- DUNCAN ROBERT JOHNSTONE- Born February 1978 - 58 GREEN LANE, LONDON, ENGLAND, KT3 5BU 
- DUNCAN CAMPBELL JOHNSTONE- 3 KIRKLAND PLACE, DUMFRIES, DUMFRIESSHIRE, DG1 4LL 
- IAN DUNCAN JOHNSTONE- Born April 1958 - 67 HILLSIDE AVENUE, BROMLEY CROSS, BOLTON, LANCASHIRE, BL7 9NQ 
- SHEENA DUNCAN JOHNSTONE- Born February 1936 - CRICHTON ROYAL BOWLING CLUB BANKEND ROAD, THE CRICHTON, DUMFRIES, DUMFRIES AND GALLOWAY, DG1 4TH 
- DUNCAN CAMPBELL JOHNSTONE- 3 KIRKLAND PLACE, DUMFRIES, DUMFRIESSHIRE, DG1 4LL 
- DAVID DUNCAN JOHNSTONE- Born October 1990 - 41/3 SHANDON CRESCENT, EDINBURGH, SCOTLAND, EH11 1QF 
- IVOR LIMITED- 06432491 - Incorporated on 20 November 2007 
- JOHNSTONE & JOHNSTONE ENGINEERING LIMITED- 11762146 - Incorporated on 11 January 2019 
- Raymen Ivor, Mr. WILLBERN- Born September 1981 - International House 36-38, Cornhill, City Of London, London, England, EC3V 3NG 
- Anthony Ivor, Mr. BRITTAN- Born April 1975 - Ort House 126 Albert Street, London, NW1 7NE 
- Richard Ivor, Mr. AMBROSE- Born April 1950 - Child Care Centre Waunarlwydd Road, Cockett, Swansea, Wales, SA2 0GB 
- Duncan, Mr. SAMUELS- Born April 1961 - International House International House, 36-38 Cornhill, London, United Kingdom, EC3V 3NG 
- DUNCAN DUNCAN LTDDissolved- 06922958 - Dissolved on 18 January 2011 
- DUNCAN DUNCAN LTD- 13081778 - Incorporated on 15 December 2020 
- Duncan John, Mr. ROSS- Born December 1971 - 14 Lydford Court, Newcastle Upon Tyne, England, NE3 2RB 
- Emmanuel Ande, Mr. IVORGBA- 2nd Floor, College House 17 King Edwards Road, Ruislip, London, England, HA4 7AE 
- Blair Adrian, Mr. JOHNSTONE- Born February 1963 - 370 Ampress Lane, Lymington, United Kingdom, SO41 8JX 
- John Duncan, Mr. BURNS- 57 Malmstone Avenue, Merstham, Redhill, Surrey, RH1 3ND 
- John Duncan, Mr. BURNS- 57 Malmstone Avenue, Merstham, Redhill, Surrey, RH1 3ND 
- John Duncan, Mr. BURNS- Born July 1959 - 57 Malmstone Avenue, Merstham, Redhill, Surrey, RH1 3ND