Company lists · Data refreshed September 2026

Top 25 Underwater inspection service providers based in the United Kingdom

Name: Underwater inspection service providers 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 350 companies tracked

RevenueBase identified 350 underwater inspection service providers headquartered in the United Kingdom as of September 2026 and tracks 5,189 professional contacts across them, including 1,921 with verified work emails. Aberdeen is the largest hub.

This list covers underwater inspection service providers 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

350Companies

5,189Contacts tracked

1,921Verified emails

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The 25 largest underwater inspection service providers based in the United Kingdom

Ranked by team size

Top 25 of 350 underwater inspection service providers 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 service providers: 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	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
2	XEIAD	Partial evidence	Ilkeston, United KingdomHQ checked Sep 22, 2026	201-500	146 contacts →
	Partial evidence “XEIAD specialise in the provision of qualified and experienced inspection engineers for difficult access inspection, reporting and assessment.” 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	Star International	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 22, 2026	51-200	103 contacts →
	Indirect evidence “Star International specialises in keeping vessels safe and compliant.” 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	ADC Energy LTD	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 22, 2026	11-50	62 contacts →
	Indirect evidence “ADC Energy Ltd.(formerly Aberdeen Drilling Consultants) is an international, family owned company with a worldwide reputation, gained by providing the highest standard of Rig…” Source: RevenueBase Database · checked Sep 22, 2026
8	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
9	NDT Group	Partial evidence	Deeside, United KingdomHQ checked Sep 22, 2026	11-50	48 contacts →
	Partial evidence “We protect people, assets and the environment in high-risk industries through precise, responsive and reporting-led inspection services that give our clients total confidence in…” Source: RevenueBase Database · checked Sep 22, 2026
10	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
11	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
12	Malakoff Limited	Indirect evidence	North Ness, United KingdomHQ checked Sep 22, 2026	51-200	46 contacts →
	Indirect evidence “A Shetland based marine engineering company with a long history and diverse range of services.” Source: RevenueBase Database · checked Sep 22, 2026
13	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
14	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
15	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
16	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
17	RAK Inspection Services	Partial evidence	Stockon-on-tees, United KingdomHQ checked Sep 22, 2026	51-200	33 contacts →
	Partial evidence “R&A Kay Inspection Services Ltd.(rak), based in the North East, is a leading inspection services company catering for the onshore oil & gas, petrochemical, industrial gasses…” Source: RevenueBase Database · checked Sep 22, 2026
18	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
19	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
20	Metalyte Pipeworks	Indirect evidence	Tamworth, United KingdomHQ checked Sep 22, 2026	51-200	30 contacts →
	Indirect evidence “The UK’s leader in pipeline, vessel & structural repair solutions for global offshore/onshore oil and gas operations.” Source: RevenueBase Database · checked Sep 22, 2026
21	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
22	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
23	A-2-Sea Solutions LTD	Indirect evidence	Romsey, United KingdomHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “A-2-Sea Solutions Ltd is a global telecommunications cable shore end and shallow water installation organisation.” Source: RevenueBase Database · checked Sep 22, 2026
24	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
25	Advanced Engineering Solutions Limited	Partial evidence	Cramlington, United KingdomHQ checked Sep 22, 2026	11-50	27 contacts →
	Partial evidence “Advanced Engineering Solutions Limited (AESL) is a specialist pipeline and pipeline equipment engineering business providing inspection, performance assessment and maintenance for…” 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 service providers. 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 service providers.
Partial evidence: Its own public description names part of underwater inspection service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater inspection service providers. 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 350 underwater inspection service providers based in the United Kingdom

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Underwater inspection service providers based in the United Kingdom at a glance

As of Sep 22, 2026

37.0%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

11.7%Largest-city concentration · Aberdeen

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

203

11-50

112

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 350 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 service providers, 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 service providers”. 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 service providers), 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 service providers, 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, 1,921 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 service providers by metro

Underwater inspection service providers in Aberdeen41
Underwater inspection service providers in London38

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 service providers, 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 service providers are there based in the United Kingdom?

RevenueBase identified 350 underwater inspection service providers 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?

Sonomatic Limited, headquartered in Aberdeen, tops this list with the largest team on record.

Which city has the most underwater inspection service providers?

Aberdeen leads with 41 headquartered companies, followed by London (38) and Glasgow (6).

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 1,921 verified decision-maker contacts tracked across these 350 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.