Company lists · Data refreshed September 2026

Top 25 Insurance brokerages based in the United Kingdom

Name: Insurance brokerages 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 2,045 companies tracked

RevenueBase identified 2,045 company matches for insurance brokerages associated with the United Kingdom as of September 2026 and tracks 44,695 professional contacts across them, including 20,651 with verified work emails. London is the largest hub.

This list covers company matches for insurance brokerages 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 17, 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 17, 2026 How this list was built

2,045Companies

44,695Contacts tracked

20,651Verified emails

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The 25 largest insurance brokerages based in the United Kingdom

Ranked by team size

Top 25 of 2,045 company matches for insurance brokerages based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Howden Insurance Brokers Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	2,183 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 17, 2026 · View company records in RevenueBase
2	BMS Group	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,273 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 17, 2026 · View company records in RevenueBase
3	Miller Insurance Services LLP	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	1,040 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 17, 2026 · View company records in RevenueBase
4	Price Forbes	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	918 contacts →
	Exact match “Our history has made us.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Simply Business	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	848 contacts →
	Exact match “Simply Business is dedicated to making small business insurance simple and accessible.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Marsh Commercial	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	766 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 17, 2026 · View company records in RevenueBase
7	Howden RE	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	752 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 17, 2026 · View company records in RevenueBase
8	Tysers	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	727 contacts →
	Exact match “Tysers is a leading independent Lloyd’s insurance broker.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Chaucer Group	Exact match	City Of London, United KingdomHQ recorded Sep 17, 2026	501-1,000	694 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 17, 2026 · View company records in RevenueBase
10	Howden, The NEW Name For Aston Lark	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	672 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 17, 2026 · View company records in RevenueBase
11	The Ardonagh Group	Exact match	London, United KingdomHQ recorded Sep 17, 2026	10001+	588 contacts →
	Exact match “The Ardonagh Group is the UK’s largest independent insurance distribution platform and a top 15 broker globally.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Mcgill And Partners	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	566 contacts →
	Exact match “Complex risk.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	CNA Hardy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	553 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 17, 2026 · View company records in RevenueBase
14	Reassured	Exact match	Basingstoke, United KingdomHQ recorded Sep 17, 2026	501-1,000	552 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 17, 2026 · View company records in RevenueBase
15	ERS	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	509 contacts →
	Exact match “ERS is the UK's largest specialist motor insurer with an A+ rating.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	PIB Insurance Brokers	Exact match	London, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	498 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 17, 2026 · View company records in RevenueBase
17	Amwins Global Risks	Exact match	City Of London, United KingdomHQ recorded Sep 17, 2026	501-1,000	484 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 17, 2026 · View company records in RevenueBase
18	SSY	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	449 contacts →
	Exact match “At SSY, we believe that experience matters.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Thomas Miller	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	423 contacts →
	Exact match “The Thomas Miller Group is an international provider of market leading insurance services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Acrisure RE	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	385 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 17, 2026 · View company records in RevenueBase
21	A-Plan Insurance	Exact match	Witney, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	369 contacts →
	Exact match “Buying Insurance has become a very impersonal experience.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Arch Insurance UK Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	330 contacts →
	Exact match “At Arch Insurance, we trade how you want to trade.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Alan Boswell Group	Exact match	Norwich, United KingdomHQ recorded Sep 17, 2026	201-500	304 contacts →
	Exact match “Alan Boswell Group is one of the UK's largest independent insurance brokers and one of the largest regional independent financial planners.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Atlanta Group	Exact match	Manchester, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	259 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Adrian Flux Careers	Exact match	Kings Lynn, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	250 contacts →
	Exact match “UK Company Culture Awards 2023 Winner for Best Flexible Working Policy and Best Culture Transformation Initiative.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “insurance brokerages”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,045 insurance brokerages based in the United Kingdom

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Insurance brokerages based in the United Kingdom at a glance

As of Sep 17, 2026

46.2%Verified-email coverage

21.9Average contacts per company

11-50Median size (employees)

22.1%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

978

11-50

710

51-200

224

201-500

501-1,000

1,001-5,000

5,001-10,000

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 2,045 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 “insurance brokerages” 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 20,651 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 17, 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.

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

How many insurance brokerages are there based in the United Kingdom?

RevenueBase identified 2,045 company matches for insurance brokerages 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?

Howden Insurance Brokers Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most insurance brokerages?

London leads with 451 company records, followed by Manchester (46) and Birmingham (31).

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 20,651 professional contacts with verified work emails tracked across these 2,045 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 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 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.