The Capital Recyclers

Why London's legacy acquirers are the most under-served buyers in insurance technology, and what it takes to win them

Lloyd's legacy specialists have taken almost $15bn of reserves off other syndicates' balance sheets since 2010. Their margins now depend less on the price they pay than on how cheaply and precisely they run what they buy. That makes them an IT services opportunity. It is smaller than the hype suggests, but it is one of the most winnable in the market.

Most IT services firms look at the London Market and see Blueprint Two, placement platforms and delegated authority. Few explore the other end of the insurance lifecycle, where a handful of specialist acquirers buy the liabilities everyone else wants to forget.

In legacy, operational performance is priced directly into every deal. Lloyd's asks acquirers to itemise the profit they expect from claims savings and 'other efficiencies' and from January 2025 it will not approve a transaction without a credible integration plan – In summary, when deal flow is thin, as it is in 2026, the acquirer that runs a book most cheaply can pay the most for the next one making running efficient and effective operations the ‘True Bid’

The serviceable addressable market (SAM) for consulting-led IT services across UK and European legacy acquirers c. $160m a year - roughly 28% of the sector's estimated $580m UK and European cost base. This is what a provider can realistically take from in-house teams, claims administrators, actuaries and the Big Four.

About $105m is winnable from the 7 named acquirers accounting for 81% of it.

The prize is not a bigger outsourcing contract. It is a redesigned operating model:

- a Data-as-a-Service core, - an AI-driven claims and recoveries platform build-support, - and right-shored delivery built to PRA SS2/21 from day one.

For a representative acquirer with a $150m cost base, a five-year model shows a net benefit of $100m and an NPV of $70m , with payback in about 21 months.

That is roughly 4 times the value of building the same capability in-house.

How the market works

Example: RiverStone International's 2025 accounts show the model at work: $210m of underwriting profit and $275m of investment income, against $149m of operating expenses. Acquirers usually protect themselves too. They inherit the seller's reinsurance and often buy their own aggregate cover. Five dedicated RITC syndicates (RiverStone, Enstar, Premia, Compre and Marco) have taken on almost $15bn of Lloyd's reserves since 2010, and Catalina, DARAG and Swiss Re are also active. Yet three-quarters of Lloyd's syndicates have never done a legacy deal, and more than 85% of attendees at Aon's April 2026 legacy event said their organisation was highly likely to consider one within two years. The supply is there. The constraint is execution.

The strategic squeeze:

Legacy acquirers face a dilemma as; Deals are scarce because buyers and sellers disagree on reserves - H1 2026 liabilities transacted roughly halved to $780m; idle capital drags with returns below mid-teen targets Tail risks are resurfacing - Compre's $128.5m 2024 loss shows how PFAS, abuse and social inflation can erase acquired margins Lloyd's now approves transactions on integration capability - weak integration evidence delays Lloyd's sign-off, the seller's capital release and the buyer's Funds at Lloyd's Fixed costs persist as books run down - RiverStone's $149m cost base equals 71% of underwriting profit and persists as reserves run down and new structures leave acquirers carrying risk they do not control - renewable ADCs and sidecars results in acquirers holding reserve risk while sellers still handle claims and the pressure lands on data and operations

Taken together, all the above points to one conclusion - The next phase of competition in legacy will be fought on operating economics: who can price a book fastest, integrate it most credibly and run it most cheaply, without compromising policyholder outcomes or regulatory standing.

RiverStone, the largest Lloyd's legacy player, generates roughly $485m a year of underwriting profit and investment income and spends $149m running its business worldwide. A market worth $430m to IT services firms would imply the whole peer group outsourcing almost its entire cost base and that is in an inaccurate representation!

The estimated e UK and European operating cost of seven named acquirers, plus a long tail of Swiss Re's legacy unit, insurers' in-house run-off units and sellers preparing for deals, at about $580m. Roughly two-thirds of that is people cost, and much of it is specialist judgement (settlement authority, reserve sign- off, reinsurance disputes) that should never leave the acquirer. What remains contestable is technology change, process work that can be right-shored, and deal-driven project work. On conservative assumptions that comes to $ 160m a year across the acquirers . For RiverStone it implies about $30m, around 6% of its income: credible, fundable and big enough to matter!

The second filter is winnability; the share a consulting-led provider can realistically take. Applied line by line, $105m of the $160m is winnable.

Exhibit 1: SAM by cluster, coloured by winnability (author estimates)

Redesigning the operating model

The legacy operations depend on a few experts, manual effort and bespoke processes – It still runs like is a craft, not industrialised. Assembled deal by deal, each acquisition brought its own systems, spreadsheets, reinsurance records and people, and integration has often meant moving the data just far enough to pay claims. Most acquirers remain heavily onshore: Marco, for example, says 95% of its 400-plus insurance professionals are UK- based. The knowledge that makes the model work sits with specialists, many of them near retirement. The result is a largely fixed cost base, a data estate that is hard to interrogate at deal speed, and integrations delivered by firefighting rather than by design – no playbook.

