- MR & MRS HOSTING LTDDisolved- 12392705 - Dissolved on 22 February 2022 
- K9 HARKIN KENNEL MANAGEMENT LTDDisolved- 13008536 - Dissolved on 1 November 2022 
- HARKINGS HOLDINGS LIMITEDDissolved- 06927199 - Dissolved on 18 January 2011 
- CATHERINE HARKINS LIMITEDActive - Proposal to Strike off- SC537810 - Incorporated on 13 June 2016 
- MR & MRS WARWICK LTD- 09866159 - Incorporated on 10 November 2015 
- MR & MRS WALKIES LTD- 11895593 - Incorporated on 21 March 2019 
- MR AND MRS SNARK LTDDisolved- 15094153 - Dissolved on 28 January 2025 
- MR & MRS VINTAGE LTDDisolved- 14474020 - Dissolved on 16 April 2024 
- MR D NOONAN & MRS R SO LLP- OC377873 - Incorporated on 21 August 2012 
- MR & MRS HOSSAIN LLP- OC368581 - Incorporated on 4 October 2011 
- MR AND MRS B LIMITED- 12278916 - Incorporated on 24 October 2019 
- MR P AND MRS P LIMITEDDisolved- 10363239 - Dissolved on 5 April 2022 
- HARKINS CARE CONSTRUCTION LTD- 14407305 - Incorporated on 10 October 2022 
- BERT HARKINS RACING LIMITED- 02475985 - Incorporated on 1 March 1990 
- HARKIN'S INFORMATION LIMITED- 06347788 - Incorporated on 20 August 2007 
- HARKINS CENTRAL HEATING LTD- SC710773 - Incorporated on 29 September 2021 
- MR3D LTDDissolved- 07916045 - Dissolved on 28 May 2013 
- MR H2O LTD- 08833148 - Incorporated on 6 January 2014 
- MR3D LTD- 09086767 - Incorporated on 16 June 2014 
- MRBD- 08542859 - Incorporated on 23 May 2013