Insurers’ Opportunities in M&A: When Buying Fits, When Building Wins

Insurers’ Opportunities in M&A: When Buying Fits, When Building Wins
July 24, 2026 17 mins

Insurers’ Opportunities in M&A: When Buying Fits, When Building Wins

Insurers’ Opportunities in M&A: When Buying Fits, When Building Wins

Insurers’ growth decisions are entering a more complex phase. As markets soften, capital costs rise and structured volatility pressures balance sheets, insurers are reassessing when consolidation creates real value — and when organic or alternative strategies may deliver better outcomes.

Key Takeaways
  1. Many insurers are returning to M&A with a sharper focus on discipline. As markets soften, consolidation is again being considered as a defensive lever — but tighter valuation scrutiny means many buyers are balancing growth momentum with a sharper focus on through‑the‑cycle earnings resilience.
  2. Insurers are using M&A selectively to solve specific constraints. Earnings stability, specialty underwriting talent, distribution access and portfolio diversification are being targeted — particularly where organic build would take too long to protect the equity story.
  3. Cross border activity continues, but execution risk now dominates. Strategy clarity, capital readiness and integration realism are proving more decisive than attempts to time the cycle.

After several years of strong underwriting performance, insurers are navigating a more uneven landscape. Rate momentum is moderating in many lines, claims inflation remains volatile and the cost of capital has reset structurally higher. These conditions are reviving consolidation discussions — but with a markedly different tone from prior cycles.

Where prior softening cycles rewarded scale and speed, today’s environment is exposing the downside of complexity. For insurers with significant catastrophe exposure or reinsurance reliance, incremental volatility now feeds directly into capital efficiency, rating‑agency sensitivity and balance‑sheet planning.

In this context, capital considerations are no longer abstract. For insurers, the question is whether a deal genuinely reduces balance sheet strain through diversification — or compounds it by increasing volatility, capital consumption or reliance on reinsurance.

Insurers are therefore now approaching growth with greater precision, focusing on resilience, capital efficiency and long‑term competitiveness rather than momentum-led dealmaking.

Why This Matters for Insurer C-Suite

Why This Matters for Insurer C-Suite

Over the next 12–24 months, insurer leadership teams will be forced to revisit growth assumptions shaped by the last cycle — just as underwriting margins normalize, reinsurance dependence increases in some lines and balance‑sheet volatility becomes more visible to rating agencies. Applying last‑cycle M&A logic in today’s environment risks locking in integration complexity, earnings volatility or capital strain at precisely the wrong point in the underwriting cycle. Growth decisions now need to withstand not just the next deal, but the next turn in the market.

Strategic Discipline is Shaping Insurance M&A

External signals echo this. Although deal volumes in the M&A market more broadly declined in 2025, deal values reached near-record levels. According to Aon analysis of S&P Global data, the insurance sector recorded deal values of approximately $104 billion, compared with about $88 billion in 2024.1

Insurance carriers are looking for inorganic growth to help compete for scale and returns although creating value through M&A remains challenging given post-merger integration complexity as well as capital and regulatory constraints. As such, acquisitions need to be assessed rigorously: buying scale may defend earnings in the short term, but it can also hardwire exposure to volatility, integration risk or capital strain if the underlying constraint is misdiagnosed.

Capital is essentially concentrating around fewer, higher‑quality assets rather than being deployed broadly.

“The insurance industry is highly cyclical. In hard markets, organic growth tends to be favored,” explains Kathleen Monaghan, Executive Managing Director, Capital Advisory. “As markets soften, consolidation becomes more prevalent as insurers look to defend revenue, manage fixed costs and deploy excess capital built up during stronger underwriting years.”

The cycle remains influential — but what’s changed is the level of discipline. Acquirers are scrutinizing forward earnings more carefully than in past soft markets, weighing future performance far more heavily than historical returns.

Total Global Insurance Transaction Counts (All Segments) (2020 – 2025)

Insurance M&A Volumes Remain Resilient — Even as Economics Tighten

In recent years, quarterly insurance M&A volumes have often ranged between roughly 250 and 300 transactions, even through periods of monetary tightening — underscoring the persistence of deal activity.

insurance-ma-strategy-chart-1

The insurance sector was not immune to the broader slowdown in global M&A following the sharp rise in interest rates from the second half of 2021. However, focusing solely on declining deal volumes risks oversimplifying the picture. While insurance M&A volumes moderated after 2021, aggregate deal values recovered from 2023 and continued to rise through 2025, pointing to a more selective — and more disciplined — approach to capital deployment.

M&A in Insurance

insurance-ma-strategy-chart-4

Rather than retreating from M&A altogether, buyers concentrated capital into fewer, larger transactions, often prioritizing scale, diversification, distribution reach and earnings resilience. In a recent analysis (McKinsey & Company), more than 70%3 of observed transactions were distribution‑led,4 predominantly involving private‑equity‑backed or public‑ and PE‑sponsored brokers.

