Company lists · Data refreshed September 2026

Top 25 Underwater inspection companies based in the United Kingdom

Name: Underwater inspection companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 267 companies tracked

RevenueBase identified 267 underwater inspection companies headquartered in the United Kingdom as of September 2026 and tracks 5,337 professional contacts across them, including 2,057 with verified work emails. Aberdeen is the largest hub.

This list covers underwater inspection companies headquartered in the United Kingdom, 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 22, 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 22, 2026 86% judged on-target in blind review

267Companies

5,337Contacts tracked

2,057Verified emails

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The 25 largest underwater inspection companies based in the United Kingdom

Ranked by team size

Top 25 of 267 underwater inspection companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to underwater inspection companies: 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	Boskalis Subsea Services	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	201-500	516 contacts →
	Indirect evidence “Boskalis Subsea Services is a world-leading provider of specialist subsea solutions for the offshore energy industry, seamlessly integrating services to deliver optimum results.” Source: RevenueBase Database · checked Sep 22, 2026
2	Sonomatic Limited	Partial evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	201-500	207 contacts →
	Partial evidence “Sonomatic is a worldwide organisation that specialises in the design, development, and application of Non-Destructive Testing (NDT) inspections.” Source: RevenueBase Database · checked Sep 22, 2026
3	Aquaterra Group LTD	Indirect evidence	Kintore, United KingdomHQ checked Sep 22, 2026	11-50	123 contacts →
	Indirect evidence “RELIABLE \| RESOURCEFUL \| READY We continually raise the bar by challenging ourselves and our clients to enable safe and efficient performance.” Source: RevenueBase Database · checked Sep 22, 2026
4	James Fisher Offshore	Indirect evidence	Oldmeldrum, United KingdomHQ checked Sep 22, 2026	51-200	107 contacts →
	Indirect evidence “James Fisher Offshore (JFO) is an international supplier of marine back deck, specialist subsea equipment and engineering services supporting the global subsea contractors across…” Source: RevenueBase Database · checked Sep 22, 2026
5	Shearwater Marine Services	Indirect evidence	Sandbank, United KingdomHQ checked Sep 22, 2026	51-200	87 contacts →
	Indirect evidence “Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Source: RevenueBase Database · checked Sep 22, 2026
6	Film-Ocean	Indirect evidence	Ellon, United KingdomHQ checked Sep 22, 2026	51-200	68 contacts →
	Indirect evidence “Film-Ocean provides innovative subsea solutions to the global offshore energy industry.” Source: RevenueBase Database · checked Sep 22, 2026
7	IDWAL	Partial evidence	Cardiff, United KingdomHQ checked Sep 22, 2026	501-1,000	57 contacts →
	Partial evidence “IDWAL is the ship inspection, technology and data business.” Source: RevenueBase Database · checked Sep 22, 2026
8	KD Marine LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	48 contacts →
	Partial evidence “KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.” Source: RevenueBase Database · checked Sep 22, 2026
9	Edwards Diving Services LTD	Indirect evidence	Pontypridd, United KingdomHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Source: RevenueBase Database · checked Sep 22, 2026
10	GPS Marine Contractors LTD	Indirect evidence	Rochester, United KingdomHQ checked Sep 22, 2026	51-200	44 contacts →
	Indirect evidence “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Source: RevenueBase Database · checked Sep 22, 2026
11	Marine Technical Limits LTD	Indirect evidence	Kintore, United KingdomHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “Marine Technical Limits was established in order to provide support to FPSOs worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
12	Deepsea Technologies	Indirect evidence	Bromborough, United KingdomHQ checked Sep 22, 2026	11-50	39 contacts →
	Indirect evidence “With a production and manufacturing facility in Bromborough, Wirral and an engineering office based in Knaphill, Surrey, Deepsea Technologies UK Ltd provides both diver-less and…” Source: RevenueBase Database · checked Sep 22, 2026
13	RIG Surveys Group	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “We are a dynamic team with over 20 years experience servicing the Mobile Offshore Drilling Unit market around the World.” Source: RevenueBase Database · checked Sep 22, 2026
14	AISUS	Partial evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “AISUS provides advanced remote inspection solutions to address critical challenges in topsides, substructure, and subsea infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
15	VAN Ameyde Marine UK	Indirect evidence	Hull, United KingdomHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “McAuslands began as McAusland Turner, a UK marine surveying and consulting firm, back in The company is the oldest Marine Surveying and Consulting firm in continuous operation in…” Source: RevenueBase Database · checked Sep 22, 2026
16	Leask Marine LTD	Indirect evidence	Kirkwall, United KingdomHQ checked Sep 22, 2026	11-50	32 contacts →
