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- D.M.DONALDSON LTD- 11632712 - Incorporated on 19 October 2018 
- A & A DONALDSON LTD- SC736875 - Incorporated on 29 June 2022 
- DONALDSON 101 LTDDisolved- 15576404 - Dissolved on 22 October 2024 
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- DANLEW LIMITEDDisolved- 06528780 - Dissolved on 10 October 2023 
- SCOTT DONALD ARCHITECTURE LTD- 07750220 - Incorporated on 23 August 2011 
- REGINALD MAITLAND PTY LTDregistered- OE034023 - Incorporated on 13 June 2025 
- CFS (CHATTAWAY FINANCIAL SERVICES) LIMITED- 08470205 - Incorporated on 2 April 2013 
- BEARDY LIMITEDDissolved- SC498451 - Dissolved on 3 April 2018 
- Ian Donald Fordyce, Mr. BACON- Born April 1955 - T&L PROCESS TECHNOLOGY LIMITED Thames Refinery Factory Road, Silvertown, London, London, United Kingdom, E16 2EW 
- REGINALD COLE & CO. LIMITED- 01129964 - Incorporated on 20 August 1973 
- REGINALD K MARSH LIMITEDDisolved- 08652436 - Dissolved on 12 October 2021 
- REGINALD NORMAN REID DONALD- C/O KPMG LLP 319 ST VINCENT STREET, GLASGOW, G2 5AS 
- REGINALD DONALD GEORGE VIAN- Born March 1933 - HAVELOCK HOUSE, PO BOX 180 26 FINCH ROAD, DOUGLAS, ISLE OF MAN, IM99 1PX 
- REGINALD NORMAN REID DONALD- C/O KPMG LLP 319 ST VINCENT STREET, GLASGOW, G2 5AS 
- REGINALD NORMAN REID DONALD- Born August 1954 - DONREE, FOULPAPPLE ROAD, NEWMILNS, AYRSHIRE, KA16 9LB 
- DONALD REGINALD MARSHALL HOOPER- Born October 1936 - CHY AN MENGLETH 95 TREZAISE ROAD, ROCHE, ST AUSTELL, CORNWALL, PL26 8HQ 
- DONALD REGINALD COURTENAY ROPER- Born July 1928 - PARK VIEW HURSTON LANE, STORRINGTON, PULBOROUGH, WEST SUSSEX, RH20 4HH