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Enstar Group
Enstar Group was founded in 1993 in Hamilton, Bermuda, by Dominic Silvester, who remains CEO. The firm identified a structural niche: acquiring books of legacy...
Enstar Group
Enstar Group was founded in 1993 in Hamilton, Bermuda, by Dominic Silvester, who remains CEO. The firm identified a structural niche: acquiring books of legacy insurance and reinsurance liabilities, then managing the run-off — the process of settling claims and administering policies until expiry — more efficiently than the original carriers. Over three decades, Enstar became the largest run-off acquirer globally, completing over 115 transactions and assuming tens of billions in reserves across property, casualty, workers' compensation, and asbestos and environmental liability lines. Enstar's strategy blends insurance liability management with an active investment portfolio. The firm acquires run-off portfolios and live companies through direct acquisitions, novations, and loss portfolio transfers. Once acquired, Enstar consolidates claims management onto its proprietary platforms, pursuing commutations and settlements to reduce tail risk. The float — premiums held before claims are paid — fuels a global investment portfolio spanning investment-grade fixed income, private credit, and opportunistic co-investments. Its portfolio has included US environmental liability books, legacy asbestos exposures, and European motor and casualty run-off. Sixth Street, J.C. Flowers, and CPP Investments have been long-term institutional partners, co-investing alongside Enstar on large-scale legacy transactions. The firm operates through a network of subsidiaries in Bermuda, the US, the UK, Australia, and continental Europe. It has held ownership stakes in publicly traded run-off vehicles and reinsurance platforms, including KaylaRe — a joint venture with Hillhouse Capital — and previously StarStone, its active underwriting arm. In July 2024, Sixth Street, through its insurance platform, agreed to acquire Enstar for $5.1 billion in a take-private transaction, with co-investors Liberty Strategic Capital, J.C. Flowers, and other institutional partners (per the companies' public release, July 2024). The deal reflects Enstar's evolution from a pure-play run-off specialist to a sought-after permanent capital vehicle. Enstar's structural differentiator is its closed-loop model: it does not chase premium growth or compete for new policies in a traditional sense. By acquiring liabilities rather than originating them, it operates with a declining claims profile and a predictable capital release schedule. The Sixth Street acquisition positions Enstar to expand its reach using external institutional capital, converting the firm from a publicly traded consolidator into a privately held platform with a permanent capital mandate — an architecture that mirrors the asset-gathering logic of private equity but within the insurance sector.
General information
Firm type
Corporate Investor
Year founded
1993
AUM
Undisclosed
Location
Region
North America
Country
Bermuda
City
Hamilton
Corporate office
Hamilton, Bermuda
Principals
Dominic Silvester
CEO and co-founder
Sector focus
Frequently asked questions
What exactly is insurance run-off, and how does Enstar make money from it?
Insurance run-off refers to the management of policies that are no longer sold, where the insurer's sole obligation is to pay valid claims until the policies expire. Enstar acquires these legacy liability books at a discount to the reserves the seller holds, then profits by managing claims more efficiently — through commutations, targeted settlements, and tighter cost control. The float from the acquired reserves is also invested, generating incremental returns. The spread between the discounted purchase price and the ultimate claims payout, plus investment income, constitutes Enstar's core earnings model.
Who runs investment decisions at Enstar?
Dominic Silvester, as CEO and co-founder, has overseen Enstar's strategic and capital allocation decisions since 1993. The firm's investment portfolio is managed internally, with allocations spanning fixed income, private credit, and opportunistic direct investments. With the 2025 Sixth Street acquisition, strategic oversight now involves Sixth Street's insurance platform leadership alongside Enstar's existing management team.
What role does Sixth Street play in Enstar's operations now?
Sixth Street led the $5.1 billion acquisition of Enstar that was announced in July 2024 and expected to close in 2025, alongside co-investors Liberty Strategic Capital, J.C. Flowers, and other partners. Post-acquisition, Enstar remains operationally independent but benefits from Sixth Street's institutional capital base and its insurance asset management platform. The deal structure suggests Sixth Street views Enstar as a permanent capital vehicle for legacy insurance acquisitions.
Does Enstar still underwrite any new insurance policies?
Enstar has historically operated both run-off acquisitions and live underwriting through subsidiaries like StarStone, but its active underwriting operations were largely divested by 2020 to focus exclusively on the legacy run-off segment. The firm now concentrates entirely on acquiring and managing closed books of insurance liabilities, eliminating the volatility and capital demands of originating new risks.
What types of insurance liabilities does Enstar typically acquire?
Enstar targets complex, long-tail liability portfolios including US and European workers' compensation, general liability, asbestos and environmental exposures, motor insurance run-off, and property catastrophe legacy reserves. The firm prefers larger portfolios — often hundreds of millions or billions in reserves — where its centralized claims platforms and commutation expertise can reduce tail uncertainty more effectively than the original carrier's run-off operations.
How is Enstar related to its investment partners like J.C. Flowers and CPP Investments?
J.C. Flowers and CPP Investments have been long-term business partners, co-investing in specific legacy acquisition transactions alongside Enstar, and holding equity stakes in Enstar itself at various points. J.C. Flowers, a private equity firm specializing in financial services, was an early institutional backer. CPP Investments has partnered on several large-scale run-off deals, including European motor and casualty portfolios. Both participated in the 2024 Sixth Street acquisition syndicate.
What is KaylaRe, and how does it fit into the Enstar structure?
KaylaRe was a Bermuda-based reinsurance joint venture formed by Enstar and Hillhouse Capital to acquire reinsurance run-off portfolios. Hillhouse, a major Asian investment manager, contributed capital while Enstar provided the operational run-off platform. The vehicle gave Enstar access to Asian-sourced reinsurance liabilities and a strategic partnership with one of the largest institutional investors in the region.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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