- 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 
- ISAAC AGNEW LIMITED- NI010842 - Incorporated on 20 August 1975 
- ISAAC MANAGEMENT LIMITEDDisolved- 06481018 - Dissolved on 8 August 2023 
- JOTHAM ISAAC LIMITED- SC375339 - Incorporated on 23 March 2010 
- ISAAC MASSEY LIMITED- 08623640 - Incorporated on 24 July 2013 
- CHRISTIAN & ISAAC LTD- 09735551 - Incorporated on 17 August 2015 
- ISAAC COMMUNICATIONS LTDActive - Proposal to Strike off- 09335773 - Incorporated on 1 December 2014 
- ISAAC ROOFING LIMITEDActive - Proposal to Strike off- 10620008 - Incorporated on 15 February 2017 
- ISAAC CONSTRUCTION LTDActive - Proposal to Strike off- 11749958 - Incorporated on 4 January 2019 
- ISAAC KONCZAK LIMITED- 10175222 - Incorporated on 11 May 2016 
- ISAAC OTOMEWO LIMITEDActive - Proposal to Strike off- 10245459 - Incorporated on 22 June 2016