- DAVID ALLAN SMITH LIMITEDDissolved- 06350950 - Dissolved on 11 January 2011 
- DAVID ALLAN CONSULTING LTD- 15080895 - Incorporated on 18 August 2023 
- DAVID ALLAN COMPUTING LIMITED- 05215498 - Incorporated on 26 August 2004 
- DAVID ALLAN CONSULTING LIMITEDActive - Proposal to Strike off- 06542298 - Incorporated on 25 March 2008 
- DAVID ALLAN SECURITY LIMITEDActive - Proposal to Strike off- 10532247 - Incorporated on 19 December 2016 
- DAVID ALLAN CONSULTANCY LTD- 11956914 - Incorporated on 23 April 2019 
- DAVID ALLAN LITTLEJOHN LIMITEDActive - Proposal to Strike off- 08063264 - Incorporated on 10 May 2012 
- MR THOMAS DAVID LTDDisolved- 15351641 - Dissolved on 3 June 2025 
- DAVID ALLAN CONSTRUCTION LIMITEDDisolved- 09790032 - Dissolved on 13 September 2022 
- VARTY ALLAN DAVID 80168 LIMITEDActive - Proposal to Strike off- 08984355 - Incorporated on 8 April 2014 
- DAVID H ALLAN GROUP LIMITED- SC084532 - Incorporated on 8 September 1983 
- MCKENZIE BERWIN UK LIMITEDLiquidation- 07817907 - Incorporated on 20 October 2011 
- SOUTHCOTT MIDDLEDITCH LIMITED- 09234364 - Incorporated on 25 September 2014 
- BROOK MIDDLEDITCH LTDActive - Proposal to Strike off- 07670067 - Incorporated on 15 June 2011 
- LAUREN MIDDLEDITCH LIMITEDDissolved- 08139258 - Dissolved on 18 February 2014 
- ALLANSON BUSINESS CONSULTANCY LIMITED- 10445404 - Incorporated on 25 October 2016 
- MR DAVID SHAW LIMITEDDissolved- 06674205 - Dissolved on 23 March 2010 
- DAVID H ALLAN SERVICES LIMITEDLiquidation- SC245224 - Incorporated on 6 March 2003 
- MR ALLAN NEWLOVE LOGISTICS LTDDisolved- 09419268 - Dissolved on 14 June 2022 
- DAVID @ TEES MRI LIMITEDActive - Proposal to Strike off- 09392679 - Incorporated on 16 January 2015