- ISAAC ROSS LIMITEDActive - Proposal to Strike off- 08277326 - Incorporated on 1 November 2012 
- WHO IS ISAAC LIMITED- 11849772 - Incorporated on 27 February 2019 
- LAWRENCE ISAAC LTD- 10213279 - Incorporated on 3 June 2016 
- ISAAC LEVI LIMITEDDisolved- 11092255 - Dissolved on 13 December 2022 
- ISAAC TECH LIMITEDDisolved- 13929641 - Dissolved on 25 February 2025 
- ISAAC CORP LIMITEDDisolved- 13303819 - Dissolved on 2 July 2024 
- ISAAC HOLDINGS LTDActive - Proposal to Strike off- 11814735 - Incorporated on 8 February 2019 
- ISAAC SAUNDERS LTDDissolved- 06574463 - Dissolved on 26 January 2010 
- ISAAC'S EXCHANGE LTD.Dissolved- 07337315 - Dissolved on 13 March 2012 
- ISAAC APPS LIMITEDActive - Proposal to Strike off- 08719166 - Incorporated on 4 October 2013 
- S. P. ISAAC (BATH) LIMITED- 08300976 - Incorporated on 20 November 2012 
- ISAAC NOAH LIMITED- 09054063 - Incorporated on 23 May 2014 
- FOX TAYLOR ISAAC LLP- OC398988 - Incorporated on 23 March 2015 
- ISAAC TECH LIMITEDActive - Proposal to Strike off- 10457397 - Incorporated on 2 November 2016 
- AMY & ARIANA ISAAC LTDActive - Proposal to Strike off- 11174784 - Incorporated on 29 January 2018 
- ISAAC ROSE LIMITEDActive - Proposal to Strike off- 12187091 - Incorporated on 3 September 2019 
- ISAACVAN LIMITEDDisolved- 13860257 - Dissolved on 22 July 2025 
- L.ISAAC & SONS LIMITED- 14695773 - Incorporated on 28 February 2023 
- ISAAC SHAW LIMITED- 16010200 - Incorporated on 10 October 2024 
- ISAAC VENTURES LTD- 16504218 - Incorporated on 9 June 2025