- MR NEVILLE JOHNSON LIMITEDDisolved- 13185025 - Dissolved on 11 April 2023 
- MR C JOHNSTON CONSTRUCTION LTDDisolved- NI672022 - Dissolved on 25 January 2022 
- MR NEVILLE JOHNSON & MRS JULIE JOHNSON (GENERAL FINANCE) UK LIMITEDActive - Proposal to Strike off- 08894592 - Incorporated on 13 February 2014 
- BLACKWELL MARTIN JOHN 80007 LIMITED- 08984033 - Incorporated on 8 April 2014 
- JOHN MARTIN TRANSPORT CONSULTANCY LTD- NI720519 - Incorporated on 29 August 2024 
- JOHN MARTIN ACCIDENT REPAIRS LIMITEDDisolved- SC180485 - Dissolved on 27 December 2022 
- JOHN MARTIN CARPENTRY & JOINERY LIMITEDDissolved- 04617280 - Dissolved on 29 July 2014 
- MARTIN JOHN SCHOOL SERVICES LTDActive - Proposal to Strike off- 09556980 - Incorporated on 23 April 2015 
- JOHN MARTIN CARPENTRY & JOINERY LTDDisolved- 11524845 - Dissolved on 24 January 2023 
- MARTIN JOHN EVANS ASSOCIATES LTD- 12522564 - Incorporated on 18 March 2020 
- MARTIN JOHN LAUDER ENTERPRISES LIMITEDActive - Proposal to Strike off- 10148352 - Incorporated on 26 April 2016 
- JOHN MARTIN JOINERY SERVICES LTDDissolved- 05571394 - Dissolved on 28 January 2014 
- QUIRKE BUSINESS CONSULTANTS LTD- 09943979 - Incorporated on 11 January 2016 
- QUIRKE TECHNICAL SERVICES LIMITEDActive - Proposal to Strike off- 08780632 - Incorporated on 19 November 2013 
- STEVE QUIRKE FREELANCE LTD- 09427512 - Incorporated on 6 February 2015 
- QUIRKE PROPERTY SERVICES LIMITEDDisolved- 13427447 - Dissolved on 1 November 2022 
- MARTIN JOHN SCHOOL SERVICES LTDDissolved- 08150256 - Dissolved on 3 March 2015 
- JOHN D MARTIN CONSULTING LIMITEDActive - Proposal to Strike off- 07971184 - Incorporated on 1 March 2012 
- JOHN MARTIN & ASSOCIATES (UK) LIMITED- 06068998 - Incorporated on 26 January 2007 
- QUIRKE STREET MOTORS LTD- 11983962 - Incorporated on 8 May 2019