	Indirect evidence “Leask Marine provide an unprecedented range of uniquely developed processes and equipment to support the mobilisation, deployment, installation, commissioning, service and…” Source: RevenueBase Database · checked Sep 22, 2026
17	Utility ROV Services LTD	Indirect evidence	Glenrothes, United KingdomHQ checked Sep 22, 2026	11-50	30 contacts →
	Indirect evidence “Utility ROV is a Subsea Operations Business offering innovative and practical specialist ROV services.” Source: RevenueBase Database · checked Sep 22, 2026
18	Braemar Technical Services Marine	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	30 contacts →
	Indirect evidence “AqualisBraemar’s Technical Division provides independent technical expertise and analysis to the marine, energy and insurance sectors on a global basis.” Source: RevenueBase Database · checked Sep 22, 2026
19	Paint Inspection LTD	Partial evidence	Fareham, United KingdomHQ checked Sep 22, 2026	11-50	30 contacts →
	Partial evidence “IMPROVING QUALITY REDUCING COSTS Paint Inspection Ltd are a Coating Inspection and Surveying Company that provides a rapid, first class service to clients by providing highly…” Source: RevenueBase Database · checked Sep 22, 2026
20	AMS Global Group	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “We are an independent company, owned and operated by directors with extensive experience in the marine industry.” Source: RevenueBase Database · checked Sep 22, 2026
21	Aalmar Surveys Group	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	23 contacts →
	Indirect evidence “At Aalmar Surveys and our sister company Times Marine Survey, we’re proud to be a trusted name in independent ship surveying, with a legacy of excellence spanning over 48 years.” Source: RevenueBase Database · checked Sep 22, 2026
22	Rocksalt Subsea LTD	Indirect evidence	Insch, United KingdomHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “RockSalt Subsea Ltd are Commercial Diving & Remotely Operated Vehicle (ROV) specialists, delivering engineering support and Technical Authority services to the offshore energy and…” Source: RevenueBase Database · checked Sep 22, 2026
23	Atlantas Marine Limited	Indirect evidence	Yeovil, United KingdomHQ checked Sep 22, 2026	11-50	21 contacts →
	Indirect evidence “Established in Atlantas Marine are the UK’s only authorised sales and service distributor for both VideoRay and Ocean Modules remotely operated vehicles (ROVs).” Source: RevenueBase Database · checked Sep 22, 2026
24	Namaka Subsea	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “Namaka Subsea is an established global subject matter expert who specialise in Diving and ROV operations, offering innovative solutions to ensure Client requirements and…” Source: RevenueBase Database · checked Sep 22, 2026
25	Dsmc.Uk Diving, Survey And Marine Contracting	Indirect evidence	Linton, United KingdomHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “Diving, Survey and Marine Contracting (DSMC).” Source: RevenueBase Database · checked Sep 22, 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: underwater inspection companies. 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 underwater inspection companies.
Partial evidence: Its own public description names part of underwater inspection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater inspection companies. 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 267 underwater inspection companies based in the United Kingdom

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Underwater inspection companies based in the United Kingdom at a glance

As of Sep 22, 2026

38.5%Verified-email coverage

20.0Average contacts per company

1-10Median size (employees)

13.1%Largest-city concentration · Aberdeen

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

154

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 267 companies.

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 underwater inspection companies, 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 the United Kingdom whose own description of what they do matches “underwater inspection companies”. 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 underwater inspection companies), 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 underwater inspection companies, and records with no verified work email. Companies headquartered outside United Kingdom 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, 2,057 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 22, 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.

Underwater inspection companies by metro

Underwater inspection companies in Aberdeen35

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 underwater inspection companies, 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 underwater inspection companies are there based in the United Kingdom?

RevenueBase identified 267 underwater inspection companies headquartered in the United Kingdom 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?

Boskalis Subsea Services, headquartered in Aberdeen, tops this list with the largest team on record.

Which city has the most underwater inspection companies?

Aberdeen leads with 35 headquartered companies, followed by London (15) and Glasgow (5).

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 2,057 verified decision-maker contacts tracked across these 267 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 22, 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.