- ROBERTSON SIMPSON GROUP LIMITED- 08371000 - Incorporated on 22 January 2013 
- MR WILLIAM ROBERT GREEN LTDDisolved- NI706592 - Dissolved on 20 May 2025 
- MR SIMPSON'S SUPREME CLEAN LIMITEDActive - Proposal to Strike off- 08024965 - Incorporated on 11 April 2012 
- Barbara, Mrd SIMPSON- Born April 1965 - Unit 8 Castle Park Industrial Estate, Flint, Flintshire, Wales, CH6 5XA 
- Donald Ian SIMPSON- Born April 1964 - Rossie Ochil Home Farm House Forgandenny, Perth, Scotland, PH2 9DH 
- Donald Ian SIMPSON- Born April 1964 - Rossie Ochil Home Farm House Forgandenny, Perth, Scotland, PH2 9DH 
- Ian Donald SIMPSON- Born May 1954 - One Station Square, Bracknell, England, RG12 1QB 
- Ian Donald SIMPSON- Born May 1954 - C/O Hicks Baker 10-14 Duke Street, Reading, England, RG1 4RU 
- DONALD IAN SIMPSON- Born April 1964 - GRANARY BARN, STORWOOD, YORK, NORTH YORKSHIRE, YO42 4TD 
- DONALD IAN SIMPSON- Born April 1964 - WOODLAND LODGES ALLT ESGAIR, ST. CLEARS, CARMARTHEN, UNITED KINGDOM, SA33 4LF 
- Ian Donald SIMPSON- 2 Old Bath Road, Newbury, Berkshire, RG14 1QL 
- Ian Donald SIMPSON- Born May 1954 - One Station Square, Bracknell, England, RG12 1QB 
- IAN DONALD SIMPSON- Born May 1954 - BOHEMIA HOUSE, HARPSDEN WAY, HENLEY, OXFORDSHIRE, RG9 1NX 
- Ian Donald SIMPSON- Born May 1954 - 3rd Floor 86-90 Paul Street, London, England, EC2A 4NE 
- IAN DONALD SIMPSON- Born May 1954 - SANDBOURNE CHAMBERS 328A WIMBORNE ROAD, WINTON, BOURNEMOUTH, DORSET, BH9 2HH 
- IAN DONALD SIMPSON- BOHEMIA HOUSE, HARPSDEN WAY, HENLEY, OXFORDSHIRE, RG9 1NX 
- DONALD IAN SIMPSON- GRANARY BARN, STORWOOD, YORK, NORTH YORKSHIRE, YO42 4TD 
- DONALD IAN SIMPSON- Born April 1964 - 72 ELVINGTON PARK, ELVINGTON, YORK, NORTH YORKSHIRE, YO41 4DW 
- IAN DONALD SIMPSON- Born May 1954 - BOHEMIA HOUSE, HARPSDEN WAY, HENLEY, OXFORDSHIRE, RG9 1NX 
- IAN DONALD SIMPSON- BOHEMIA HOUSE, HARPSDEN WAY, HENLEY, OXFORDSHIRE, RG9 1NX