While the largest public brokers have held relatively stable market share over the past 15–20 years, PE‑backed platforms have expanded rapidly through aggressive tuck‑in strategies, often using leverage to accelerate scale.

This dynamic places far greater weight on pre‑deal discipline, financing assumptions and post‑merger integration, to ensure distribution expansion translates into sustainable earnings resilience rather than eroded value.

From Activity to Outcomes: How Insurers are Raising the Bar on M&A

Insurers are shifting their focus from the volume of deals completed to the outcomes those deals actually deliver — placing far greater emphasis on earnings quality, capital efficiency and through‑the‑cycle resilience than on transaction activity alone.

Recent underwriting strength pushed valuations higher, particularly for scaled specialty platforms. But forward earnings expectations have softened, sharpening tension between seller expectations and what buyers are now willing to pay.

Today’s acquirers are showing less willingness to pay purely for asset scarcity. As deal values have concentrated into fewer, larger transactions, buyers are placing greater weight on the sustainability of earnings, balance‑sheet resilience and the ability to scale without excessive capital strain:

  • How resilient are earnings through the cycle?
  • How exposed is the balance sheet to climate volatility, including climate-related risks?
  • Can the platform scale without disproportionate capital strain?

“Buyers are increasingly focused on forward earnings, not just historical performance,” notes Piers Johansen, Managing Director, Mergers & Acquisitions. “There is a limit to what acquirers are willing to pay if future earnings growth is expected to flatten — even for very high‑quality assets.”

This recalibration may be slowing some transactions — but may also be improving the strategic rationale of those that proceed.

Quote icon

M&A is not just about top‑line growth. For insurers, it is increasingly part of balance‑sheet management — connected to capital relief, earnings volatility and risk transfer strategy via diversification and strategic partnerships with capital providers.

Kathleen Monaghan Ballo
Head of Corporate Finance

The Drivers Behind Today’s Consolidation

As pricing moderates and forward earnings expectations flatten, insurers are becoming far more selective about where M&A can meaningfully strengthen performance. Rather than pursuing scale for its own sake, acquirers are focusing on precise additions that deepen specialty capability, stabilize earnings or enhance distribution in targeted niches where organic growth is constrained.

Large, integration-heavy transformations are increasingly unattractive in a market where execution capacity is limited and capital is more expensive. Instead, insurers are favoring transactions that can be integrated quickly, deliver tangible benefits and avoid introducing disproportionate balance‑sheet or operational risk.

Modernization is influencing decisions as well, but in a highly targeted way than in prior cycles. Advances in underwriting digitization, data assets and distribution platforms shaping acquisition decisions, though rarely enough on their own to justify large, complex platform purchases.

  • AI capability as a deal filter

    AI and data capability have moved from integration considerations to upfront deal filters. Where underwriting platforms, data models and analytics stacks align, acquisition can accelerate progress. Where they do not, insurers are increasingly concluding that building internally — or partnering — offers faster and more controllable outcomes than inheriting technology debt and integration risk.

    “AI and technology are now reshaping insurance M&A from the inside out — bringing efficiency to underwriting and data-driven decision making in ways that influence deal rationale before, not after, the transaction,” notes Colin Gleeson, Managing Director, STG, United Kingdom. For many insurers, this points to capability-led bolt-ons, where integration risk is contained and the value creation is tangible.

  • Talent portability as an integration risk

    Specialty underwriting talent remains a core M&A rationale, but insurers are becoming more realistic about how portable that value actually is. Retention risk, cultural alignment and incentive structures increasingly determine whether acquisition secures the expertise it is meant to capture — or whether that value dissipates post‑close.

    Talent scarcity continues to act as a binding constraint on growth. Deals that deliver hard‑to‑find underwriting teams — particularly in high‑demand segments — may create strategic advantages that can be difficult to replicate through organic hiring at the required pace. At the same time, insurers are placing greater weight on integration realism when assessing whether buying talent truly solves the problem.

    Together, these pressures are not suppressing M&A activity — they are reshaping where scale still makes strategic sense.

Benefits

When Scale Raises the Stakes for Boards and Balance Sheets

Deal size, not deal count, is increasingly shaping how active the market feels — and how much risk sits behind each decision. Recent quarters have seen a higher concentration of large and mega transactions — with more $5 billion plus deals announced than in any comparable 12 month period over the past several years.5 These transactions command disproportionate attention and shape market sentiment, even as overall deal volumes remain stable.

