What are the names of the 7major UK parties who were campaigning to win the election

LeaderPartyLeader's SeatNumber of SeatsLeader since

1.)Boris JohnsonConservative PartyUxbridge and South Ruislip365,23 July 2019

2.)Keir StarmerLabour PartyHolborn and St Pancras202,4 April 2020

3.)Ian Blackford[a]Scottish National PartyRoss, Skye, and Lochaber47,14 June 2017

4.)Ed Davey [b]Liberal DemocratsKingston and Surbiton11,27 August 2020

5.)Jeffrey DonaldsonDemocratic Unionist PartyLagan Valley817 December 2019

6.)Liz Saville Roberts Plaid CymruDwyfor Meirionnydd3,14 June 2017

7.)Caroline Lucas Green Party of England 0

i think it can have both positive and negative effects on businesses.

for example:

lets say you own a small business and taxes go up 4% that means it is going to cost your business more money to buy product to sell. but at the same time you make more money from the tax rise.

that is my theory.