Company lists · Data refreshed September 2026

Top 25 Specialty insurance carriers based in the United Kingdom

RevenueBase identified 290 company matches for specialty insurance carriers associated with the United Kingdom as of September 2026 and tracks 15,504 professional contacts across them, including 7,964 with verified work emails. London is the largest hub.

This list covers company matches for specialty insurance carriers 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 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 Sep 18, 2026 How this list was built
290Companies
15,504Contacts tracked
7,964Verified emails
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The 25 largest specialty insurance carriers based in the United Kingdom

Ranked by team size
Top 25 of 290 company matches for specialty insurance carriers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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 Sep 18, 20261,001-5,0002,564 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 · Sep 18, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,0001,343 contacts →

Exact match

“At QBE we’re driven by our purpose of enabling a more resilient future.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,0001,115 contacts →

Exact match

“CFC is a specialist insurance provider, pioneer in emerging risk and market leader in cyber.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000918 contacts →

Exact match

“Our history has made us.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5Exact matchCity Of London, United KingdomHQ recorded Sep 18, 2026501-1,000694 contacts →

Exact match

“Chaucer are a leading specialty (re)insurance group working with brokers, coverholders and clients to protect and support business activities around the world.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 18, 2026501-1,000677 contacts →

Exact match

“Tokio Marine Kiln is a leading international insurer with a reputation for specialist underwriting excellence, great people and innovative products.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500566 contacts →

Exact match

“Complex risk.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 18, 2026501-1,000553 contacts →

Exact match

“CNA Hardy is a leading specialist commercial insurance provider for clients within the Lloyd’s and company markets.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 18, 2026501-1,000509 contacts →

Exact match

“ERS is the UK's largest specialist motor insurer with an A+ rating.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500257 contacts →

Exact match

“In an industry often shaped by legacy and complexity, Inigo was built to be different.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11Exact matchLondon Ec3m 5bn, United KingdomHQ recorded Sep 18, 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 18, 2026 · View company records in RevenueBase
12Exact matchManchester, United KingdomHQ recorded Sep 18, 202651-200180 contacts →

Exact match

“Munich Re Specialty combines premier specialty expertise, capabilities, and products to offer partners and customers simplified access to a wide range of specialty insurance…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500175 contacts →

Exact match

“Markel UK is a specialist insurer and part of a financially strong “A” rated company, serving regional brokers and UK businesses with insurance solutions.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500158 contacts →

Exact match

“Founded in 2008 and based in London, UK, the Nexus Group is a leading, independent, specialty Managing General Agent (MGA) group with a focus on niche insurance classes of…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15Exact matchManchester, United KingdomHQ recorded Sep 18, 202651-200122 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 · Sep 18, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000104 contacts →

Exact match

“Specialist Risk Group (SRG) is a group of specialist insurance intermediaries supporting businesses and individuals with complex insurance requirements across the UK, Europe and…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 18, 202651-20096 contacts →

Exact match

“Specialist MGA providing quality products for niche commercial markets.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 18, 2026n/a91 contacts →

Exact match

“As of April 1, 2019, JLT Specialty is now a part of Marsh & McLennan.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
19Exact matchWalsall, United KingdomHQ recorded Sep 18, 202651-20067 contacts →

Exact match

“Think Insurance is a specialist insurance broker based in the West Midlands, established in 2009, and bringing together years of industry experience.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
20Exact matchMid Glamorgan, United KingdomHQ recorded Sep 18, 202651-20066 contacts →

Exact match

“Moorhouse Group has recently been acquired by the exciting Lucida Group with our Managing Director, Linda Haggett, leading us forward.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 18, 202651-20065 contacts →

Exact match

“In a world of conglomerates, corporations and umbrella organisations, Paragon shines through as a truly specialist insurance broker.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
22Exact matchDudley, United KingdomHQ recorded Sep 18, 202651-20056 contacts →

Exact match

“For over 35 years Footman James has been at the heart of the classic vehicle movement; specialising in both classic car insurance and classic motorcycle insurance.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
23Exact matchGreat Notley, United KingdomHQ recorded Sep 18, 202651-20052 contacts →

Exact match

“Welcome to DOA, an independent, family-run Insurance Intermediary specialising in underwriting insurance products across niche market sectors throughout the UK since 1996.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
24Exact matchBromley, United KingdomHQ recorded Sep 18, 202651-20052 contacts →

Exact match

“Established in 1958, Camberford Underwriting (previously Camberford Law plc) is a highly respected insurance underwriting agency with a history of providing market leading…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 18, 202651-20046 contacts →

Exact match

“First for Specialist - First for Expertise - First for Service First Underwriting offer broker partners the security of a large organisation, but with the agility, expertise and…”

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

Showing 25 of 290 specialty insurance carriers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 7,964 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Specialty insurance carriers based in the United Kingdom at a glance

As of Sep 18, 2026
51.4%Verified-email coverage
53.5Average contacts per company
11-50Median size (employees)
39.3%Largest-city concentration · London
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
118
51-200
33
201-500
11
501-1,000
8
1,001-5,000
11
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 290 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 “specialty insurance carriers” 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 7,964 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 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.

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

How many specialty insurance carriers are there based in the United Kingdom?

RevenueBase identified 290 company matches for specialty insurance carriers 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?

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

Which city has the most specialty insurance carriers?

London leads with 114 company records, followed by Manchester (11) and Birmingham (6).

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 7,964 professional contacts with verified work emails tracked across these 290 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 18, 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.