- AURORA ISAAC LIMITED- 16340523 - Incorporated on 25 March 2025 
- ISAAC TRADER LIMITED- 16548762 - Incorporated on 29 June 2025 
- ISAAC WHOLESALE LIMITED- 05570822 - Incorporated on 22 September 2005 
- ISAAC & HARPER LIMITED- 06967245 - Incorporated on 20 July 2009 
- ISAAC PARTNERSHIP LIMITED- 04316847 - Incorporated on 5 November 2001 
- ISAAC BENSON LIMITED- 06538748 - Incorporated on 19 March 2008 
- ISAAC DESIGNS LIMITEDDissolved- 07663712 - Dissolved on 14 October 2014 
- ISAAC CONSULTING LIMITED- 06183075 - Incorporated on 26 March 2007 
- ISAAC MACHINERY LIMITED- 07899925 - Incorporated on 6 January 2012 
- MACKENZIE ISAAC LIMITED- 06731534 - Incorporated on 23 October 2008 
- ISAAC ETHAN LIMITED- 08837409 - Incorporated on 8 January 2014 
- ISAAC PLANNING LIMITEDActive - Proposal to Strike off- 09012607 - Incorporated on 25 April 2014 
- ISAAC SYSTEMS LIMITEDActive - Proposal to Strike off- 08484604 - Incorporated on 11 April 2013 
- ISAAC HEALTHCARE LTDActive - Proposal to Strike off- 11466919 - Incorporated on 16 July 2018 
- ISAAC WHOLESALE LTDDisolved- 12663542 - Dissolved on 9 November 2021 
- ISAAC ANTHONY LIMITEDDisolved- 11879199 - Dissolved on 5 March 2024 
- ISAAC PROPERTIES LIMITED- 11638742 - Incorporated on 23 October 2018 
- ISAAC LIBERTY LIMITED- 11707222 - Incorporated on 3 December 2018 
- ISAAC & LAILA LIMITED- 12450997 - Incorporated on 10 February 2020 
- ISAAC AUTOMOTIVES LIMITED- 13859377 - Incorporated on 19 January 2022