Company lists · Data refreshed October 2026

Top 25 Marine infrastructure construction firms based in the United Kingdom

Name: Marine infrastructure construction firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 259 companies tracked

RevenueBase identified 259 company matches for marine infrastructure construction firms associated with the United Kingdom as of October 2026 and tracks 5,074 professional contacts across them, including 1,614 with verified work emails. London is the largest hub.

This list covers company matches for marine infrastructure construction firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 18, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 18, 2026 How this list was built

259Companies

5,074Contacts tracked

1,614Verified emails

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The 25 largest marine infrastructure construction firms based in the United Kingdom

Ranked by team size

Top 25 of 259 company matches for marine infrastructure construction firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Boskalis Westminster LTD	Exact match	Fareham, United KingdomHQ recorded Oct 18, 2026	51-200	390 contacts →
	Exact match “Boskalis Westminster Ltd (BWL) is the leading dredging contractor in the UK and Ireland.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2	Apcl Cammell Laird Shiprepairers & Shipbuilders Limited	Exact match	Birkenhead, United KingdomHQ recorded Oct 18, 2026	501-1,000	336 contacts →
	Exact match “Cammell Laird, part of the APCL Group, is one of the most illustrious names in the global maritime industry.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3	Apcl A&p Group Limited	Exact match	Hebburn, United KingdomHQ recorded Oct 18, 2026	501-1,000	221 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4	RJ Mcleod Contractors Limited	Exact match	Glasgow, United KingdomHQ recorded Oct 18, 2026	201-500	209 contacts →
	Exact match “RJ McLeod stands as one of the country’s leading civil engineering and building contractors.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5	Ferguson Marine Port Glasgow Limited	Exact match	Port Glasgow, United KingdomHQ recorded Oct 18, 2026	201-500	170 contacts →
	Exact match “Ferguson Marine (Port Glasgow) Limited is Scotland's leading company in new build, refit and ship repair.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6	Mackley	Exact match	Small Dole, United KingdomHQ recorded Oct 18, 2026	51-200	124 contacts →
	Exact match “Mackley provides a comprehensive range of services from conception through construction to project delivery.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7	MPI Offshore	Exact match	Stokesley, United KingdomHQ recorded Oct 18, 2026	51-200	111 contacts →
	Exact match “We furnish all-round solutions, including engineering, procurement, and construction in the full value chain of offshore wind and adjacent marine construction activities.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8	Land Water	Exact match	Guildford, United KingdomHQ recorded Oct 18, 2026	201-500	107 contacts →
	Exact match “Land + Water is more than just a dredging company.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9	Modutec	Exact match	Aberdeen, United KingdomHQ recorded Oct 18, 2026	51-200	104 contacts →
	Exact match “Repair, Conversion and New Build of Marine and Offshore Living Quarters and Technical Buildings.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10	Foundocean	Exact match	Livingston, United KingdomHQ recorded Oct 18, 2026	51-200	88 contacts →
	Exact match “FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11	SMS Group Ship Repair Marine Interiors Marine Engineering SC Sqep	Exact match	Southampton, United KingdomHQ recorded Oct 18, 2026	51-200	84 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12	Holyhead Towing Co. LTD	Exact match	Holyhead, United KingdomHQ recorded Oct 18, 2026	51-200	79 contacts →
	Exact match “Holyhead Towing Company (Est.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13	Bibby Marine	Exact match	Liverpool, United KingdomHQ recorded Oct 18, 2026	51-200	73 contacts →
	Exact match “Formerly Bibby Marine Services and Bibby Maritime.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14	TMS LTD	Exact match	Devon, United KingdomHQ recorded Oct 18, 2026	51-200	71 contacts →
	Exact match “TMS Ltd have in excess of 31 years of expertise as a marine contractor within the Civil Engineering sector.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15	The Seaking Group	Exact match	Birkenhead, United KingdomHQ recorded Oct 18, 2026	51-200	57 contacts →
	Exact match “The SeaKing Group offers specialist electrical engineering services to the marine, industrial, commercial, military and offshore sectors.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16	Land And Marine Engineering Limited	Exact match	Bromborough, United KingdomHQ recorded Oct 18, 2026	201-500	54 contacts →
	Exact match “Land and Marine Engineering Limited, a part of the Murphy Group of companies is an international engineering and construction company.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17	GME Services Global Maritime Engineering Services	Exact match	Bridgend, United KingdomHQ recorded Oct 18, 2026	501-1,000	53 contacts →
	Exact match “GME Services Limited provides complete engineering management & support for the maritime industry; working Globally, 24 hours a day, 365 days a year.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18	Edwards Diving Services LTD	Exact match	Pontypridd, United KingdomHQ recorded Oct 18, 2026	51-200	52 contacts →
	Exact match “EDWARDS DIVING SERVICES LIMITED (EDS) is a specialist Marine & Civil Engineering company located in South Wales, United Kingdom.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19	Macduff Group	Exact match	Macduff, United KingdomHQ recorded Oct 18, 2026	51-200	50 contacts →
	Exact match “Macduff Shipyards Group comprises Shipyards, Macduff Crane Hire and Macduff Profilers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20	Southbay Civil Engineering LTD	Exact match	Gateshead, United KingdomHQ recorded Oct 18, 2026	51-200	47 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21	GPS Marine Contractors LTD	Exact match	Rochester, United KingdomHQ recorded Oct 18, 2026	51-200	46 contacts →
	Exact match “Marine Contractors specialising in: Marine Civil Engineering and Construction.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22	Beckett Rankine	Exact match	Westminster, United KingdomHQ recorded Oct 18, 2026	11-50	44 contacts →
	Exact match “Beckett Rankine is the UK's leading maritime engineering consultancy.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23	Topbond PLC	Exact match	Sittingbourne, United KingdomHQ recorded Oct 18, 2026	51-200	42 contacts →
	Exact match “Established in 1975, Topbond PLC is a proud family business delivering technically innovative, expertly managed solutions across the construction and marine sectors.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24	Keynvor Morlift LTD	Exact match	Falmouth, United KingdomHQ recorded Oct 18, 2026	51-200	39 contacts →
	Exact match “Keynvor Morlift Ltd is a UK-based marine contracting and consulting firm.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25	Ovenden Earthmoving	Exact match	Canterbury, United KingdomHQ recorded Oct 18, 2026	51-200	36 contacts →
	Exact match “Specialist Contractors For Earthmoving, Crushing & Recycling, Sea & Coastal Defences” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marine infrastructure construction firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 259 marine infrastructure construction firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,614 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine infrastructure construction firms based in the United Kingdom at a glance

As of Oct 18, 2026

31.8%Verified-email coverage

19.6Average contacts per company

11-50Median size (employees)

7.3%Largest-city concentration · London

Oct 18, 2026Page data refreshed

Companies by employee count

1-10

120

11-50

51-200

201-500

501-1,000

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 259 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “marine infrastructure construction firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,614 professional contacts with verified work emails across the full matched dataset. 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 October 18, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marine infrastructure construction firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine infrastructure construction firms are there based in the United Kingdom?

RevenueBase identified 259 company matches for marine infrastructure construction firms associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Boskalis Westminster LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine infrastructure construction firms?

London leads with 19 company records, followed by Bristol (5) and Southampton (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,614 professional contacts with verified work emails tracked across these 259 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 18, 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 SmartSearch, 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.