Company lists · Data refreshed 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 Data refreshed Aug 30, 2026 76 companies tracked

RevenueBase identified 76 actuarial consulting firms headquartered in London, United Kingdom as of August 2026 and 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 30, 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 RevenueBase Smart Search rating on every row Refreshed Aug 30, 2026 86% judged on-target in blind review

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 refreshed Aug 30, 2026. RevenueBase Smart Search rates how each company's information relates to actuarial consulting firms: 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 Kingdom	1,001-5,000	1,921 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 Aug 30, 2026
2	Mercer UK	Indirect evidence	London, United Kingdom	10001+	334 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 Aug 30, 2026
3	Marshberry	Partial evidence	London, United Kingdom	201-500	219 contacts →
	Partial evidence “MarshBerry – Helping Clients Learn, Improve & Realize Value MarshBerry is a global leader in investment banking and consulting dedicated to helping insurance brokerages, and firms…” Source: RevenueBase Database · checked Aug 30, 2026
4	APR	Partial evidence	London, United Kingdom	51-200	90 contacts →
	Partial evidence “APR offers high-quality actuarial solutions to financial institutions in the form of on-site support, consultancy and training services, providing additional capacity and…” Source: RevenueBase Database · checked Aug 30, 2026
5	Camelot	Indirect evidence	London, United Kingdom	51-200	64 contacts →
	Indirect evidence “We are a network of independent consultants who are ex-C-Suite Execs/Senior Managers who have all been there and done it in top organisations, mainly in insurance but others as…” Source: RevenueBase Database · checked Aug 30, 2026
6	Learisk	Indirect evidence	London, United Kingdom	51-200	58 contacts →
	Indirect evidence “LEA provides engineering services with focus in risk management, loss control and asset assessment (valuations).” Source: RevenueBase Database · checked Aug 30, 2026
7	Milliman UK	Strong evidence	London, United Kingdom	1,001-5,000	57 contacts →
	Strong evidence “Milliman is among the world’s largest independent actuarial and consulting firms.” Source: RevenueBase Database · checked Aug 30, 2026
8	Lloyd & Partners Limited	Partial evidence	London, United Kingdom	201-500	55 contacts →
	Partial evidence “We provide industry-focused consulting, brokerage, and claims advocacy services, and leverage data, technology, and analytics to help reduce our clients’ total cost of risk.” Source: RevenueBase Database · checked Aug 30, 2026
9	Nigel Sloam & CO	Partial evidence	London, United Kingdom	11-50	35 contacts →
	Partial evidence “We are an independent firm of actuaries and consultants, founded in 1979.” Source: RevenueBase Database · checked Aug 30, 2026
10	Broadstone Regulatory & Risk Advisory Limited	Partial evidence	London, United Kingdom	11-50	30 contacts →
	Partial evidence “Broadstone Regulatory & Risk Advisory Ltd is a dedicated team of actuaries and financial services experts who have been helping firms and individuals with their finance, credit…” Source: RevenueBase Database · checked Aug 30, 2026
11	Ainsurco	Strong evidence	London, United Kingdom	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 Aug 30, 2026
12	Star Actuarial Futures	Partial evidence	London, United Kingdom	11-50	19 contacts →
	Partial evidence “Star Actuarial Futures was founded in 2009 to provide leading edge recruitment services to the actuarial market.” Source: RevenueBase Database · checked Aug 30, 2026
13	Otter Audit And Consultancy Services LTD	Indirect evidence	London, United Kingdom	11-50	17 contacts →
	Indirect evidence “Delegated authority specialists providing audit and management consultancy services to Lloyd's and London market insurers.” Source: RevenueBase Database · checked Aug 30, 2026
14	Montagu West	Indirect evidence	London, United Kingdom	1-10	16 contacts →
	Indirect evidence “Montagu West is a consultative contingency recruitment and search firm, successfully delivering on niche assignments throughout the UK and Europe within the Insurance and…” Source: RevenueBase Database · checked Aug 30, 2026
15	Turnstone Insurance & Reinsurance Services	Partial evidence	London, United Kingdom	11-50	15 contacts →
	Partial evidence “TurnStone provides high quality audit, claims and consulting services to clients in the insurance and reinsurance sectors.” Source: RevenueBase Database · checked Aug 30, 2026
16	Bolton Associates	Indirect evidence	London, United Kingdom	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 Aug 30, 2026
17	Data Symphony	Strong evidence	London, United Kingdom	11-50	9 contacts →
	Strong evidence “Data Symphony is a B-BBEE Level 1 actuarial and data consulting firm trusted by some of South Africa's largest and best-known insurers and financial institutions.” Source: RevenueBase Database · checked Aug 30, 2026
18	Pioneer Underwriters	Indirect evidence	London, United Kingdom	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 Aug 30, 2026
19	TBIAS	Indirect evidence	London, United Kingdom	1-10	8 contacts →
	Indirect evidence “TBIAS provides business insurance advice and management solutions, servicing insurance risk managers of corporations and leaders of insurance businesses.” Source: RevenueBase Database · checked Aug 30, 2026
20	Marcuson Consulting LTD	Strong evidence	London, United Kingdom	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 Aug 30, 2026
21	Hymans Robertson LLP	Indirect evidence	London, United Kingdom	201-500	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 30, 2026
22	Leadenhall Analytics	Partial evidence	London, United Kingdom	11-50	6 contacts →
	Partial evidence “Leadenhall Analytics is a specialist consultancy providing actuarial and exposure management expertise to the London Market.” Source: RevenueBase Database · checked Aug 30, 2026
23	Proteus Consulting LLP	Strong evidence	London, United Kingdom	1-10	6 contacts →
	Strong evidence “Proteus Consulting provides actuarial consultancy services and software solutions to the insurance industry.” Source: RevenueBase Database · checked Aug 30, 2026
24	Angelica Solutions Services	Indirect evidence	London, United Kingdom	1-10	5 contacts →
	Indirect evidence “At Angelica Solutions, we use data to solve complex insurance problems.” Source: RevenueBase Database · checked Aug 30, 2026
25	Solvency2actuarial	Partial evidence	London, United Kingdom	1-10	3 contacts →
	Partial evidence “We are a specialist consultancy, offering a wide range of actuarial services.” Source: RevenueBase Database · checked Aug 30, 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of actuarial consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name actuarial consulting firms. 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 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 30, 2026

53.1%Verified-email coverage

15.3%Mobile-number coverage

41.4Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Aug 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 1,673 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 August 30, 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 consulting firms by metro in the United Kingdom

Actuarial consulting firms in London76

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 consulting firms, 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 consulting firms are there based in London, United Kingdom?

RevenueBase identified 76 actuarial consulting firms headquartered in London, United Kingdom as of August 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 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 refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 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.