Company lists · Data refreshed September 2026

Top 25 Marine systems integrators based in the United Kingdom

Name: Marine systems integrators based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 193 companies tracked

RevenueBase identified 193 marine systems integrators headquartered in the United Kingdom as of September 2026 and tracks 2,766 professional contacts across them, including 671 with verified work emails. London is the largest hub.

This list covers marine systems integrators 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 21, 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 21, 2026 86% judged on-target in blind review

193Companies

2,766Contacts tracked

671Verified emails

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The 25 largest marine systems integrators based in the United Kingdom

Ranked by team size

Top 25 of 193 marine systems integrators based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to marine systems integrators: 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	Ultra Electronics Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	840 contacts →
	Indirect evidence “Ultra Electronics” Source: RevenueBase Database · checked Sep 21, 2026
2	SRT Marine Systems PLC	Strong evidence	Midsomer Norton, United KingdomHQ checked Sep 21, 2026	51-200	129 contacts →
	Strong evidence “SRT Marine Systems PLC is a global leader and innovator in maritime surveillance, intelligence, navigation safety and situational awareness.” Source: RevenueBase Database · checked Sep 21, 2026
3	Cms2	Partial evidence	Portsmouth, United KingdomHQ checked Sep 21, 2026	201-500	76 contacts →
	Partial evidence “CMS2 has over 60-years’ experience of designing, developing, manufacturing and supporting atmosphere management and life support systems for submarines and other critical…” Source: RevenueBase Database · checked Sep 21, 2026
4	Atlantic Pacific Marine LTD	Partial evidence	Cardiff, United KingdomHQ checked Sep 21, 2026	11-50	63 contacts →
	Partial evidence “Atlantic Pacific Marine is your dedicated marine service specialist.” Source: RevenueBase Database · checked Sep 21, 2026
5	Mcgeoch Technology Limited	Partial evidence	Birmingham, United KingdomHQ checked Sep 21, 2026	51-200	54 contacts →
	Partial evidence “McGeoch Technology specialises in the design and manufacture of high-quality electrical control and instrumentation systems and specialist lighting for both land and sea…” Source: RevenueBase Database · checked Sep 21, 2026
6	GME Services Global Maritime Engineering Services	Partial evidence	Bridgend, United KingdomHQ checked Sep 21, 2026	501-1,000	42 contacts →
	Partial evidence “GME Services Limited provides complete engineering management & support for the maritime industry; working Globally, 24 hours a day, 365 days a year.” Source: RevenueBase Database · checked Sep 21, 2026
7	Coda Octopus Products	Indirect evidence	Edinburgh, United KingdomHQ checked Sep 21, 2026	51-200	41 contacts →
	Indirect 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 21, 2026
8	Energy Solutions UK LTD	Strong evidence	Aylesford, United KingdomHQ checked Sep 21, 2026	51-200	37 contacts →
	Strong evidence “Energy Solutions (UK) Ltd designs, manufactures and supplies integrated power, monitoring and control systems for marine, specialist vehicle, off‑grid and industrial applications…” Source: RevenueBase Database · checked Sep 21, 2026
9	MJR Power & Automation	Partial evidence	Thornaby, United KingdomHQ checked Sep 21, 2026	11-50	35 contacts →
	Partial evidence “MJR Power & Automation offers a comprehensive range of Marine Electrical Engineering Services including: Marine Electrical Consultancy, Marine Electrical & Automation Design…” Source: RevenueBase Database · checked Sep 21, 2026
10	Armada Engineering	Partial evidence	Falmouth, United KingdomHQ checked Sep 21, 2026	11-50	34 contacts →
	Partial evidence “We are global leaders in the field of yacht and ship hydraulics system design, installation and consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
11	RAD Propulsion	Indirect evidence	Sarisbury Green, United KingdomHQ checked Sep 21, 2026	11-50	28 contacts →
	Indirect evidence “At RAD, we're redefining what modern vessels can do.” Source: RevenueBase Database · checked Sep 21, 2026
12	Torpedo Factory Group	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	27 contacts →
	Strong evidence “AMAZING DIGITAL EXPERIENCES THAT WOW BY DESIGN Torpedo Factory Group is a Master Systems Integrator providing professional services for Intelligent Environments & Smart Buildings…” Source: RevenueBase Database · checked Sep 21, 2026
13	Whippendell Marine LTD	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “Electrical Solutions for the most demanding marine environments • Electrical Control and Distribution Panels • Ruggedised Electrical/Electronic Enclosures and Cabinets • Embarked…” Source: RevenueBase Database · checked Sep 21, 2026
14	Isherwoods	Indirect evidence	North Shields, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Fleet Readiness Through Integrated Logistics Support (ILS) With over 60 years of experience,"Isherwoods", a CMN NAVAL subsidiary, is a trusted leader in Integrated Logistics…” Source: RevenueBase Database · checked Sep 21, 2026
