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Micro-Degree Insurance and professional services (audit, assurance, risk and advisory)

Insurance, Risk and Audit Advisory: Global Industry Report

Market structure, competition, technology, regulation and outlook

  • Global. Figures are not restated for any single country, and no national regulatory regime is assessed.
  • Data period: Latest available data
  • 10 min read
  • 11 sources
  • Updated Oct 2026
  • Global insurance premiums 7.1trillion USD Estimate Global, Latest available data [3]
  • EY Assurance revenue 18.9billion USD Observed Global, Latest available fiscal year [9]

Summary

This report covers the global insurance market and the large professional services networks that provide audit, assurance, risk and advisory work. It draws only on the source pack. Global premiums were estimated at 7.1 trillion USD in the latest period 3. Allianz reports nominal growth of 7.1 percent to 6.9 trillion EUR, but property and casualty (P&C) premium growth slowed to 3.8 percent as pricing cycles matured 1. Swiss Re forecasts total real premium growth of 1.3 percent in the coming period 2. Supervisors describe stable solvency, liquidity and profitability 56 while flagging private credit, geoeconomic fragmentation, AI adoption and cyber threats. Among the Big Four networks, reported global revenue ranged from 57 to 74.5 billion USD 91011. Advisory and consulting lines grew more slowly than tax at EY 9. The main risks are slowing premium growth, concentrated private credit exposure and cyber disruption. The outlook is for slower growth. Important data gaps remain on fraud, combined ratios, audit market share and KPMG results.

Key findings

  1. 1

    Premium growth is slowing from recent levels

    Global P&C premiums rose 3.8 percent, below a ten-year compound annual growth rate of 5.6 percent. Swiss Re forecasts total global real premium growth of 1.3 percent, down from 3.9 percent in the prior period.

    Confidence: High
  2. 2

    Global premium size estimates depend on definitions

    Bain estimates global premiums at 7.1 trillion USD, while Allianz reports 6.9 trillion EUR in nominal premiums. Statista reports gross written premium, a different measure. The figures use different currencies and definitions and are not combined.

    Confidence: Medium
  3. 3

    Supervisors report sector stability with focused risks

    The IAIS reports strong solvency, liquidity and profitability and a slight decline in aggregate systemic risk. Supervisory priorities include private credit growth, geoeconomic fragmentation, AI adoption and cyber threats.

    Confidence: High
  4. 4

    Big Four revenue is large but growth is uneven

    Deloitte reported 74.5 billion USD, PwC 60.2 billion USD and EY 57 billion USD in global revenue. Fiscal year ends and growth bases differ, so the comparison is indicative only.

    Confidence: Medium
  5. 5

    Advisory growth is modest at constant exchange rates

    PwC advisory revenue rose 3.0 percent and assurance revenue rose 2.6 percent at constant exchange rates. At EY, Tax grew 6.0 percent, Consulting 4.4 percent and Assurance 3.0 percent.

    Confidence: Medium
  6. 6

    A global capital standard now exists for internationally active groups

    The IAIS adopted the Insurance Capital Standard, the first comprehensive global capital standard for insurance supervision. Its binding effect depends on national adoption, which the pack does not establish.

    Confidence: Medium

1Industry definition and scope

This report treats the industry as two linked segments. The first is insurance underwriting and distribution, measured by premiums across property and casualty (P&C) and life lines 13. The second is professional audit, assurance, risk and advisory work provided by large professional services networks, measured by global revenue and service line 91011.

The source pack does not use one definition of market size. Allianz reports nominal global premiums 1, Bain reports estimated global premiums 3, and Statista reports gross written premium 4. These measures are not interchangeable and are kept separate.

Geographic scope is global. The United States is the largest market by estimated gross written premium at 4.0 trillion USD 4, but the pack contains no country-level audit regime. The reporting period is the latest available data. Forecasts are labelled as forecasts. Real growth removes inflation effects, nominal growth does not, and constant exchange rate growth removes currency effects. These bases are not mixed in this report.

