Company lists · Data refreshed September 2026

Top 25 Electrical systems integrators marine companies based in the United Kingdom

Name: Electrical systems integrators marine 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 28, 2026 392 companies tracked

RevenueBase identified 392 electrical systems integrators marine companies headquartered in the United Kingdom as of September 2026 and tracks 3,603 professional contacts across them, including 1,485 with verified work emails. London is the largest hub.

This list covers electrical systems integrators marine 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 28, 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 28, 2026 86% judged on-target in blind review

392Companies

3,603Contacts tracked

1,485Verified emails

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The 25 largest electrical systems integrators marine companies based in the United Kingdom

Ranked by team size

Top 25 of 392 electrical systems integrators marine companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to electrical systems integrators marine 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	Sperry Marine	Partial evidence	New Malden, United KingdomHQ checked Sep 28, 2026	201-500	279 contacts →
	Partial evidence “Sperry Marine provides the commercial and defence maritime industry with Navigation Solutions that excel in efficiency, reliability and safety.” Source: RevenueBase Database · checked Sep 28, 2026
2	Ideaworks	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	158 contacts →
	Indirect evidence “Ideaworks is a global leader in the design, supply, engineering, and aftercare of technology experiences for luxury spaces on land and at sea, including private homes…” Source: RevenueBase Database · checked Sep 28, 2026
3	Ferguson Marine Port Glasgow Limited	Partial evidence	Port Glasgow, United KingdomHQ checked Sep 28, 2026	201-500	156 contacts →
	Partial evidence “Ferguson Marine (Port Glasgow) Limited is Scotland's leading company in new build, refit and ship repair.” Source: RevenueBase Database · checked Sep 28, 2026
4	Asee Group	Partial evidence	Newry, United KingdomHQ checked Sep 28, 2026	51-200	151 contacts →
	Partial evidence “ASEE Group is a leader in mechanical and electrical engineering, specialising in generator integration and full-service installations for 45+ years.” Source: RevenueBase Database · checked Sep 28, 2026
5	Barrus LTD	Indirect evidence	Bicester, United KingdomHQ checked Sep 28, 2026	51-200	119 contacts →
	Indirect evidence “For over a century, Barrus has been entrusted with missions where failure isn't an option.” Source: RevenueBase Database · checked Sep 28, 2026
6	Relay Engineering	Indirect evidence	Plymouth, United KingdomHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “Established over 30 years ago, Relay was incorporated in 1989 as Relay South-West, later changing its name to Relay Engineering in January 2007.” Source: RevenueBase Database · checked Sep 28, 2026
7	AQ Wiring Systems Rockford	Strong evidence	Rendlesham, United KingdomHQ checked Sep 28, 2026	51-200	74 contacts →
	Strong evidence “AQ Wiring Systems Rockford designs and manufactures high-reliability electrical systems, cable assemblies, and electro-mechanical solutions for defence, aerospace, and advanced…” Source: RevenueBase Database · checked Sep 28, 2026
8	Mcgeoch Technology Limited	Strong evidence	Birmingham, United KingdomHQ checked Sep 28, 2026	51-200	54 contacts →
	Strong 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 28, 2026
9	Lloyd Morris Electrical LTD	Strong evidence	Wrexham, United KingdomHQ checked Sep 28, 2026	51-200	47 contacts →
	Strong evidence “Lloyd Morris Electrical Limited is a company of Electrical Engineers, specialising in the design, manufacture and installation of Electrical Distribution and Control Systems for…” Source: RevenueBase Database · checked Sep 28, 2026
10	The Seaking Group	Strong evidence	Birkenhead, United KingdomHQ checked Sep 28, 2026	51-200	46 contacts →
	Strong evidence “The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.” Source: RevenueBase Database · checked Sep 28, 2026
11	AEL Specialist Electrical Distributors	Strong evidence	Aberdeen, United KingdomHQ checked Sep 28, 2026	11-50	44 contacts →
	Strong evidence “AEL is a leading electrical supply company, specialising in the supply of underwater connectors, hazardous area electrical equipment to the Industrial, Subsea,Marine, Offshore…” Source: RevenueBase Database · checked Sep 28, 2026
12	Icon Connect	Partial evidence	Letchworth, United KingdomHQ checked Sep 28, 2026	51-200	40 contacts →
	Partial evidence “Icon Connect are a world leader in integrated Audio Visual, Security, IT and Control systems.” Source: RevenueBase Database · checked Sep 28, 2026
13	Energy Solutions UK LTD	Strong evidence	Aylesford, United KingdomHQ checked Sep 28, 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 28, 2026
14	EMI Co. LTD	Indirect evidence	Gainsborough, United KingdomHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “Keeping power, water, and rail moving since 1966.” Source: RevenueBase Database · checked Sep 28, 2026
15	Cablescan An Amphenol Company	Strong evidence	Brough, United KingdomHQ checked Sep 28, 2026	51-200	36 contacts →
