Answer:
Leader Party Leader's Seat Number of Seats Leader since
1.)Boris Johnson Conservative Party Uxbridge and South Ruislip 365, 23 July 2019
2.)Keir Starmer Labour Party Holborn and St Pancras 202, 4 April 2020
3.)Ian Blackford[a] Scottish National Party Ross, Skye, and Lochaber 47,14 June 2017
4.)Ed Davey [b] Liberal Democrats Kingston and Surbiton 11,27 August 2020
5.)Jeffrey Donaldson Democratic Unionist Party Lagan Valley 8 17 December 2019
6.)Liz Saville Roberts Plaid Cymru Dwyfor Meirionnydd 3, 14 June 2017
7.)Caroline Lucas Green Party of England 0