- Ivor William Duncan STEWART- Born April 1947 - 34 Mostyn Avenue, Llandudno, Conwy, LL30 1YY 
- Stuart Duncan, Mr. BALMER- Born October 1963 - Apartment B, 5 Castle Crescent, Reading, England, RG1 6AQ 
- Philip Duncan, Mr. WARDLE- Born August 1963 - One Curzon Street, London, W1J 5HD 
- Stephen Duncan, Mr. UPTON- Born May 1970 - 4 Gareloch Avenue, Airdrie, Scotland, ML6 6SH 
- Duncan George, Mr. BENBOW- Born May 1958 - Flat 1 49 Meads Road, Eastbourne, East Sussex, United Kingdom, BN20 7QA 
- EH JOHNSTONE LTDActive - Proposal to Strike off- 11890136 - Incorporated on 19 March 2019 
- DD JOHNSTONE LTDDisolved- 13893769 - Dissolved on 20 February 2024 
- RJ JOHNSTONE LTDDisolved- 13708699 - Dissolved on 14 March 2023 
- A K DUNCAN LTDDissolved- 04439595 - Dissolved on 29 December 2009 
- E.J. DUNCAN LTD- 03221200 - Incorporated on 5 July 1996 
- A K DUNCAN (2008) LTD- 06659970 - Incorporated on 30 July 2008 
- DUNCAN 121 LTDDissolved- 06768273 - Dissolved on 20 July 2010 
- IVOR WILSON LTD- NI701947 - Incorporated on 18 September 2023 
- IVOR HOLDINGS LIMITED- 00477239 - Incorporated on 14 January 1950 
- IVOR HOLMES LIMITED- 00645538 - Incorporated on 24 December 1959 
- IVOR SHAW LIMITED- 00755641 - Incorporated on 29 March 1963 
- IVOR JOHNS & SONS- LP004889 - Incorporated on 13 July 1995 
- IVOR BLEANEY LIMITEDActive - Proposal to Strike off- 02593820 - Incorporated on 21 March 1991 
- IVOR BROOKS LIMITED- 00831499 - Incorporated on 17 December 1964 
- PERCY IVOR LIMITEDDissolved- 08982259 - Dissolved on 2 July 2019