Company lists · Data refreshed September 2026

Top 25 Marine software developers based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 57 companies tracked

RevenueBase identified 57 marine software developers headquartered in London, United Kingdom as of September 2026 and tracks 4,489 professional contacts across them, including 887 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers marine software developers 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 28, 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 28, 2026 86% judged on-target in blind review

57Companies

4,489Contacts tracked

887Verified emails

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The 25 largest marine software developers based in London, United Kingdom

Ranked by team size

Top 25 of 57 marine software developers based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine software developers: 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	Ocean Infinity	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	714 contacts →
	Indirect evidence “Ocean Infinity is a technology-driven company transforming how ocean operations are carried out.” Source: RevenueBase Database · checked Sep 28, 2026
2	SDSD	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
3	Oneocean	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
4	Pole Star Global	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
5	Ninety Percent Of Everything 90poe	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	161 contacts →
	Partial evidence “Creating clarity, control and confidence for modern maritime operations with OpenOcean STUDIO.” Source: RevenueBase Database · checked Sep 28, 2026
6	SEA	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
7	Orca AI	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	132 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Houlder Limited	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	91 contacts →
	Indirect evidence “Sea.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ulysses Systems	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	78 contacts →
	Strong evidence “Ulysses Systems is a leading marine industry provider of enterprise software.” Source: RevenueBase Database · checked Sep 28, 2026
10	Solis Marine	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
11	Harland & Wolff	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
12	TMC Marine	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
13	Marino Tech Services	Strong evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
14	PAC Ocean Solutions Limited	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
15	Ensemble	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Ensemble Analytics uses machine learning and data analytics to optimise maritime operations.” Source: RevenueBase Database · checked Sep 28, 2026
16	Seadock Marine Agencies LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
17	Teraom	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
18	Turquoise Marine Services	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
19	Navalmartin	Partial evidence	London, United KingdomHQ checked Sep 28, 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 28, 2026
20	Metoceanworks	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “MetOceanWorks is a UK-based consultancy delivering specialised marine weather and oceanographic solutions for offshore and coastal projects worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
21	Compute Maritime	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “To achieve the IMO's ambitious goals for reducing emissions and improving sustainability, the maritime industry requires radical design solutions.” Source: RevenueBase Database · checked Sep 28, 2026
22	Ladar-Ai LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “At Ladar-AI Limited, we envision a complete transformation of the global maritime transport industry with swift adoption of break-through, automated ship collision avoidance and…” Source: RevenueBase Database · checked Sep 28, 2026
23	Inesse Corporation LTD	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “INESSE CORPORATION LTD is a mechanical or industrial engineering company based out of 3 GOWER STREET 1ST FLOOR, LONDON, United Kingdom.” Source: RevenueBase Database · checked Sep 28, 2026
24	Zeewarriors	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Zeewarriors is a Marine Specialists company, formed to provide a complete marine service to its customers.” Source: RevenueBase Database · checked Sep 28, 2026
25	Salt Technologies LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We are an innovative marine and offshore communication company with a unique blend of expert industry veterans, new wave engineers and visual artists from the digital generation.” Source: RevenueBase Database · checked Sep 28, 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 developers. 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 developers.
Partial evidence: Its own public description names part of marine software developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine software developers. 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 57 marine software developers based in London, United Kingdom

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Marine software developers based in London, United Kingdom at a glance

As of Sep 28, 2026

19.8%Verified-email coverage

78.8Average contacts per company

1-10Median size (employees)

Sep 28, 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 across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 57 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 software developers, 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 developers”. 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 developers), 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 developers, 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, 887 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 28, 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 developers by metro in the United Kingdom

Marine software developers in Southampton30

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 developers, 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 developers are there based in London, United Kingdom?

RevenueBase identified 57 marine software developers 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?

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

Which city in the United Kingdom has the most marine software developers?

London leads the United Kingdom with 57 headquartered companies, followed by Southampton (30) and Aberdeen (12).

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 887 verified decision-maker contacts tracked across these 57 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 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 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.