Company lists · Data refreshed September 2026
Top 25 Casualty insurance underwriting companies based in the United Kingdom
RevenueBase identified 49 company matches for casualty insurance underwriting companies associated with the United Kingdom as of September 2026 and tracks 5,885 professional contacts across them, including 2,511 with verified work emails. London is the largest hub.
This list covers company matches for casualty 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.
The 25 largest casualty insurance underwriting companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,564 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 15, 2026 · View company records in RevenueBase | |||||
| 2 | 1,343 contacts → | ||||
Exact match “At QBE we’re driven by our purpose of enabling a more resilient future.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 423 contacts → | ||||
Exact match “The Thomas Miller Group is an international provider of market leading insurance services.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 4 | 215 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 | |||||
| 5 | 107 contacts → | ||||
Exact match “Professional.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 6 | 104 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 15, 2026 · View company records in RevenueBase | |||||
| 7 | 44 contacts → | ||||
Exact match “Our model is built around underwriting excellence, driven by rigorous risk selection, innovative, intelligent underwriting and catastrophe modelling.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 8 | 40 contacts → | ||||
Exact match “Ascot Underwriting Ltd.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 9 | 37 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 | |||||
| 10 | 31 contacts → | ||||
Exact match “Barbican Insurance Group underwrites business predominantly through our syndicates at Lloyd’s.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “Re)insurance for tougher risks.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 16 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 15 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 | |||||
| 14 | 12 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 | |||||
| 15 | 11 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 | |||||
| 16 | 10 contacts → | ||||
Exact match “HI Commercial is a commercial insurance broker formed in 2019, based at the Bridgehead Business Park in Hessle.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 8 contacts → | ||||
Exact match “In insurance, risk management helps control the cost of property and liability claims and therefore has a crucial role to play in improving financial performance.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 7 contacts → | ||||
Exact match “At W/R/B Underwriting, we take a proactive approach to meeting clients’ business needs in an ever-changing marketplace.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 19 | 6 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 | |||||
| 20 | 5 contacts → | ||||
Exact match “Actus Insurance has been founded by Sam Leeder and Paul Taylor who have over 30 years experience in commercial insurance.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Commercial Insurance and Risk Management providers.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 4 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 | |||||
| 23 | 4 contacts → | ||||
Exact match “ViVet is an insurance underwriter that provides inventive solutions for speciality risks originating within new technological sectors.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 25 | 3 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 | |||||
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 “casualty insurance underwriting companies”. 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 49 casualty insurance underwriting companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 2,511 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Casualty insurance underwriting companies based in the United Kingdom at a glance
As of Sep 15, 2026Companies by employee count
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 49 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 “casualty 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 2,511 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 “casualty insurance underwriting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many casualty insurance underwriting companies are there based in the United Kingdom?
RevenueBase identified 49 company matches for casualty 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?
Beazley tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most casualty insurance underwriting companies?
London leads with 28 company records, followed by Leicester (2) and Aylesford (1).
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 2,511 professional contacts with verified work emails tracked across these 49 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 49 casualty insurance underwriting companies based in the United Kingdom. Start with a free account, no credit card.
