Monday, November 24, 2025

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AM Best affirms ratings of SLB’s Bermuda captives 

AM Besthas affirmed the financial strength rating of A (excellent) and the long-term issuer credit ratings of “a+” (excellent) of Bermuda-domiciled Castle Harbour Insurance and Harrington Sound Insurance. The outlook for the ratings is stable. 

Castle Harbour and Harrington are single parent captives of SLB, a global technology company focused on energy innovation. 

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