- PROVANS ALLIANCE LP- SL030273 - Incorporated on 17 February 2017 
- PROVANTIS LIMITED- 10946458 - Incorporated on 5 September 2017 
- ALASTAIR LIMITEDDisolved- 13603283 - Dissolved on 28 February 2023 
- RDM CARPENTRY LIMITED- 07675554 - Incorporated on 21 June 2011 
- R MURPHY HOLDINGS LTD- 12782448 - Incorporated on 31 July 2020 
- BELL MICROSYSTEMS LIMITED- 03102360 - Incorporated on 15 September 1995 
- ALASTAIRDAVID LTDActive - Proposal to Strike off- 08388426 - Incorporated on 5 February 2013 
- PROVANTAGE LIMITED- 03618504 - Incorporated on 19 August 1998 
- ALASTAIRCURTISGRAPHICS LTDDisolved- SC757114 - Dissolved on 8 October 2024 
- TRANSEAL ENGINEERING INTERNATIONAL LIMITEDActive - Proposal to Strike off- 06699676 - Incorporated on 16 September 2008 
- ALASTAIR MAY LTDDissolved- 10400806 - Dissolved on 29 June 2021 
- D. PROVAN ENTERPRISES LTD.- SC306467 - Incorporated on 8 August 2006 
- PROVAN COURT 1970 LIMITEDActive - Proposal to Strike off- 09289288 - Incorporated on 31 October 2014 
- THOMSON AND THOMSON LTD- 11644499 - Incorporated on 26 October 2018 
- DAVID PROVAN CARPENTRY LIMITEDLiquidation- 03368949 - Incorporated on 12 May 1997 
- ALASTAIR WOOD LLPDissolved- OC320553 - Dissolved on 19 January 2016 
- ALASTAIR REID LTD- SC459466 - Incorporated on 18 September 2013 - Alastair Reid Autocentre, Perth, PH1 1PP 
- ALASTAIR FRY LTD- 11231392 - Incorporated on 1 March 2018 
- ALASTAIR ROSS LTD- 04485880 - Incorporated on 15 July 2002 
- ALASTAIR O'SHEA LTD- 09755736 - Incorporated on 1 September 2015