Design for the future: Four layers.

• At the foundation is a Data-as-a-Service core: a governed, acquirer-owned platform holding every policy, claim, reinsurance contract, reserve and cash flow, with lineage from source to regulatory return. It is packaged into data services the acquirer consumes on subscription: deal intelligence, reserve monitoring, recoveries allocation, cedant oversight and regulatory reporting. It also holds the institutional memory: wordings, coverage positions and settlement precedents, turned into a knowledge base that AI assistants can reason over
• Above it sits the AI-driven platform: a claims and recoveries workbench, either a modernised in-house core or a package, with AI co-pilots that summarise files, suggest settlement and commutation options, allocate claims to reinsurance treaties and draft litigation chronologies. The platform prepares; humans decide.
• The people layers sit on top. The test for where work belongs is judgement and regulatory criticality, not cost. Settlement authority, commutation negotiation, reserve sign-off, reinsurer disputes and regulator contact stay onshore.
• Structured, rules-based and AI-assisted work moves to nearshore and offshore teams working inside the same platform.

For in-scope processes, the mix moves from about 90% onshore to roughly 35% onshore, 20% nearshore and 45% offshore. Around all of it runs a control layer designed for the PRA. Compliance stops being a cost of outsourcing and becomes part of the product.

The effect is to turn a fixed, onshore, person-dependent cost base into a variable, platform-based one that scales with deal flow. That is exactly what an acquirer needs when volumes swing from $2.6bn one year to $0.4bn the next.

Cluster 1: Data as a Service & deal intelligence SAM $20m | winnable $12.5m (62%, medium)

Deals fail on the bid spread in reserves - RiverStone says several 2025 blocks fell over on exactly that point, and its newly acquired reserves dropped from $2.6bn to $0.4bn. The acquirer that can show where a reserve surplus lies, inside its four-to-six-week diligence window, wins more books at better prices.

The Data-as-a-Service core makes that possible. Seller data rooms are loaded into the acquirer's own data model within days. Every claim file is read by AI for signs of PFAS, abuse or social-inflation exposure.

Each line of the Lloyd's pricing template is backed by the acquirer's own settlement history, not by consultants' benchmarks.

Potential to sell the same platform to the other side of the deal: readiness services help first-time sellers, who are three-quarters of Lloyd's syndicates, present cleaner data and close faster. Knowledge capture and AI governance belong here too, because they sit on the same data foundation. One rule is non-negotiable: the data asset must be private to each client. Acquirers regard their claims history as their competitive edge and will never pool it.

Cluster 2: AI claims & recoveries platform SAM $24m | winnable $15.0m (62%, medium)

Claims handling is where legacy profit is made and lost, so the temptation is to sell a new claims system. With the largest acquirers, resist it. RiverStone reviewed third-party platforms and chose to modernise its own PINS system, deliberately building in capacity for AI. The winning pitch is modernisation around the core: APIs, migration into the data layer, and AI services that plug in. Package implementations are for smaller or newer players. The highest-value AI use case is decision support for settlement and commutation: options grounded in the acquirer's own outcomes, with humans holding authority and fair outcomes for policyholders built into the guardrails. Litigation support should be scoped narrowly to documentation and summarisation (chronologies, pleading summaries, legal bill packs) and legal strategy left with panel firms. Positioned this way, the provider strengthens the acquirer's claims philosophy instead of threatening it.

Cluster 3: Integration & migration factory SAM $16m | winnable $12.0m (75%, high)

Since January 2025, every Lloyd's legacy deal needs a Legacy Transaction Plan. It must cover transition, migration, transitional services and KPIs that Lloyd's tracks, with enhanced oversight above GBP150m of reserves and an independent actuarial opinion above GBP500m. Integration speed has become a competitive weapon: RiverStone cites its migration of more than 95 systems onto one platform as a selling point. A repeatable integration factory lets any acquirer promise the same: standard data maps into the data core, automated reconciliation, parallel running, quick exit from the seller's transitional services, decommissioning and a defensible archive. The long-dated option is tooling for split RITCs. PwC's Andy Ward says current Lloyd's technology makes carving a class of business out of a

year of account 'very difficult', and that fixing it could 'vastly increase' portfolio RITC deals. Whoever solves that data carve-out has a claim on a market that does not yet exist.

