Sulnox plc (fuel conditioning company)

Microstrategy Inc (software and computer services)

Fairfax Consultants Limited (member's own company; non-trading)

Fairfax Consultants Limited (non-trading)

Director, Fairfax Consultants Limited (member's own company; non-trading)

Non-executive Director, Sulnox plc (fuel conditioning company)

Scottish Mortgage Investment Trust (technology companies)

Tesla Inc (electric vehicle and clean energy company) (interest ceased 7 February 2021)

Visit to Fairfax County, Virginia, USA, 13-19 June 2017, to attend 275th anniversary celebrations of foundation of Fairfax County; flights and accommodation met by hosts

Hawk-i Worldwide Ltd (private security company)

Consultant, Burford Capital plc (corporate intelligence/litigation funding) (interest ceased 28 September 2018)

Chairman, SCF Management Services (Dubai) Ltd (ship-owing, ship management) (interest ceased 27 January 2020)

Chairman, SCF Overseas Holding Ltd (ship-owning, ship management) (interest ceased 31 December 2019)

Non-executive Director, North of England P&I Association Ltd (marine mutual insurance company) (interest ceased 4 February 2021)

Director, Sovcomflot (UK) Ltd (ship-owning, ship management; see below for two related SCF posts) (interest ceased 31 August 2020)

Co-owner and Chairman of Advisory Board, Hawk-i Worldwide Ltd (private security company)