	Strong evidence “Cablescan manufactures high performance electrical cable assemblies and control panels for defence, aerospace, marine, industrial, and commercial applications.” Source: RevenueBase Database · checked Sep 28, 2026
16	SMI	Partial evidence	Andover, United KingdomHQ checked Sep 28, 2026	51-200	35 contacts →
	Partial evidence “SMI's 'fit and forget' cable systems form the central nervous systems of critical infrastructure operating in hostile environments, including naval ships, submarines, aircraft…” Source: RevenueBase Database · checked Sep 28, 2026
17	MJR Power & Automation	Strong evidence	Thornaby, United KingdomHQ checked Sep 28, 2026	11-50	35 contacts →
	Strong 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 28, 2026
18	Armada Engineering	Partial evidence	Falmouth, United KingdomHQ checked Sep 28, 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 28, 2026
19	Fairburns Group Limited	Partial evidence	Hull, United KingdomHQ checked Sep 28, 2026	51-200	33 contacts →
	Partial evidence “Total Electrical, Mechanical, Plumbing and Building Service Services Provider.” Source: RevenueBase Database · checked Sep 28, 2026
20	ADI Electrical	Partial evidence	Kings Norton, United KingdomHQ checked Sep 28, 2026	201-500	32 contacts →
	Partial evidence “adi Electrical have been delivering high quality and reliable Electrical Installation services for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
21	Caravan Park Electrical Services - Maricer	Indirect evidence	Spilsby, United KingdomHQ checked Sep 28, 2026	11-50	32 contacts →
	Indirect evidence “Over 40 years of providing power solutions to the leisure industry!” Source: RevenueBase Database · checked Sep 28, 2026
22	Mainstay Marine Solutions	Partial evidence	Pembroke Dock, United KingdomHQ checked Sep 28, 2026	51-200	31 contacts →
	Partial evidence “We’re shaping the future of marine engineering.” Source: RevenueBase Database · checked Sep 28, 2026
23	Mechanica Utilities LTD	Partial evidence	Dover, United KingdomHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “With workshop, machine shop and fabrication capabilities, Mechanica Utilities Ltd are mechanical & electrical sitework / workshop specialists, that offer the following skills /…” Source: RevenueBase Database · checked Sep 28, 2026
24	RAD Propulsion	Indirect evidence	Sarisbury Green, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “At RAD, we're redefining what modern vessels can do.” Source: RevenueBase Database · checked Sep 28, 2026
25	Golden Arrow Marine	Partial evidence	Southampton, United KingdomHQ checked Sep 28, 2026	51-200	27 contacts →
	Partial evidence “Golden Arrow Marine - More Than Marine Engineers With branches in Poole, Southampton, Portsmouth and Swanwick and more than 80 years serving our customers, we offer mobile repair…” Source: RevenueBase Database · checked Sep 28, 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: electrical systems integrators marine 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 electrical systems integrators marine companies.
Partial evidence: Its own public description names part of electrical systems integrators marine companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical systems integrators marine 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 392 electrical systems integrators marine companies based in the United Kingdom

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Electrical systems integrators marine companies based in the United Kingdom at a glance

As of Sep 28, 2026

41.2%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

219

11-50

130

51-200

201-500

1,001-5,000

10001+

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 392 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 electrical systems integrators marine 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 “electrical systems integrators marine 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 electrical systems integrators marine 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 electrical systems integrators marine 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, 1,485 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 28, 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.

Electrical systems integrators marine companies by metro

Electrical systems integrators marine companies in London32

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 electrical systems integrators marine 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 electrical systems integrators marine companies are there based in the United Kingdom?

RevenueBase identified 392 electrical systems integrators marine 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?

Sperry Marine, headquartered in New Malden, tops this list with the largest team on record.

Which city has the most electrical systems integrators marine companies?

London leads with 32 headquartered companies, followed by Southampton (11) and Nottingham (8).

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 1,485 verified decision-maker contacts tracked across these 392 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 28, 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.