- JACK CAMERON ELECTRICAL SERVICES LIMITEDLiquidation- SC475979 - Incorporated on 24 April 2014 
- M CASTLETON LTD- 08928095 - Incorporated on 7 March 2014 
- G CASTLETON LTD- 08839061 - Incorporated on 9 January 2014 
- 54 CASTLETON LTD- NI710305 - Incorporated on 20 February 2024 
- N. CASTLETON LLPDissolved- OC336002 - Dissolved on 16 July 2013 
- SB CASTLETON LTDDisolved- 12861710 - Dissolved on 7 December 2021 
- WARLAND DESIGNS LIMITED- 01841542 - Incorporated on 16 August 1984 
- CASTLETON & CO LTDDisolved- 09419877 - Dissolved on 27 August 2024 
- CASTLETONE LTD- 10456681 - Incorporated on 1 November 2016 
- CASTLETONNE LTDDisolved- 14205136 - Dissolved on 9 April 2024 
- CAMERON & CAMERON LTDDissolved- 03137349 - Dissolved on 22 February 2011 
- CASTLETON NW LTD- 12323320 - Incorporated on 20 November 2019 
- CASTLETON CONSULTING LIMITED- 03459610 - Incorporated on 3 November 1997 
- ALLTRUST SIPP LIMITED- 05398985 - Incorporated on 19 March 2005 
- CASTLETON NAMECO LIMITEDDissolved- 08758407 - Dissolved on 24 June 2014 
- UCL FROGNAL LIMITEDActive - Proposal to Strike off- 10728444 - Incorporated on 18 April 2017 
- MRS A N JACK DEVELOPMENTS LIMITED- 06491609 - Incorporated on 1 February 2008 
- UNITEK ENGINEERING LTD.Disolved- SC608764 - Dissolved on 26 October 2021 
- HILLIARD BROTHERS (EWELL) LIMITED- 01375662 - Incorporated on 27 June 1978 
- CASTLETON REID LTDDisolved- 15632453 - Dissolved on 8 July 2025