The Fidelis Partnership | 15,711 followers on LinkedIn. The Fidelis Partnership is a leading privately-owned, Bermuda-based Managing General Underwriter, which, through its subsidiaries, is a global underwriter of property, bespoke and specialty insurance and reinsurance products. The Fidelis Partnership is one of the largest Managing General Underwriters globally and its operations also include outwards reinsurance, claims handling, exposure management and portfolio analytics. The Fidelis Partnership also sponsors and incubates specialist MGAs through its Pine Walk platform.