- I KNOWLES LTDDissolved- 06978028 - Dissolved on 6 September 2011 
- G F KNOWLES LTDDisolved- 09941672 - Dissolved on 19 March 2024 
- A&C KNOWLES LTD- 12924179 - Incorporated on 2 October 2020 
- KNOWLES365 LTDDisolved- 13734960 - Dissolved on 9 May 2023 
- A & E KNOWLES LTDDissolved- 09038874 - Dissolved on 16 October 2018 
- C KNOWLES LTDDisolved- 12846652 - Dissolved on 1 February 2022 
- P J KNOWLES LTD- 13712748 - Incorporated on 29 October 2021 
- KNOWLES'S LTDActive - Proposal to Strike off- 08077904 - Incorporated on 22 May 2012 
- M&C KNOWLES LTDDisolved- 14347825 - Dissolved on 19 December 2023 
- N KNOWLES LTDActive - Proposal to Strike off- 09636436 - Incorporated on 12 June 2015 
- J KNOWLES LTD- 08761142 - Incorporated on 4 November 2013 
- E KNOWLES LTD- 08568108 - Incorporated on 13 June 2013 
- V J KNOWLES LTDDisolved- 11229254 - Dissolved on 21 December 2021 
- M&D KNOWLES LTD- 12496883 - Incorporated on 4 March 2020 
- KNOWLES 66 LTDDisolved- SC787144 - Dissolved on 1 April 2025 
- MRS A N JACK DEVELOPMENTS LIMITED- 06491609 - Incorporated on 1 February 2008 
- NR KNOWLES LTDDisolved- 13644398 - Dissolved on 4 March 2025 
- KNOWLES EUROPE- 00703640 - Incorporated on 19 September 1961 
- KNOWLESY LTDDisolved- 14916423 - Dissolved on 8 July 2025 
- KNOWLES&CO LTDActive - Proposal to Strike off- 08688416 - Incorporated on 12 September 2013