2Market size, structure and value chain

Global insurance premiums are estimated at 7.1 trillion USD in the latest period, up from 6.7 trillion USD in the prior period and roughly double the 3.6 trillion USD of an earlier base 3. Allianz estimates that premiums grew 7.1 percent to 6.9 trillion EUR, adding 456 billion EUR to the premium pool 1. The two sources use different currencies and definitions, and the pack gives no conversion, so the figures are presented side by side only.

Growth varies by line. P&C premiums rose 3.8 percent, below the ten-year compound annual growth rate of 5.6 percent, which Allianz links to maturing pricing cycles 1. Life premiums grew 6.9 percent, down from 11.3 percent in the prior period 1. Bain reports reinsurance premium growth of 28 percent over the period it measures, compared with 24 percent for the industry overall 3. The pack does not explain the cause of faster reinsurance growth, so this report treats the cause as unverified.

The value chain runs from risk carriers that underwrite and invest premium, to reinsurers that take on part of the risk, to brokers and intermediaries that distribute products. Professional firms serve insurers and their clients with audit, assurance, risk and governance advice. Distribution channel shares and intermediary revenue were not verified from an accessed source, so channel mix is not quantified. Insurers earn premium and investment income, while professional firms earn fees across Assurance, Consulting, Tax and Advisory lines 910. The pack gives no cost-to-income or combined ratios for the sector.

  • Global insurance premiums 7.1trillion USD Estimate Global, Latest available data [3]
Premium indicators from the pack. Rows cite S1 and S2 individually, as shown in the Source column. Real and nominal bases are not comparable. [1]
Indicator Value Basis Value type Source
Global premiums, latest period 7.1 trillion USD Estimated global premiums estimated S3
Global premium growth, latest period 7.1 percent to 6.9 trillion EUR Nominal observed S1
Global P&C premium growth 3.8 percent Nominal observed S1
Ten-year P&C compound annual growth 5.6 percent Nominal observed S1
Global life premium growth 6.9 percent Nominal, down from 11.3 percent observed S1
Total global real premium growth, forecast 1.3 percent Real, down from 3.9 percent forecast S2
Global non-life real premium growth, forecast 0.6 percent Real forecast S2

Table values are copied from the source facts without conversion. Currency and inflation bases are shown in the Basis column.

3Customers, demand and adoption

Customer groups include individual and commercial policyholders, insurers that buy reinsurance, companies that buy audit and assurance services, boards and audit committees, and supervisors. The pack contains limited direct demand data for these groups, so most of this section is interpretation based on indirect indicators.

Swiss Re describes insurance as a shock absorber in a fragmenting world 2. It forecasts life real premium growth of 2.3 percent, above a long-term trend of 1.9 percent 2. It forecasts non-life real growth of only 0.6 percent, reflecting competitive pricing and slowing economic momentum 2. Together these figures suggest that demand for life and savings products may hold up better than demand for general P&C cover, although the pack does not provide product-level data to test this.

Adoption signals are limited. Supervisors list AI adoption as a supervisory priority 5, and cyber threats appear in supervisory focus 6. The pack does not quantify AI adoption rates, cyber insurance take-up or cyber loss values. Fraud loss rates were also not verified from an accessed primary source. Purchasing criteria for insurance and professional services are not evidenced in the pack. Interpretation: price, capital strength and claims reliability are likely important to insurance buyers, and independence and sector expertise are likely important to audit buyers, but the pack does not confirm these criteria.

Barriers to growth include competitive pricing 2, slower economic momentum 2 and the concentration of growth in fewer lines. Changing expectations are reflected in supervisors' focus on private credit and operational resilience 56.

Assumptions behind these figures

  • Customer criteria are interpretation. The pack does not give buyer survey data.

4Competitive landscape and key players

The pack names no insurers with market shares, so concentration in the insurance market cannot be quantified. Allianz and Swiss Re appear as market analysts, and their reports are used here as evidence of market conditions rather than as company performance data. Market concentration and audit market share for the Big Four were not verified from a primary source.

The Big Four networks differ in scale and mix. Deloitte reported 74.5 billion USD in global revenue, up 5.7 percent in USD 11. PwC reported 60.2 billion USD, up 5.7 percent in USD and 3.5 percent at constant exchange rates 10. EY reported 57 billion USD, up 4.7 percent in local currency 9. KPMG results were not available in the accessed sources, so KPMG is excluded from the comparison.