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Casualty insurance underwriting companies by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Casualty insurance underwriting companies based in Canada
- Casualty insurance underwriting companies based in France
- Casualty insurance underwriting companies based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
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Company intelligence · public preview
Top 25 casualty insurance underwriting companies based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 49 matching company records for casualty insurance underwriting companies based in the United Kingdom, with 5,885 tracked contacts and 2,511 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 casualty insurance underwriting companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Beazleybeazley.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,564 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  QBE Europeqbeeurope.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,343 contacts → |
“At QBE we’re driven by our purpose of enabling a more resilient future.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Thomas Millerthomasmiller.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 423 contacts → |
“The Thomas Miller Group is an international provider of market leading insurance services.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Newline Groupnewlinegroup.com HQ: London Ec3m 5bn, United KingdomReported employees: 201-500 | London Ec3m 5bn, United Kingdom | 201-500 | Exact match | 215 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Faraday Underwriting Limitedfaraday.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 107 contacts → |
“Professional.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Miles Smithspecialistrisk.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 104 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Alchemy Underwritingalchemyunderwriting.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Our model is built around underwriting excellence, driven by rigorous risk selection, innovative, intelligent underwriting and catastrophe modelling.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Ascot Underwritingascotgroup.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Ascot Underwriting Ltd.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Medical & Commercial International (MCI) specialises in underwriting international liability risks.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Barbican Insurance Groupbarbicaninsurance.comHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 31 contacts → |
“Barbican Insurance Group underwrites business predominantly through our syndicates at Lloyd’s.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Aspectaspect.insureHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Re)insurance for tougher risks.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Markel Global Reinsurancemarkelre.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Mercia Underwriting Solutions LTDmusl.co.uk HQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Amet Insuranceametinsurance.comHQ: Belfast, United KingdomReported employees: 11-50 | Belfast, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Underwriting and Claims Handling Agency based in Belfast, providing bespoke Commercial Motor, Liability & Contractors All Risks insurance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Yutree Underwritingyutree.com HQ: Newmarket, United KingdomReported employees: 11-50 | Newmarket, United Kingdom | 11-50 | Exact match | 11 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HI Commercialhicommercial.co.uk HQ: Hessle, United KingdomReported employees: 1-10 | Hessle, United Kingdom | 1-10 | Exact match | 10 contacts → |
“HI Commercial is a commercial insurance broker formed in 2019, based at the Bridgehead Business Park in Hessle.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Riskstopriskstop.co.uk HQ: Poundbury, United KingdomReported employees: 51-200 | Poundbury, United Kingdom | 51-200 | Exact match | 8 contacts → |
“In insurance, risk management helps control the cost of property and liability claims and therefore has a crucial role to play in improving financial performance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | W R B Underwriting A Berkley Companywrbunderwriting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“At W/R/B Underwriting, we take a proactive approach to meeting clients’ business needs in an ever-changing marketplace.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Platinum Underwriting LTDplatinumunderwriting.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“PLATINUM UNDERWRITING LTD is an insurance company based out of United Kingdom.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Actus Insuranceactusinsurance.co.uk HQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Actus Insurance has been founded by Sam Leeder and Paul Taylor who have over 30 years experience in commercial insurance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Umbrella Insurance Servicesumbrellais.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Commercial Insurance and Risk Management providers.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cobra Network Underwriting CNUcobraunderwriting.co.uk HQ: Surrey, United KingdomReported employees: 11-50 | Surrey, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Cobra Network Underwriting (CNU) is an established underwriting company offering an exclusive range of commercial products.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vivet Limitedvivet.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“ViVet is an insurance underwriter that provides inventive solutions for speciality risks originating within new technological sectors.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Brit Syndicates Limitedbritinsurance.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Arrow Underwriting Agency Limitedarrowuw.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Arrow Underwriting Agency Limited is an Independent Underwriting Consultancy business focused on bringing an innovative, flexible and cost effective approach to transacting…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 49 company matches
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Casualty insurance underwriting companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
49 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 49 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for casualty insurance underwriting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many casualty insurance underwriting companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 49 matching company records, 5,885 tracked contacts and 2,511 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Casualty insurance underwriting companies by geography
Cite this list
RevenueBase Data Team. Top 25 casualty insurance underwriting companies based in the United Kingdom. Snapshot: September 15, 2026. https://revenuebase.ai/companies/casualty-insurance-underwriting-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Casualty insurance underwriting companies based in Canada
