He succeeded to the family barony and baronetcy in 2007, upon the death of his uncle, the 4th Baron Borwick, MC.

Borwick became Chief Executive (from 1987 to 2001) of Manganese Bronze Holdings plc, best known for making London Taxis, and then chairman until 2003.

Borwick was founder and owner of electric truck producer Modec in Coventry in 2004.

He was Chairman of Route2Mobility Ltd, funding wheelchairs and scooters for disabled people as part of the UK's Motability scheme, until October 2010.

Thomas Borwick, is the Conservative Party digital media strategist, previously for Vote Leave.