Company lists · Data refreshed October 2026

Top 25 Marine liability insurance brokers based in the United Kingdom

RevenueBase identified 811 company matches for marine liability insurance brokers associated with the United Kingdom as of October 2026 and tracks 21,878 professional contacts across them, including 11,110 with verified work emails. London is the largest hub.

This list covers company matches for marine liability insurance brokers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 18, 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 RevenueBase SmartSearch · Exact Recorded Oct 18, 2026 How this list was built
811Companies
21,878Contacts tracked
11,110Verified emails
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The 25 largest marine liability insurance brokers based in the United Kingdom

Ranked by team size
Top 25 of 811 company matches for marine liability insurance brokers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0002,651 contacts →

Exact match

“We are a specialty insurer with more than three decades of experience in providing clients with the highest standards of underwriting and claims service worldwide.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0002,331 contacts →

Exact match

“Howden Insurance Brokers Ltd is a leading provider of insurance broking, risk consulting, and employee benefits advice.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0001,336 contacts →

Exact match

“For over four decades, BMS has transformed risk into progress, earning our place as one of the world’s leading insurance and reinsurance brokers.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0001,133 contacts →

Exact match

“Our reputation as the finest advocates in the business comes from our exceptional people delivering exceptional results for over 120 years.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000970 contacts →

Exact match

“Our history has made us.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 18, 2026501-1,000710 contacts →

Exact match

“Tysers is a leading independent Lloyd’s insurance broker.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000625 contacts →

Exact match

“Marsh Commercial, a Marsh business, is the SME and mid market specialist providing tailored commercial insurance placements and comprehensive end-to-end risk management.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000514 contacts →

Exact match

“PIB Insurance Brokers (PIB) are a leading insurance broker with access to risk management services.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 18, 2026501-1,000497 contacts →

Exact match

“At SSY, we believe that experience matters.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 18, 2026201-500342 contacts →

Exact match

“At Arch Insurance, we trade how you want to trade.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000299 contacts →

Exact match

“In April 2022, Aston Lark became part of the Howden Group, with the aim of creating a standout full-service broker, unrivalled in its quality, scale and reach in the UK and…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 18, 202651-200238 contacts →

Exact match

“United Insurance Brokers Limited (UIBL) is an integral part of one of the largest privately-owned independent international insurance and reinsurance brokers headquartered in…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchLondon Ec3m 5bn, United KingdomHQ recorded Oct 18, 2026201-500222 contacts →

Exact match

“Newline Group is a market leading specialty insurance group that operates through three underwriting platforms: Newline Syndicate 1218 at Lloyd’s, Newline Insurance Company…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Oct 18, 2026201-500218 contacts →

Exact match

“James Hallam are one of the UK’s leading, fully independent, brokers and have a reputation for providing superior risk advice and insurance management programmes.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchLiverpool, United KingdomHQ recorded Oct 18, 202651-200182 contacts →

Exact match

“Griffiths & Armour, an Aon company, is a chartered insurance broker that exists to make your world less uncertain.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 18, 202651-200176 contacts →

Exact match

“BPL is the world’s leading independent broker specialising exclusively in credit and political risk insurance (CPRI) for multinational corporations, banks and financial…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 18, 202651-200169 contacts →

Exact match

“We are a dynamic Lloyd's broker who arrange insurance for private individuals and commercial ventures alike.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchSidcup, United KingdomHQ recorded Oct 18, 2026201-500144 contacts →

Exact match

“Since 1861, W K Webster & Co Ltd has built up an impressive reputation for excellence in the field of marine & transit claims consultancy worldwide.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 18, 2026201-500128 contacts →

Exact match

“We are a long-established Lloyd’s broker whose origins date back to the Besso family, an accomplished name in Italian insurance.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchBradford, United KingdomHQ recorded Oct 18, 202651-200127 contacts →

Exact match

“Established in 1919 by an enterprising Scotsman, Thomas Lessels Dallas OBE, TL Dallas has a long and distinguished heritage, providing unparalleled insurance and risk solutions to…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchManchester, United KingdomHQ recorded Oct 18, 202651-200121 contacts →

Exact match

“Bridge Insurance Brokers Limited (Bridge) is a leading independent corporate insurance broker with offices in both Manchester and London.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchBedford, United KingdomHQ recorded Oct 18, 202651-200112 contacts →

Exact match

“M & DH are the specialist in all forms of construction and manufacturing insurance.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchStockport, United KingdomHQ recorded Oct 18, 202651-20097 contacts →

Exact match

“Established as an Independent Broker since 1975 operating from offices in Bristol, Cardiff, Cheshire, Chester, Leeds, London, Manchester, the Midlands and Scotland, we are one of…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 18, 2026201-50094 contacts →

Exact match

“Alesco is a fast-growing and dynamic insurance broker that specialises in energy, construction, terrorism, alternative risk transfer, property, liability and related lines of…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchBirmingham, United KingdomHQ recorded Oct 18, 2026201-50091 contacts →

Exact match

“Our established and experienced team of insurance brokers can help you identify and quantify the precise risks you face, then put in place a suitable range of insurance covers…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 811 marine liability insurance brokers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,110 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine liability insurance brokers based in the United Kingdom at a glance

As of Oct 18, 2026
50.8%Verified-email coverage
27.0Average contacts per company
11-50Median size (employees)
26.6%Largest-city concentration · London
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
359
11-50
323
51-200
78
201-500
20
501-1,000
7
1,001-5,000
14
10001+
2

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 811 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “marine liability insurance brokers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 11,110 professional contacts with verified work emails across the full matched dataset. 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 October 18, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Marine liability insurance brokers by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marine liability insurance brokers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine liability insurance brokers are there based in the United Kingdom?

RevenueBase identified 811 company matches for marine liability insurance brokers associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Beazley tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine liability insurance brokers?

London leads with 216 company records, followed by Manchester (16) and Birmingham (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 11,110 professional contacts with verified work emails tracked across these 811 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 811 marine liability insurance brokers based in the United Kingdom. Start with a free account, no credit card.

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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.