- Casualty insurance underwriting companies based in France
- Casualty insurance underwriting companies based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
Company intelligence · public preview
Top 25 casualty insurance underwriting companies based in the United Kingdom
RevenueBase records 49 matching company records for casualty insurance underwriting companies based in the United Kingdom, with 5,885 tracked contacts and 2,511 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 casualty insurance underwriting companies based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Beazleybeazley.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 2,564 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | QBE Europeqbeeurope.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,343 contacts → |
“At QBE we’re driven by our purpose of enabling a more resilient future.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Thomas Millerthomasmiller.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 423 contacts → |
“The Thomas Miller Group is an international provider of market leading insurance services.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Newline Groupnewlinegroup.com HQ: London Ec3m 5bn, United KingdomReported employees: 201-500 | London Ec3m 5bn, United Kingdom | 201-500 | Exact match | 215 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Faraday Underwriting Limitedfaraday.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 107 contacts → |
“Professional.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Miles Smithspecialistrisk.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 104 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Alchemy Underwritingalchemyunderwriting.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Our model is built around underwriting excellence, driven by rigorous risk selection, innovative, intelligent underwriting and catastrophe modelling.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ascot Underwritingascotgroup.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 40 contacts → |
“Ascot Underwriting Ltd.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 37 contacts → |
“Medical & Commercial International (MCI) specialises in underwriting international liability risks.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Barbican Insurance Groupbarbicaninsurance.com HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 31 contacts → |
“Barbican Insurance Group underwrites business predominantly through our syndicates at Lloyd’s.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Aspectaspect.insure HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“Re)insurance for tougher risks.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Markel Global Reinsurancemarkelre.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Mercia Underwriting Solutions LTDmusl.co.uk HQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 15 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Amet Insuranceametinsurance.com HQ: Belfast, United KingdomReported employees: 11-50 | Belfast, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Underwriting and Claims Handling Agency based in Belfast, providing bespoke Commercial Motor, Liability & Contractors All Risks insurance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Yutree Underwritingyutree.com HQ: Newmarket, United KingdomReported employees: 11-50 | Newmarket, United Kingdom | 11-50 | Exact match | 11 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HI Commercialhicommercial.co.uk HQ: Hessle, United KingdomReported employees: 1-10 | Hessle, United Kingdom | 1-10 | Exact match | 10 contacts → |
“HI Commercial is a commercial insurance broker formed in 2019, based at the Bridgehead Business Park in Hessle.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Riskstopriskstop.co.uk HQ: Poundbury, United KingdomReported employees: 51-200 | Poundbury, United Kingdom | 51-200 | Exact match | 8 contacts → |
“In insurance, risk management helps control the cost of property and liability claims and therefore has a crucial role to play in improving financial performance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | W R B Underwriting A Berkley Companywrbunderwriting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“At W/R/B Underwriting, we take a proactive approach to meeting clients’ business needs in an ever-changing marketplace.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Platinum Underwriting LTDplatinumunderwriting.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“PLATINUM UNDERWRITING LTD is an insurance company based out of United Kingdom.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Actus Insuranceactusinsurance.co.uk HQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Actus Insurance has been founded by Sam Leeder and Paul Taylor who have over 30 years experience in commercial insurance.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Umbrella Insurance Servicesumbrellais.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Commercial Insurance and Risk Management providers.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cobra Network Underwriting CNUcobraunderwriting.co.uk HQ: Surrey, United KingdomReported employees: 11-50 | Surrey, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Cobra Network Underwriting (CNU) is an established underwriting company offering an exclusive range of commercial products.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Vivet Limitedvivet.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“ViVet is an insurance underwriter that provides inventive solutions for speciality risks originating within new technological sectors.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Brit Syndicates Limitedbritinsurance.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Arrow Underwriting Agency Limitedarrowuw.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Arrow Underwriting Agency Limited is an Independent Underwriting Consultancy business focused on bringing an innovative, flexible and cost effective approach to transacting…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Casualty insurance underwriting companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
49 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 49 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for casualty insurance underwriting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many casualty insurance underwriting companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 49 matching company records, 5,885 tracked contacts and 2,511 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Casualty insurance underwriting companies by geography
Cite this list
RevenueBase Data Team. Top 25 casualty insurance underwriting companies based in the United Kingdom. Snapshot: September 15, 2026. https://revenuebase.ai/companies/casualty-insurance-underwriting-companies/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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