- DOG PROFESSOR LIMITED- 12943661 - Incorporated on 12 October 2020 
- BIRD PROFESSOR LTDDisolved- 14759615 - Dissolved on 10 September 2024 
- TREE PROFESSOR LTD- 15975181 - Incorporated on 24 September 2024 
- PROFESSOR PANCAKE LIMITED- 16229925 - Incorporated on 4 February 2025 
- Ian Gordon, Professor CAMPBELL- Born April 1963 - University Of Hertfordshire College Lane, Hatfield, Hertfordshire, England, AL1 9AB 
- Ian Gordon, Professor CAMPBELL- Born April 1963 - The University Of Hertfordshire College Lane, Hatfield, Hertfordshire, United Kingdom, AL10 9AB 
- PROFESSOR DRIP LTDDisolved- 14304172 - Dissolved on 23 January 2024 
- PROFESSOR MART LTD- 16349236 - Incorporated on 27 March 2025 
- CAMPBELL & CAMPBELL LTD- 15778977 - Incorporated on 14 June 2024 
- PRICE JONES HOLDINGS LIMITED- 14904906 - Incorporated on 31 May 2023 
- CLARKSONVILLE LIMITEDLiquidation- 06181535 - Incorporated on 23 March 2007 
- PLUMB PROFESSOR LTDDisolved- 13211836 - Dissolved on 18 July 2023 
- PROFESSOR MUNCHIES LTDActive - Proposal to Strike off- 15575237 - Incorporated on 19 March 2024 
- PROFESSOR PRINT LTDActive - Proposal to Strike off- 07700052 - Incorporated on 11 July 2011 
- GINGER PROFESSOR LIMITEDDissolved- 07267079 - Dissolved on 15 October 2013 
- PROFESSOR BALANCE LTD- SC605713 - Incorporated on 20 August 2018 
- PROFESSOR SERVICES LTD- 10108583 - Incorporated on 7 April 2016 
- PROFESSOR BALTHAZAR LTDActive - Proposal to Strike off- 09832294 - Incorporated on 20 October 2015 
- PROFESSOR KLEAN LTDDisolved- SC719186 - Dissolved on 6 September 2022 
- PAINT PROFESSOR LTD- 16399565 - Incorporated on 22 April 2025