- BOYCE CARE LTD- 06340784 - Incorporated on 13 August 2007 
- JOSH BOYCE LTD- 12354763 - Incorporated on 9 December 2019 
- NEIL DAVID SMITH ENGINEERING LIMITEDDisolved- 07500426 - Dissolved on 15 February 2022 
- DAVID O'NEILL LOGISTICS LIMITEDActive - Proposal to Strike off- 10342358 - Incorporated on 23 August 2016 
- DAVID O'NEIL CONSULTING LIMITED- 16415208 - Incorporated on 29 April 2025 
- NEIL DAVIDSON MEDICAL LIMITED- 09365539 - Incorporated on 23 December 2014 
- KENTFORD INVESTMENTS LIMITED- 05588176 - Incorporated on 10 October 2005 
- D R BOYCE LIMITED- 05697253 - Incorporated on 3 February 2006 
- P & M BOYCE LIMITED- 05847486 - Incorporated on 15 June 2006 
- M J BOYCE LIMITED- 06715299 - Incorporated on 3 October 2008 
- BOYCE123 LIMITEDActive - Proposal to Strike off- 10837209 - Incorporated on 27 June 2017 
- JACOB BOYCE LTD- NI692774 - Incorporated on 23 November 2022 
- BOYCE HOUSE LTD- 15941902 - Incorporated on 6 September 2024 
- LINDA BOYCE LTD- 03545075 - Incorporated on 14 April 1998 
- J BOYCE LIMITEDDissolved- 06462022 - Dissolved on 8 January 2013 
- JAMIE BOYCE LLPActive - Proposal to Strike off- OC373177 - Incorporated on 8 March 2012 
- J D BOYCE LIMITEDDisolved- 04087834 - Dissolved on 29 August 2023 
- M & J BOYCE LIMITEDDisolved- 04411868 - Dissolved on 21 January 2025 
- BOYCE GROUP LTD- 08194280 - Incorporated on 29 August 2012 
- DAVID O'NEIL WELL SERVICES LIMITEDDissolved- SC350755 - Dissolved on 3 August 2012