Company lists · Data refreshed September 2026

Top 25 Marine construction companies based in the United Kingdom

Name: Marine construction 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 17, 2026 196 companies tracked

RevenueBase identified 196 marine construction companies headquartered in the United Kingdom as of September 2026 and tracks 3,814 professional contacts across them, including 1,047 with verified work emails. London is the largest hub.

This list covers marine construction 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 17, 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 17, 2026 86% judged on-target in blind review

196Companies

3,814Contacts tracked

1,047Verified emails

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The 25 largest marine construction companies based in the United Kingdom

Ranked by team size

Top 25 of 196 marine construction companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to marine construction 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	Apcl Cammell Laird Shiprepairers & Shipbuilders Limited	Partial evidence	Birkenhead, United KingdomHQ checked Sep 17, 2026	501-1,000	397 contacts →
	Partial evidence “Cammell Laird, part of the APCL Group, is one of the most illustrious names in the global maritime industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	Boskalis Westminster LTD	Indirect evidence	Fareham, United KingdomHQ checked Sep 17, 2026	51-200	363 contacts →
	Indirect evidence “Boskalis Westminster Ltd (BWL) is the leading dredging contractor in the UK and Ireland.” Source: RevenueBase Database · checked Sep 17, 2026
3	Apcl A&p Group Limited	Partial evidence	Hebburn, United KingdomHQ checked Sep 17, 2026	501-1,000	240 contacts →
	Partial 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 17, 2026
4	Ferguson Marine Port Glasgow Limited	Partial evidence	Port Glasgow, United KingdomHQ checked Sep 17, 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 17, 2026
5	Dales Marine Services LTD	Partial evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	51-200	120 contacts →
	Partial 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 17, 2026
6	Modutec	Partial evidence	Aberdeen, United KingdomHQ checked Sep 17, 2026	51-200	103 contacts →
	Partial evidence “Repair, Conversion and New Build of Marine and Offshore Living Quarters and Technical Buildings.” Source: RevenueBase Database · checked Sep 17, 2026
7	SMS Group Ship Repair Marine Interiors Marine Engineering SC Sqep	Partial evidence	Southampton, United KingdomHQ checked Sep 17, 2026	51-200	89 contacts →
	Partial 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 17, 2026
8	Foundocean	Strong evidence	Livingston, United KingdomHQ checked Sep 17, 2026	51-200	85 contacts →
	Strong evidence “FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.” Source: RevenueBase Database · checked Sep 17, 2026
9	UK Docks Marine Services	Partial evidence	Tyne & Wear, United KingdomHQ checked Sep 17, 2026	201-500	72 contacts →
	Partial 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 17, 2026
10	TMS LTD	Partial evidence	Devon, United KingdomHQ checked Sep 17, 2026	51-200	65 contacts →
	Partial evidence “TMS Ltd have in excess of 31 years of expertise as a marine contractor within the Civil Engineering sector.” Source: RevenueBase Database · checked Sep 17, 2026
11	Atlantic Pacific Marine LTD	Partial evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	11-50	63 contacts →
	Partial evidence “Atlantic Pacific Marine is your dedicated marine service specialist.” Source: RevenueBase Database · checked Sep 17, 2026
12	Land And Marine Engineering Limited	Strong evidence	Bromborough, United KingdomHQ checked Sep 17, 2026	201-500	52 contacts →
	Strong evidence “Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company.” Source: RevenueBase Database · checked Sep 17, 2026
13	Edwards Diving Services LTD	Partial evidence	Pontypridd, United KingdomHQ checked Sep 17, 2026	51-200	46 contacts →
	Partial evidence “EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
14	GPS Marine Contractors LTD	Strong evidence	Rochester, United KingdomHQ checked Sep 17, 2026	51-200	44 contacts →
	Strong evidence “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Source: RevenueBase Database · checked Sep 17, 2026
15	Southbay Civil Engineering LTD	Partial evidence	Gateshead, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Over the last 20 years Southbay has developed a reputation as one of the UK’s leading maritime civil engineering contractors, undertaking technically challenging projects within…” Source: RevenueBase Database · checked Sep 17, 2026
