- JOHNSTON VENTURES LIMITEDDissolved- 09521660 - Dissolved on 23 October 2018 
- MARIA JOHNSTON LIMITEDDissolved- 09687521 - Dissolved on 9 April 2019 
- GAYLE JOHNSTON LIMITEDDissolved- 05251514 - Dissolved on 20 May 2014 
- GORDON JOHNSTON LIMITEDActive - Proposal to Strike off- 06583149 - Incorporated on 2 May 2008 
- HARTLEY JOHNSTON LIMITED- 05957907 - Incorporated on 5 October 2006 
- JASWAL JOHNSTON LLP- OC339213 - Incorporated on 6 August 2008 
- JEREMY JOHNSTON LIMITED- NI070870 - Incorporated on 24 October 2008 
- JOHNSTON EARTHMOVING LIMITEDLiquidation- 01160212 - Incorporated on 14 February 1974 
- JOHNSTON OT LIMITEDDissolved- 06609565 - Dissolved on 20 August 2013 
- JOHNSTON PRINTING LIMITED- NI003987 - Incorporated on 30 December 1957 
- JOHNSTON TRANSITS LLPActive - Proposal to Strike off- OC319858 - Incorporated on 22 May 2006 
- TYLER JOHNSTON LIMITEDDisolved- 04340724 - Dissolved on 26 November 2023 
- HAN JOHNSTON LIMITED- SC468616 - Incorporated on 29 January 2014 
- JOHNSTON HORSBURGH LTDDisolved- 09000112 - Dissolved on 16 May 2023 
- JOHNSTON & EVANS LTDActive - Proposal to Strike off- 08444413 - Incorporated on 14 March 2013 
- HUXLEY JOHNSTON LTD- 08475576 - Incorporated on 5 April 2013 
- JOHNSTON MATTHEWMAN LIMITEDActive - Proposal to Strike off- 08577608 - Incorporated on 20 June 2013 
- JOHNSTON HOWARTH LTDActive - Proposal to Strike off- 07634439 - Incorporated on 16 May 2011 
- WAYNE JOHNSTON LIMITED- 09145153 - Incorporated on 24 July 2014 
- JOHNSTON & FIELDS LIMITEDActive - Proposal to Strike off- 09158776 - Incorporated on 4 August 2014