GreyCastle Holdings Ltd. is a Bermuda-based reinsurance business capitalized to a S&P AA level. Chaired by Lord James Blyth, GreyCastle is organized and run by veteran insurance executive Raymond Brooks, and has a highly skilled, experienced, and growing team of over 30 professionals in Bermuda and London. GreyCastle is backed by TRB Advisors and Equity Group Investments-led consortium that includes large family offices and university endowments with long-term investment horizons.