Company lists · Data refreshed September 2026

Top 25 Seabed mining contractors based in the United Kingdom

Name: Seabed mining contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 115 companies tracked

RevenueBase identified 115 company matches for seabed mining contractors associated with the United Kingdom as of September 2026 and tracks 3,425 professional contacts across them, including 1,189 with verified work emails. Aberdeen is the largest hub.

This list covers company matches for seabed mining contractors 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 September 17, 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 Sep 17, 2026 How this list was built

115Companies

3,425Contacts tracked

1,189Verified emails

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The 25 largest seabed mining contractors based in the United Kingdom

Ranked by team size

Top 25 of 115 company matches for seabed mining contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Gardline Limited	Exact match	Great Yarmouth, United KingdomHQ recorded Sep 17, 2026	501-1,000	545 contacts →
	Exact match “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	UTEC	Exact match	Aberdeen, United KingdomHQ recorded Sep 17, 2026	201-500	490 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 · Sep 17, 2026 · View company records in RevenueBase
3	Boskalis Westminster LTD	Exact match	Fareham, United KingdomHQ recorded Sep 17, 2026	51-200	363 contacts →
	Exact match “Boskalis Westminster Ltd (BWL) is the leading dredging contractor in the UK and Ireland.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Sulmara	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	201-500	241 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 · Sep 17, 2026 · View company records in RevenueBase
5	Enshore Subsea	Exact match	Blyth, United KingdomHQ recorded Sep 17, 2026	51-200	161 contacts →
	Exact match “The globally trusted delivery experts in installing and protecting critical subsea infrastructure.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Shearwater Marine Services	Exact match	Sandbank, United KingdomHQ recorded Sep 17, 2026	51-200	87 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 · Sep 17, 2026 · View company records in RevenueBase
7	Foundocean	Exact match	Livingston, United KingdomHQ recorded Sep 17, 2026	51-200	85 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 · Sep 17, 2026 · View company records in RevenueBase
8	Abpmer	Exact match	Southampton, United KingdomHQ recorded Sep 17, 2026	51-200	69 contacts →
	Exact match “ABPmer is a leading UK marine consultancy, creating sustainable solutions for clients in the marine environment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	TMS LTD	Exact match	Devon, United KingdomHQ recorded Sep 17, 2026	51-200	65 contacts →
	Exact match “TMS Ltd have in excess of 31 years of expertise as a marine contractor within the Civil Engineering sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Benthic Solutions Limited	Exact match	Hoveton, United KingdomHQ recorded Sep 17, 2026	11-50	49 contacts →
	Exact match “Benthic Solutions Limited (BSL) is an independent marine environmental consultancy and survey company offering a broad range of capabilities in survey, analytical, interpretative…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Edwards Diving Services LTD	Exact match	Pontypridd, United KingdomHQ recorded Sep 17, 2026	51-200	46 contacts →
	Exact match “EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	GPS Marine Contractors LTD	Exact match	Rochester, United KingdomHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Keynvor Morlift LTD	Exact match	Falmouth, United KingdomHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “Keynvor Morlift Ltd is a UK-based marine contracting and consulting firm.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Ovenden Earthmoving Company LTD	Exact match	Canterbury, United KingdomHQ recorded Sep 17, 2026	51-200	37 contacts →
	Exact match “Specialist Contractors For Earthmoving, Crushing & Recycling, Sea & Coastal Defences” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Leask Marine LTD	Exact match	Kirkwall, United KingdomHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “Leask Marine provide an unprecedented range of uniquely developed processes and equipment to support the mobilisation, deployment, installation, commissioning, service and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	EEL	Exact match	Beccles, United KingdomHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “We specialise in the hire and operation of marine seismic and geophysical systems, marine geotechnical systems, and compressors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Aratellus	Exact match	Aberdeenshire, United KingdomHQ recorded Sep 17, 2026	11-50	28 contacts →
	Exact match “Aratellus was founded in 2020 to deliver the world’s most advanced seabed investigation and intervention solutions for offshore energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Sand Geophysics Limited	Exact match	Hamble-le-rice, United KingdomHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “SAND Geophysics Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Dsmc.Uk Diving, Survey And Marine Contracting	Exact match	Linton, United KingdomHQ recorded Sep 17, 2026	11-50	20 contacts →
	Exact match “Diving, Survey and Marine Contracting (DSMC).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Inosys	Exact match	Bath, United KingdomHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “We help all businesses in the offshore energy sector understand the seabed, navigate its challenges, and develop clear and cost-effective solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Jenkins Marine LTD	Exact match	Poole, United KingdomHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “Jenkins Marine are Specialised Workboats, Barge and Dredging Contractors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Modus Limited	Exact match	Darlington, United KingdomHQ recorded Sep 17, 2026	201-500	17 contacts →
	Exact match “Modus is now Manta.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Herbosch-Kiere Marine Contractors LTD	Exact match	Chiswick, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Herbosch Kiere Marine Contractors Ltd is the UK subsidiary of Herbosch-Kiere NV, a leading European marine engineering company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Constructex	Exact match	Fareham, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Constructex is a specialist maritime contractor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Falmouth Divers LTD	Exact match	Penryn, United KingdomHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match “Since forming in 1978 Falmouth Divers has become one of Europe's leading multi-discipline diving, subsea and marine civil engineering contractors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “seabed mining contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 115 seabed mining contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,189 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Seabed mining contractors based in the United Kingdom at a glance

As of Sep 17, 2026

34.7%Verified-email coverage

29.8Average contacts per company

11-50Median size (employees)

4.3%Largest-city concentration · Aberdeen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 115 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 “seabed mining contractors” 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 1,189 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 September 17, 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 “seabed mining contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many seabed mining contractors are there based in the United Kingdom?

RevenueBase identified 115 company matches for seabed mining contractors associated with the United Kingdom as of September 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?

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

Which city has the most seabed mining contractors?

Aberdeen leads with 5 company records, followed by London (4) and Bath (3).

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 1,189 professional contacts with verified work emails tracked across these 115 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 September 17, 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.