Company lists · Data refreshed September 2026

Top 25 Underwater robotics companies based in the United Kingdom

Name: Underwater robotics 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 19, 2026 117 companies tracked

RevenueBase identified 117 underwater robotics companies headquartered in the United Kingdom as of September 2026 and tracks 2,464 professional contacts across them, including 1,087 with verified work emails. Aberdeen is the largest hub.

This list covers underwater robotics 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 19, 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 19, 2026 86% judged on-target in blind review

117Companies

2,464Contacts tracked

1,087Verified emails

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The 25 largest underwater robotics companies based in the United Kingdom

Ranked by team size

Top 25 of 117 underwater robotics companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to underwater robotics 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	Ocean Infinity	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	714 contacts →
	Indirect evidence “Ocean Infinity is a technology-driven company transforming how ocean operations are carried out.” Source: RevenueBase Database · checked Sep 19, 2026
2	SMD	Indirect evidence	Wallsend, United KingdomHQ checked Sep 19, 2026	51-200	292 contacts →
	Indirect evidence “SMD is an advanced global designer and manufacturer of subsea remotely operated and autonomous power and control solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Sonardyne International LTD	Partial evidence	Yateley, United KingdomHQ checked Sep 19, 2026	201-500	273 contacts →
	Partial evidence “Underwater innovations for energy, defence and science.” Source: RevenueBase Database · checked Sep 19, 2026
4	KD Marine LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 19, 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 19, 2026
5	Edwards Diving Services LTD	Indirect evidence	Pontypridd, United KingdomHQ checked Sep 19, 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 19, 2026
6	Msubs LTD	Indirect evidence	Plymouth, United KingdomHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “An independent company specialising in the provision of Manned and Unmanned Submarines / Vehicles for defence, research, commercial survey and for fun.” Source: RevenueBase Database · checked Sep 19, 2026
7	Coda Octopus Products	Partial evidence	Edinburgh, United KingdomHQ checked Sep 19, 2026	51-200	41 contacts →
	Partial evidence “Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Source: RevenueBase Database · checked Sep 19, 2026
8	Forcys	Partial evidence	Yateley, United KingdomHQ checked Sep 19, 2026	11-50	36 contacts →
	Partial evidence “We solve the defence challenges of today and tomorrow, enabling navies to dominate the underwater battlespace through next generation situational awareness technology.” Source: RevenueBase Database · checked Sep 19, 2026
9	Acua Ocean	Indirect evidence	Plymouth, United KingdomHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “ACUA Ocean designs and develops uncrewed surface vessels (USV) for ocean monitoring and data collection, providing a stable open ocean platform to deploy autonomous and remotely…” Source: RevenueBase Database · checked Sep 19, 2026
10	Csignum	Indirect evidence	Bathgate, United KingdomHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
11	Centurion Subsea Services	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect evidence “Centurion Subsea Services delivers ground-breaking solutions to your toughest subsea challenges, providing cutting-edge shallow water ROV technology, innovative design…” Source: RevenueBase Database · checked Sep 19, 2026
12	Utility ROV Services LTD	Indirect evidence	Glenrothes, United KingdomHQ checked Sep 19, 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 19, 2026
13	Rocksalt Subsea LTD	Indirect evidence	Insch, United KingdomHQ checked Sep 19, 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 19, 2026
14	Geoacoustics LTD	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Excellence in Sound.” Source: RevenueBase Database · checked Sep 19, 2026
15	Namaka Subsea	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 19, 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 19, 2026
16	Otaq Connectors	Indirect evidence	Lancaster, United KingdomHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “OTAQ is a manufacturer of hi-tech products and solutions for the offshore energy, oceanographic and diving industries.” Source: RevenueBase Database · checked Sep 19, 2026
17	Blueprint Subsea	Partial evidence	Low Wood, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Driven by innovation, Blueprint Subsea's leading range of compact, robust, intuitive and affordable underwater acoustic products have been meeting the rigorous demands of the…” Source: RevenueBase Database · checked Sep 19, 2026
18	Modus Limited	Indirect evidence	Darlington, United KingdomHQ checked Sep 19, 2026	201-500	17 contacts →
	Indirect evidence “Modus is now Manta.” Source: RevenueBase Database · checked Sep 19, 2026
19	Honuworx	Indirect evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “HonuWorx builds persistent autonomous subsea systems for critical infrastructure, energy and defence.” Source: RevenueBase Database · checked Sep 19, 2026
20	Underwater Diving Services LTD	Indirect evidence	Barrow-in-furness, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Diving & Marine civil engineering contractor” Source: RevenueBase Database · checked Sep 19, 2026
21	C-Tecnics LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “C-Tecnics has specialised in the design and development of underwater imaging and video recording systems for over 20 years.” Source: RevenueBase Database · checked Sep 19, 2026
22	Tool TEC	Indirect evidence	Inverurie, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Tool Tec is an award winning global supplier to the offshore oil and gas industry providing in-house design, development and manufacture of standard and customised remote…” Source: RevenueBase Database · checked Sep 19, 2026
23	Hydrosurv	Indirect evidence	Exeter, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “We revolutionise ocean data collection with a fleet of battery-electric and battery-hybrid Uncrewed Surface Vessels (USVs), cutting carbon intensity by ~97%.” Source: RevenueBase Database · checked Sep 19, 2026
24	Oceantools LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “OceanTools is a world leading subsea engineering company specialising in the design and manufacture of equipment for the professional offshore and underwater markets.” Source: RevenueBase Database · checked Sep 19, 2026
25	Seagen	Indirect evidence	Paignton, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Our technology network is built to observe and assess water spaces to understand issues, highlight opportunities and establish baseline data.” Source: RevenueBase Database · checked Sep 19, 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 robotics 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 robotics companies.
Partial evidence: Its own public description names part of underwater robotics companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater robotics 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 117 underwater robotics companies based in the United Kingdom

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Underwater robotics companies based in the United Kingdom at a glance

As of Sep 19, 2026

44.1%Verified-email coverage

21.1Average contacts per company

1-10Median size (employees)

16.2%Largest-city concentration · Aberdeen

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 117 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 robotics 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 robotics 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 robotics 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 robotics 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, 1,087 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 19, 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.

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 robotics 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 robotics companies are there based in the United Kingdom?

RevenueBase identified 117 underwater robotics 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?

Ocean Infinity, headquartered in London, tops this list with the largest team on record.

Which city has the most underwater robotics companies?

Aberdeen leads with 19 headquartered companies, followed by London (11) and Edinburgh (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 1,087 verified decision-maker contacts tracked across these 117 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 19, 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.