Reform UK Ben Delo £36M 2026 Conservative Lord (J) Sainsbury £10M 2022 Reform UK Christopher Harborne £9M 2019 Lib Dems Lord (D) Sainsbury £8M 2019 Conservative Mohamed Mansour £5M 2023 Conservative Frank Hester £5M 2023 Conservative Stuart Wheeler £5M 2001 Conservative Sir J P Getty £5M 2001 Reform UK Ben Delo £4M 2026 Labour Cayman Islands £4M 2024 Conservative Lord Laidlaw £2.9M 2007
