Company lists · Data refreshed September 2026

Top 25 Maritime navigation software companies based in the United Kingdom

Name: Maritime navigation software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 115 companies tracked

RevenueBase identified 115 maritime navigation software companies headquartered in the United Kingdom as of September 2026 and tracks 3,030 professional contacts across them, including 917 with verified work emails and 179 with mobile numbers. London is the largest hub.

This list covers maritime navigation software 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

115Companies

3,030Contacts tracked

917Verified emails

179Mobile numbers

Unlock all 115 companies Free signup · no credit card · 500 free credits

The 25 largest maritime navigation software companies based in the United Kingdom

Ranked by team size

Top 25 of 115 maritime navigation software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names maritime navigation software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	SDSDStrong evidence	London, United KingdomHQ checked Sep 5, 2026	n/a	681
	“SDSD - Supporting Maritime Professionals since 1983 Software innovation to the Maritime industry for more than 30 years.” Source: company website · checked Sep 5, 2026
2	RaymarineIndirect evidence	Fareham, United KingdomHQ checked Sep 5, 2026	201-500	448
	“Teledyne Raymarine, a world leader in marine electronics, develops and manufactures the most comprehensive range of electronic equipment for the recreational boating and light…” Source: company website · checked Sep 5, 2026
3	Sperry MarineStrong evidence	New Malden, United KingdomHQ checked Sep 5, 2026	201-500	279
	“Sperry Marine provides the commercial and defence maritime industry with Navigation Solutions that excel in efficiency, reliability and safety.” Source: company website · checked Sep 5, 2026
4	Ninety Percent Of Everything 90poePartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	161
	“Creating clarity, control and confidence for modern maritime operations with OpenOcean STUDIO.” Source: company website · checked Sep 5, 2026
5	SEAStrong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	146
	“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: company website · checked Sep 5, 2026
6	Orca AIPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	132
	“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: company website · checked Sep 5, 2026
7	SRT Marine Systems PLCStrong evidence	Midsomer Norton, United KingdomHQ checked Sep 5, 2026	51-200	129
	“SRT Marine Systems PLC is a global leader and innovator in maritime surveillance, intelligence, navigation safety and situational awareness.” Source: company website · checked Sep 5, 2026
8	SpectecStrong evidence	Manchester, United KingdomHQ checked Sep 5, 2026	51-200	113
	“SpecTec is a market-leading maritime technology company specialising in asset management software.” Source: company website · checked Sep 5, 2026
9	SeebyteStrong evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	51-200	81
	“SeeByte provides clients in the global maritime industry with the most advanced software solutions to enhance the capabilities of their uncrewed systems.” Source: company website · checked Sep 5, 2026
10	Ulysses SystemsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	78
	“Ulysses Systems is a leading marine industry provider of enterprise software.” Source: company website · checked Sep 5, 2026
11	VeriposIndirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	51-200	73
	“Veripos, part of Hexagon, is a global technology leader, pioneering end-to-end assured positioning solutions for the offshore marine oil and gas industry.” Source: company website · checked Sep 5, 2026
12	Coda Octopus ProductsIndirect evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	51-200	41
	“Coda Octopus is a global leader and specialist in underwater technologies including being the patent holder for the real-time 3D sonar, the Echoscope®.” Source: company website · checked Sep 5, 2026
13	Triton Software LTDPartial evidence	Aberdeenshire, United KingdomHQ checked Sep 5, 2026	51-200	28
	“For over 25 years, Triton Software (Formerly Pisys Marine) is one of a leading company in marine domain providing the software, services and data solutions to its customers in the…” Source: company website · checked Sep 5, 2026
14	AST ReygarIndirect evidence	Stoke Gifford, United KingdomHQ checked Sep 5, 2026	1-10	27
	“AST Reygar provides robust and reliable performance monitoring and control solutions for both crewed and uncrewed vessels, of all sizes and functions, in the complex marine…” Source: company website · checked Sep 5, 2026
15	Clearwater DynamicsIndirect evidence	Poole, United KingdomHQ checked Sep 5, 2026	11-50	24
	“Clearwater Dynamics delivers industry‑leading technology solutions specialising in IoT connectivity, vessel tracking, and risk‑mitigation.” Source: company website · checked Sep 5, 2026
16	Sirm UK Marine LTDIndirect evidence	Chelmsford, United KingdomHQ checked Sep 5, 2026	51-200	22
	“SIRM UK is the only organisation anywhere in the world that has been continuously involved in the supply and support of ships’ radio installations since the very inception of…” Source: company website · checked Sep 5, 2026
17	Chersoft LTDIndirect evidence	Sheffield, United KingdomHQ checked Sep 5, 2026	11-50	22
	“CHERSOFT design high quality marine data management solutions.” Source: company website · checked Sep 5, 2026
18	ActisensePartial evidence	Poole, United KingdomHQ checked Sep 5, 2026	11-50	21
	“Actisense aim to be the installers product of choice by making navigation safer with the most reliable boat electronic systems.” Source: company website · checked Sep 5, 2026
19	Marino Tech ServicesStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	19
	“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: company website · checked Sep 5, 2026
20	Poseidon Navigation Services LTDIndirect evidence	Portgordon, United KingdomHQ checked Sep 5, 2026	11-50	16
	“As the shipping industry becomes increasingly more complex and regulated, we know that the ship operators need to choose business partners that they can rely upon.” Source: company website · checked Sep 5, 2026
21	THEYRIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	15
	“Theyr ltd is a London-based technology company specialising in A.I.” Source: company website · checked Sep 5, 2026
22	Furuno UK LimitedIndirect evidence	Hampshire, United KingdomHQ checked Sep 5, 2026	11-50	14
	“FURUNO (UK) LIMITED is a business supplies and equipment company based out of WEST BUILDING, PENNER ROAD HAVANT, HAMPSHIRE, United Kingdom.” Source: company website · checked Sep 5, 2026
23	Marico Marine GroupPartial evidence	Southampton, United KingdomHQ checked Sep 5, 2026	11-50	14
	“Marico Marine is an independent maritime consultancy based in the UK and New Zealand with ocean safety, security and environmental protection at the very heart of what we do.” Source: company website · checked Sep 5, 2026
24	Tymor MarineIndirect evidence	Aberdeen, United KingdomHQ checked Sep 5, 2026	11-50	13
	“Tymor Marine is a naval architecture and marine engineering consultancy headquartered in Aberdeen, with offices in Glasgow and Lafayette.” Source: company website · checked Sep 5, 2026
25	John Lilley & Gillie LTDIndirect evidence	North Shields, United KingdomHQ checked Sep 5, 2026	51-200	13
	“In 1812, John Lilley, aged 24, founded John Lilley and Son in London.” Source: company website · checked Sep 5, 2026

Showing 25 of 115 maritime navigation software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 917 reachable decision-makers.

Free signup · no credit card

See all 115 companies

Maritime navigation software companies based in the United Kingdom at a glance

As of Sep 5, 2026

11-50Median size (employees)

LondonLargest hub · 19 HQs

179Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

869

31–60

61–90

90–180

180+

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 navigation software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 navigation software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among maritime navigation software 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 an evidence 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, 917 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 5, 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.

Frequently asked

How many maritime navigation software companies are there based in the United Kingdom?

RevenueBase identified 115 maritime navigation software 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?

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

Which city has the most maritime navigation software companies?

London leads with 19 headquartered companies, followed by Bristol (5) and Liverpool (5).

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 917 verified decision-maker contacts tracked across these 115 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 115 maritime navigation software companies based in the United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Maritime navigation software companies by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Maritime navigation software companies lists · New lists

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.