Company lists · Data refreshed September 2026

Top 25 Maritime infrastructure companies based in the United Kingdom

RevenueBase identified 321 maritime infrastructure companies headquartered in the United Kingdom as of September 2026 and tracks 16,703 professional contacts across them, including 5,700 with verified work emails. London is the largest hub.

This list covers maritime infrastructure 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 20, 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 20, 2026 86% judged on-target in blind review
321Companies
16,703Contacts tracked
5,700Verified emails
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The 25 largest maritime infrastructure companies based in the United Kingdom

Ranked by team size
Top 25 of 321 maritime infrastructure companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to maritime infrastructure 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261,001-5,0003,324 contacts →

Indirect evidence

“Global trade has always depended on the port and since 1847 Inchcape Shipping Services has provided the local knowledge and means to deliver port calls that enable business to…”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 20, 20265,001-10,0001,701 contacts →

Partial evidence

“Starting with a single ship, Zodiac Maritime has grown into one of the world's largest and most respected shipping companies.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceSt. Katharine Docks, United KingdomHQ checked Sep 20, 20261,001-5,0001,343 contacts →

Partial evidence

“Clarksons is at the heart of maritime global shipping.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 20, 20261,001-5,0001,292 contacts →

Indirect evidence

“ABP is the UK’s leading ports group.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceAberdeenshire, United KingdomHQ checked Sep 20, 2026501-1,000955 contacts →

Partial evidence

“Altera Infrastructure is a leading global energy infrastructure services group focused on the ownership and operation of offshore energy assets.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceLiverpool, United KingdomHQ checked Sep 20, 20261,001-5,000856 contacts →

Indirect evidence

“Central to growing the UK’s economy, logistics and sustainability journey, we are driven by a vision to become the industry leader for safety, performance and sustainable growth.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceBurntisland, United KingdomHQ checked Sep 20, 2026501-1,000387 contacts →

Indirect 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 20, 2026
8Indirect evidenceEdinburgh, United KingdomHQ checked Sep 20, 20261,001-5,000330 contacts →

Indirect evidence

“Forth Ports Group owns and operates eight strategically located ports across England and Scotland.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceDover, United KingdomHQ checked Sep 20, 2026201-500259 contacts →

Indirect evidence

“The Port of Dover is the UK's busiest international ferry port and a vital gateway for the movement of people and trade.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceHebburn, United KingdomHQ checked Sep 20, 2026501-1,000240 contacts →

Indirect 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 20, 2026
11Indirect evidenceSouth Shields, United KingdomHQ checked Sep 20, 2026201-500237 contacts →

Indirect evidence

“The Port of Tyne is one of the UK’s major deep-sea ports – delivering bespoke solutions for the green energy sector, supporting world leaders in the automotive transition…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceNorwich, United KingdomHQ checked Sep 20, 20261,001-5,000204 contacts →

Partial evidence

“Shaping the future of maritime.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSouthampton, United KingdomHQ checked Sep 20, 2026201-500157 contacts →

Indirect evidence

“The MDL team includes experienced and professionally qualified specialists in all facets of marina development and marina operations.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidencePort Glasgow, United KingdomHQ checked Sep 20, 2026201-500156 contacts →

Indirect evidence

“Ferguson Marine (Port Glasgow) Limited is Scotland's leading company in new build, refit and ship repair.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 20, 202651-200128 contacts →

Partial evidence

“Drewry is a leading international provider of research and consulting services to the maritime and shipping industry.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceManchester, United KingdomHQ checked Sep 20, 202651-200113 contacts →

Partial evidence

“SpecTec is a market-leading maritime technology company specialising in asset management software.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceSouthampton, United KingdomHQ checked Sep 20, 202651-20089 contacts →

Indirect 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 20, 2026
18Indirect evidenceLivingston, United KingdomHQ checked Sep 20, 202651-20085 contacts →

Indirect evidence

“FoundOcean boasts 60 years’ experience of providing green and brown field services to the marine construction industries.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceHolyhead, United KingdomHQ checked Sep 20, 202651-20075 contacts →

Indirect evidence

“Holyhead Towing Company (Est.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceLiverpool, United KingdomHQ checked Sep 20, 202651-20072 contacts →

Partial evidence

“Formerly Bibby Marine Services and Bibby Maritime.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceSouthampton, United KingdomHQ checked Sep 20, 202651-20067 contacts →

Indirect evidence

“Founded in 1894, Williams Shipping is a fifth-generation family-owned business offering a broad range of marine and logistics services, including vessel charter, port services…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 20, 2026201-50063 contacts →

Partial evidence

“VesselsValue is a leading provider of online valuations and market perspective for the maritime industry.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceCardiff, United KingdomHQ checked Sep 20, 202611-5063 contacts →

Indirect evidence

“Atlantic Pacific Marine is your dedicated marine service specialist.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceLondon, United KingdomHQ checked Sep 20, 2026201-50063 contacts →

Partial evidence

“A privately owned maritime platform focused on dry bulk shipping and offshore assets.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceSwansea, United KingdomHQ checked Sep 20, 202651-20061 contacts →

Partial evidence

“Purus HST is a division of Purus, a world leader in providing energy customers with maritime services to the offshore wind and gas transport industries.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 321 maritime infrastructure companies based in the United Kingdom

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Maritime infrastructure companies based in the United Kingdom at a glance

As of Sep 20, 2026
34.1%Verified-email coverage
52.0Average contacts per company
11-50Median size (employees)
21.8%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
143
11-50
77
51-200
58
201-500
13
501-1,000
8
1,001-5,000
11
5,001-10,000
1
10001+
1

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 321 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 maritime infrastructure 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 “maritime infrastructure 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 maritime infrastructure 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 maritime infrastructure 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, 5,700 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 20, 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.

Maritime infrastructure companies by metro

  • Maritime infrastructure companies in London70

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 maritime infrastructure 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 maritime infrastructure companies are there based in the United Kingdom?

RevenueBase identified 321 maritime infrastructure 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?

Inchcape Shipping Services, headquartered in London, tops this list with the largest team on record.

Which city has the most maritime infrastructure companies?

London leads with 70 headquartered companies, followed by Liverpool (6) and Southampton (6).

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 5,700 verified decision-maker contacts tracked across these 321 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 20, 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.