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Actuarial Services Companies in the UK: 16 Active Firms (2026)
Actuarial services companies in the UK model financial risk, pensions, insurance liabilities and capital requirements for regulated organisations.
Buying centres tend to sit in insurance finance, pensions governance and prudential risk teams, rather than general procurement. Buyers are usually insurers, pension scheme trustees, financial services groups, public bodies and professional services firms that need specialist judgement on liabilities, assumptions and reporting. Engagements skew towards advisory projects, retained review work and model validation, with partner-led delivery and qualified actuarial input carrying more weight than platform features. The commercial pattern is therefore closer to expert consulting than high-volume outsourcing, with small and mid-sized practices selling trust, sign-off comfort and repeatable technical process.
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The UK cohort is small, with 16 actively trading actuarial services firms. Reported headcount totals 273, pointing to teams built around qualified modelling, pensions and insurance-reserving staff rather than large delivery centres. That employment footprint fits the service model: a small number of practices have moved beyond the micro-consultancy stage, while many appear to serve recurring client needs through partner-led assignments, technical reviews and regulatory reporting support. Revenue concentration is likely to sit with practices handling insurer reserving, pension funding and capital work.
Regulatory exposure sits mainly with the clients rather than the adviser, but it still shapes the work. Insurers need actuarial input for reserving, capital adequacy and governance under prudential, conduct and reporting regimes. Pension scheme work is also shaped by trustee duties, funding reviews and audit scrutiny. The result is a market where credibility, documentation and professional judgement matter more than sales reach; small consultancies can compete when they hold specialist knowledge in longevity, reserving or public-sector scheme work.
Demand appears likely to remain tied to insurers’ capital work, pension scheme governance and advisory reviews triggered by changes in funding assumptions, longevity expectations and audit scrutiny. Growth tends to be constrained by scarce qualified labour and the credibility needed to sign off specialist work, so the market is unlikely to behave like a volume consultancy category. More routine modelling may move into standardised tools, but clients still need independent judgement when assumptions are disputed or liabilities carry regulatory consequences.
16
Active firms
2026
2
Above £5M
Revenue threshold
1
Recent incorporations
Since 2022
Key facts
About 12% of the trading cohort reports turnover above £5M (2 of 16 firms) — the rest sits below that revenue band.
6% of the cohort was incorporated since 2022 (1 firms), so a sizeable share is in its first few filing cycles.
Actuarial-services firms turn assumptions on liabilities, claims, longevity and capital into risk advice for regulated organisations.
Insurers and pension schemes are core buyers, with work commonly tied to reserving and solvency planning.
The segment sits close to regulatory and governance processes because capital requirements and long-term liabilities need independent modelling.
Top UK actuarial services companies
OAC PLC
Trajectory
2y · 2021–NowFinancial sub-scores
Computed from 2 filingsProvides actuarial, regulatory and risk advisory services to insurers, pension schemes, banks and investors, including actuarial modelling, redress calculations, bulk annuity pricing, credit risk…
Serves B2B financial institutions, including life and general insurers, funeral plan providers, banks, lenders, pension organisations, investment firms and compliance teams.