15	AQM Marine	Partial evidence	Plymouth, United KingdomHQ checked Sep 21, 2026	51-200	24 contacts →
	Partial evidence “AQM Marine specialises in delivering premium marine services tailored to meet the needs of boat owners, captains, and industry professionals.” Source: RevenueBase Database · checked Sep 21, 2026
16	Marineguard Systems Limited	Partial evidence	Southampton, United KingdomHQ checked Sep 21, 2026	11-50	23 contacts →
	Partial evidence “MarineGuard is recognised as the industry leader for the integration of leading edge technology-based superyacht security.” Source: RevenueBase Database · checked Sep 21, 2026
17	Sirm UK Marine LTD	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 21, 2026	51-200	22 contacts →
	Indirect evidence “SIRM UK is the only organisation anywhere in the world that has been continuously involved in the supply and support of ships’ radio installations since the very inception of…” Source: RevenueBase Database · checked Sep 21, 2026
18	Chersoft LTD	Partial evidence	Sheffield, United KingdomHQ checked Sep 21, 2026	11-50	22 contacts →
	Partial evidence “CHERSOFT design high quality marine data management solutions.” Source: RevenueBase Database · checked Sep 21, 2026
19	Actisense	Partial evidence	Poole, United KingdomHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “Actisense aim to be the installers product of choice by making navigation safer with the most reliable boat electronic systems.” Source: RevenueBase Database · checked Sep 21, 2026
20	Sensory International LTD	Indirect evidence	Macclesfield Cheshire, United KingdomHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “It can be done.” Source: RevenueBase Database · checked Sep 21, 2026
21	Diverse Performance Systems	Strong evidence	Southampton, United KingdomHQ checked Sep 21, 2026	11-50	17 contacts →
	Strong evidence “Diverse Yachts and C-Designs merge into Diverse Performance Systems Diverse Yachts is a leading supplier of custom marine electronics, technical hardware, and load cells, while…” Source: RevenueBase Database · checked Sep 21, 2026
22	Marine Electrical Engineering LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “We are an independent marine electrical engineering company recognised for our expertise within the marine industry providing bespoke and flexible engineering solutions across…” Source: RevenueBase Database · checked Sep 21, 2026
23	Fischer Panda UK Power Solutions	Partial evidence	Verwood, United KingdomHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Fischer Panda UK \| Power Solutions have enjoyed continued success in its core marine and vehicle marketplaces since it's original inception in 1994.” Source: RevenueBase Database · checked Sep 21, 2026
24	Oceanix International	Partial evidence	Surrey, United KingdomHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “Oceanix International is a go-to partner for all maritime bridge equipment and maintenance requirements.” Source: RevenueBase Database · checked Sep 21, 2026
25	ORCA	Partial evidence	Aberdeen, United KingdomHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “ORCA was established through the collaboration of industry professionals with decades of combined experience in the marine sector.” Source: RevenueBase Database · checked Sep 21, 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: marine systems integrators. 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 marine systems integrators.
Partial evidence: Its own public description names part of marine systems integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine systems integrators. 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 193 marine systems integrators based in the United Kingdom

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Marine systems integrators based in the United Kingdom at a glance

As of Sep 21, 2026

24.3%Verified-email coverage

14.3Average contacts per company

1-10Median size (employees)

10.9%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 193 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 marine systems integrators, 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 “marine systems integrators”. 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 marine systems integrators), 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 marine systems integrators, 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, 671 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 21, 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 marine systems integrators, 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 marine systems integrators are there based in the United Kingdom?

RevenueBase identified 193 marine systems integrators 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?

Ultra Electronics Group, headquartered in London, tops this list with the largest team on record.

Which city has the most marine systems integrators?

London leads with 21 headquartered companies, followed by Southampton (15) and Bristol (7).

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 671 verified decision-maker contacts tracked across these 193 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 21, 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.