Business models differ by service line. EY grew Assurance 3.0 percent to 18.9 billion USD, Consulting 4.4 percent to 17.4 billion USD and Tax 6.0 percent to 13.8 billion USD 9. PwC advisory grew 3.0 percent and assurance 2.6 percent at constant exchange rates 10. Growth in tax and consulting lines is faster than in assurance at EY, but PwC's advisory and assurance lines grew at similar low single-digit rates. Pressure on the competitive position comes from slower growth and the risk of pricing competition in both sectors. The fiscal year ends differ (Deloitte 31 May, PwC 30 June, EY June), so the comparison is indicative. Deloitte's figure is from a secondary blog, not a primary release.

  • EY Assurance revenue 18.9billion USD Observed Global, Latest available fiscal year [9]
Big Four global revenue, latest fiscal periodUSD billion
  • Deloitte74.5 USD billion
  • PwC60.2 USD billion
  • EY57 USD billion

Deloitte from S11, PwC from S10 and EY from S9. Fiscal year ends and currency bases differ, so values are indicative only.

Source: Ernst and Young (EY) global organization, as reported by Caproasia

View the data
ItemValue
Deloitte74.5 USD billion
PwC60.2 USD billion
EY57 USD billion

Revenue values are as reported in the cited sources. No restatement to a common currency or year-end has been applied.

5Technology, operations and workforce

The pack identifies AI adoption as a supervisory priority for insurers 5. It does not quantify AI use, automation rates or productivity gains in insurance or professional services. Claims about productivity from AI would be unsupported by this pack and are therefore not made.

Operational exposure is a more concrete theme. Supervisors highlight the growth of private credit investment and the operational and valuation questions it raises 5. They also highlight cyber threats as a current focus 6. These points suggest that insurers' operational resilience and investment governance are under supervisory review, although the pack does not describe specific control failures.

Workforce data is absent. The pack gives no headcount, skills or talent supply figures for insurers or professional firms. Interpretation: the shift in growth toward Tax and Consulting at EY 9 may indicate that professional firms are rebalancing service mix, with implications for audit staffing and skills. This is an inference, not a verified finding.

Assumptions behind these figures

  • Workforce and productivity conclusions are interpretation. No workforce data is in the pack.

6Regulation, standards, risk and sustainability

The jurisdiction for insurance supervision in this report is global, through the International Association of Insurance Supervisors (IAIS). The pack does not identify any national law, and the binding effect of IAIS material depends on adoption by national supervisors. The pack does not evidence how the standard is implemented in any country, so this report does not treat it as binding in any specific market.

The IAIS adopted the Insurance Capital Standard, described as the first comprehensive global capital standard for insurance supervision, applying to internationally active insurance groups 7. This source is a secondary summary, so the details should be checked against the IAIS text before use.

Supervisors report sector resilience 56. The IAIS notes a slight decline in aggregate systemic risk 5. Its earlier report noted that insurers' systemic footprint increased but remained well below that of banks on aggregate 8. Supervisory focus includes geopolitical tensions, macroeconomic challenges and cyber threats 6. Private credit investment is a recognized supervisory priority 5.

Audit and assurance frameworks, including IAASA, PCAOB and ISA standards, were not searched and are not evidenced in the pack. Ethics, privacy, environmental and social factors are also not evidenced. Sustainability reporting requirements are therefore not assessed. This section should not be read as legal or audit regulatory advice.

Binding status is stated only where the pack supports it. Where it does not, the item is described as a supervisory standard or priority.

7Challenges, opportunities and case examples

The main constraints are slowing premium growth and a maturing pricing cycle 12. Growth in professional services is also modest at constant exchange rates, with PwC advisory growing 3.0 percent and assurance 2.6 percent 10. Supervisory attention to private credit, geoeconomic fragmentation and cyber threats adds risk to planning 56.

Opportunities include reinsurance premium growth of 28 percent, which Bain reports as faster than the industry overall 3, and strong tax demand at EY, where revenue grew 6.0 percent 9. Life premium growth of 6.9 percent 1 and the forecast life real growth of 2.3 percent 2 also support demand. Supervisory focus on AI and cyber may create advisory demand, though the pack gives no sizing for this work.

