Company lists · Data refreshed September 2026

Top 25 Public liability insurance underwriters based in the United Kingdom

Name: Public liability insurance underwriters based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 204 companies tracked

RevenueBase identified 204 public liability insurance underwriters headquartered in the United Kingdom as of September 2026 and tracks 8,956 professional contacts across them, including 3,523 with verified work emails. London is the largest hub.

This list covers public liability insurance underwriters 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 17, 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 17, 2026 86% judged on-target in blind review

204Companies

8,956Contacts tracked

3,523Verified emails

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The 25 largest public liability insurance underwriters based in the United Kingdom

Ranked by team size

Top 25 of 204 public liability insurance underwriters based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to public liability insurance underwriters: 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	Beazley	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	2,564 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
2	QBE Europe	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At QBE we’re driven by our purpose of enabling a more resilient future.” Source: RevenueBase Database · checked Sep 17, 2026
3	Brown & Brown UK	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	690 contacts →
	Partial evidence “No matter where you are on your growth journey, we can help you find solutions to meet your ever-evolving insurance and risk management needs.” Source: RevenueBase Database · checked Sep 17, 2026
4	Arch Insurance UK Limited	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	330 contacts →
	Partial evidence “At Arch Insurance, we trade how you want to trade.” Source: RevenueBase Database · checked Sep 17, 2026
5	Newline Group	Partial evidence	London Ec3m 5bn, United KingdomHQ checked Sep 17, 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 17, 2026
6	Munich RE Specialty	Partial evidence	Manchester, United KingdomHQ checked Sep 17, 2026	51-200	180 contacts →
	Partial evidence “Munich Re Specialty combines premier specialty expertise, capabilities, and products to offer partners and customers simplified access to a wide range of specialty insurance…” Source: RevenueBase Database · checked Sep 17, 2026
7	Faraday Underwriting Limited	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	107 contacts →
	Indirect evidence “Professional.” Source: RevenueBase Database · checked Sep 17, 2026
8	Miles Smith	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	104 contacts →
	Partial evidence “Specialist Risk Group (SRG) is a group of specialist insurance intermediaries supporting businesses and individuals with complex insurance requirements across the UK, Europe and…” Source: RevenueBase Database · checked Sep 17, 2026
9	JLT Specialty	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	n/a	91 contacts →
	Indirect evidence “As of April 1, 2019, JLT Specialty is now a part of Marsh & McLennan.” Source: RevenueBase Database · checked Sep 17, 2026
10	Kingsbridge Group	Partial evidence	Tewkesbury, United KingdomHQ checked Sep 17, 2026	51-200	78 contacts →
	Partial evidence “Kingsbridge Contractor Insurance offer a comprehensive, competitive and compliant package of business insurance to over limited company contractors, freelancers and independent…” Source: RevenueBase Database · checked Sep 17, 2026
11	Moorhouse Group	Indirect evidence	Mid Glamorgan, United KingdomHQ checked Sep 17, 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 17, 2026
12	Risk Management Partners	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	54 contacts →
	Strong evidence “We have been helping public sector, education and emergency service organisations across the UK with their risk management and insurance needs for over two decades.” Source: RevenueBase Database · checked Sep 17, 2026
13	Global Insurance Management	Partial evidence	Coventry, United KingdomHQ checked Sep 17, 2026	51-200	49 contacts →
	Partial evidence “Global Insurance Management is a premier provider of comprehensive warranties, insurance solutions, and underwriting expertise.” Source: RevenueBase Database · checked Sep 17, 2026
14	Alchemy Underwriting	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	44 contacts →
	Indirect evidence “Our model is built around underwriting excellence, driven by rigorous risk selection, innovative, intelligent underwriting and catastrophe modelling.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hugh J Boswell	Partial evidence	Norwich, United KingdomHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “Hugh J Boswell is a commercial insurance and risk management group based in Carrow Hill, Norwich.” Source: RevenueBase Database · checked Sep 17, 2026
16	Medical & Commercial International Limited	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	37 contacts →
	Partial evidence “Medical & Commercial International (MCI) specialises in underwriting international liability risks.” Source: RevenueBase Database · checked Sep 17, 2026
17	Touchstone Underwriting	Strong evidence	Watford, United KingdomHQ checked Sep 17, 2026	11-50	35 contacts →
	Strong evidence “Touchstone Underwriting are a team of innovative and experienced underwriters, specialising in commercial insurance business including the following areas: 1.” Source: RevenueBase Database · checked Sep 17, 2026
18	Cavendish Munro Professional Risks LTD	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “A Lloyd's broker, specialising in Professional Indemnity Insurance, based in The City.” Source: RevenueBase Database · checked Sep 17, 2026
19	Barbican Insurance Group	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	31 contacts →
	Strong evidence “Barbican Insurance Group underwrites business predominantly through our syndicates at Lloyd’s.” Source: RevenueBase Database · checked Sep 17, 2026
20	Norton Insurance Brokers	Partial evidence	Birmingham, United KingdomHQ checked Sep 17, 2026	11-50	29 contacts →
	Partial evidence “Norton Insurance Brokers has been dedicated for 60 years to helping protect our customers' interests and assets, through quality insurance provision.” Source: RevenueBase Database · checked Sep 17, 2026
21	AURUM	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	29 contacts →
	Strong evidence “aurum motor & aurum home: We underwrite high value home insurance for High Net Worth and Ultra High Net Worth individuals, providing worldwide cover for contents, art and…” Source: RevenueBase Database · checked Sep 17, 2026
22	Brace Underwriting	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Strong evidence “Founded by experienced London underwriters to fill a gap in the market, Brace was born out of clients’ needs for bespoke solutions to non-traditional insurance requirements.” Source: RevenueBase Database · checked Sep 17, 2026
23	Aspect	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Re)insurance for tougher risks.” Source: RevenueBase Database · checked Sep 17, 2026
24	Manchester Underwriting Management	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect evidence “We are a specialty underwriting agency, and part of Pen Underwriting.” Source: RevenueBase Database · checked Sep 17, 2026
25	Navium Marine Limited	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 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: public liability insurance underwriters. 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 public liability insurance underwriters.
Partial evidence: Its own public description names part of public liability insurance underwriters, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public liability insurance underwriters. 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 204 public liability insurance underwriters based in the United Kingdom

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Public liability insurance underwriters based in the United Kingdom at a glance

As of Sep 17, 2026

39.3%Verified-email coverage

43.9Average contacts per company

11-50Median size (employees)

35.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 204 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 public liability insurance underwriters, 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 “public liability insurance underwriters”. 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 public liability insurance underwriters), 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 public liability insurance underwriters, 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, 3,523 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 17, 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.

Public liability insurance underwriters by metro

Public liability insurance underwriters in London73

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 public liability insurance underwriters, 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 public liability insurance underwriters are there based in the United Kingdom?

RevenueBase identified 204 public liability insurance underwriters 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?

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

Which city has the most public liability insurance underwriters?

London leads with 73 headquartered companies, followed by Birmingham (8) and Glasgow (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 3,523 verified decision-maker contacts tracked across these 204 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 17, 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.