- DAVID ROBERTS ACADEMIC CONSULTING LTDDisolved- 09611207 - Dissolved on 26 October 2021 
- JOHNSTON INTERIORS LIMITEDDisolved- SC463824 - Dissolved on 1 April 2025 
- COASTAL DEVELOPMENTS (PEMBS) LTDActive - Proposal to Strike off- 09142012 - Incorporated on 22 July 2014 
- TEN TEN DESIGN LIMITED- 08172693 - Incorporated on 8 August 2012 
- MR & MRS LARK LTDDissolved- 08146557 - Dissolved on 26 November 2019 
- CIS PARTNERSHIP IN LIMITED PARTNERSHIP WITH MR ROBERT MROCZEK- LP009204 - Incorporated on 30 January 2004 
- A. & J. JOHNSTONE LTD.- SC245393 - Incorporated on 10 March 2003 
- L JOHNSTONS LTDActive - Proposal to Strike off- 07323089 - Incorporated on 22 July 2010 
- B & H JOHNSTONE LTD- SC436337 - Incorporated on 7 November 2012 
- JOHNSTON TM LTDActive - Proposal to Strike off- 12159217 - Incorporated on 15 August 2019 
- YL JOHNSTON LTDDisolved- 13711448 - Dissolved on 1 April 2025 
- IAN G JOHNSTONE- SL001010 - Incorporated on 4 August 1987 
- JOHNSTONM LTDActive - Proposal to Strike off- 09370751 - Incorporated on 31 December 2014 
- FW JOHNSTON LTDDisolved- 13582320 - Dissolved on 18 July 2023 
- WL JOHNSTON LTDActive - Proposal to Strike off- 13976078 - Incorporated on 15 March 2022 
- JOHNSTON CE LTDDisolved- 14183401 - Dissolved on 21 November 2023 
- O JOHNSTON & CO LTD- 16212255 - Incorporated on 28 January 2025 
- JOHNSTON'S PLUMBING & MULTITRADE LTD- SC730738 - Incorporated on 27 April 2022 
- C JOHNSTON & CO LTD- NI651568 - Incorporated on 9 March 2018 
- DR G A JOHNSTON LTD- 06991885 - Incorporated on 17 August 2009