- 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 
- ALEXANDER RICHARD ALLEN- 2 GORE END VILLAS GORE END, NEWBURY, BERKS, RG20 0PJ 
- RICHARD ALEXANDER ALLEN- Born February 1965 - APARTMENT 3 PARKGATE, 43 SOUTHGATE ROAD ISLINGTON, LONDON, N1 3JP 
- RICHARD ALEXANDER ALLEN- Born February 1965 - THE CROWN AND MANOR CLUB HOXTON, WILTSHIRE ROW HOXTON, LONDON, N1 5DH 
- 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 
- Richard Mark ALLEN- Born November 1983 - 24 Montague Road, Hucknall, Nottingham, Nottinghamshire, England, NG15 7DU 
- MARK RICHARD ALLEN- Born September 1972 - 41 CLARE ROAD, BRAINTREE, ESSEX, UNITED KINGDOM, CM7 2PB 
- Richard Mark ALLEN- Born March 1964 - Larchwood House Orchard Street, Redditch, Worcestershire, England, B98 7DP 
- MARK RICHARD ALLEN- 5 COLBRON CLOSE, ASHWELL, BALDOCK, HERTFORDSHIRE, UNITED KINGDOM, SG7 5TH 
- MARK RICHARD ALLEN- FLAT 3, 1 PINIONS ROAD, HIGH WYCOMBE, BUCKINGHAMSHIRE, HP13 7AT 
- MARK RICHARD ALLEN- Born July 1962 - FLAT 3, 1 PINIONS ROAD, HIGH WYCOMBE, BUCKINGHAMSHIRE, HP13 7AT