- DONALD LIMITEDActive - Proposal to Strike off- 08333969 - Incorporated on 17 December 2012 
- B & R WHITTAKER LTD- 13458849 - Incorporated on 15 June 2021 
- M S WHITTAKER LTD- 12840668 - Incorporated on 27 August 2020 
- B WHITTAKER LTD- 10111301 - Incorporated on 7 April 2016 
- KF CONSULTANTS LIMITED- 09767207 - Incorporated on 8 September 2015 
- DONALD LTD- 11758699 - Incorporated on 9 January 2019 
- J & K DONALD LTDDissolved- NI601550 - Dissolved on 29 July 2011 
- THE EVERREACH PROJECT LTD- 16491898 - Incorporated on 3 June 2025 
- K A WHITTAKER LTDDisolved- 13738727 - Dissolved on 19 December 2023 
- DONALDO16 LTD- 12641601 - Incorporated on 3 June 2020 
- DONALDO LTD- SC818023 - Incorporated on 31 July 2024 
- MC DONALD LTD- 12019351 - Incorporated on 28 May 2019 
- JC DONALD LTD- NI656485 - Incorporated on 19 October 2018 
- DONALD TM LTDDisolved- 12623388 - Dissolved on 2 November 2021 
- DONALD NOX LP- SL027278 - Incorporated on 22 June 2016 
- DONALD AG LTD- 16005992 - Incorporated on 8 October 2024 
- NW WHITTAKER LTDDisolved- 13528046 - Dissolved on 25 April 2023 
- XN WHITTAKER LTDDisolved- NI680789 - Dissolved on 20 February 2024 
- ZP WHITTAKER LTDDisolved- 13510152 - Dissolved on 19 March 2024 
- SH WHITTAKER LTDActive - Proposal to Strike off- 13957885 - Incorporated on 5 March 2022