Company lists · Data refreshed September 2026

Top 22 Maritime security companies based in the United Kingdom

RevenueBase identified 102 maritime security companies headquartered in the United Kingdom as of September 2026 and tracks 1,616 professional contacts across them, including 215 with verified work emails and 74 with mobile numbers. London is the largest hub.

This list covers maritime security 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
102Companies
1,616Contacts tracked
215Verified emails
74Mobile numbers
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The 22 largest maritime security companies based in the United Kingdom

Ranked by team size
Top 22 of 102 maritime security 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 security 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.
#CompanyHeadquartersEmployeesContacts
1
AmbreyPartial evidence
Hereford, United KingdomHQ checked Sep 5, 202651-200435

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

Source: company website · checked Sep 5, 2026
2
James Fisher FendercarePartial evidence
Norwich, United KingdomHQ checked Sep 5, 20261,001-5,000204

“Shaping the future of maritime.”

Source: company website · checked Sep 5, 2026
3
Viking Maritime GroupPartial evidence
Dover, United KingdomHQ checked Sep 5, 202651-200111

“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…”

Source: company website · checked Sep 5, 2026
4Largs, United KingdomHQ checked Sep 5, 202651-20059

Maritime Craft Services (clyde) Limited is a Maritime company located in Irvine Rd, Largs, United Kingdom.”

Source: company website · checked Sep 5, 2026
5
Securewest InternationalPartial evidence
Plymouth, United KingdomHQ checked Sep 5, 202611-5040

“Securewest is an independent, global risk and security management company supporting clients to succeed in a volatile world, on land and at sea.”

Source: company website · checked Sep 5, 2026
6
Priavo SecurityPartial evidence
London, United KingdomHQ checked Sep 5, 202611-5028

“Priavo Security Group is an established provider of comprehensive security risk management, dedicated to safeguarding individuals, information, assets, and reputation through…”

Source: company website · checked Sep 5, 2026
7Southampton, United KingdomHQ checked Sep 5, 202611-5023

“MarineGuard is recognised as the industry leader for the integration of leading edge technology-based superyacht security.”

Source: company website · checked Sep 5, 2026
8
Regal Maritime SolutionsStrong evidence
Borehamwood, United KingdomHQ checked Sep 5, 202611-5022

“Regal Maritime Solutions has been operating since 2011, providing bespoke security solutions to both merchant and private vessels against acts of piracy in high risk waters…”

Source: company website · checked Sep 5, 2026
9London, United KingdomHQ checked Sep 5, 202611-5019

Maritime & Underwater Security Consultants (MUSC) specialise in counter piracy and ship security, unexploded ordnance disposal, port and supply chain security, high-risk shore-end…”

Source: company website · checked Sep 5, 2026
10London, United KingdomHQ checked Sep 5, 202651-20016

“HR Maritime delivers hybrid maritime security built on intelligence, technology, and operational force.”

Source: company website · checked Sep 5, 2026
11
Marico Marine GroupStrong evidence
Southampton, United KingdomHQ checked Sep 5, 202611-5014

“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
12Portsmouth, United KingdomHQ checked Sep 5, 20261-1013

“Isca Maritime Security Services Ltd provides crewing and security services to cruise lines, ferry companies and yachts.”

Source: company website · checked Sep 5, 2026
13Nottinghamshire, United KingdomHQ checked Sep 5, 202651-20013

“Zeal GMS Ltd is a UK maritime security company, providing peace of mind and security to both commercial and private clients trying to come to terms with the ever increasing threat…”

Source: company website · checked Sep 5, 2026
14
Miris InternationalPartial evidence
Liverpool, United KingdomHQ checked Sep 5, 20261-1012

“MIRIS is a leading provider of security and risk management services.”

Source: company website · checked Sep 5, 2026
15
Secure A Ship LTDStrong evidence
Banbury, United KingdomHQ checked Sep 5, 202611-5010

“Secure a Ship Ltd provides maritime security solutions in the designated High Risk Areas throughout the Gulf of Aden, East and West African coastlines, Indian Ocean, Gulf of Oman…”

Source: company website · checked Sep 5, 2026
16Liverpool, United KingdomHQ checked Sep 5, 20261-109

“Marlan Maritime Technologies and CoastSense systems protect people, places and profits in the maritime and coastal environments.”

Source: company website · checked Sep 5, 2026
17
Brit Alliance LTDPartial evidence
Aylesbury, United KingdomHQ checked Sep 5, 20261-106

“Brit Alliance: Raising Standards in International Security and Risk Management We are dedicated to making a positive impact in the world of security and risk management – both on…”

Source: company website · checked Sep 5, 2026
18
DA Gama MaritimePartial evidence
Chichester, United KingdomHQ checked Sep 5, 20261-106

“Da Gama Maritime was established in 2009 by professional mariners who are passionate about enhancing safety at sea.”

Source: company website · checked Sep 5, 2026
19
Palaemon MaritimeIndirect evidence
Glasgow, United KingdomHQ checked Sep 5, 20261-105

“We support the shipping industry’s transition from improvised deterrence to engineered boarding prevention.”

Source: company website · checked Sep 5, 2026
20Paisley, United KingdomHQ checked Sep 5, 20261-101

“A marine service provider, owned and operated by an experienced skipper/marine manager, supporting commercial and private clients with a range of marine services.”

Source: company website · checked Sep 5, 2026
21
G.U11Strong evidence
Cambridge, United KingdomHQ checked Sep 5, 20261-101

“Machine learning for the maritime security industry”

Source: company website · checked Sep 5, 2026
22
Ocean Risk ManagementPartial evidence
Glasgow, United KingdomHQ checked Sep 5, 2026n/a1

“Ocean Risk Management provides Global Marine, Engineering and Security consultancy to the shipping and offshore industries.”

Source: company website · checked Sep 5, 2026

Showing 22 of 102 maritime security companies based in the United Kingdom

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Maritime security companies based in the United Kingdom at a glance

As of Sep 5, 2026
11-50Median size (employees)
LondonLargest hub · 22 HQs
74Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
43
11-50
33
51-200
19
201-500
1
1,001-5,000
2

Verified emails by last verification

0–30
208
31–60
7
61–90
0
90–180
0
180+
0

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 security 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 security 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 security 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, 215 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 security companies are there based in the United Kingdom?

RevenueBase identified 102 maritime security 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?

Ambrey, headquartered in Hereford, tops this list with the largest team on record.

Which city has the most maritime security companies?

London leads with 22 headquartered companies, followed by Blackpool (4) and Glasgow (4).

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 215 verified decision-maker contacts tracked across these 102 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.

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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.