- ROBERT ALEXANDER ROOFING LIMITED- SC844867 - Incorporated on 11 April 2025 
- ROBERT ALEXANDER GROENROOS LTDDissolved- 07748663 - Dissolved on 2 April 2013 
- ROBERT ALEXANDER ESTATES LTDDisolved- 14077819 - Dissolved on 21 May 2024 
- ROBERT ALEXANDER UK LIMITEDDissolved- 03435124 - Dissolved on 16 February 2010 
- ROBERT ALEXANDER PHOTOGRAPHY LTD- 10847741 - Incorporated on 3 July 2017 
- ROBERT ALEXANDER MCCRAW LIMITEDActive - Proposal to Strike off- SC475249 - Incorporated on 14 April 2014 
- ROBERT ALEXANDER HOMES LIMITED- 11027787 - Incorporated on 24 October 2017 
- MR AND MRS MARKETING LTDActive - Proposal to Strike off- 11781998 - Incorporated on 22 January 2019 
- MR ROBERT PLUMMER LTD- 12535679 - Incorporated on 26 March 2020 
- WREXHAM USED CAR PARTS LTDDisolved- 08436921 - Dissolved on 22 April 2025 
- MR MARK LANE LTDActive - Proposal to Strike off- 10447161 - Incorporated on 26 October 2016 
- THE POUR ON RESIN COMPANY LTDDisolved- 12934170 - Dissolved on 20 December 2022 
- MARK MRAIL LTDActive - Proposal to Strike off- 11117406 - Incorporated on 19 December 2017 
- HAR MARK ALEXANDER LIMITEDDisolved- 15315373 - Dissolved on 27 August 2024 
- MARK ALEXANDER CONSULTANCY LIMITEDDissolved- 06467690 - Dissolved on 22 June 2010 
- MARK ALEXANDER & ASSOCIATES LTDActive - Proposal to Strike off- 08002645 - Incorporated on 22 March 2012 
- ALEXANDER MARK DEVELOPMENTS LIMITEDDisolved- 07212191 - Dissolved on 17 August 2021 
- MARK H ALEXANDER LTDDisolved- 09339992 - Dissolved on 14 March 2023 
- MARK ALEXANDER FARRELL LIMITEDDisolved- 11568978 - Dissolved on 19 February 2025 
- MARK ALEXANDER COURIER LIMITEDActive - Proposal to Strike off- 11087626 - Incorporated on 29 November 2017