- ALLAN CARR LTDDisolved- SC529208 - Dissolved on 18 March 2025 
- ALLANBAY LTD- 10546675 - Incorporated on 4 January 2017 
- ALLAN COLE LTDActive - Proposal to Strike off- 10604731 - Incorporated on 7 February 2017 
- ALLAN & BASS LTD- 13265536 - Incorporated on 15 March 2021 
- CAYSON COWAN LIMITEDDisolved- 14420631 - Dissolved on 19 March 2024 
- COWAN CLEARANCE LTDDisolved- SC756793 - Dissolved on 11 March 2025 
- COWAN RECOVERY LIMITED- 01339144 - Incorporated on 17 November 1977 
- COWAN ARCHITECTS LTD.- 02420614 - Incorporated on 7 September 1989 
- KESLEY COWAN LIMITEDDissolved- 07013130 - Dissolved on 11 October 2011 
- COWAN CREEK LIMITEDActive - Proposal to Strike off- 07035614 - Incorporated on 30 September 2009 
- CLARK & COWAN LIMITED- SC224525 - Incorporated on 24 October 2001 
- BARRY COWAN LIMITED- 06013073 - Incorporated on 29 November 2006 
- COWAN ANALYSTS LIMITED- 06720566 - Incorporated on 10 October 2008 
- HALPERN COWAN LIMITEDLiquidation- 03891429 - Incorporated on 6 December 1999 
- COWAN GROUP LIMITED- 04339397 - Incorporated on 13 December 2001 
- COWAN CONTRACTING LIMITEDDissolved- 07806730 - Dissolved on 25 February 2014 
- COWAN & BUTLER LIMITEDDissolved- 07942697 - Dissolved on 6 May 2014 
- COWAN LONDON LIMITED- 05589297 - Incorporated on 11 October 2005 
- COWAN PUBLISHING LIMITEDLiquidation- SC213359 - Incorporated on 24 November 2000 
- COWAN ENTERPRISES LIMITED- 04189395 - Incorporated on 28 March 2001