Company lists · Data refreshed September 2026

Top 25 Marine resource consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 211 companies tracked

RevenueBase identified 211 marine resource consulting firms headquartered in Spain as of September 2026 and tracks 1,568 professional contacts across them, including 205 with verified work emails and 19 with mobile numbers. Madrid is the largest hub.

This list covers marine resource 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 5, 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 5, 2026 86% judged on-target in blind review

211Companies

1,568Contacts tracked

205Verified emails

19Mobile numbers

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The 25 largest marine resource consulting firms based in Spain

Ranked by team size

Top 25 of 211 marine resource consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to marine resource 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	Ideas Medioambientales	Partial evidence	Albacete, SpainHQ checked Sep 5, 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 5, 2026
2	Tecnoambiente	Indirect evidence	Cerdanyola Del Vallès, SpainHQ checked Sep 5, 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 5, 2026
3	Zunibal	Indirect evidence	Derio, SpainHQ checked Sep 5, 2026	51-200	47 contacts →
	Indirect evidence “Founded in 1995 in Derio (Spain), Zunibal has established itself as a benchmark in the field of innovation and the development of advanced technological solutions dedicated to…” Source: RevenueBase Database · checked Sep 5, 2026
4	Ecos Group	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 5, 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 5, 2026
5	Siport21	Strong evidence	Las Rozas De Madrid, SpainHQ checked Sep 5, 2026	11-50	36 contacts →
	Strong evidence “Siport21 is a port engineering and maritime safety consulting company.” Source: RevenueBase Database · checked Sep 5, 2026
6	Altácia	Indirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	29 contacts →
	Indirect evidence “Somos un socio de confianza estratégico para nuestros clientes.” Source: RevenueBase Database · checked Sep 5, 2026
7	Extrepronatur SL	Indirect evidence	Badajoz, SpainHQ checked Sep 5, 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 5, 2026
8	Elittoral	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 5, 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 5, 2026
9	Zumain Ingenieros	Indirect evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	27 contacts →
	Indirect evidence “Zumain Ingenieros, inicia su andadura en el año 2002, con la intención de desarrollar su trabajo en el sector de los estudios y proyectos ambientales, con el objetivo de dar un…” Source: RevenueBase Database · checked Sep 5, 2026
10	Aister	Partial evidence	Moaña, SpainHQ checked Sep 5, 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 5, 2026
11	Consultoría DE Técnicas Ambientales	Partial evidence	Madrid, SpainHQ checked Sep 5, 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 5, 2026
12	Bluenewables	Indirect evidence	Tenerife, SpainHQ checked Sep 5, 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 5, 2026
13	Ocean Infrastructures Management	Partial evidence	Madrid, SpainHQ checked Sep 5, 2026	11-50	21 contacts →
	Partial evidence “Ocean Infrastructures Management is an international port consulting firm.” Source: RevenueBase Database · checked Sep 5, 2026
14	Gtsuniversal	Indirect evidence	Algeciras, SpainHQ checked Sep 5, 2026	201-500	18 contacts →
	Indirect evidence “Innovative, Safe, Operational 24/7, Efficient, Adaptable, High Technical Quality.” Source: RevenueBase Database · checked Sep 5, 2026
15	Merchant Union SL	Partial evidence	Vigo, SpainHQ checked Sep 5, 2026	11-50	11 contacts →
	Partial evidence “Merchant Union SL has more than 25 years of experience in the marine sector.” Source: RevenueBase Database · checked Sep 5, 2026
16	Gaiambiente	Indirect evidence	Madrid, SpainHQ checked Sep 5, 2026	1-10	9 contacts →
	Indirect evidence “GAIAMBIENTE es una consultora especializada en medio ambiente que brinda sus servicios tanto a organismos públicos como a empresas privadas.” Source: RevenueBase Database · checked Sep 5, 2026
17	Ekolur Asesoría Ambiental	Indirect evidence	Oiartzun, SpainHQ checked Sep 5, 2026	11-50	8 contacts →
	Indirect evidence “Empresa de consultoría y servicios especializada en el medio ambiente, referentes en biodiversidad, evaluación ambiental y planificación y gestión del agua./ Ingurumenean…” Source: RevenueBase Database · checked Sep 5, 2026
