- IVOR VALENTINE LIMITED- 04321002 - Incorporated on 12 November 2001 
- IVOR MORRIS LIMITED- 10227475 - Incorporated on 11 June 2016 
- IVOR PROPERTIES LTD- 12198408 - Incorporated on 10 September 2019 
- IVOR THOMSON LTD- 10463089 - Incorporated on 4 November 2016 
- IVOR JAMES LIMITEDDisolved- 10557162 - Dissolved on 20 March 2025 
- IVOR & THYME LIMITEDDisolved- 14417026 - Dissolved on 10 December 2024 
- IVOR GROUP LTDActive - Proposal to Strike off- 14731636 - Incorporated on 15 March 2023 
- G S DUNCAN LTD.- SC253809 - Incorporated on 5 August 2003 
- P J DUNCAN LTDDissolved- 06332194 - Dissolved on 28 October 2014 
- G A DUNCAN LTD- SC558621 - Incorporated on 24 February 2017 
- R.J DUNCAN LTD- 11177731 - Incorporated on 30 January 2018 
- C&G DUNCAN LTD- 12970681 - Incorporated on 23 October 2020 
- T J DUNCAN LTD- 13181341 - Incorporated on 5 February 2021 
- A&P DUNCAN LTD- 14045090 - Incorporated on 13 April 2022 
- PRINT EVOLVED LIMITED- 03483147 - Incorporated on 18 December 1997 
- SYNERGY COLE LTD- 07870002 - Incorporated on 5 December 2011 
- FLIP CREATIVE MEDIA LLPDissolved- OC364266 - Dissolved on 25 November 2014 
- A & D DUNCAN LTDDisolved- 06238398 - Dissolved on 11 October 2022 
- DUNCAN M LTD- SC037178 - Incorporated on 18 January 1962 
- DUNCAN 1000 LTDActive - Proposal to Strike off- 08738680 - Incorporated on 18 October 2013