Company lists · Data refreshed September 2026

Top 25 Actuarial services based in London, United Kingdom

Name: Actuarial services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 62 companies tracked

RevenueBase identified 62 actuarial services headquartered in London, United Kingdom as of September 2026 and tracks 4,747 professional contacts across them, including 2,735 with verified work emails and 461 with mobile numbers. London is the largest hub.

This list covers actuarial services headquartered in London, 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 23, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

62Companies

4,747Contacts tracked

2,735Verified emails

461Mobile numbers

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The 25 largest actuarial services based in London, United Kingdom

Ranked by team size

Top 25 of 62 actuarial services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to actuarial services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Aptia Group	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	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 23, 2026
2	Barnett Waddingham	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	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 23, 2026
3	Broadstone	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	501-1,000	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 23, 2026
4	APR	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	88 contacts →
	Strong evidence “Founded in 2006, APR provide actuarial consulting and secondment services to over 45 life and general insurers, as well as other financial sector clients, across the UK, Ireland…” Source: RevenueBase Database · checked Sep 23, 2026
5	Milliman UK	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	56 contacts →
	Strong evidence “Milliman is among the world’s largest independent actuarial and consulting firms.” Source: RevenueBase Database · checked Sep 23, 2026
6	Nigel Sloam & CO	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	35 contacts →
	Strong evidence “We are an independent firm of actuaries and consultants, founded in 1979.” Source: RevenueBase Database · checked Sep 23, 2026
7	Ainsurco	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	28 contacts →
	Strong evidence “AInsurCo \| Actuarial & Insurance Consulting \| Technology-Enabled Insurance Solutions AInsurCo is a specialist insurance consulting and technology firm helping insurers unlock…” Source: RevenueBase Database · checked Sep 23, 2026
8	Star Actuarial Futures	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	19 contacts →
	Strong evidence “Star Actuarial Futures was founded in 2009 to provide leading edge recruitment services to the actuarial market.” Source: RevenueBase Database · checked Sep 23, 2026
9	Capita Pension Solutions	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1,001-5,000	15 contacts →
	Indirect evidence “Your employees are your greatest asset.” Source: RevenueBase Database · checked Sep 23, 2026
10	Bolton Associates	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	13 contacts →
	Indirect evidence “Bolton Associates Consultants are available to speak on the phone or meet in person, to chat about the market, your careers, requirements, and the future!” Source: RevenueBase Database · checked Sep 23, 2026
11	GO Pensions Independent Consultants	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	11 contacts →
	Indirect evidence “Leading independent consulting and management services for the pensions and benefits industry.” Source: RevenueBase Database · checked Sep 23, 2026
12	Wisterm	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	9 contacts →
	Indirect evidence “As an award-winning consulting and insurance management firm, we understand how complex insurance programs can be.” Source: RevenueBase Database · checked Sep 23, 2026
13	K3 Advisory	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	8 contacts →
	Indirect evidence “K3 Advisory is the pension market’s only specialist independent bulk annuity and consolidator advisory business.” Source: RevenueBase Database · checked Sep 23, 2026
14	Pioneer Underwriters	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	51-200	8 contacts →
	Indirect evidence “Pioneer Is a dynamic insurance services organisation providing our partners with advisory solutions across a broad cross section of the industry.” Source: RevenueBase Database · checked Sep 23, 2026
15	Continuous Mortality Investigation	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	8 contacts →
	Strong evidence “The Continuous Mortality Investigation (CMI) carries out research into mortality and morbidity experience and produces practical tools that are widely used by actuaries.” Source: RevenueBase Database · checked Sep 23, 2026
16	Marcuson Consulting LTD	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	7 contacts →
	Strong evidence “Marcuson Consulting are Specialist Actuarial Advisors and Consultants to the Global General Insurance Industry Founded in 2010, we are an independent actuarial advisory firm…” Source: RevenueBase Database · checked Sep 23, 2026
17	Hymans Robertson LLP	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
18	Aspire Independent Financial Planners LLP	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	7 contacts →
	Indirect evidence “ASPIRE INDEPENDENT FINANCIAL PLANNERS LLP is an insurance company.” Source: RevenueBase Database · checked Sep 23, 2026
19	Alpha Growth PLC	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	7 contacts →
	Indirect evidence “Alpha Growth plc is a financial advisory business providing specialist consultancy, advisory, and supplementary services to institutional and qualified investors globally in the…” Source: RevenueBase Database · checked Sep 23, 2026
20	Greycross Partners	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “Independent advisers who make the time to think differently.” Source: RevenueBase Database · checked Sep 23, 2026
21	Spencer Brislen Associates	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	4 contacts →
	Strong evidence “values driven recruitment delivered by Actuarial & Pricing experts Spencer Brislen Associates was established to raise the bar of Actuarial & Pricing recruitment and deliver…” Source: RevenueBase Database · checked Sep 23, 2026
22	Solvency2actuarial	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	3 contacts →
	Strong evidence “We are a specialist consultancy, offering a wide range of actuarial services.” Source: RevenueBase Database · checked Sep 23, 2026
23	T 1	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	3 contacts →
	Strong evidence “t+1 is an actuarial modelling platform used for pricing, reserving and capital calculations.” Source: RevenueBase Database · checked Sep 23, 2026
24	Fairbank Partners	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	11-50	2 contacts →
	Strong evidence “Fairbank Partners is one of the world's leading specialist actuarial recruitment consultancies.” Source: RevenueBase Database · checked Sep 23, 2026
25	Impact Actuarial	Strong evidence	London, United KingdomHQ checked Sep 23, 2026	1-10	2 contacts →
	Strong evidence “Impact Actuarial is a specialized actuarial consultancy working to maximize the social impact of insurance and to create a world with universal access to financial protection.” Source: RevenueBase Database · checked Sep 23, 2026

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: actuarial services. 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 actuarial services.
Partial evidence: Its own public description names part of actuarial services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name actuarial services. 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 62 actuarial services based in London, United Kingdom

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Actuarial services based in London, United Kingdom at a glance

As of Sep 23, 2026

57.6%Verified-email coverage

9.7%Mobile-number coverage

76.6Average contacts per company

1-10Median size (employees)

104.8%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

1,9600–30

74631–60

2561–90

190–180

3180+

Company record updated

Median 75.0d

00–30

45431–60

2,93661–90

1,08490–180

273180+

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 actuarial services, 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 London, United Kingdom whose own description of what they do matches “actuarial services”. 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 actuarial services), 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 actuarial services, and records with no verified work email. Companies headquartered outside London 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, 2,735 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 23, 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.

Actuarial services by metro in the United Kingdom

Actuarial services in London65

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 actuarial services, 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 actuarial services are there based in London, United Kingdom?

RevenueBase identified 62 actuarial services headquartered in London, 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?

Aptia Group, headquartered in London, tops this list with the largest team on record.

Which city has the most actuarial services?

London leads with 65 headquartered companies, followed by Birmingham (5) and Edinburgh (4).

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 2,735 verified decision-maker contacts tracked across these 62 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 23, 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.