Company lists · Data refreshed September 2026
Top 25 Marine engineering services companies based in the United Kingdom
RevenueBase identified 552 marine engineering services companies headquartered in the United Kingdom as of September 2026 and tracks 8,138 professional contacts across them, including 2,377 with verified work emails. London is the largest hub.
This list covers marine engineering services 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 15, 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.
The 25 largest marine engineering services companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 387 contacts → | ||||
Partial evidence “Briggs Marine is a leading provider of marine and environmental services, specialising in port and marine operations, subsea and environmental support and vessel charter.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 286 contacts → | ||||
Partial evidence “2H Offshore delivers leading-edge advanced systems engineering for all types of offshore structures in the oil and gas and renewable energy sectors.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 240 contacts → | ||||
Strong evidence “A&P, part of the APCL Group, is a global marine engineering business which operates six dry docks across two strategic locations in the UK and delivers engineering excellence to…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 210 contacts → | ||||
Strong evidence “A Scottish engineering company founded in 1898, MacTaggart Scott supports the Naval Defence and Marine market.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 155 contacts → | ||||
Indirect evidence “SeaTec provides a comprehensive range of services and products to meet the needs of the shipping, offshore and defence industries.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 138 contacts → | ||||
Partial evidence “The Engineering Consultants.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 120 contacts → | ||||
Strong evidence “Founded in 1987, Dales Marine provide a diverse range of vessel and ship repair, fabrication, steelwork and engineering services for the shipping, oil & gas, chemical and civil…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 103 contacts → | ||||
Indirect evidence “Star International specialises in keeping vessels safe and compliant.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 89 contacts → | ||||
Strong evidence “Southampton Marine Services Ltd was established in 2004 and specialises in ship / work boat building, vessel repair and marine engineering; we trade in four markets - Commercial…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 87 contacts → | ||||
Strong 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 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 84 contacts → | ||||
Partial evidence “Waves Group combines the expertise of Cwaves and Mwaves as leading, independent marine consultants to the shipping and offshore energy industries.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 81 contacts → | ||||
Partial 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 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 75 contacts → | ||||
Partial evidence “We are committed to providing an exceptional end-to-end service within the marine sector.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 72 contacts → | ||||
Indirect evidence “UK Docks offers dry docks, afloat repair berths and specialist boat repair facilities throughout the UK and employs specialist service engineers for vessel repair, construction…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 69 contacts → | ||||
Partial evidence “ABPmer is a leading UK marine consultancy, creating sustainable solutions for clients in the marine environment.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 68 contacts → | ||||
Partial evidence “Royston are a dynamic and expanding diesel engine supply, service and repair company operating successfully within the marine, offshore, industrial, defence and rail sectors for…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 63 contacts → | ||||
Partial evidence “Wärtsilä Shaft Line Solutions is Wärtsilä's end-to-end marine shaft line product and service provider, leading the industry in the design, manufacture, and servicing of equipment.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 63 contacts → | ||||
Partial evidence “Atlantic Pacific Marine is your dedicated marine service specialist.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 59 contacts → | ||||
Indirect evidence “Originally formed to exploit the wealth of design knowledge, technical skills and resources built up through Ben Ainslie Racing (BAR) involvement in the America’s Cup, BAR…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 59 contacts → | ||||
Partial evidence “Maritime Craft Services (clyde) Limited is a Maritime company located in Irvine Rd, Largs, United Kingdom.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 57 contacts → | ||||
Strong evidence “Safeguard Engineering Ltd provides expert Engineering Support and Consultancy Services to clients in the Defence, Commercial, Maritime Aviation and Leisure Marine Industries.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 54 contacts → | ||||
Indirect evidence “Providing Safety through Mechanical Excellence.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Partial evidence “Response Engineering Solutions Limited is a proactive company operating within the complex fields of mechanical & electrical engineering within the UK’s wide range of material…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
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 engineering services 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 marine engineering services companies.
- Partial evidence
- Its own public description names part of marine engineering services companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name marine engineering services 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 552 marine engineering services companies based in the United Kingdom
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Marine engineering services companies based in the United Kingdom at a glance
As of Sep 15, 2026Companies by employee count
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 552 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 engineering services 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 “marine engineering services 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 marine engineering services 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 marine engineering services 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, 2,377 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 15, 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.
Marine engineering services companies by metro
- Marine engineering services companies in London54
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 engineering services 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 marine engineering services companies are there based in the United Kingdom?
RevenueBase identified 552 marine engineering services 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?
Briggs Marine, headquartered in Burntisland, tops this list with the largest team on record.
Which city has the most marine engineering services companies?
London leads with 54 headquartered companies, followed by Southampton (24) and Aberdeen (21).
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 2,377 verified decision-maker contacts tracked across these 552 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 15, 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.
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