- COLIN GEORGE DUNCAN- Born August 1947 - QUEEN'S COURT HOUSE 39 SANDGATE, AYR, AYRSHIRE, KA7 1BE 
- COLIN DUNCAN STACEY- Born October 1959 - THE WALNUTS MILL LANE, LAWFORD, MANNINGTREE, ESSEX, UNITED KINGDOM, CO11 1DU 
- Duncan Colin BARRIE- Born February 1970 - Citygate House Bath Lane, Newcastle Upon Tyne, Tyne And Wear, NE4 5SQ 
- COLIN DUNCAN LEITCH- Born July 1987 - 35 MCCAREYS LOANEN, LARNE, BT40 2DN 
- COLIN DUNCAN TAYLOR- Born October 1962 - 12 BEDFORD AVENUE, LITTLE CHALFONT, BUCKINGHAMSHIRE, HP6 6PT 
- COLIN GEORGE DUNCAN- Born September 1958 - 10 CHROMATE LANE, LERWICK, SHETLAND, ZE1 0AL 
- COLIN DUNCAN LEITCH- Born October 1987 - 35 MCCAREYS LOANEN, LARNE, UNITED KINGDOM, BT40 2DN 
- COLIN GEORGE DUNCAN- MALAKOFF ENGINEERING LIMITED NORTH NESS, LERWICK, SHETLAND, SCOTLAND, ZE1 0LZ 
- COLIN DUNCAN LEITCH- Born July 1987 - 35 MCCAREYS LOANEN, LARNE, CO ANTRIM, BT40 2DN 
- Duncan Colin BARRIE- Born February 1970 - 7 Bishops Gate, Durham, England, DH1 4JU 
- Duncan Colin BARRIE- Born February 1970 - Citygate House Bath Lane, Newcastle Upon Tyne, United Kingdom, NE4 5SQ 
- DUNCAN COLIN BARRIE- 35 ROSEMOUNT, DURHAM, COUNTY DURHAM, DH1 5GA 
- DUNCAN COLIN BARRIE- Born February 1970 - 35 ROSEMOUNT, DURHAM, COUNTY DURHAM, DH1 5GA 
- Duncan Colin BARRIE- Born February 1970 - Citygate House Bath Lane, Newcastle Upon Tyne, Tyne And Wear, NE4 5SQ 
- DUNCAN COLIN BARRIE- Born February 1970 - 7 BISHOPS GATE, DURHAM, ENGLAND, DH1 4JU 
- STEVEN COLIN DUNCAN- Born October 1985 - 14 GRASSINGTON PLACE, THATCHAM, BERKSHIRE, ENGLAND, RG19 3XD 
- DUNCANS LTD- 13317845 - Incorporated on 7 April 2021 
- EK DUNCAN LTDDisolved- 13739478 - Dissolved on 15 April 2025 
- COLINZ LTD- 14405376 - Incorporated on 7 October 2022 
- COLIN BAINDissolved- SC174326 - Dissolved on 27 September 2016