- WKH COMPANY SERVICES LIMITED- 02204569 - Incorporated on 10 December 1987 
- KNOWLES HOMES LTD- 14033213 - Incorporated on 7 April 2022 
- C & A KNOWLES LIMITEDDisolved- 08336117 - Dissolved on 25 February 2025 
- JAMIE KNOWLES LTD- 08438189 - Incorporated on 11 March 2013 
- KNOWLES BROWN LTD- 12158238 - Incorporated on 15 August 2019 
- KNOWLES & CO (EDIN) LTD- SC592994 - Incorporated on 29 March 2018 
- DANNY KNOWLES LTDActive - Proposal to Strike off- 09738905 - Incorporated on 19 August 2015 
- BOBBY KNOWLES LTD- 16084998 - Incorporated on 18 November 2024 
- MR & MRS S LTDActive - Proposal to Strike off- 12290244 - Incorporated on 30 October 2019 
- ADRIAN KNOWLES CONSTRUCTION LTD- 08972224 - Incorporated on 2 April 2014 
- LEWIS & LEWIS LIMITED- 03160901 - Incorporated on 19 February 1996 
- R KNOWLES LIMITEDDisolved- 09205006 - Dissolved on 30 November 2022 
- PEDEN KNOWLES LTD- NI731393 - Incorporated on 16 July 2025 
- KATIE KNOWLES 470 LTDActive - Proposal to Strike off- 10020621 - Incorporated on 23 February 2016 
- SCOTT KNOWLES 1952 LTDActive - Proposal to Strike off- 10085067 - Incorporated on 24 March 2016 
- WILLS KNOWLES LTD- 11900594 - Incorporated on 23 March 2019 
- A.J.KNOWLES LIMITED- 00786549 - Incorporated on 1 January 1964 
- L & R KNOWLES LIMITEDDissolved- 02667679 - Dissolved on 18 January 2011 
- S W KNOWLES LIMITEDDisolved- 05737191 - Dissolved on 14 March 2023 
- F.P. KNOWLES LIMITED- 06211014 - Incorporated on 12 April 2007