Company lists · Data verified August 2026

Top 25 Actuarial consulting firms based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 76 companies tracked

There are 76 actuarial consulting firms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 3,149 professional contacts across them, including 1,673 with verified work emails and 481 with mobile numbers. London is the largest hub.

This list covers actuarial consulting firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

76Companies

3,149Contacts tracked

1,673Verified emails

481Mobile numbers

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The 25 largest actuarial consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 76 actuarial consulting firms based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Aptia Group	London	1,001-5,000	1,921	1,058
2	Mercer UK	London	10001+	334	155
3	Marshberry	London	201-500	219	150
4	APR	London	51-200	90	64
5	Camelot	London	51-200	64	8
6	Learisk	London	51-200	58	8
7	Milliman UK	London	1,001-5,000	57	40
8	Lloyd & Partners Limited	London	201-500	55	11
9	Nigel Sloam & CO	London	11-50	35	30
10	Broadstone Regulatory & Risk Advisory Limited	London	11-50	30	14
11	Ainsurco	London	11-50	28	16
12	Star Actuarial Futures	London	11-50	19	18
13	Otter Audit And Consultancy Services LTD	London	11-50	17	12
14	Montagu West	London	1-10	16	6
15	Turnstone Insurance & Reinsurance Services	London	11-50	15	11
16	Bolton Associates	London	1-10	13	11
17	Data Symphony	London	11-50	9	5
18	Pioneer Underwriters	London	51-200	8	3
19	TBIAS	London	1-10	8	3
20	Marcuson Consulting LTD	London	11-50	7	6
21	Hymans Robertson LLP	London	201-500	7	5
22	Leadenhall Analytics	London	11-50	6	4
23	Proteus Consulting LLP	London	1-10	6	2
24	Angelica Solutions Services	London	1-10	5	4
25	Solvency2actuarial	London	1-10	3	2

Showing 25 of 76 actuarial consulting firms based in London, United Kingdom

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Actuarial consulting firms based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 76 HQs

481Contacts with mobile numbers

10Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Actuarial consulting firms by metro in the United Kingdom

Metro	Companies
Actuarial consulting firms in London	76
Actuarial consulting firms in Birmingham	5
Actuarial consulting firms in Manchester	4
Actuarial consulting firms in Bristol	3
Actuarial consulting firms in Edinburgh	3
Actuarial consulting firms in Reigate	3
Actuarial consulting firms in Surrey	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “actuarial consulting firms”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
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: Contact records re-verify on a rolling cadence; 10 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many actuarial consulting firms are there based in London, United Kingdom?

There are 76 actuarial consulting firms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

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 consulting firms?

London leads with 76 headquartered companies, followed by Birmingham (5) and Manchester (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 1,673 verified decision-maker contacts tracked across these 76 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.