Company lists · Data refreshed November 2026

Top 25 Underwater maintenance service providers based in Spain

RevenueBase identified 136 company matches for underwater maintenance service providers associated with Spain as of November 2026 and tracks 1,114 professional contacts across them, including 89 with verified work emails. Barcelona is the largest hub.

This list covers company matches for underwater maintenance service providers associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
136Companies
1,114Contacts tracked
89Verified emails
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The 25 largest underwater maintenance service providers based in Spain

Ranked by team size
Top 25 of 136 company matches for underwater maintenance service providers based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNaron, SpainHQ recorded Nov 6, 2026501-1,000107 contacts →

Exact match

“Empresa dedicada al mantenimiento Naval desde hace 40 años, especialista en, preparacion de superficies y pintado de buques, tratamiento de casco y TANKCOATING.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchTarragona, SpainHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Spanish offshore diving company since 1976, located in Tarragona, with experience in North and West Africa, Atlantic area, Mediterranean Area, Caspian sea, Persian Gulf, etc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLos Barrios, SpainHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Blay Marine Tech SL offers technical marine services and ship repairs as well as auxiliary services for the maritime industry in Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMazagón, SpainHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“AMADESAM S.L is a maritime service company based out of Mazagón-Huelva, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPuerto Vilanova I La Geltrú, SpainHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Sym Naval is a company of naval technical services, naval consultancy and own shipyard for the construction, conversion, maintenance and repair of ships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCádiz, SpainHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Naval Sector - Ship berths and moorings- Crane Service- Assembly and disassembly of scaffolding (Layher system)- Ship cleaning- Maneuvers of large tonnage parts (change of axles…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMontcada I Reixac, SpainHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Confined, Hyperbaric and Rope Access Work Solutions CONFHYDRA SOLUTIONS S.L, ofrece servicios de construcción, reparación, mantenimiento y conservación de estructuras en zonas o…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPalma De Mallorca, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Heavy Seas offers a comprehensive service for the marine sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAlgeciras, SpainHQ recorded Nov 6, 2026201-50012 contacts →

Exact match

“Innovative, Safe, Operational 24/7, Efficient, Adaptable, High Technical Quality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSanta Cruz De Tenerife, SpainHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“At Hidramar International we help to avoid downtimes to our clients providing cost-effective and safe high-quality assets maintenance in the Atlantic Ocean while they keep…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchTelde, SpainHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Acosta Ingeniería Marítima S.L.U.(Bluematt) se define como una empresa joven e innovadora que combina servicios subacuáticos y de buceo industrial, con servicios de ingeniería y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“Amarre y desamarre de buques en el puerto de Barcelona, y otros servicios técnico-náuticos como balizamientos, remolques, traslados de tripulación, entrega de provisiones y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchColmenar, SpainHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Founded: 2007 • Headquarters: Málaga, Spain • Industry: Underwater engineering and robotics • Business lines: 1.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLa Coruña, SpainHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Somos una compañía española fundada hace más de un siglo expertos en la prestación de servicios de la industria marítima y portuaria Ofrecemos soluciones integrales a todo tipo de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAndratx, SpainHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Tot Nautic es una empresa de mantenimiento de embarcaciones con base en Mallorca, operando en el sector náutico desde 1978.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLos Barrios, SpainHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Global Underwater Services SL is a professional commercial local diving company with more than 25 years of experience providing underwater maintenance services and repairs with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHuelva, SpainHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Large background offering all kind of technical assistance to shipyards, shipowners, ship agents, insurance companies, marine contractors, etc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLas Palmas De Gran Canaria, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“IDAMAR ATLANTIC was born as a ship supply company in Las Palmas de Gran Canaria, due to the great experience that its founder Dionisio Ávila has accumulated and transmitted since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLos Barrios, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“CROSSCOMAR is an internationally managed company situated in Algeciras, SPAIN.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAlgeciras, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Reparaciones Maritimas Españolas SA In 1989 a group of professional engineers from the merchant marine got together with the philosophy: Total quality in the job.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-505 contacts →

Exact match

“UNISERVICE 98 SL is a facilities services company based out of PS JOAN DE BORBO,144-146, LOCALES, BARCELONA, Spain.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGirona, SpainHQ recorded Nov 6, 20261-105 contacts →

Exact match

“PLOATECH is a marine technology consulting company that provides advanced scientific and customized engineering services focusing in the underwater domain.We specialize in remote…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTelde, SpainHQ recorded Nov 6, 202611-504 contacts →

Exact match

“PIELAGO INGENIERIA Y MEDIOAMBIENTE SL Es una empresa dedicada a los trabajos submarinos en general con un equipo multidisciplinar, formado por ingenieros de Obras Públicas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLas Palmas De Gran Canaria, SpainHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Hull Cleaning & Repairs offers a wide range of underwater services in key locations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPontevedra, SpainHQ recorded Nov 6, 20261-103 contacts →

Exact match

“We offer new ROVS, refurbished ROVS and Pipeline Inspection Service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 136 underwater maintenance service providers based in Spain

See the full list, filter by size, metro and specialty, and access 89 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underwater maintenance service providers based in Spain at a glance

As of Nov 6, 2026
8.0%Verified-email coverage
8.2Average contacts per company
11-50Median size (employees)
7.4%Largest-city concentration · Barcelona
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
59
11-50
55
51-200
16
201-500
1
501-1,000
2

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 136 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “underwater maintenance service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 89 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “underwater maintenance service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underwater maintenance service providers are there based in Spain?

RevenueBase identified 136 company matches for underwater maintenance service providers associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Indasa tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most underwater maintenance service providers?

Barcelona leads with 10 company records, followed by Algeciras (9) and Madrid (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 89 professional contacts with verified work emails tracked across these 136 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.