- PITT & UNDERWOOD LIMITEDActive - Proposal to Strike off- 00552253 - Incorporated on 19 July 1955 
- UNDERWOOD AUDIO LTD- 12291099 - Incorporated on 31 October 2019 
- UNDERWOOD SERVICES LIMITED- 12317101 - Incorporated on 15 November 2019 
- TOM UNDERWOOD LIMITEDActive - Proposal to Strike off- 10390702 - Incorporated on 22 September 2016 
- UNDERWOOD LOGISTICS LTDDisolved- 11755822 - Dissolved on 10 September 2024 
- UNDERWOOD FURNITURE LIMITED- 12918898 - Incorporated on 1 October 2020 
- UNDERWOOD CONTRACTS LTDDisolved- SC719871 - Dissolved on 4 July 2023 
- UNDERWOOD FM LIMITEDDisolved- SC723626 - Dissolved on 29 August 2023 
- SARAH UNDERWOOD LTD- 14331710 - Incorporated on 2 September 2022 
- UNDERWOOD CONSULTANTS LIMITED- 15890600 - Incorporated on 12 August 2024 
- UNDERWOOD PROPERTIES LTD- 16220806 - Incorporated on 31 January 2025 
- UNDERWOOD SURVEYORS LIMITED- 16334356 - Incorporated on 21 March 2025 
- UNDERWOODS HARD LTD- 07624300 - Incorporated on 6 May 2011 
- A D UNDERWOOD LIMITEDDisolved- 10856874 - Dissolved on 14 December 2021 
- PAUL IAN UNDERWOOD LTD- 13852505 - Incorporated on 17 January 2022 
- PENELOPES BOUTIQUE LTDDisolved- 12591628 - Dissolved on 12 October 2021 
- W. P. UNDERWOOD LIMITED- 01141052 - Incorporated on 23 October 1973 
- C A UNDERWOOD LIMITEDActive - Proposal to Strike off- 04654975 - Incorporated on 3 February 2003 
- SPACE 2 (CROMWELL) LIMITEDDisolved- 10741318 - Dissolved on 3 August 2021 
- TEDDY DEVELOPMENTS LTDDisolved- 12846952 - Dissolved on 13 August 2024