| Jackson Nugent Vintners LimitedHorsham, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1979 |
| Jackson Wine Estates International LimitedUnited Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Jacquart UK LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2024 |
| Jacques Amand International LtdStanmore, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2006 |
| Jadegarden Aul LtdAshton-under-Lyne, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Jakes Food and Wine LimitedWoodford Green, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2004 |
| Jakmob International LimitedCroydon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2012 |
| Jaks Bars & Restaurants LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2010 |
| Jalna Services LtdMiddlesbrough, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2005 |
| James Boylan Safety LtdOmagh, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1958 |
| James e Mc Cabe LtdCraigavon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1975 |
| James Fine Wines LimitedCambridge, United Kingdom · UKjamesfinewines.com · checked 28 Oct 2026 | UK | 0 | – | – | – | – | 2016 |
| James Hall and Company LimitedPreston, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1979 |
| James Hocking Wine LimitedSouthampton, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2019 |
| James Nicholson Wine LimitedUnited Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2006 |
| James Oak & Co LtdHertford, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2026 |
| Jancisrobinson.com LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2003 |
| Jane Street Europe LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2006 |
| Jaoyeh Trading LtdSwansea, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2012 |
| Japan Airlines Co LtdLondon, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Japan Food Express LtdCroydon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2017 |
| JascotsUnited Kingdom · jascots.co.uk · checked 16 Oct 2026 | | – | 35 | France, Spain, ItalyBizkaiko Txakolina, Bierzo | –Premium (producers) | 11% | – |
| Jascots Wine Merchants LtdLondon, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Jastar Capital LimitedLondon, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Jayish LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1969 |
| Jazz Pharmaceuticals UK LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2002 |
| Jazz Trading LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2009 |
| Jb Champagne & Co LtdLondon, United Kingdom · UKjbchampagne.com · checked 28 Oct 2026 | UK | 0 | – | – | – | – | 2018 |
| Jba Corporation LtdPrinces Risborough, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2017 |
| Jean Juviniere LtdGlossop, United Kingdom · UKjeanjuviniere.com · checked 28 Oct 2026 | UK | 0 | – | – | – | – | 1989 |
| Jefferies International LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1986 |
| Jellysmack LimitedWyboston, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2020 |
| Jenkins and Beckers Fine Wine LimitedCambridge, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2015 |
| Jenner and Block London LLPNew Castle, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2023 |
| Jennings Brewery LimitedCockermouth, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2020 |
| Jenny Beavan Designs LimitedWorthing, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2004 |
| Jeroboams LimitedUnited Kingdom · UKjeroboams.co.uk · checked 28 Oct 2026 | UK | 0 | – | – | – | – | 2002 |
| Jet Airways Ltd - UK BranchLondon, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| Jet2.comYeadon, Leeds, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1992 |
| Jetvine Consultancy LtdWalton-on-Thames, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2020 |
| Jf Tobias LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2013 |
| Jfc LimitedHayes, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1992 |
| Jimmy Products UK LimitedRetford, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2020 |
| Jit Catering Services LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2022 |
| Jl Wine Consultancy LimitedFrome, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2017 |
| Joerg Geiger LtdAndover, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 2024 |
| John e Fells & Sons LtdKings Langley, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1920 |
| John F Hunt LimitedGrays, United Kingdom · UKchecked 26 Oct 2026 | UK | 0 | – | – | – | – | – |
| John Lewis PLCLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1928 |
| John Sinclair LtdSheffield, United Kingdom · UKchecked 28 Oct 2026 | UK | 0 | – | – | – | – | 1966 |