- JOHN ERNEST PORTER- Born August 1957 - THE ASPEN BUILDING VANTAGE POINT BUSINESS VILLAGE, MITCHELDEAN, GLOUCESTERSHIRE, GL17 0DD 
- John David, Mr. PORTER- Born December 1957 - Brownings Farm Lewes Road, Blackboys, Uckfield, East Sussex, United Kingdom, TN22 5HG 
- JASON DOUGLAS PORTER LIMITEDDisolved- 14053588 - Dissolved on 24 September 2024 
- MR SEBASTIAN ERNEST LIMITEDDisolved- 15342909 - Dissolved on 20 May 2025 
- TLCJ MR N A JOHNSON LIMITEDDisolved- 12680774 - Dissolved on 30 January 2024 
- John Ernest, Mr. COPUS- Born October 1944 - Top Floor West Hill House, Dartford, Kent, United Kingdom, DA1 2EU 
- John Ernest, Mr. COPUS- Born October 1944 - 101 Baston Road, Bromley, Kent, BR2 7BS 
- MR AND MRS JOHNCOCK LTDDissolved- 09566798 - Dissolved on 8 May 2018 
- JOHN PORTER U.K. LIMITEDActive - Proposal to Strike off- SC381285 - Incorporated on 1 July 2010 
- MR PAUL PORTER LIMITED- 06550597 - Incorporated on 1 April 2008 
- Jason John, Mr. HAWKE- Born August 1966 - 4 The Street, Old Basing, Basingstoke, Hampshire, United Kingdom, RG24 7BH 
- ERNEST JOHN RECRUITMENT LIMITED- 15483311 - Incorporated on 12 February 2024 
- MR PORTER BRICKWORK LIMITEDActive - Proposal to Strike off- 11284723 - Incorporated on 29 March 2018 
- MR PORTER CONSTRUCTION LTD- 15311588 - Incorporated on 27 November 2023 
- MR PORTER APOTHECARY LIMITEDActive - Proposal to Strike off- 08430200 - Incorporated on 5 March 2013 
- Jason, Mr. FOO- Born January 1972 - Loom Court Fleur De Lis Street, London, England, E1 6BP 
- JASON MRAZ- Born August 1967 - 320 PARK AVENUE, NEW YORK, NEW YORK, USA, 10022 
- Jason PORTER- Born April 1990 - 169 Hurlingham Road, Liverpool, Merseyside, England, L4 9SR 
- JASON PORTER- Born August 1965 - PINLANDS FARM BINES ROAD, PARTRIDGE GREEN, HORSHAM, WEST SUSSEX, ENGLAND, RH13 8EQ 
- JASON PORTER- Born August 1965 - PINLANDS FARM BINES ROAD, PARTRIDGE GREEN, HORSHAM, WEST SUSSEX, ENGLAND, RH13 8EQ