- 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 
- ALEXANDER MARK & COMPANY LIMITEDActive - Proposal to Strike off- 03255838 - Incorporated on 27 September 1996 
- MARK ALEXANDER BEAUTY LIMITEDDissolved- 06151857 - Dissolved on 26 February 2013 
- MARK ALEXANDER HOMES LIMITED- 09958446 - Incorporated on 19 January 2016 
- MARK ALEXANDER JOHN LTDDisolved- SC687162 - Dissolved on 28 June 2022 
- MARK ALEXANDER WEBSTER LTD- 16118838 - Incorporated on 4 December 2024 
- MR ROD ALEXANDER LIMITED- 11950770 - Incorporated on 17 April 2019 
- MR. ALEXANDER LAUGHLIN LIMITEDLiquidation- SC332947 - Incorporated on 25 October 2007 
- MARK ALEXANDER DEVELOPMENTS LIMITED- 05681785 - Incorporated on 20 January 2006 
- ALEXANDER MARK CONSULTING LTD.- 10816946 - Incorporated on 13 June 2017 
- MARK ALEXANDER PROPERTY LTDActive - Proposal to Strike off- 11194629 - Incorporated on 8 February 2018 
- MARK ALEXANDER HOLDINGS LTDActive - Proposal to Strike off- 09864831 - Incorporated on 10 November 2015 
- MARK ALEXANDER BRAND LTD- 11218616 - Incorporated on 21 February 2018 
- MARK ALEXANDER WILLIAMS LTDDissolved- 10564035 - Dissolved on 5 February 2019 
- ALEXANDER MARK WILLIAMS LIMITEDDisolved- 13624358 - Dissolved on 4 July 2023 
- MARK ALEXANDER INNOVATIVE LTD- 15819686 - Incorporated on 4 July 2024 
- MARK ALEXANDER PRODUCTIONS LIMITEDActive - Proposal to Strike off- 04603437 - Incorporated on 28 November 2002 
- MARK ALEXANDER FURNITURE LIMITEDActive - Proposal to Strike off- 07656861 - Incorporated on 3 June 2011