Case example one: Allianz reports that P&C growth slowed to 3.8 percent while life grew 6.9 percent 1. This shows divergent line performance within the same market. Case example two: EY shows a revenue mix with Assurance growing 3.0 percent, Consulting 4.4 percent and Tax 6.0 percent 9. Case example three: PwC grew 5.7 percent in USD but 3.5 percent at constant exchange rates, which shows how currency effects change the reading of growth 10. Comparable company examples were limited to these three sources, and no market share or margin data is available for these firms.

8Outlook and strategic implications

The base case is slower growth. Swiss Re forecasts total global real premium growth of 1.3 percent and non-life growth of 0.6 percent 2. Allianz's observed P&C growth of 3.8 percent supports this direction 1. Life growth is forecast to be stronger than non-life 2.

Downside risks include a shock in private credit, geopolitical disruption and cyber events, all of which supervisors list as priorities 56. Upside possibilities include continued reinsurance growth 3 and stronger tax and advisory demand 910. Statista's forecast of a 2.83 percent compound annual growth rate in gross written premium, reaching 10.52 trillion USD by the end of the forecast window 4, is a vendor forecast that uses a different measure and is not reconciled with other sources.

Implications: insurers should plan for slower P&C growth and monitor private credit and cyber exposure. Reinsurers and brokers should track reinsurance demand. Audit and advisory firms should weigh growth in tax and consulting against modest assurance growth. Supervisors should track systemic risk and private credit. Investors should treat forecasts as uncertain. This is not investment advice.

Assumptions behind these figures

  • Scenarios are interpretation based on forecasts and supervisory statements in the pack.

9Conclusion

The insurance market is large and stable, but growth is slowing. Professional services revenue is high but growing at low single-digit rates at constant exchange rates. The most defensible takeaways are that premium growth is moderating, supervisors see resilience alongside concentrated private credit, cyber and AI risks, and key market metrics remain unverified.

How this was built

This report uses only the source pack. Facts are labelled by source, and forecasts, vendor claims, secondary summaries and interpretation are separated. Premium figures are not converted or combined because they use different currencies and definitions. Big Four figures use different fiscal year ends and currency bases.

Limits to keep in mind

  • No single audited global figure for insurance broker or intermediary revenue was verified, so distribution channel shares are not quantified.
  • Cost-to-income ratios, combined ratios and ROE for the sector were not verified from a primary source. The ROE point from Swiss Re was reported via a secondary news page and is not used as a fact.
  • Audit fee and audit market share data for the Big Four were not verified from a primary source.
  • Independent audit or internal audit advisory market size was not verified from a primary source.
  • Fraud loss rates and cyber insurance loss figures were not verified from an accessed primary source.
  • Regulatory audit and assurance frameworks, including IAASA, PCAOB and ISA standards, were not searched and are not evidenced in this pack.

Sources

  1. 1

    Allianz Global Insurance Report: The Future of Insurance in a Fragmenting World

    Allianz SE Market research

    allianz.com
  2. 2

    sigma: World Insurance, shock absorbers in a fragmenting world

    Swiss Re Institute Industry association

  3. 3

    Strong momentum masks structural challenges for global insurers, Bain & Company Global Insurance Report

    Bain & Company Market research

  4. 4

    Global insurance market statistics: Statista worldwide outlook

    Statista Market research

    statista.com
  5. 5

    IAIS Global Insurance Market Report press release

    International Association of Insurance Supervisors Regulator

  6. 6

    IAIS mid-year Global Insurance Market Report

    International Association of Insurance Supervisors Regulator

  7. 7

    IAIS Insurance Capital Standard (summary via Wikipedia)

    International Association of Insurance Supervisors Standard

    en.wikipedia.org
  8. 8

    Global Insurance Market Report press release

    International Association of Insurance Supervisors Regulator

  9. 9

    EY reports US$57 billion global revenue

    Ernst and Young (EY) global organization, as reported by Caproasia Company report

  10. 10

    PwC grows global revenue to $60.2B

    Accounting Today News report

  11. 11

    Deloitte global revenue as reported in Big 4 comparison

    Autymate (blog citing Deloitte announcement) News report

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