Company lists · Data refreshed October 2026

Top 25 Deep ocean engineering services based in the United Kingdom

RevenueBase identified 710 company matches for deep ocean engineering services associated with the United Kingdom as of October 2026 and tracks 19,880 professional contacts across them, including 6,199 with verified work emails. Aberdeen is the largest hub.

This list covers company matches for deep ocean engineering services associated with the United Kingdom, 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
710Companies
19,880Contacts tracked
6,199Verified emails
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The 25 largest deep ocean engineering services based in the United Kingdom

Ranked by team size
Top 25 of 710 company matches for deep ocean engineering services based in the United Kingdom, 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 matchLondon, United KingdomHQ recorded Oct 24, 2026501-1,000753 contacts →

Exact match

“Ocean Infinity is a technology-driven company transforming how ocean operations are carried out.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
2Exact matchGreat Yarmouth, United KingdomHQ recorded Oct 24, 2026501-1,000565 contacts →

Exact match

“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
3Exact matchAberdeen, United KingdomHQ recorded Oct 24, 2026201-500558 contacts →

Exact match

“Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
4Exact matchAberdeen, United KingdomHQ recorded Oct 24, 2026201-500550 contacts →

Exact match

“UTEC, Acteon’s Geo-services business line, harnesses data to optimise designs, save time and maximise your project’s economic value by providing a holistic understanding of the…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
5Exact matchBarrow-in-furness, United KingdomHQ recorded Oct 24, 20261,001-5,000432 contacts →

Exact match

“Above, below and beyond the world’s oceans.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
6Exact matchBurntisland, United KingdomHQ recorded Oct 24, 2026501-1,000420 contacts →

Exact match

“Briggs Marine is a leading provider of marine and environmental services, specialising in port and marine operations, subsea and environmental support and vessel charter.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
7Exact matchFareham, United KingdomHQ recorded Oct 24, 202651-200390 contacts →

Exact match

“Boskalis Westminster Ltd (BWL) is the leading dredging contractor in the UK and Ireland.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
8Exact matchWesthill, United KingdomHQ recorded Oct 24, 2026501-1,000384 contacts →

Exact match

“Established in 1985, Ashtead Technology has grown organically and through strategic acquisition to become the leading provider of equipment rental solutions, advanced underwater…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
9Exact matchChelmsford, United KingdomHQ recorded Oct 24, 2026501-1,000360 contacts →

Exact match

“Global Marine is part of the Global Marine Group, and is a market leader in subsea cable installation and maintenance solutions to the telecoms and oil & gas sectors.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
10Exact matchWallsend, United KingdomHQ recorded Oct 24, 202651-200327 contacts →

Exact match

“SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
11Exact matchWoking, United KingdomHQ recorded Oct 24, 2026201-500299 contacts →

Exact match

“2H Offshore delivers leading-edge advanced systems engineering for all types of offshore structures in the oil and gas and renewable energy sectors.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
12Exact matchYateley, United KingdomHQ recorded Oct 24, 2026201-500297 contacts →

Exact match

“Underwater innovations for energy, defence and science.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
13Exact matchGlasgow, United KingdomHQ recorded Oct 24, 2026201-500222 contacts →

Exact match

“Sulmara is a global seabed intelligence company, capturing and interpreting high-quality subsea data to enable smarter offshore decisions.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
14Exact matchNorthumberland, United KingdomHQ recorded Oct 24, 2026201-500191 contacts →

Exact match

“Osbit’s vision is to unlock a clean energy future by creating smarter technology.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 24, 202651-200188 contacts →

Exact match

“The Engineering Consultants.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
16Exact matchBlyth, United KingdomHQ recorded Oct 24, 202651-200180 contacts →

Exact match

“The globally trusted delivery experts in installing and protecting critical subsea infrastructure.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
17Exact matchGlasgow, United KingdomHQ recorded Oct 24, 2026201-500167 contacts →

Exact match

“SeaTec provides a comprehensive range of services and products to meet the needs of the shipping, offshore and defence industries.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
18Exact matchNorwich, United KingdomHQ recorded Oct 24, 202651-200160 contacts →

Exact match

“Aquaterra Energy provides intelligently engineered products and services for well access and offshore developments - supporting efficient operations across the full life cycle of…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
19Exact matchAberdeen, United KingdomHQ recorded Oct 24, 202651-200144 contacts →

Exact match

“MDL - We Build Innovation.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Oct 24, 202651-200108 contacts →

Exact match

“CTS Offshore & Marine Ltd is an independent provider of engineering services tailored for energy and material markets.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
21Exact matchAberdeen, United KingdomHQ recorded Oct 24, 202651-20092 contacts →

Exact match

“Andrews Survey is predominantly active in construction and trenching support, ROV pipeline inspection support, renewable energy and wind-farm installation support and rig…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
22Exact matchSandbank, United KingdomHQ recorded Oct 24, 202651-20089 contacts →

Exact match

“Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
23Exact matchPlymouth, United KingdomHQ recorded Oct 24, 202651-20089 contacts →

Exact match

“Established over 30 years ago, Relay was incorporated in 1989 as Relay South-West, later changing its name to Relay Engineering in January 2007.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
24Exact matchLivingston, United KingdomHQ recorded Oct 24, 202651-20088 contacts →

Exact match

“FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 24, 202651-20082 contacts →

Exact match

“Waves Group combines the expertise of Cwaves and Mwaves as leading, independent marine consultants to the shipping and offshore energy industries.”

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

Showing 25 of 710 deep ocean engineering services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 6,199 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Deep ocean engineering services based in the United Kingdom at a glance

As of Oct 24, 2026
31.2%Verified-email coverage
28.0Average contacts per company
1-10Median size (employees)
12.8%Largest-city concentration · Aberdeen
Oct 24, 2026Page data refreshed

Companies by employee count

1-10
370
11-50
219
51-200
71
201-500
25
501-1,000
12
1,001-5,000
9

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 710 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 the United Kingdom 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 6,199 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 the United Kingdom?

RevenueBase identified 710 company matches for deep ocean engineering services associated with the United Kingdom 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?

Ocean Infinity 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?

Aberdeen leads with 91 company records, followed by London (64) and Glasgow (15).

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 6,199 professional contacts with verified work emails tracked across these 710 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.