Financial Health
HealthyHealthy · Profitable · 0% CAGR over 1y
Location
Solvency2Actuarial Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides actuarial consulting services to life and non-life insurers, including risk and capital modelling, reserving, pricing, investment modelling, IFRS 17 support, and data analytics to support…
Serves life and non-life insurers, from niche organisations to large insurance groups, with buyers involved in actuarial, risk, capital, reserving, pricing, IFRS17 and investment functions.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
MARCUSON CONSULTING LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides actuarial and risk consulting services to insurance and reinsurance companies, including reserve reviews, capital modelling, internal model validation, pricing support, enterprise risk…
Serves B2B clients in general insurance, including Lloyd’s and London Market firms, global insurers and reinsurers, UK and Gibraltar insurers, legacy/run-off operators, new entrants, and regulatory…
Financial Health
DistressedDistressed · 7% CAGR over 1y
Location
MBE CONSULTANTS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides actuarial consulting services to insurance and financial services organisations. Advises on actuarial modelling, performance management, regulatory changes such as IFRS 17, process…
Serves life insurers and related financial services organisations, targeting actuarial and finance teams dealing with regulatory change, reporting, capital modelling and actuarial technology…
Financial Health
DistressedDistressed · -25% CAGR over 3y
Location
Corporate Benefits Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides employee benefits consulting, pensions administration and actuarial services, investment and insurance consulting, banking and credit risk advisory, financial modelling, and redress…
Serves UK employers, pension scheme trustees, insurers, lenders, charities, private companies, family trusts and investors needing employee benefits, pensions, actuarial, investment, insurance and…
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
Haider'S Ltd
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides actuarial consulting and financial risk analysis for insurance companies, financial institutions, and public sector organisations. Services include risk modelling, pensions and insurance…
Serves B2B and public-sector organisations, including insurance companies, financial institutions and government agencies, primarily organisations in London with actuarial, pensions and financial…
Financial Health
StrongStrong · Hiring · 66% CAGR over 1y
Location
RMN ACTUARIAL CONSULTING LTD
Trajectory
4y · 2019–NowFinancial sub-scores
Computed from 4 filingsProvides actuarial consulting on pension schemes, advising trustees and corporate sponsors on funding, risk and cost management, producing FRS17, FRS102 and IAS19 accounting disclosures, and acting…
Serves pension scheme trustees, corporate sponsors with defined benefit obligations, finance teams needing FRS/IAS19 reporting, and legal professionals requiring pension expert witness evidence for…
Financial Health
StrongStrong · Hiring · 15% CAGR over 5y
Location
ZENITH ACTUARIAL LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides actuarial consulting and technology services for insurance and financial services organisations, including risk management support, actuarial function enhancement, analytics, and development…
Serves insurance and financial services businesses seeking actuarial, risk management and technology support, including teams responsible for actuarial functions and risk strategy.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
RNA Analytics Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops actuarial modelling software and provides consulting and training services for insurance companies. Its R3S software suite supports financial, risk and actuarial analysis, including…
Serves insurers and insurance-sector actuarial, risk, finance and regulatory teams needing modelling, reporting and consulting support for financial analysis, risk management and regulatory change.
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
13 The Green Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops actuarial modelling and reporting software for insurance companies and consultancies. Its Iris platform supports actuarial projections, data processing, and financial reporting including…
Sells to reporting actuaries, insurance companies and international consultancies, particularly Life and P&C insurers handling IFRS 17, Solvency II and actuarial modelling requirements across…
Financial Health
DistressedDistressed · -11% CAGR over 2y
Location
DARRAS CONSULTING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides actuarial consulting and calculation services for pension schemes, including benefit modelling, bulk retirement calculations, GMP equalisation projects, pricing and trade updates, and…
Serves UK and European businesses, pension scheme trustees, sponsors and actuarial consultancies involved with defined benefit pension schemes and large actuarial projects.
Financial Health
StableStable · 0% CAGR over 4y
Location
MatBlas Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides actuarial consultancy and training for insurance, reinsurance, brokers and managing general agents. Services include pricing, reserving and risk modelling strategy, underwriting data…
Serves B2B insurance-sector organisations, including managing general agents, brokers, insurance companies, reinsurance companies and Lloyd’s syndicates, plus C-suite, underwriting, actuarial,…
Financial Health
StrongStrong · Hiring · 100% CAGR over 2y
Location
Holborn Underwriting Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides insurance underwriting, risk transfer structuring and actuarial services. Delivers risk analytics and bespoke insurance solutions for insurers and lenders, including modelling, pricing…
Serves B2B financial services clients, primarily insurers and lenders, including teams responsible for underwriting, risk transfer, risk analytics and actuarial decision-making.
