- ISAAC MEDIA LTD- 06977780 - Incorporated on 31 July 2009 
- ISAAC 2008 LIMITED- 09523441 - Incorporated on 2 April 2015 
- B K ISAACS SONS LTD- 08801103 - Incorporated on 3 December 2013 
- ISAAC BLAKE LTD- 15926130 - Incorporated on 30 August 2024 
- FAIR ISAAC (UK) LLP- OC371092 - Incorporated on 28 December 2011 
- LUKAS ISAAC LTD- 09791914 - Incorporated on 23 September 2015 
- PETER ISAAC LTDDissolved- 10633187 - Dissolved on 3 December 2019 
- ISAAC CAREW LTDLiquidation- 10235385 - Incorporated on 16 June 2016 
- L.M. ISAAC LIMITEDActive - Proposal to Strike off- 10420170 - Incorporated on 11 October 2016 
- ISAAC SALES LTDDisolved- 13430021 - Dissolved on 1 November 2022 
- ISAAC HALAL LTDDisolved- 13583958 - Dissolved on 8 August 2023 
- RYLEY ISAAC LTD- 15000413 - Incorporated on 13 July 2023 
- CAPEL ISAAC LTDDisolved- 13601130 - Dissolved on 15 April 2025 
- ISAAC’S GROUP LTD- 14786302 - Incorporated on 7 April 2023 
- NEXTPHARMA HOLDINGS LTD- 07474361 - Incorporated on 20 December 2010 
- ISAAC FRANCO LTDDissolved- 07408388 - Dissolved on 5 June 2012 
- ISAAC (WITHAM) LTDActive - Proposal to Strike off- 07388841 - Incorporated on 28 September 2010 
- ISAAC FAMILY LLP- OC411408 - Incorporated on 21 April 2016 
- ISAACSELLING LTDActive - Proposal to Strike off- 12072369 - Incorporated on 27 June 2019 
- HG ISAAC CO-INVEST L.P.- LP021820 - Incorporated on 3 June 2021