Company lists · Data refreshed September 2026

Top 25 Admitted insurance carriers based in the United Kingdom

RevenueBase identified 863 company matches for admitted insurance carriers associated with the United Kingdom as of September 2026 and tracks 30,323 professional contacts across them, including 9,567 with verified work emails. London is the largest hub.

This list covers company matches for admitted 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 30, 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 30, 2026 How this list was built
863Companies
30,323Contacts tracked
9,567Verified emails
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The 25 largest admitted insurance carriers based in the United Kingdom

Ranked by team size
Top 25 of 863 company matches for admitted insurance carriers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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 matchGuildford, United KingdomHQ recorded Sep 30, 20265,001-10,0008,339 contacts →

Exact match

“Allianz UK is part of the Allianz Group, one of the world’s leading financial services providers with more than 88 million customers in over 70 different countries.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchStratford Upon Avon, United KingdomHQ recorded Sep 30, 20261,001-5,0005,087 contacts →

Exact match

“At NFU Mutual, we do things differently.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 30, 202610001+1,952 contacts →

Exact match

“We’re all striving to live better lives on many fronts.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
5Exact matchSalford, United KingdomHQ recorded Sep 30, 20261,001-5,000796 contacts →

Exact match

“We’ve been helping people find insurance for 60 years.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 30, 20261,001-5,000672 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 · Sep 30, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
8Exact matchBasingstoke, United KingdomHQ recorded Sep 30, 2026501-1,000552 contacts →

Exact match

“Reassured is the UK’s largest life insurance broker*, supporting thousands of new customers every month to protect what matters most.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 30, 20261,001-5,000498 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact match110 Bishopsgate, United KingdomHQ recorded Sep 30, 2026501-1,000429 contacts →

Exact match

“We launched Policy Expert home insurance back in 2011.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 30, 2026501-1,000423 contacts →

Exact match

“The Thomas Miller Group is an international provider of market leading insurance services.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchWitney, United KingdomHQ recorded Sep 30, 20261,001-5,000369 contacts →

Exact match

“Buying Insurance has become a very impersonal experience.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13Exact matchBournemouth, United KingdomHQ recorded Sep 30, 20261,001-5,000281 contacts →

Exact match

“We’re proud to be one of the UK's largest personal lines insurers, with over 4.5 million customers and employees.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 30, 20261,001-5,000203 contacts →

Exact match

“Jensten is the connected broker of scale, delivering superior outcomes for commercial, corporate and personal clients through our advisory and service capabilities, supported by…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchCambridgeshire, United KingdomHQ recorded Sep 30, 2026201-500186 contacts →

Exact match

“Coversure is one of the UK’s leading independent insurance brokers for business, property and motor insurance.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchManchester, United KingdomHQ recorded Sep 30, 20261,001-5,000185 contacts →

Exact match

“At Co-op Insurance, we help protect the things that matter most to you.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
18Exact matchUnited KingdomHQ recorded Sep 30, 2026201-500174 contacts →

Exact match

“At Academy, we do insurance differently.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchStoke On Trent, United KingdomHQ recorded Sep 30, 2026501-1,000152 contacts →

Exact match

“Autonet Insurance Group has an enviable reputation for providing high quality insurance products.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchManchester, United KingdomHQ recorded Sep 30, 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 30, 2026 · View company records in RevenueBase
21Exact matchNorwich, United KingdomHQ recorded Sep 30, 202651-20091 contacts →

Exact match

“One Broker is an insurance broker based in East Anglia.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 30, 2026201-50076 contacts →

Exact match

“We believe that insurance should be made to measure, and not just one size fits all.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchChipping Norton, United KingdomHQ recorded Sep 30, 202651-20075 contacts →

Exact match

“We are a UK insurance Intermediary providing personal and commercial insurance products.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchBelfast, United KingdomHQ recorded Sep 30, 202651-20073 contacts →

Exact match

“Established in 1978 by current Executive Chairman Robert Willis, Willis Insurance & Risk Management has built a sound reputation within Northern Ireland as a highly professional…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchWorcester, United KingdomHQ recorded Sep 30, 202651-20071 contacts →

Exact match

“SJL Insurance Services is a commercial business Insurance Broker that provides a high-quality service to a national and international client base.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 863 admitted insurance carriers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,567 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Admitted insurance carriers based in the United Kingdom at a glance

As of Sep 30, 2026
31.6%Verified-email coverage
35.1Average contacts per company
1-10Median size (employees)
11.5%Largest-city concentration · London
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
430
11-50
303
51-200
79
201-500
14
501-1,000
6
1,001-5,000
18
5,001-10,000
2
10001+
3

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 863 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 “admitted 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 9,567 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 30, 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.

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

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

RevenueBase identified 863 company matches for admitted 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?

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

Which city has the most admitted insurance carriers?

London leads with 99 company records, followed by Manchester (21) and Nottingham (14).

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 9,567 professional contacts with verified work emails tracked across these 863 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 30, 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.