- CARL DAVID NEIL LIMITED- 07375761 - Incorporated on 14 September 2010 
- DAVID NEIL CRABTREE LTD- 11407117 - Incorporated on 11 June 2018 
- DAVID W HARRIS LIMITED- SC576671 - Incorporated on 19 September 2017 
- MRS.D.V.A.HARRISON LIMITED- 00615987 - Incorporated on 2 December 1958 
- DAVID NEIL CONSULTANCY LTDActive - Proposal to Strike off- 08369656 - Incorporated on 22 January 2013 
- DAVID NEIL ASSOCIATES LTDDissolved- 06301822 - Dissolved on 22 September 2015 
- MR DAVID SHAW LIMITEDDissolved- 06674205 - Dissolved on 23 March 2010 
- DAVID HARRIS RACING LTD- 14136369 - Incorporated on 27 May 2022 
- HARRISON DAVID HILL LTD- 16367110 - Incorporated on 4 April 2025 
- DAVID NEILL FOODS LIMITED- 03575927 - Incorporated on 4 June 1998 
- THE NEIL DAVIDSON LIBRARY- CS007224 
- TINY GIANT ENTERTAINMENT LIMITED- 14526089 - Incorporated on 6 December 2022 
- EDUCATION WITH MRS NEIL LTD- 16402512 - Incorporated on 23 April 2025 
- NEIL WARNER MRTPI LIMITED- 10010966 - Incorporated on 17 February 2016 
- DAVID HARRIS JOINERY LTDDissolved- 05379261 - Dissolved on 12 October 2010 
- DAVID HARRIS ACCOUNTANTS LIMITED- 09030897 - Incorporated on 8 May 2014 
- DAVID HARRIS & ASSOCIATES LIMITEDActive - Proposal to Strike off- 08349323 - Incorporated on 7 January 2013 
- DAVID HARRIS FLOORING LTDDisolved- 13375591 - Dissolved on 11 October 2022 
- DAVID HARRIS ENTERPRISES LTDDisolved- 14556279 - Dissolved on 28 May 2024 
- DAVID HARRIS COMMUNICATIONS LIMITEDDissolved- 03619514 - Dissolved on 6 September 2011