Company lists · Data refreshed September 2026

Top 25 Commercial marine insurance providers based in the United Kingdom

Name: Commercial marine insurance providers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 158 companies tracked

RevenueBase identified 158 commercial marine insurance providers headquartered in the United Kingdom as of September 2026 and tracks 3,783 professional contacts across them, including 1,316 with verified work emails. London is the largest hub.

This list covers commercial marine insurance providers 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 16, 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 16, 2026 86% judged on-target in blind review

158Companies

3,783Contacts tracked

1,316Verified emails

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The 25 largest commercial marine insurance providers based in the United Kingdom

Ranked by team size

Top 25 of 158 commercial marine insurance providers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to commercial marine insurance providers: 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	Northstandard	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 16, 2026	501-1,000	584 contacts →
	Indirect evidence “The home of NorthStandard updates.” Source: RevenueBase Database · checked Sep 16, 2026
2	SSY	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	501-1,000	449 contacts →
	Indirect evidence “At SSY, we believe that experience matters.” Source: RevenueBase Database · checked Sep 16, 2026
3	Arch Insurance UK Limited	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	201-500	330 contacts →
	Partial evidence “At Arch Insurance, we trade how you want to trade.” Source: RevenueBase Database · checked Sep 16, 2026
4	Newline Group	Partial evidence	London Ec3m 5bn, United KingdomHQ checked Sep 16, 2026	201-500	215 contacts →
	Partial evidence “Newline Group is a market leading specialty insurance group that operates through three underwriting platforms: Newline Syndicate 1218 at Lloyd’s, Newline Insurance Company…” Source: RevenueBase Database · checked Sep 16, 2026
5	W K Webster And CO LTD	Partial evidence	Sidcup, United KingdomHQ checked Sep 16, 2026	201-500	140 contacts →
	Partial evidence “Since 1861, W K Webster & Co Ltd has built up an impressive reputation for excellence in the field of marine & transit claims consultancy worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
6	TT Club	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	80 contacts →
	Partial evidence “TT Club is the international transport and logistics industry’s leading provider of insurance and related risk management services.” Source: RevenueBase Database · checked Sep 16, 2026
7	London P&i	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	71 contacts →
	Partial evidence “London P&I is a leading, globally connected, mutual marine insurer our members can depend on.” Source: RevenueBase Database · checked Sep 16, 2026
8	Moorhouse Group	Indirect evidence	Mid Glamorgan, United KingdomHQ checked Sep 16, 2026	51-200	66 contacts →
	Indirect evidence “Moorhouse Group has recently been acquired by the exciting Lucida Group with our Managing Director, Linda Haggett, leading us forward.” Source: RevenueBase Database · checked Sep 16, 2026
9	Hayes Parsons Insurance Brokers	Strong evidence	Bristol, United KingdomHQ checked Sep 16, 2026	51-200	47 contacts →
	Strong evidence “Hayes Parsons Insurance Brokers is an independent Chartered Insurance Broker specialising in commercial and marine insurance.” Source: RevenueBase Database · checked Sep 16, 2026
10	MIS Marine	Partial evidence	Birmingham, United KingdomHQ checked Sep 16, 2026	51-200	40 contacts →
	Partial evidence “As the industry-leading, global provider of Marine Assurance products and solutions for the shipping and energy sectors, we are committed to providing quality systems and…” Source: RevenueBase Database · checked Sep 16, 2026
11	Lochain Patrick Insurance Brokers	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “Founded in 1987, Lochain Patrick, a division of Burns & Wilcox Global solutions, is a highly respected, expert and experienced leading firm of insurance brokers.” Source: RevenueBase Database · checked Sep 16, 2026
12	The Meco Group	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	33 contacts →
	Strong evidence “Marine insurance delivered properly.” Source: RevenueBase Database · checked Sep 16, 2026
13	VAN Ameyde Marine UK	Partial evidence	Hull, United KingdomHQ checked Sep 16, 2026	11-50	32 contacts →
	Partial evidence “McAuslands began as McAusland Turner, a UK marine surveying and consulting firm, back in The company is the oldest Marine Surveying and Consulting firm in continuous operation in…” Source: RevenueBase Database · checked Sep 16, 2026
14	Braemar Technical Services Marine	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	30 contacts →
	Strong evidence “AqualisBraemar’s Technical Division provides independent technical expertise and analysis to the marine, energy and insurance sectors on a global basis.” Source: RevenueBase Database · checked Sep 16, 2026
15	UCM Global	Partial evidence	Ipswich, United KingdomHQ checked Sep 16, 2026	51-200	30 contacts →