Financial Health
StrongStrong · Hiring · 28% CAGR over 5y
Location
W L Consulting Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides actuarial consulting for traded life policy and life settlement markets, including stochastic modelling and valuation of portfolios, independent actuarial valuations, and analytical support,…
Sells to businesses in secondary life markets, particularly portfolio investors, securitisation participants and derivative writers, plus organisations active in life settlement and structured…
Financial Health
WeakWeak · -29% CAGR over 4y
Location
Quantum Advisory
Provides actuarial and consultancy services for pension schemes and employee benefits. Services include pensions administration, governance and secretariat support, defined contribution consulting,…
Serves trustees and employers responsible for small and medium-sized pension and employee benefit schemes, including defined benefit, defined contribution and multi-employer schemes.
Location
LONGEVITAS SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops actuarial software for modelling and analysing demographic and insurance risks, including mortality, longevity, critical illness and policy lapses. Provides survival modelling tools,…
Sells to actuarial and risk teams in insurers, reinsurers, pension providers and consultancies managing mortality, longevity, critical illness, lapse and persistency risk for pricing, reserving and…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
CALIBRANT LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides portfolio management and oversight for delegated authority insurance arrangements, supporting insurers, reinsurers and managing general agents. Delivers performance monitoring, actuarial…
Serves B2B insurance market participants, including insurers, reinsurers, capacity providers and MGAs involved in delegated authority arrangements and underwriting portfolio partnerships.
Financial Health
StrongStrong · -78% CAGR over 3y
Location
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides actuarial consulting services to lawyers, financial advisers and individuals, including analysis of pension assets in divorce, valuation of trusts, and actuarial reports for unfair…
Serves lawyers, financial advisers and private individuals across the UK, particularly parties involved in pension-related divorce, employment, injury/negligence and trust valuation matters.
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 6y
Location
Gemmell Financial Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides actuarial and consultancy services on employee benefits, advising employers and pension trustees on the design, management and communication of group pension schemes and insured benefits.…
Serves trustees and employers managing group pension and insured staff benefit schemes, plus employees and individuals seeking independent financial planning, investment, pension, retirement and…
Financial Health
StableStable · Hiring · 7% CAGR over 2y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides software platforms, data services and consulting for life and pensions providers, including administration systems, legacy system migration, actuarial and data consultancy, and digital…
Serves insurers, master trusts, pension funds and administration providers in the European life and pensions sector, including organisations running group protection, workplace pension and public…
Financial Health
WeakWeak · Hiring · 3% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops cloud-based software for insurance pricing and reserving. Platform uses machine learning and predictive analytics to model risk, analyse demand, build rate plans, manage ratebooks, and…
Sells to insurance companies worldwide, particularly non-life and P&C insurers, serving actuarial, pricing and reserving teams responsible for rate modelling, claims liabilities and portfolio…
Financial Health
StrongStrong · Hiring · 22% CAGR over 2y
Location
Excalibur Actuaries Limited
Trajectory
4y · 2019–NowFinancial sub-scores
Computed from 4 filingsProvides actuarial consultancy focused on pensions in divorce cases, preparing expert reports for solicitors and courts. Analyses and values private and public sector pension schemes and advises on…
Serves UK solicitors and their divorcing clients, particularly those needing pension-related expert input for divorce proceedings involving private or public sector pension schemes.
Financial Health
HealthyHealthy
Location
CAMBRIDGE GUARANTEE LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides consultancy, valuation and analytical services for life insurance and life settlement policies and portfolios. Conducts policy optimisation, due diligence, and portfolio structuring, and…
Serves institutional and non-institutional participants in the life settlement, life insurance and alternative asset investment markets, including investors, agents and blue-chip partners.
Financial Health
WeakWeak · Hiring · 4% CAGR over 5y
Location
IMPLEMENT COMPLIANCE SOLUTIONS & RESOURCES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides risk and insurance advisory services including enterprise risk management, actuarial and compliance consulting, captive insurance feasibility and formation, reinsurance management, and…
Serves corporates, capital markets participants and insurance/reinsurance carriers, plus brokers, MGAs, private equity firms and staffing/PEO businesses with complex risk and insurance needs.