18	Neos Maritime Consulting	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 5, 2026	11-50	8 contacts →
	Indirect evidence “Una apuesta por la consultoría integral de ingeniería y construcción.” Source: RevenueBase Database · checked Sep 5, 2026
19	MAR Recruitment & Consulting	Indirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	7 contacts →
	Indirect evidence “Mar Recruitment surge de la necesidad de facilitar la relación entre las empresas marítimas y los profesionales del propio ámbito.” Source: RevenueBase Database · checked Sep 5, 2026
20	Marexi Marine Technology	Partial evidence	Vigo, SpainHQ checked Sep 5, 2026	11-50	6 contacts →
	Partial evidence “Marine Technology Ximo, Ltd.(Marexi) began its operation on March 17, 2005.It´s a dynamic company from Galicia that bases its activity on the constant research and development of…” Source: RevenueBase Database · checked Sep 5, 2026
21	Gestema SUR	Indirect evidence	Granada, SpainHQ checked Sep 5, 2026	1-10	5 contacts →
	Indirect evidence “Gestema Sur es una consultora especializada en el sector ambiental integrada por un equipo interdisciplinar de biólogos, ambientólogos, abogados, ingenieros y otros profesionales…” Source: RevenueBase Database · checked Sep 5, 2026
22	Head UP Services	Partial evidence	O Porriño, SpainHQ checked Sep 5, 2026	201-500	5 contacts →
	Partial evidence “HEAD UP SERVICES is a management consulting company based out of Barrio San Andrés Pontellas, 20 36412 Porriño comercial@headup.es -” Source: RevenueBase Database · checked Sep 5, 2026
23	Arda Gestió I Estudis Ambientals SL	Indirect evidence	Barcelona, SpainHQ checked Sep 5, 2026	1-10	5 contacts →
	Indirect evidence “ARDA Gestió i Estudis Ambientals fou creada l'any 1990 per un equip de professionals especialitzats en matèria de MEDI AMBIENT.” Source: RevenueBase Database · checked Sep 5, 2026
24	ARC Consultoría Medioambiental	Indirect evidence	Donostia / San Sebastián, SpainHQ checked Sep 5, 2026	1-10	4 contacts →
	Indirect evidence “En ARC prestamos servicios profesionales de consultoría y desarrollamos estudios y proyectos ambientales.” Source: RevenueBase Database · checked Sep 5, 2026
25	Ploatech	Strong evidence	Girona, SpainHQ checked Sep 5, 2026	1-10	4 contacts →
	Strong evidence “PLOATECH is a marine technology consulting company that provides advanced scientific and customized engineering services focusing in the underwater domain.We specialize in remote…” Source: RevenueBase Database · checked Sep 5, 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 resource 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 marine resource consulting firms.
Partial evidence: Its own public description names part of marine resource consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine resource 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 211 marine resource consulting firms based in Spain

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Marine resource consulting firms based in Spain at a glance

As of Sep 5, 2026

13.1%Verified-email coverage

1.2%Mobile-number coverage

7.4Average contacts per company

1-10Median size (employees)

11.4%Largest-city concentration · Madrid

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

140

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1900–30

1531–60

061–90

090–180

0180+

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 resource 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 “marine resource 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 marine resource 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 marine resource 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, 205 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 5, 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 marine resource 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 marine resource consulting firms are there based in Spain?

RevenueBase identified 211 marine resource 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?

Ideas Medioambientales, headquartered in Albacete, tops this list with the largest team on record.

Which city has the most marine resource consulting firms?

Madrid leads with 24 headquartered companies, followed by Barcelona (16) and Vigo (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 205 verified decision-maker contacts tracked across these 211 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 5, 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.