16	Beckett Rankine	Partial evidence	Westminster, United KingdomHQ checked Sep 17, 2026	11-50	39 contacts →
	Partial evidence “Beckett Rankine is the UK's leading maritime engineering consultancy.” Source: RevenueBase Database · checked Sep 17, 2026
17	Orwell Offshore	Indirect evidence	Ipswich, United KingdomHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “Orwell Offshore, established in 2006, is a UK headquartered Naval Architecture and Offshore Engineering company with offices in Ipswich, London, Singapore, Nigeria, and Indonesia.” Source: RevenueBase Database · checked Sep 17, 2026
18	Keynvor Morlift LTD	Partial evidence	Falmouth, United KingdomHQ checked Sep 17, 2026	51-200	37 contacts →
	Partial evidence “Keynvor Morlift Ltd is a UK-based marine contracting and consulting firm.” Source: RevenueBase Database · checked Sep 17, 2026
19	Topbond PLC	Strong evidence	Sittingbourne, United KingdomHQ checked Sep 17, 2026	51-200	35 contacts →
	Strong evidence “Established in 1975, Topbond PLC is a proud family business delivering technically innovative, expertly managed solutions across the construction and marine sectors.” Source: RevenueBase Database · checked Sep 17, 2026
20	Diveco Marine LTD	Partial evidence	Northfleet, United KingdomHQ checked Sep 17, 2026	11-50	35 contacts →
	Partial evidence “A dynamic, award winning and multi-disciplined specialist contractor, providing civil engineering solutions for marine orientated projects, private and public sector projects.” Source: RevenueBase Database · checked Sep 17, 2026
21	Mainstay Marine Solutions	Partial evidence	Pembroke Dock, United KingdomHQ checked Sep 17, 2026	51-200	31 contacts →
	Partial evidence “We’re shaping the future of marine engineering.” Source: RevenueBase Database · checked Sep 17, 2026
22	Harland & Wolff	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	27 contacts →
	Partial evidence “Building on around 160 years of marine manufacturing experience, Harland & Wolff offers a unique combination of vast facilities and technical capability.” Source: RevenueBase Database · checked Sep 17, 2026
23	Apcl Group	Indirect evidence	Birkenhead, United KingdomHQ checked Sep 17, 2026	1,001-5,000	21 contacts →
	Indirect evidence “The APCL Group brings together A&P Group, Cammell Laird and Neway.” Source: RevenueBase Database · checked Sep 17, 2026
24	Alicat Workboats LTD	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 17, 2026	51-200	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Wallace Stone LLP	Indirect evidence	Dingwall, United KingdomHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence “Wallace Stone (formerly Wallace Stone & Partners) was established in 1973 and is a member of the Association for Consultancy and Engineering.” Source: RevenueBase Database · checked Sep 17, 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 construction 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 construction companies.
Partial evidence: Its own public description names part of marine construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine construction 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 196 marine construction companies based in the United Kingdom

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Marine construction companies based in the United Kingdom at a glance

As of Sep 17, 2026

27.5%Verified-email coverage

19.5Average contacts per company

11-50Median size (employees)

9.7%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 196 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 construction 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 construction 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 construction 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 construction 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, 1,047 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 17, 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 construction 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 construction companies are there based in the United Kingdom?

RevenueBase identified 196 marine construction 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?

Apcl Cammell Laird Shiprepairers & Shipbuilders Limited, headquartered in Birkenhead, tops this list with the largest team on record.

Which city has the most marine construction companies?

London leads with 19 headquartered companies, followed by Southampton (6) and Aberdeen (4).

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 1,047 verified decision-maker contacts tracked across these 196 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 17, 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.