Cluster 4: Right-shored operations SAM $55m | winnable $39.4m (72%, high)

This is the largest cluster, and it has the most direct line to the P&L. It brings every offshore and nearshore component into one managed service running on the AI platform, while onshore specialists keep authority. Reinsurance recoveries deserve special attention. Older London Market books can rely on recoveries for a large share of gross claims, Lloyd's requires sellers to disclose significant aged debts and disputes, and acquirers inherit the collection problem. A recoveries service priced on gainshare , meaning a share of cash collected above an agreed baseline, is the single most persuasive offer a provider can make.

Finance and accounting operations, claims administration and file digitisation provide the scale. Report production and actuarial data preparation are capped because sign-off must stay onshore. Part VII and commutation campaigns bring lumpy but repeatable project revenue.

Cluster 5: Actuarial, finance & regulatory transformation SAM $25m | winnable $12.5m (50%, contested)

Actuarial judgement belongs to the acquirer and its advisers, which is why this cluster is the hardest to win. The opportunity lies in the machinery around that judgement:

- data and modelling support for reserve analysis, - early warning of reserve deterioration, and claims cash-flow forecasting and simulation to feed asset- liability management (forecasting only, not investment advice).

Investment income was RiverStone's largest profit line in 2025, so better cash-flow forecasts are worth more than they look. The bigger transformation is in finance: a single ledger reporting on Lloyd's, Solvency UK, IFRS 17, US GAAP and local bases; a regulatory pipeline with traceable lineage for Lloyd's XBRL, BMA and Central Bank of Ireland returns; and support for simplifying legal entities, such as RiverStone folding its Maltese platform into Ireland.

The buyer's business case: why partner, why not build on your own?

To test whether the proposition holds for the buyer, the modelling has been done using a representative acquirer at RiverStone's scale: a $150m operating cost base, of which $48m sits in the processes and technology the redesign touches (claims administration, recoveries, finance operations, report production, data management and legacy IT). Comparing the building capability in-house with partnering with a consulting-led provider, over five years. The partner case migrates 40% of scope in year one and 85% in year two. Net savings on migrated work rise from 25% to 45%, net of provider fees, as right-shoring is followed by AI productivity .

On top come four value levers: higher reinsurance recoveries, better claims outcomes, avoided integration costs and legacy IT decommissioning. Costs include transition, platform build and run, severance and dual running, and the governance needed to meet SS2/21.

The partner case delivers $144m of benefits for $41m of costs. That is a net $103m, an NPV of $70m at 10% , a 2.5x return on transition investment and payback in about 21 months . By year five, run-rate net savings reach $25.3m, about 17% of the whole cost base , before the value levers. The in-house build delivers $24m (NPV $12m, payback about 45 months) . It starts later, captures less, and has no gainshare partner sharing recoveries risk and no platform assets proven across other deals.

- Speed: a provider with a proven transition playbook and reusable data models captures savings two years earlier - A variable cost structure: capacity scales with deal flow rather than being hired for peaks and, - Shared risk: gainshare pricing on recoveries and fixed-price integrations move execution risk onto the provider.

Guiding principles for going to market

The opportunity is concentrated, specialist and regulated. That rewards discipline more than scale. Five principles separate providers that will win here from those that will waste a year of pursuit costs.

• Lead with the bid, not the back office Frame every proposition in the profit lines of the Lloyd's pricing template. A legacy CFO will fund a lower cost to run each dollar of reserves, because it raises what they can pay for the next book. They will not fund 'digital transformation'.
• Work through the deal ecosystem Aon, Gallagher Re, WTW, the Big Four restructuring teams, actuarial firms and law firms run most transactions. Become their delivery engine for data rooms, Part VII campaigns and integrations. Engage in September, when syndicates plan next year's business.
• Sell to named accounts, on triggers Seven acquirers hold about four-fifths of the SAM. Build a plan for each around its live trigger: AF Group, PINS, Pro Global, renewable ADCs, large RITCs, European transfers. Keep surge capacity for diligence.
• Price on outcomes Gainshare on recoveries above a baseline, a fixed price per integration, per-file claim review, subscriptions for data services and monitoring. Time-and-materials pricing marks you as a cost to manage.
• Make regulation part of the product Arrive with SS2/21, operational-resilience and DORA controls already built. Keep regulated decisions onshore. This shortens procurement by months and beats cheaper rivals.

The last word

Legacy acquirers are in the business of buying other people's problems and running them better. For the past decade 'better' meant sharper claims judgement and a strong balance sheet. For the next decade it will mean data, platforms and a disciplined operating model, because Lloyd's is pricing operational capability into every approval and scarce deal flow is pricing it into every bid. This market is small enough to know by name and valuable enough to specialise in. The provider that treats it as a sideline will lose to one that treats it as a franchise.