · checked Sep 20, 2026
5	Seaplace	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	51-200	63 contacts →
	Indirect evidence “Seaplace is an Offshore Engineering and Ship Design office.” Source: RevenueBase Database · checked Sep 20, 2026
6	Ecos Group	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 20, 2026	11-50	39 contacts →
	Indirect evidence “At ECOS Group (ECOS Estudios Ambientales y Oceanografía S.L.), we are an environmental consultancy and coastal engineering firm with over 18 years of experience, specialized in…” Source: RevenueBase Database · checked Sep 20, 2026
7	Siport21	Partial evidence	Las Rozas De Madrid, SpainHQ checked Sep 20, 2026	11-50	36 contacts →
	Partial evidence “Siport21 is a port engineering and maritime safety consulting company.” Source: RevenueBase Database · checked Sep 20, 2026
8	Geointec	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
9	Canlemar SL	Indirect evidence	Pontedeume, SpainHQ checked Sep 20, 2026	51-200	30 contacts →
	Indirect evidence “CANLEMAR SL es una empresa ubicada en Galicia, norte de España, dedicada a la realización de dragados y obras marítimas alrededor del mundo.” Source: RevenueBase Database · checked Sep 20, 2026
10	Amadesam S.L	Partial evidence	Mazagón, SpainHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “AMADESAM S.L is a maritime service company based out of Mazagón-Huelva, Spain.” Source: RevenueBase Database · checked Sep 20, 2026
11	Elittoral	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “elittoral S.L.N.E- Estudios de Ingeniería Costera y Oceanográfica Servicio integral de asesoramiento y consultoría en aquellas empresas o instituciones que pretendan acometer…” Source: RevenueBase Database · checked Sep 20, 2026
12	Cimentaciones Abando S.A	Indirect evidence	Bilbao-bilbo, SpainHQ checked Sep 20, 2026	51-200	27 contacts →
	Indirect evidence “Cimentaciones Abando, S.A.” Source: RevenueBase Database · checked Sep 20, 2026
13	Ingenieros Asesores	Indirect evidence	Llanera, SpainHQ checked Sep 20, 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 20, 2026
14	Aister	Partial evidence	Moaña, SpainHQ checked Sep 20, 2026	51-200	26 contacts →
	Partial evidence “We are a company specialized in marine aluminium sea works focused on Workboats, Maritime shipbuilding and Marinas.” Source: RevenueBase Database · checked Sep 20, 2026
15	Bluenewables	Indirect evidence	Tenerife, SpainHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “BlueNewables is an engineering consultancy at the cutting edge of the innovation within the blue economy.” Source: RevenueBase Database · checked Sep 20, 2026
16	Ensaya	Indirect evidence	Cuarte De Huerva, SpainHQ checked Sep 20, 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 20, 2026
17	GHM Consultores	Partial evidence	Madrid, SpainHQ checked Sep 20, 2026	1-10	20 contacts →
	Partial 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 20, 2026
18	Aquática Ingeniería Civil S.L	Indirect evidence	Vigo, SpainHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Aquática es una empresa independiente que presta servicios de ingeniería civil, arquitectura y consultoría financiera aplicada a estos fines.” Source: RevenueBase Database · checked Sep 20, 2026
19	Lurgintza, S.L	Indirect evidence	Bilbao, SpainHQ checked Sep 20, 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 20, 2026
20	Geoambient Consultoría Geológica S.L	Indirect evidence	Palleja, SpainHQ checked Sep 20, 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 20, 2026
21	Barcelona Engineering	Indirect evidence	Barcelona, SpainHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “At Barcelona Engineering, our passionate team specializes in designing underground infrastructure systems and delivering precise technical calculations that bring practical…” Source: RevenueBase Database · checked Sep 20, 2026
22	Euro Geotecnica	Indirect evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 20, 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 20, 2026
23	Seabots	Partial evidence	Barcelona, SpainHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Seabots is a technology company that delivers marine insights through robotics and data analytics.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ronáutica Marinas	Partial evidence	Tuy, SpainHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Ronautica Marinas comenzó su actividad de diseño, fabricación e instalación de puertos deportivos, puertos pesqueros y estructuras flotantes en 1989 con la construcción del Real…” Source: RevenueBase Database · checked Sep 20, 2026
25	Ingeniería Avanzada DE Obras Marítimas S.L.P. I	Indirect evidence	Valencia, SpainHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “Ingeniería de Obra Civil y Obras Marítimas.” Source: RevenueBase Database · checked Sep 20, 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: marine geotechnical 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 marine geotechnical firms.
Partial evidence: Its own public description names part of marine geotechnical firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine geotechnical 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 240 marine geotechnical firms based in Spain

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Marine geotechnical firms based in Spain at a glance

As of Sep 20, 2026

9.2%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

15.4%Largest-city concentration · Madrid

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

129

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 240 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 marine geotechnical 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 “marine geotechnical 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 marine geotechnical 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 marine geotechnical 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, 215 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 20, 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.

Marine geotechnical firms by metro

Marine geotechnical firms in Madrid37

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 marine geotechnical 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 marine geotechnical firms are there based in Spain?

RevenueBase identified 240 marine geotechnical 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?

Insersa, headquartered in Sevilla, tops this list with the largest team on record.

Which city has the most marine geotechnical firms?

Madrid leads with 37 headquartered companies, followed by Barcelona (22) and Vigo (6).

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 215 verified decision-maker contacts tracked across these 240 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 20, 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.