- JOHNSTON DENTAL LTD- 14734492 - Incorporated on 16 March 2023 
- GA JOHNSTONE LTDDissolved- 10134520 - Dissolved on 26 March 2019 
- ZO JOHNSTONE LTDDisolved- 13900032 - Dissolved on 17 October 2023 
- VR JOHNSTONE LTDDisolved- 13690721 - Dissolved on 25 March 2025 
- JOHNSTONEBRIDGE LTDActive - Proposal to Strike off- 13940118 - Incorporated on 25 February 2022 
- MR & MR LTD- 16489396 - Incorporated on 2 June 2025 
- PLUM & IVORY LTD- 05767518 - Incorporated on 3 April 2006 
- IVOR HAEL (UK) LTD- 08730220 - Incorporated on 14 October 2013 
- IVORY BLOC LLPActive - Proposal to Strike off- OC404030 - Incorporated on 28 January 2016 
- IVORDALE LTDregistered- OE020319 - Incorporated on 30 January 2023 
- PICK IVORY LTDDisolved- SC714078 - Dissolved on 9 April 2024 
- IVORZINX LTDActive - Proposal to Strike off- SC765071 - Incorporated on 5 April 2023 
- IVORY LOOP LTD- 16589630 - Incorporated on 17 July 2025 
- SS DUNCAN LTD- SC398701 - Incorporated on 3 May 2011 
- MP DUNCAN LTDActive - Proposal to Strike off- 11438154 - Incorporated on 28 June 2018 
- MR MR LTDActive - Proposal to Strike off- 15533685 - Incorporated on 1 March 2024 
- JOHNSTONE & CO LTDDisolved- 04570140 - Dissolved on 1 April 2025 
- JOHNSTONECONSTRUCTION LTDDisolved- 13211628 - Dissolved on 26 July 2022 
- RT JOHNSTONE LTD- SC715413 - Incorporated on 18 November 2021 
- RICHARD LAMMING LTDActive - Proposal to Strike off- 09200896 - Incorporated on 3 September 2014 - Shaddongate, Carlisle, CA2 5TE