As deal size and execution risk rise, leadership focus shifts decisively from activity metrics to outcomes. With softer organic growth, boards are reassessing equity stories and demanding clearer, capital‑efficient paths to long‑term value creation from M&A. In this context, transactions needs to deliver diversification, forward earnings resilience or access to new growth channels — otherwise, boards may conclude that returning capital to shareholders is a more appropriate option, depending on their specific circumstances and stakeholder expectations.

Capital and risk dynamics have therefore become gating factors rather than downstream considerations. Many insurers still have deployable capital, but rating‑agency sensitivity, solvency implications and the role of reinsurance in smoothing earnings are now assessed far earlier in the decision process. Climate‑related volatility increasingly influences how deals are financed and structured — through capital buffers and reinsurance — even if it seldom serves as the primary acquisition driver.

A More Selective Global Deal Environment

Cross‑border activity remains a feature of the market, particularly as Asian insurers seek diversification and Western carriers pursue targeted acquisitions. However, deal size is becoming less important than strategic fit.

Smaller, targeted acquisitions — focused on underwriting talent, specialist capabilities or niche access — are increasingly favored over integration‑heavy transformations.

  • Capital is flowing internationally

    Japan: MS&AD, Sompo and Tokio Marine have historically been active in cross-border M&A, using overseas platforms to diversify away from domestic concentration. In 2026, MS&AD acquired 15% of W.R. Berkley and Sompo completed its acquisition of Aspen Insurance Holdings.

    South Korea: DB Insurance, the second largest non-life insurer in South Korea announced its acquisition of U.S.-based specialty insurer, expanding DBI’s footprint and product in the U.S.

    Western Europe, U.K. and North America: There is continued interest in expansion in these geographies in specialty products for both cross-border and intra-country transactions. Growing focus on specialty underwriting platforms and talent-led models, with investors and insurers increasingly focused on accessing underwriting capability, global distribution and talent, rather than balance sheet intensity. In particular, we’ve seen several U.S.-based carriers acquire Lloyd’s platforms such as Skyward’s acquisition of Apollo, Radian’s acquisition of Inigo, and Starr’s announced acquisition of IQUW.

    These examples are based on publicly announced transactions and are cited solely to illustrate market activity; they do not constitute a recommendation regarding any security or transaction.

  • Consolidation beyond carriers continues at scale

    UK & Europe: Mid‑tier broker and MGA consolidation remains pervasive across the UK, France, Poland and Italy — and more broadly across the EU.

    United States: Similar consolidation dynamics are playing out at scale, reflecting the same pressures around margin, technology investment and access to specialty capability.

    “What we’re seeing is a clear preference for precision — smaller, targeted acquisitions that add a specific capability or foothold, rather than integration‑heavy transactions,” Gleeson notes.

A Decision Lens for Insurers: When Buying Solves the Problem — and When Building Wins

This framework reflects how insurers are testing whether a transaction genuinely relieves a strategic constraint — or merely relocates risk, complexity or capital pressure.

The following framework is for general informational purposes only and does not constitute investment, legal, or regulatory advice. Actual decisions should be based on each insurer’s specific facts and circumstances and made with their own professional advisors.

Strategic constraint What buyers are trying to achieve What sellers are optimizing for When a deal may be appropriate When a deal may create more risk than value
Underwriting talent gaps Faster access to scarce, specialist underwriting expertise that cannot be built quickly or reliably in‑house Exit timing and value realization, often linked to personal franchise or specialist capability When specialist expertise is genuinely scarce, time critical and difficult to replicate organically — and where cultural alignment, governance and retention structures make the capability durable post close When value is highly portable and individual dependent, or where retention, cultural fit or integration risk could materially dilute the capability after completion
Digital or data capability lag Improve origination, pricing and product line profitability through better data, analytics or platforms Clean carve‑outs of non‑core or under‑invested assets When acquisition accelerates access to proven platforms, data assets or analytics that can be integrated without introducing disproportionate technology debt When legacy systems, integration complexity or operating model misalignment risk slowing progress versus building internally or partnering
Distribution limitations Expand reach in attractive niches, geographies or client segments Portfolio simplification or focus on core markets When acquisition provides immediate, defensible access to distribution, licenses or client relationships that would take too long to develop organically When partnerships, delegated authority, ecosystem arrangements or organic expansion can deliver reach with lower balance sheet strain and execution risk
Earnings volatility or concentration risk Diversification and earnings resilience to support capital efficiency and valuation Liquidity and balance sheet flexibility When diversification through scale genuinely smooths earnings, reduces volatility or improves capital efficiency through portfolio balance When added complexity increases volatility, reinsurance dependence or capital consumption without delivering meaningful resilience benefits
Pressure on the equity story Strengthen forward earnings quality, resilience and long-term competitiveness — not just near-term scale Capital redeployment or crystallization of value When a transaction clearly enhances long-term earnings quality, strategic relevance and resilience, improving the forward capital narrative When capital return, reinsurance optimization or operational performance improvement offers a clearer, lower risk route to value creation
Growth constraints in softening markets Sustain relevance, margins or scale as organic growth slows Exit from structurally challenged or capital-intensive segments When consolidation protects relevance, spreads fixed costs or defends margins in structurally challenged segments When momentum driven expansion risks locking in valuation, integration burden or capital strain at an unattractive point in the cycle

The question is not whether insurers can execute a transaction — but whether acquisition genuinely resolves the strategic constraint once capital, volatility and integration realities are fully accounted for.