	Partial evidence “UCM provides risk management services to automotive manufacturers and their marine insurers along with in-life vehicle fleet operators.” Source: RevenueBase Database · checked Sep 16, 2026
16	Aspect	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “Re)insurance for tougher risks.” Source: RevenueBase Database · checked Sep 16, 2026
17	AMS Global Group	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “We are an independent company, owned and operated by directors with extensive experience in the marine industry.” Source: RevenueBase Database · checked Sep 16, 2026
18	Navium Marine Limited	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	1-10	25 contacts →
	Partial evidence “Navium started trading in May 2021 and was formed as a result of a partnership between Clive Washbourn (CEO), Pine Walk Capital Limited, and Fidelis Insurance Holdings Limited.” Source: RevenueBase Database · checked Sep 16, 2026
19	Reason Global Insurance	Partial evidence	Brighton, United KingdomHQ checked Sep 16, 2026	11-50	24 contacts →
	Partial evidence “Reason Global strives to be the most innovative and forward thinking insurance broker in the moving, relocation and self-storage industries.” Source: RevenueBase Database · checked Sep 16, 2026
20	Clearwater Dynamics	Indirect evidence	Poole, United KingdomHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “Clearwater Dynamics delivers industry‑leading technology solutions specialising in IoT connectivity, vessel tracking, and risk‑mitigation.” Source: RevenueBase Database · checked Sep 16, 2026
21	The Fiducia MGA Company Limited	Strong evidence	Leeds, United KingdomHQ checked Sep 16, 2026	11-50	22 contacts →
	Strong evidence “Fiducia MGA specialise in Marine Cargo, Freight Liability, Engineering, Terrorism, Marine Equipment and Combined Liability insurance for UK Regional Brokers.” Source: RevenueBase Database · checked Sep 16, 2026
22	Amphitrite Underwriting Limited	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	21 contacts →
	Strong evidence “We are a specialist marine insurance underwriting agency located in the City of London, and market leaders for marine insurance products which provide innovative, bespoke and…” Source: RevenueBase Database · checked Sep 16, 2026
23	Channing Lucas & Partners LTD	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	11-50	18 contacts →
	Strong evidence “Channing Lucas and Partners Limited (“CLP”), founded in 2007, is an independent marine insurance broker, working with clients throughout the UK and internationally.” Source: RevenueBase Database · checked Sep 16, 2026
24	Pantaenius UK LTD	Partial evidence	Plymouth, United KingdomHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Pantaenius UK Ltd is a leading provider of sail and motor yacht insurance with offices in Plymouth and on the River Hamble in the United Kingdom.” Source: RevenueBase Database · checked Sep 16, 2026
25	GJW Direct	Partial evidence	Manchester, United KingdomHQ checked Sep 16, 2026	51-200	18 contacts →
	Partial evidence “Boat Insurance you can trust.” Source: RevenueBase Database · checked Sep 16, 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: commercial marine insurance providers. 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 commercial marine insurance providers.
Partial evidence: Its own public description names part of commercial marine insurance providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial marine insurance providers. 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 158 commercial marine insurance providers based in the United Kingdom

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Commercial marine insurance providers based in the United Kingdom at a glance

As of Sep 16, 2026

34.8%Verified-email coverage

23.9Average contacts per company

11-50Median size (employees)

44.9%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 158 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 commercial marine insurance providers, 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 “commercial marine insurance providers”. 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 commercial marine insurance providers), 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 commercial marine insurance providers, 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, 1,316 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 16, 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.

Commercial marine insurance providers by metro

Commercial marine insurance providers in London71

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 commercial marine insurance providers, 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 commercial marine insurance providers are there based in the United Kingdom?

RevenueBase identified 158 commercial marine insurance providers 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?

Northstandard, headquartered in Newcastle Upon Tyne, tops this list with the largest team on record.

Which city has the most commercial marine insurance providers?

London leads with 71 headquartered companies, followed by Ipswich (3) and City Of London (2).

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 1,316 verified decision-maker contacts tracked across these 158 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 16, 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.