Company lists · Data refreshed October 2026

Top 15 Deep ocean engineering services based in Ireland

RevenueBase identified 29 company matches for deep ocean engineering services associated with Ireland as of October 2026 and tracks 431 professional contacts across them, including 211 with verified work emails. Cork is the largest hub.

This list covers company matches for deep ocean engineering services associated with Ireland, 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 October 24, 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 Oct 24, 2026 How this list was built
29Companies
431Contacts tracked
211Verified emails
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The 15 largest deep ocean engineering services based in Ireland

Ranked by team size
Top 15 of 29 company matches for deep ocean engineering services based in Ireland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 24, 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 matchRathcor, IrelandHQ recorded Oct 24, 202651-200219 contacts →

Exact match

“Using Uncrewed Surface Vessels (USVs), XOCEAN provides turnkey ocean data.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
2Exact matchCork, IrelandHQ recorded Oct 24, 202651-20045 contacts →

Exact match

“We are committed to helping clients unlock the benefits of cutting-edge geo-data in support of the development of offshore energy.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
3Exact matchNaas, IrelandHQ recorded Oct 24, 202651-20028 contacts →

Exact match

“Cathx Ocean is a subsea technology company specialising in the development of advanced lighting, imaging, and machine vision tools for subsea imaging, measurement, survey…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
4Exact matchFerns, IrelandHQ recorded Oct 24, 202611-5017 contacts →

Exact match

“Global Subsea Engineering Irish Sea Contractors is an innovative and dynamic organisation, specialising in subsea engineering.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
5Exact matchGalway, IrelandHQ recorded Oct 24, 2026n/a14 contacts →

Exact match

“Wood's highly experienced development team have been developing software solutions for design of offshore structures for over 30 years.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
6Exact matchDún Laoghaire, IrelandHQ recorded Oct 24, 202611-5013 contacts →

Exact match

“TechWorks Marine is an international leader in the provision of Robust, Reliable, and Secure Marine Data for over 20 years.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
7Exact matchArklow, IrelandHQ recorded Oct 24, 202611-5013 contacts →

Exact match

“Ondine is an Irish company dedicated to servicing the marine and aerial survey needs of the Offshore Renewable Energy Sector.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
8Exact matchWicklow Town, IrelandHQ recorded Oct 24, 20261-1011 contacts →

Exact match

“Based on the east coast of Ireland, Alpha Marine (formerly Island Shipping) is a multi-disciplinary marine organisation supplying a variety of construction, engineering, offshore…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
9Exact matchKillarney, IrelandHQ recorded Oct 24, 20261-109 contacts →

Exact match

“GreenC Marine provides solutions to marine construction challenges with our experienced team and in house owned and operated marine plant and equipment.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
10Exact matchCork, IrelandHQ recorded Oct 24, 20261-107 contacts →

Exact match

“Hydrographic Geophysical Environmental Solutions”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
11Exact matchDundalk, IrelandHQ recorded Oct 24, 20261-106 contacts →

Exact match

“Over 30 years expertise in the marine and commercial diving industry.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
12Exact matchClaremorris, IrelandHQ recorded Oct 24, 20261-104 contacts →

Exact match

“Cara Offshore was founded in 2022 to offer specialist marine consultancy services, with a focus on offshore and nearshore activities in the ORE sector”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
13Exact matchCork, IrelandHQ recorded Oct 24, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
14Exact matchKinvara, IrelandHQ recorded Oct 24, 20261-101 contacts →

Exact match

“Rockall provides a wide range of services to the Marine Renewable Energy sector.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
15Exact matchGalway, IrelandHQ recorded Oct 24, 20261-101 contacts →

Exact match

“We are specialists in Offshore and Marine operations.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase

Showing 15 of 29 deep ocean engineering services based in Ireland

See the full list, filter by size, metro and specialty, and access 211 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Deep ocean engineering services based in Ireland at a glance

As of Oct 24, 2026
49.0%Verified-email coverage
14.9Average contacts per company
1-10Median size (employees)
27.6%Largest-city concentration · Cork
Oct 24, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
7
51-200
4
10001+
1

Email recency for this list is measured worldwide rather than for Ireland, so it is reported there. Company counts and contact totals on this page are exact for Ireland, over 29 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 Ireland whose business descriptions match “deep ocean engineering services” 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 211 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 October 24, 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 “deep ocean engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many deep ocean engineering services are there based in Ireland?

RevenueBase identified 29 company matches for deep ocean engineering services associated with Ireland as of October 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?

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

Which city has the most deep ocean engineering services?

Cork leads with 8 company records, followed by Galway (3) and Mountcharles (2).

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 211 professional contacts with verified work emails tracked across these 29 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 October 24, 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.