Why Readiness Matters More Than Timing

Opportunities rarely align neatly with planning cycles. The insurers best positioned for the next phase are those with clarity around strategy, capital capacity and execution constraints — not those simply most eager to transact.

Johansen emphasizes that the challenge is not executing a deal, but ensuring the decision itself is value‑accretive: “The real risk isn’t whether you can get a deal done — it’s whether that deal genuinely advances the insurer’s strategic objectives once you factor in integration, capital impact and execution reality.”

Monaghan echoes this point, underscoring the importance of capital and balance‑sheet discipline: “Whether an insurer chooses to buy, build or invest, the starting point has to be capital position — what can be deployed without creating pressure with rating agencies or regulators, and how earnings volatility is managed through the cycle.”

What’s emerging instead is a more connected decision mindset — where insurers assess growth options across strategy, capital and execution rather than treating M&A as a standalone lever:

  • Understanding capital implications early, including how different options affect rating agency confidence, earnings volatility and solvency resilience.
  • Testing whether organic improvement can match acquisition, by assessing the speed, scalability and cost efficiency of internal build, modernization or technology enabled enhancements.
  • Evaluating execution realism, ensuring any chosen path — whether buying, building, partnering or investing — can be delivered without overstretching integration capacity or introducing disproportionate balance sheet risk.
  • Using risk transfer and balance sheet tools to support growth, helping smooth earnings, manage volatility and reduce capital strain before pursuing large or complex moves.
  • Drawing on cross border insights and market intelligence, to understand where opportunities are emerging, how investor sentiment is shifting and which routes create the strongest risk adjusted outcomes.

Consolidation can remain a powerful lever, but real advantage today often lies in clarity — understanding when to buy, when to build, and when investing may be the more appropriate third path.

This is the first article in a four‑part series

This opening article establishes why insurers are at a consolidation inflection point now, reframes M&A as a disciplined, problem‑driven growth lever, and introduces the central question that runs through the series: when does buying actually fit — and when does it not?

The subsequent articles build progressively from this foundation:

  • Article 2: How insurers choose between buying, building and hybrid paths
    Moves beyond the buy‑or‑build binary to explore how insurers diagnose strategic constraints and select the most appropriate mix of acquisition, organic investment and partnership.
  • Article 3: A formal framework to pressure‑test growth decisions
    Introduces a structured, board‑level decision lens to test whether M&A genuinely resolves the identified constraint once capital, integration and execution realities are applied.
  • Article 4: Why talent and culture now define M&A outcomes
    Explores how insurers translate strategic intent into value creation, showing why talent retention, cultural alignment and execution discipline are often the decisive factors in M&A success.

Together, the series reflects a shift away from deal‑led thinking toward a more disciplined, system‑level approach to insurance growth — where clarity of purpose, capital alignment and execution realism matter more than transaction volume.

Continue the conversation

Get priority access to articles in this series and additional insights on how insurers are evolving their growth strategies.

Contact Us

Aon’s Thought Leaders
  • Colin Gleeson
    Managing Director, Strategy and Technology Group, United Kingdom
  • Piers Johansen
    Managing Director, Mergers and Acquisitions, Europe, Middle East and Africa
  • Kathleen Monaghan Ballo
    Head of Corporate Finance

1 Insurance: Big deals in Europe and continued activity in the Americas spark M&A, McKinsey & Company
2 Global M&A by the Numbers: Q4 2025, S&P Global
3 M&A in Insurance: Deals Advance Capabilities and Risk Prevention, Bain & Company
4 2024 M&A Year in Review, Marshberry
5 Aon analysis of S&P quarterly aggregated numbers

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This document is provided for general informational purposes only and does not constitute investment, legal, accounting, tax or other professional advice. It is not intended as, and should not be relied upon as, a recommendation, offer or solicitation to buy, sell or hold any security, to pursue any particular transaction or strategy, or to engage any specific service. Any references to specific companies or transactions are illustrative only. Market conditions, regulations and other factors may change, and actual outcomes may differ materially from any views expressed. Insurers should make decisions based on their own objectives, financial situation, risk tolerance and regulatory requirements, and in consultation with their own professional advisors.

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