Company lists · Data refreshed September 2026

Top 25 Maritime communication systems suppliers based in the United Kingdom

Name: Maritime communication systems suppliers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 104 companies tracked

RevenueBase identified 104 maritime communication systems suppliers headquartered in the United Kingdom as of September 2026 and tracks 1,431 professional contacts across them, including 624 with verified work emails. London is the largest hub.

This list covers maritime communication systems suppliers 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

104Companies

1,431Contacts tracked

624Verified emails

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The 25 largest maritime communication systems suppliers based in the United Kingdom

Ranked by team size

Top 25 of 104 maritime communication systems suppliers 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 communication systems suppliers: 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	Sperry Marine	Partial evidence	New Malden, United KingdomHQ checked Sep 20, 2026	201-500	279 contacts →
	Partial evidence “Sperry Marine provides the commercial and defence maritime industry with Navigation Solutions that excel in efficiency, reliability and safety.” Source: RevenueBase Database · checked Sep 20, 2026
2	Nsslglobal	Partial evidence	Redhill, United KingdomHQ checked Sep 20, 2026	201-500	187 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
3	SRT Marine Systems PLC	Strong evidence	Midsomer Norton, United KingdomHQ checked Sep 20, 2026	51-200	129 contacts →
	Strong evidence “SRT Marine Systems PLC is a global leader and innovator in maritime surveillance, intelligence, navigation safety and situational awareness.” Source: RevenueBase Database · checked Sep 20, 2026
4	AST Networks	Partial evidence	Great Yarmouth, United KingdomHQ checked Sep 20, 2026	51-200	124 contacts →
	Partial evidence “AST Networks is a leading satellite communications provider; enabling global connectivity.” Source: RevenueBase Database · checked Sep 20, 2026
5	Satcom Global	Strong evidence	North Shields, United KingdomHQ checked Sep 20, 2026	51-200	71 contacts →
	Strong evidence “Satcom Global is a leading provider of global satellite services to the maritime, land and aero markets, and a trusted supplier of marine and offshore safety systems and…” Source: RevenueBase Database · checked Sep 20, 2026
6	Ocean Signal Limited	Partial evidence	Margate, United KingdomHQ checked Sep 20, 2026	51-200	38 contacts →
	Partial evidence “Ocean Signal products are designed to meet or exceed the technical requirements of the International Maritime Organisation (SOLAS), International Electrotechnical Commission…” Source: RevenueBase Database · checked Sep 20, 2026
7	Gtmaritime	Strong evidence	Warrington, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Strong evidence “Since 1998, we have been providing a range of technology solutions and services for Maritime IT teams helping them manage communications, security, and fleet operations from shore…” Source: RevenueBase Database · checked Sep 20, 2026
8	MJR Power & Automation	Indirect evidence	Thornaby, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “MJR Power & Automation offers a comprehensive range of Marine Electrical Engineering Services including: Marine Electrical Consultancy, Marine Electrical & Automation Design…” Source: RevenueBase Database · checked Sep 20, 2026
9	SMRT	Partial evidence	Anlaby, United KingdomHQ checked Sep 20, 2026	11-50	33 contacts →
	Partial evidence “Part of Wescom Group, sMRT is the world's leading producer of electronic distress signals, through our sMRT range of Maritime Survivor Locating Devices (MSLD).” Source: RevenueBase Database · checked Sep 20, 2026
10	AST Reygar	Indirect evidence	Stoke Gifford, United KingdomHQ checked Sep 20, 2026	1-10	27 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 20, 2026
11	Sirm UK Marine LTD	Indirect evidence	Chelmsford, United KingdomHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 20, 2026
12	Actisense	Partial evidence	Poole, United KingdomHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “Actisense aim to be the installers product of choice by making navigation safer with the most reliable boat electronic systems.” Source: RevenueBase Database · checked Sep 20, 2026
13	Furuno UK Limited	Partial evidence	Hampshire, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “FURUNO (UK) LIMITED is a business supplies and equipment company based out of WEST BUILDING, PENNER ROAD HAVANT, HAMPSHIRE, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
14	Oceanix International	Partial evidence	Surrey, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “Oceanix International is a go-to partner for all maritime bridge equipment and maintenance requirements.” Source: RevenueBase Database · checked Sep 20, 2026
15	AMI Marine LTD	Partial evidence	Southampton, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Welcome to AMI Marine AMI specialise in Bridge Safety and Navigation Systems Products - Voyage Data Recorders - Ship Navigation - BNWAS - Course Recorders - Interfacing - Test…” Source: RevenueBase Database · checked Sep 20, 2026
