Company lists · Data refreshed September 2026

Top 25 Liability insurance underwriting companies based in the United Kingdom

RevenueBase identified 43 company matches for liability insurance underwriting companies associated with the United Kingdom as of September 2026 and tracks 585 professional contacts across them, including 274 with verified work emails. London is the largest hub.

This list covers company matches for liability insurance underwriting companies 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 September 15, 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 Sep 15, 2026 How this list was built
43Companies
585Contacts tracked
274Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest liability insurance underwriting companies based in the United Kingdom

Ranked by team size
Top 25 of 43 company matches for liability insurance underwriting companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 15, 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 Ec3m 5bn, United KingdomHQ recorded Sep 15, 2026201-500215 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 · Sep 15, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-5037 contacts →

Exact match

“Medical & Commercial International (MCI) specialises in underwriting international liability risks.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
3Exact matchChelmsford, United KingdomHQ recorded Sep 15, 202611-5025 contacts →

Exact match

“Angel Risk Management Angel Risk Management was formed in 2003 by a group of insurance industry professionals and became part of the AXA XL Group of Companies in April 2010.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
4Exact matchEast Dulwich, United KingdomHQ recorded Sep 15, 202611-5016 contacts →

Exact match

“XS Assure is a specialist underwriter of financial lines risks, including hard-to-place risks.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
5Exact matchBirmingham, United KingdomHQ recorded Sep 15, 202611-5015 contacts →

Exact match

“Underwriting of Commercial Combined and Property Owners risks with ‘A’ rated capacity for both standard and non-standard risks including non-standard construction (Including…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
7Exact matchBelfast, United KingdomHQ recorded Sep 15, 202611-5012 contacts →

Exact match

“Underwriting and Claims Handling Agency based in Belfast, providing bespoke Commercial Motor, Liability & Contractors All Risks insurance.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-5012 contacts →

Exact match

“Syndicate 2525 is a specialist Employer’s and Third Party Liability Lloyd’s insurer.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
9Exact matchNewmarket, United KingdomHQ recorded Sep 15, 202611-5011 contacts →

Exact match

“Yutree Underwriting is a modern, dynamic,independent underwriting agency, specialising in a wide range of commercial insurance products tailored to the needs of brokers and their…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-509 contacts →

Exact match

“Indigo Underwriters is a Lloyd's Coverholder and Underwriting Agency focused exclusively on life, accident, health and worker's compensation insurance, reinsurance and…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
11Exact matchManchester, United KingdomHQ recorded Sep 15, 202611-508 contacts →

Exact match

“Underwriting insurance solutions for the 1 in 5 UK citizens routinely REFUSED: Liability - Motor - Property Cover.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-106 contacts →

Exact match

“PLATINUM UNDERWRITING LTD is an insurance company based out of United Kingdom.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
13Exact matchHalifax, United KingdomHQ recorded Sep 15, 20261-105 contacts →

Exact match

“PII.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
14Exact matchSurrey, United KingdomHQ recorded Sep 15, 202611-504 contacts →

Exact match

“Cobra Network Underwriting (CNU) is an established underwriting company offering an exclusive range of commercial products.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-104 contacts →

Exact match

“Gem Underwriting Agency is a specialist Managing General Agent (MGA) offering liability insurance solutions across the UK.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
16Exact matchWest Yorkshire, United KingdomHQ recorded Sep 15, 20261-104 contacts →

Exact match

“Hathaway & Cope is a wholesale Insurance Broker established in 1982 and are specialist Public, Employers & Excess of Loss Liability scheme providers to Retail Insurance Brokers.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
17Exact matchGuildford, United KingdomHQ recorded Sep 15, 20261-104 contacts →

Exact match

“Kudos is a specialist UK liability adjusting firm providing a high quality personalised service with a reputation for integrity and high professional standards.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-103 contacts →

Exact match

“Forge Underwriting is an underwriting agency focused on select financial and professional lines classes of business on a worldwide basis, including business domiciled in the USA.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-103 contacts →

Exact match

“Arrow Underwriting Agency Limited is an Independent Underwriting Consultancy business focused on bringing an innovative, flexible and cost effective approach to transacting…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-502 contacts →

Exact match

“Troon is a broker only City based underwriting agency, delivering a speedy and slick solution to our brokers so that they can serve their client’s business needs more effectively.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-102 contacts →

Exact match

“StartPoint Executive Risks is a London-based Managing General Underwriter that delivers innovative executive liability solutions including D&O and other related products for…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 15, 202651-2001 contacts →

Exact match

“The Underwriting division within Carrolls is an in-house MGA specialising in a range of product offerings, such as- High Hazard and Contractors Liability - Motorsport Liability -…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-101 contacts →

Exact match

“We are an Underwriting Agency specialising in Public/Product Liability insurance for UK based Manufacturers, Research & Development Organisations and University Spin-Offs.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
24Exact matchRomford, United KingdomHQ recorded Sep 15, 20261-101 contacts →

Exact match

“Folgate underwrites classes such as Property, General Liability, Professional Liability, Directors & Officers and Warranty and binding authorities.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 15, 20261-101 contacts →

Exact match

“SHINC [*1] is a London based MGA specialising in marine liability risks.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase

Showing 25 of 43 liability insurance underwriting companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 274 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Liability insurance underwriting companies based in the United Kingdom at a glance

As of Sep 15, 2026
46.8%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
55.8%Largest-city concentration · London
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
15
51-200
1
201-500
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 43 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 “liability insurance underwriting companies” 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 274 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 September 15, 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.

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 “liability insurance underwriting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many liability insurance underwriting companies are there based in the United Kingdom?

RevenueBase identified 43 company matches for liability insurance underwriting companies associated with the United Kingdom as of September 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?

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

Which city has the most liability insurance underwriting companies?

London leads with 24 company records, followed by Chelmsford (3) and London London (2).

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 274 professional contacts with verified work emails tracked across these 43 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 September 15, 2026.

Ready to reach these companies? Verified emails and direct dials for all 43 liability insurance underwriting companies based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.