Westminster insurance was founded in 1948 as a mutual insurer serving the taxi and hackney carriage trade. It has extremely strong links with both the private and public hire industries and provides market-leading insurance products through its network of 45 tied agents which are located throughout the UK.

In December 2014 Clegg Gifford, a prominent national Lloyd's broker purchased Westminster insurance. This exciting acquisition sees an increase in the breadth of facilitates and the products the Westminster agents can offer its clients and ties together two companies who operate from a branch office network now extended to include Romford, Guernsey, Jersey, Edinburgh, Peterborough, Minories (City of London), Cannock and Wakefield, as well as through the 45 tied agents with offices across the UK.