- GARRYFSTEWART LTDDisolved- 13217193 - Dissolved on 9 May 2023 
- JEPPO ENGINEERING LIMITEDDisolved- 13095927 - Dissolved on 24 May 2022 
- JEPPS PROPERTIES LIMITED- 00748779 - Incorporated on 1 February 1963 
- 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 
- THE RONDOS ACADEMY LIMITED- 07766006 - Incorporated on 7 September 2011 
- CENTRAL SERVICES & SOLUTIONS LTD- 13735404 - Incorporated on 10 November 2021 
- HENRIK JEPPESEN- Born October 1945 - TIDSELTOFT 17, DK-7100 VEJLE, DENMARK, FOREIGN 
- Evelyn Maud JEPPS- Born May 1929 - 3 Sherford Court, Sherford Road, Taunton, Somerset, TA1 3QY 
- JEPPE GREGERSEN- Born March 1974 - 20-22 WENLOCK ROAD, LONDON, ENGLAND, N1 7GU 
- 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 
- P & J DUNCAN LTDDissolved- 09292810 - Dissolved on 6 August 2019 
- DUNCAN 1500 LTD- 12193451 - Incorporated on 6 September 2019