Company lists · Data refreshed September 2026

Top 25 Marine software integration companies based in London, United Kingdom

Name: Marine software integration companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 87 companies tracked

RevenueBase identified 87 marine software integration companies headquartered in London, United Kingdom as of September 2026 and tracks 3,802 professional contacts across them, including 481 with verified work emails and 225 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers marine software integration companies headquartered in London, 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 13, 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 13, 2026 86% judged on-target in blind review

87Companies

3,802Contacts tracked

481Verified emails

225Mobile numbers

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The 25 largest marine software integration companies based in London, United Kingdom

Ranked by team size

Top 25 of 87 marine software integration companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to marine software integration 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	SDSD	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	n/a	681 contacts →
	Strong evidence “SDSD - Supporting Maritime Professionals since 1983 Software innovation to the Maritime industry for more than 30 years.” Source: RevenueBase Database · checked Sep 13, 2026
2	Oneocean	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	295 contacts →
	Partial evidence “Welcome to OneOcean: the ocean’s digital ecosystem and trusted partner for maritime businesses worldwide.” Source: RevenueBase Database · checked Sep 13, 2026
3	Pole Star Global	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	183 contacts →
	Partial evidence “Pole Star Global is a maritime intelligence and technology solutions company, focusing on reducing risk and optimising trade efficiency.” Source: RevenueBase Database · checked Sep 13, 2026
4	Ninety Percent Of Everything 90poe	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	161 contacts →
	Partial evidence “Creating clarity, control and confidence for modern maritime operations with OpenOcean STUDIO.” Source: RevenueBase Database · checked Sep 13, 2026
5	SEA	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	146 contacts →
	Strong evidence “As the leading independent provider of commercial software for global maritime trade, we’re unleashing the power of data to help drive sustainable shipping.” Source: RevenueBase Database · checked Sep 13, 2026
6	Ulysses Systems	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	78 contacts →
	Strong evidence “Ulysses Systems is a leading marine industry provider of enterprise software.” Source: RevenueBase Database · checked Sep 13, 2026
7	MARLO	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	36 contacts →
	Partial evidence “Marlo is a maritime ERP platform built exclusively for the shipping industry-helping vessel owners, operators, and commercial managers run their entire business from one system.” Source: RevenueBase Database · checked Sep 13, 2026
8	Waypoint Global	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	32 contacts →
	Indirect evidence “Waypoint Global operates across Europe, the Americas, the Middle East and Asia providing consultancy services and staffing project solutions to niche vertical markets and in…” Source: RevenueBase Database · checked Sep 13, 2026
9	Solis Marine	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	29 contacts →
	Partial evidence “Solis Marine was established in 2012 to provide independent expert technical services to the shipping and wider maritime industries.” Source: RevenueBase Database · checked Sep 13, 2026
10	London Marine Consultants LMC	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	27 contacts →
	Partial evidence “London Marine Consultants (LMC) specialises in the engineering design and provision of mooring and subsea systems for FPSOs, FSRUs, FLNGs and FSOs, Floating Wind, Tidal and Wave…” Source: RevenueBase Database · checked Sep 13, 2026
11	Harland & Wolff	Partial evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
12	TMC Marine	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	22 contacts →
	Partial evidence “TMC, a Bureau Veritas Group Company and leading international marine consultancy, has been providing advice and support to the marine and offshore energy industries since 1979.” Source: RevenueBase Database · checked Sep 13, 2026
13	Marino Tech Services	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	19 contacts →
	Strong evidence “Marino Tech Services have been an active provider in the maritime software space over the past 25 years with the rich legacy of delivering innovative ship management solutions.” Source: RevenueBase Database · checked Sep 13, 2026
14	PAC Ocean Solutions Limited	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	13 contacts →
	Partial evidence “Leading Marine Services Provider, Specializing In Ship Repairs, Maintenance, and Innovative Maritime Solutions.” Source: RevenueBase Database · checked Sep 13, 2026
15	Proteus Professionals	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Partial evidence “Proteus Professionals is comprised of incredibly talented and qualified individuals who are passionate about the marine industry, and who’ve devoted their lives to sailing and…” Source: RevenueBase Database · checked Sep 13, 2026
16	Ocean Marine	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Partial evidence “Ocean Marine \| Established 2012 Based in OBHUR, Jeddah, Ocean Marine is a leading supplier of marine spares, equipment, and safety products in the Kingdom of Saudi Arabia.” Source: RevenueBase Database · checked Sep 13, 2026
17	Tigris	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	9 contacts →
	Partial evidence “Tigris Systems transforms complex maritime logistics through intelligent data solutions.” Source: RevenueBase Database · checked Sep 13, 2026
18	A2 Maritime	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Indirect evidence “We will not over-promise or under-deliver.” Source: RevenueBase Database · checked Sep 13, 2026
19	CSO Shipbrokers	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Partial evidence “Part of the CSO Marine Group, CSO Shipbrokers is a ship brokerage and marine consultancy, focused on providing solutions to the Offshore Renewables, Transport & Installation and…” Source: RevenueBase Database · checked Sep 13, 2026
20	Shipzone	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	7 contacts →
	Partial evidence “We are a maritime technology company connecting ship spares, stores and provisions to vessels through an innovative platform with proprietary technology.” Source: RevenueBase Database · checked Sep 13, 2026
21	Seadock Marine Agencies LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial evidence “SeaDock Marine Agencies, established in 2015, is an international maritime solutions provider with offices in London and Piraeus and a global network of trusted partners and…” Source: RevenueBase Database · checked Sep 13, 2026
22	Teraom	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial evidence “Marine Energy and Technology group, who can assist operational, commercial, and technical lead on sustainable development with geodata gathering and managing geo-data…” Source: RevenueBase Database · checked Sep 13, 2026
23	Turquoise Marine Services	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Partial evidence “We are a marine consultancy and offshore engineering company that builds up on the best industry practice with innovative solutions.” Source: RevenueBase Database · checked Sep 13, 2026
24	Navalmartin	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	5 contacts →
	Partial evidence “Navalmartin is a leading multidisciplinary firm of marine professionals offering innovative yacht design, marine consultancy and technical expertise globally.” Source: RevenueBase Database · checked Sep 13, 2026
25	Vault Subsea	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	5 contacts →
	Partial evidence “We protect, enhance and maintain critical marine infrastructure below the water.” Source: RevenueBase Database · checked Sep 13, 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 software integration 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 software integration companies.
Partial evidence: Its own public description names part of marine software integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine software integration 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 87 marine software integration companies based in London, United Kingdom

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Marine software integration companies based in London, United Kingdom at a glance

As of Sep 13, 2026

12.7%Verified-email coverage

5.9%Mobile-number coverage

43.7Average contacts per company

1-10Median size (employees)

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

3860–30

8331–60

661–90

090–180

6180+

Company record updated

Median 78.0d

00–30

1,19131–60

2,03061–90

43790–180

144180+

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 software integration 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 London, United Kingdom whose own description of what they do matches “marine software integration 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 software integration 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 software integration companies, and records with no verified work email. Companies headquartered outside London 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, 481 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 13, 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 software integration companies by metro in the United Kingdom

Marine software integration companies in Southampton33

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 software integration 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 software integration companies are there based in London, United Kingdom?

RevenueBase identified 87 marine software integration companies headquartered in London, 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?

SDSD, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most marine software integration companies?

London leads the United Kingdom with 87 headquartered companies, followed by Southampton (33) and Aberdeen (22).

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 481 verified decision-maker contacts tracked across these 87 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 13, 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.