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Aon, Blackstone launch Lloyd’s syndicate

Aon and funds managed by Blackstone, the New York-based alternative asset manager, on Friday announced the official launch of Cortina, a Lloyd’s of London reinsurance syndicate. Cortina syndicate 1956 is expected to begin underwriting from Jan. 1, 2027, subject to final approval from…

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Aon

Dublin-domiciled global broker with 2025 revenue of $17.2 billion across commercial risk, reinsurance, health and retirement; owns the NFP benefits arm.

Revenue$17,181 million (2025 Form 10-K and Jan. 30, 2026 results release)
EmployeesApproximately 60,000 (Dec. 31, 2025, per the 2025 Form 10-K)
HeadquartersDublin, Ireland

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