Company lists · Data refreshed September 2026

Top 25 Specialty insurance brokers based in the United Kingdom

RevenueBase identified 1,387 company matches for specialty insurance brokers associated with the United Kingdom as of September 2026 and tracks 37,796 professional contacts across them, including 19,703 with verified work emails. London is the largest hub.

This list covers company matches for specialty 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 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
1,387Companies
37,796Contacts tracked
19,703Verified emails
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The 25 largest specialty insurance brokers based in the United Kingdom

Ranked by team size
Top 25 of 1,387 company matches for specialty insurance brokers 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, 20261,001-5,0002,183 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 · Sep 18, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,0001,273 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 · Sep 18, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,0001,040 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 · Sep 18, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000766 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 · Sep 18, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000752 contacts →

Exact match

“The global reinsurance broker and risk, capital, and strategic advisor focused on relentless innovation and superior analytics for top client service.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 18, 2026501-1,000727 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000690 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 18, 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 18, 2026 · View company records in RevenueBase
14Exact 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
15Exact 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
16Exact 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
17Exact matchLondon, United KingdomHQ recorded Sep 18, 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 18, 2026 · View company records in RevenueBase
18Exact matchCity Of London, United KingdomHQ recorded Sep 18, 2026501-1,000484 contacts →

Exact match

“As a global specialty insurance broker, Amwins Global Risks – formerly THB – delivers insurance and reinsurance coverage to clients around the world.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 18, 2026501-1,000449 contacts →

Exact match

“At SSY, we believe that experience matters.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500385 contacts →

Exact match

“Acrisure Re is a leading re/insurance intermediary and corporate advisor, offering bespoke and innovative capital, risk and program solutions to clients across the global…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
21Exact matchWitney, United KingdomHQ recorded Sep 18, 20261,001-5,000369 contacts →

Exact match

“Buying Insurance has become a very impersonal experience.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchLondon, United KingdomHQ recorded Sep 18, 20261,001-5,000249 contacts →

Exact match

“Specialist Risk Group (SRG) brings together individuals and businesses from across the world, who are united in our pursuit of specialism.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 18, 202651-200229 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 · Sep 18, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 18, 2026201-500224 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 · Sep 18, 2026 · View company records in RevenueBase

Showing 25 of 1,387 specialty insurance brokers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 19,703 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Specialty insurance brokers based in the United Kingdom at a glance

As of Sep 18, 2026
52.1%Verified-email coverage
27.3Average contacts per company
11-50Median size (employees)
23.8%Largest-city concentration · London
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
646
11-50
503
51-200
142
201-500
31
501-1,000
15
1,001-5,000
34
10001+
6

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 1,387 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 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 19,703 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 brokers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,387 company matches for specialty insurance brokers 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 brokers?

London leads with 330 company records, followed by Manchester (36) and Birmingham (25).

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 19,703 professional contacts with verified work emails tracked across these 1,387 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.

Ready to reach these companies? Verified emails and direct dials for all 1,387 specialty 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.