Company lists · Data refreshed September 2026
Top 25 Actuary companies based in the United Kingdom
RevenueBase identified 437 actuary companies headquartered in the United Kingdom as of September 2026 and tracks 84,548 professional contacts across them, including 32,743 with verified work emails. London is the largest hub.
This list covers actuary companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 actuary companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 63,446 contacts → | ||||
Indirect evidence “We exist to shape decisions for the better, to protect and enrich the lives of people around the world.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,564 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,183 contacts → | ||||
Indirect evidence “Howden Insurance Brokers Ltd is a leading provider of insurance broking, risk consulting, and employee benefits advice.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,892 contacts → | ||||
Indirect evidence “Founded to shape the future of pensions, health, and insurance solutions, Aptia is a leading professional services firm dedicated to simplifying complexity for businesses and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,840 contacts → | ||||
Indirect evidence “We are a specialist professional services and technology firm, working in partnership with leading insurance, highly regulated and global businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,331 contacts → | ||||
Indirect evidence “We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,284 contacts → | ||||
Indirect evidence “XPS Group is a leading UK consulting and administration business specialising in the pensions and insurance sectors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 752 contacts → | ||||
Indirect evidence “The global reinsurance broker and risk, capital, and strategic advisor focused on relentless innovation and superior analytics for top client service.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 498 contacts → | ||||
Indirect evidence “PIB Insurance Brokers (PIB) are a leading insurance broker with access to risk management services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 497 contacts → | ||||
Indirect evidence “Broadstone is a leading, independent UK consultancy delivering expert advice to employers, insurers, pension scheme trustees and lenders.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 411 contacts → | ||||
Strong evidence “The Institute and Faculty of Actuaries (IFoA) is the UK's only chartered professional body dedicated to educating, developing and regulating actuaries based both in the UK and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 398 contacts → | ||||
Indirect evidence “Welcome to the next generation insurance advisory – specialists in business and private client insurance, employee wellbeing, engagement and benefits, and risk management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 385 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 329 contacts → | ||||
Indirect evidence “At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 249 contacts → | ||||
Indirect evidence “Specialist Risk Group (SRG) brings together individuals and businesses from across the world, who are united in our pursuit of specialism.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 185 contacts → | ||||
Indirect evidence “True North Partners LLP is an independent consulting firm based in London, Johannesburg, Frankfurt, Amsterdam and Madrid.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 170 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 141 contacts → | ||||
Indirect evidence “The global reinsurance broker and risk, capital, & strategic advisor focused on relentless innovation & superior analytics for top client service.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 140 contacts → | ||||
Indirect evidence “NFP, an Aon company, helps companies and individuals address today’s most significant Risk Capital and Human Capital challenges.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 138 contacts → | ||||
Indirect evidence “Advanta provides independent loss adjusting, forensic accounting, quantity surveying and risk engineering services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 128 contacts → | ||||
Indirect evidence “HFG is a leading international recruitment consulting firm that provides specialist professionals to leading General Insurance, Life, Reinsurance, Pensions and Management…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 122 contacts → | ||||
Indirect evidence “Simplifying Pensions with Smart Solutions and Practical Expertise At Spence, we're committed to making pensions straightforward.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 99 contacts → | ||||
Indirect evidence “Price Forbes Re is an independent specialist risk strategy and reinsurance broker based in London, Bermuda, and the US.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 97 contacts → | ||||
Strong evidence “RNA Analytics is a global actuarial and risk management consulting firm headquartered in Reigate, United Kingdom.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 91 contacts → | ||||
Indirect evidence “As of April 1, 2019, JLT Specialty is now a part of Marsh & McLennan.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: actuary companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names actuary companies.
- Partial evidence
- Its own public description names part of actuary companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name actuary companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 437 actuary companies based in the United Kingdom
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Actuary companies based in the United Kingdom at a glance
As of Sep 21, 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 437 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among actuary companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “actuary companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names actuary companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among actuary companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 32,743 across the full list. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Actuary companies by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names actuary companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many actuary companies are there based in the United Kingdom?
RevenueBase identified 437 actuary companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
AON, headquartered in London, tops this list with the largest team on record.
Which city has the most actuary companies?
London leads with 191 headquartered companies, followed by Glasgow (8) and Birmingham (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 32,743 verified decision-maker contacts tracked across these 437 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 Smart Search, 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.
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