Company lists · Data refreshed September 2026

Top 25 Maritime systems integration companies based in the United Kingdom

RevenueBase identified 384 company matches for maritime systems integration companies associated with the United Kingdom as of September 2026 and tracks 10,554 professional contacts across them, including 2,794 with verified work emails. London is the largest hub.

This list covers company matches for maritime systems integration companies 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 September 28, 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 Sep 28, 2026 How this list was built
384Companies
10,554Contacts tracked
2,794Verified emails
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The 25 largest maritime systems integration companies based in the United Kingdom

Ranked by team size
Top 25 of 384 company matches for maritime systems integration companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 28, 20265,001-10,000840 contacts →

Exact match

“Ultra Electronics”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 2026n/a681 contacts →

Exact match

“SDSD - Supporting Maritime Professionals since 1983 Software innovation to the Maritime industry for more than 30 years.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchHereford, United KingdomHQ recorded Sep 28, 202651-200435 contacts →

Exact match

“Always On"- We are at the heart of a diverse and interdependent global maritime eco-system.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchBeckington, United KingdomHQ recorded Sep 28, 2026201-500392 contacts →

Exact match

“For over 60 years, SEA has delivered research, development, manufacturing, training, and support of complex maritime systems to the Royal Navy, international partners, and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500295 contacts →

Exact match

“Welcome to OneOcean: the ocean’s digital ecosystem and trusted partner for maritime businesses worldwide.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchNew Malden, United KingdomHQ recorded Sep 28, 2026201-500279 contacts →

Exact match

“Sperry Marine provides the commercial and defence maritime industry with Navigation Solutions that excel in efficiency, reliability and safety.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchHebburn, United KingdomHQ recorded Sep 28, 2026501-1,000240 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 · Sep 28, 2026 · View company records in RevenueBase
8Exact matchLoanhead, United KingdomHQ recorded Sep 28, 2026201-500210 contacts →

Exact match

“A Scottish engineering company founded in 1898, MacTaggart Scott supports the Naval Defence and Marine market.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchNorwich, United KingdomHQ recorded Sep 28, 20261,001-5,000204 contacts →

Exact match

“Shaping the future of maritime.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchRedhill, United KingdomHQ recorded Sep 28, 2026201-500187 contacts →

Exact match

“NSSLGIobaI is a leading independent provider of satellite communications and IT solutions to marine, offshore and land-based users with innovation and customer service at the core…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200183 contacts →

Exact match

“Pole Star Global is a maritime intelligence and technology solutions company, focusing on reducing risk and optimising trade efficiency.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchHorsham, United KingdomHQ recorded Sep 28, 2026201-500176 contacts →

Exact match

“Defence Leaders around the world work with Chess for market-leading, reliable defence systems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200161 contacts →

Exact match

“Creating clarity, control and confidence for modern maritime operations with OpenOcean STUDIO.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchGlasgow, United KingdomHQ recorded Sep 28, 2026201-500155 contacts →

Exact match

“SeaTec provides a comprehensive range of services and products to meet the needs of the shipping, offshore and defence industries.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200132 contacts →

Exact match

“Founded in 2018 by a team of Navy veterans, Orca AI, a maritime tech startup, empowers shipping companies to enhance their operational safety, efficiency, and sustainability…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchMidsomer Norton, United KingdomHQ recorded Sep 28, 202651-200129 contacts →

Exact match

“SRT Marine Systems PLC is a global leader and innovator in maritime surveillance, intelligence, navigation safety and situational awareness.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Sep 28, 202651-200113 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchDover, United KingdomHQ recorded Sep 28, 202651-200111 contacts →

Exact match

“VIKING MARITIME GROUP is a British company with over 35 years experience, and is made up of the following 3 businesses: VIKING CREW - The leading Cruise, Superyacht, Specialist…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchGrangemouth, United KingdomHQ recorded Sep 28, 2026201-50097 contacts →

Exact match

“GAC UK employs a team of over 350 specialists spread across 25+ branches throughout the UK, Ireland and Gibraltar.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20091 contacts →

Exact match

“Sea.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchSouthampton, United KingdomHQ recorded Sep 28, 202651-20089 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 · Sep 28, 2026 · View company records in RevenueBase
22Exact matchEdinburgh, United KingdomHQ recorded Sep 28, 202651-20081 contacts →

Exact match

“SeeByte provides clients in the global maritime industry with the most advanced software solutions to enhance the capabilities of their uncrewed systems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20078 contacts →

Exact match

“Ulysses Systems is a leading marine industry provider of enterprise software.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchPortsmouth, United KingdomHQ recorded Sep 28, 2026201-50076 contacts →

Exact match

“CMS2 has over 60-years’ experience of designing, developing, manufacturing and supporting atmosphere management and life support systems for submarines and other critical…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20076 contacts →

Exact match

“High-performance dual-use composite littoral platforms for defence and commercial application in the maritime industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 384 maritime systems integration companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,794 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Maritime systems integration companies based in the United Kingdom at a glance

As of Sep 28, 2026
26.5%Verified-email coverage
27.5Average contacts per company
1-10Median size (employees)
14.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
205
11-50
112
51-200
34
201-500
16
501-1,000
4
1,001-5,000
7
5,001-10,000
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 384 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 “maritime systems integration companies” 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 2,794 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 September 28, 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.

Maritime systems integration companies by metro

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 “maritime systems integration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many maritime systems integration companies are there based in the United Kingdom?

RevenueBase identified 384 company matches for maritime systems integration companies associated with the United Kingdom as of September 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?

Ultra Electronics Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most maritime systems integration companies?

London leads with 55 company records, followed by Southampton (22) and Bristol (13).

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 2,794 professional contacts with verified work emails tracked across these 384 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 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 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.