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
ARTEX ILS SERVICES UK LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides alternative risk and (re)insurance services including captive insurance formation and management, actuarial and compliance advisory, reinsurance management, and insurance‑linked securities…
Serves B2B clients including corporates, capital markets participants, insurers, reinsurers, brokers, MGAs, and staffing/PEO firms with alternative risk, captive, reinsurance and ILS needs.
Financial Health
WeakWeak · Hiring · 24% CAGR over 4y
Location
Pollock and Galbraith Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides actuarial consulting and expert witness reports for legal proceedings. Specialises in actuarial analysis for personal injury and fatal accident lump sum awards, employment law disputes, and…
Serves B2B clients involved in legal matters, primarily firms of solicitors, alongside accountants, financial advisers and life insurance companies needing actuarial input for personal injury,…
Financial Health
WeakWeak · -31% CAGR over 3y
Location
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides brokerage, underwriting, and advisory services in longevity and mortality risk markets, structuring and trading instruments such as life settlements, longevity and mortality swaps, and…
Serves large institutional clients globally, including insurance companies, asset managers, private equity funds, pension risk participants, and institutional investors seeking longevity and…
Financial Health
StableStable · -71% CAGR over 4y
Location
DWA Trustees Limited
Trajectory
1y · 2025–NowProvides trustee services for pension schemes, overseeing governance and administration while supporting investment and risk management decisions. Works alongside an investment consultancy that…
Serves institutional clients, including defined benefit and defined contribution pension schemes, pension trustees and IGCs, insurers, charities and asset managers.
Financial Health
Insufficient historyInsufficient history
Location
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How UK actuarial services companies work and how to sell to them
What they do
Actuarial services firms usually earn through time-and-materials consulting, fixed-fee reviews and retained advisory support. Revenue comes from judgement-heavy deliverables: liability valuations, reserving reviews, funding advice, capital modelling, assumption testing, model validation and board or trustee papers. Some package recurring monitoring around valuation cycles or regulatory reporting, but pure subscription income is unusual. Pricing tends to follow the seniority of the actuaries involved, the risk attached to the opinion, and the documentation burden. The service is part technical modelling, part assurance; clients pay for defensible assumptions and accountable review, not just calculation capacity.
Who they sell to
Buyers are usually Chief Actuaries, CFOs, Finance Directors, pensions directors, trustee boards, Heads of Risk and audit-facing finance teams. Insurance and pensions work is rarely bought through a casual self-serve channel; most firms win through referrals, direct senior selling, framework-style panels or formal tenders where independence and credentials are checked. Contract size tends to be set by the complexity of the liabilities and the level of sign-off expected, rather than by the buyer’s headcount. Sales cycles can be elongated by trustee meetings, audit timetables and budget approvals, so timing matters more than volume outreach.
What they buy
Most actuarial practices tend to spend on tools and services that protect billable expert time and reduce review risk. Relevant categories include practice management, time recording, proposal workflow, CRM, document management, secure file exchange, cyber security, data quality, model governance, cloud infrastructure and analytics environments for scenario work. They also buy professional indemnity support, specialist legal and accounting advice, recruitment for qualified actuaries and statistical modellers, continuing professional development, and marketing support aimed at technical buyers. Generic productivity claims are less persuasive than evidence that a vendor can handle confidential client material and audit trails.
Why and how to sell to them
Commercial triggers usually come from pressure on assumptions, reporting timetables, governance scrutiny or a move from founder-led consulting to a wider team. New mandates from insurers or pension schemes, partner hires, a first public-sector tender, headcount growth in modelling roles or a change in reporting requirements can all create buying windows. Outbound works better when it is specific to the risk of rework, missed deadlines, version-control failures, utilisation leakage or weak evidence trails. The pitch should usually be framed around preserving expert time and making client-facing assurance easier to evidence, rather than around generic scale or automation.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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