16	Global Telesat Communications	Indirect evidence	Poole, United KingdomHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “GTC enables businesses and individuals to stay connected anywhere in the world through our voice, data and tracking equipment and services.” Source: RevenueBase Database · checked Sep 20, 2026
17	North East Telecommunications	Partial evidence	Aberdeen, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Established in 1994 to meet the growing North Sea Oil and Gas industry demand, NET Ltd supplies safe, high-quality radio products and services to businesses worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
18	Charity & Taylor, The UK Division Of Aage Hempel Group	Indirect evidence	Great Yarmouth, United KingdomHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect evidence “At Charity & Taylor, our purpose is simple: to keep vessels operating safely, efficiently, and without surprises.” Source: RevenueBase Database · checked Sep 20, 2026
19	Novaco Navigation	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Novaco Navigation is a leading provider of navigational tracking data, services, and products for ships and commercial shipping companies.” Source: RevenueBase Database · checked Sep 20, 2026
20	Hydrosphere UK LTD	Partial evidence	Upper Froyle, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Founded in 1994, Hydrosphere is firmly established as the UK and Ireland’s leading supplier of aids to navigation, providing high quality, reliable and cost-effective solutions to…” Source: RevenueBase Database · checked Sep 20, 2026
21	Cirm Comité International Radio-Maritime	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	10 contacts →
	Strong evidence “CIRM is a non-profit international maritime trade association formed to promote bridge electronic navigation and communication technology for the safety of life at sea.” Source: RevenueBase Database · checked Sep 20, 2026
22	Marine Data Systems	Partial evidence	Newport, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Marine Data Systems Limited, a British multi award-winning manufacturer of marine navigation and control systems for civil, defence and government agencies.” Source: RevenueBase Database · checked Sep 20, 2026
23	Seaharmony	Indirect evidence	Livingston, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “We are delivering intelligent remote services that keep vessels operational, compliant, and competitive in an era of rapid transformation.” Source: RevenueBase Database · checked Sep 20, 2026
24	Boat Electrics & Electronics LTD	Indirect evidence	Irvine, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “BOAT ELECTRICS & ELECTRONICS LIMITED is a marine electrics and electronics company based out of UNIT 4 AILSA BUSINESS PARK KYLE ROAD, IRVINE, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
25	ECDIS	Indirect evidence	Whiteley, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “ECDIS Ltd provide a complete package for seagoing vessels making the transition to digital navigation.” Source: RevenueBase Database · checked Sep 20, 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: maritime communication systems suppliers. 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 maritime communication systems suppliers.
Partial evidence: Its own public description names part of maritime communication systems suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name maritime communication systems suppliers. 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 104 maritime communication systems suppliers based in the United Kingdom

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Maritime communication systems suppliers based in the United Kingdom at a glance

As of Sep 20, 2026

43.6%Verified-email coverage

13.8Average contacts per company

1-10Median size (employees)

9.6%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 104 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 communication systems suppliers, 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 communication systems suppliers”. 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 communication systems suppliers), 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 communication systems suppliers, 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, 624 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.

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 communication systems suppliers, 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 communication systems suppliers are there based in the United Kingdom?

RevenueBase identified 104 maritime communication systems suppliers 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?

Sperry Marine, headquartered in New Malden, tops this list with the largest team on record.

Which city has the most maritime communication systems suppliers?

London leads with 10 headquartered companies, followed by Bristol (5) and Chelmsford (3).

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 624 verified decision-maker contacts tracked across these 104 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.