| JOE Hardy Fitness Limited | Other services | 2026 |
| JOE Hayman Roofing Limited | Construction | 2021 |
| JOE Keenan Productions Limited | Information & communication | 2014 |
| JOE Knows Photo UK Limited | Professional & scientific | 2015 |
| JOE Lightz PVT Limited | Hospitality | 2024 |
| JOE Long Golf Ltd | Arts & recreation | 2022 |
| JOE Marler Ltd | Other services | 2012 |
| JOE Moore Decorating Limited | Construction | 2024 |
| JOE Moore Roofing Ltd | Construction | 2024 |
| JOE Moss Electrics Ltd | Construction | 2024 |
| JOE Nemeth (Engineering) Limited | Professional & scientific | 2006 |
| JOE Powell Golf Ltd | Manufacturing | 2023 |
| JOE Power Electrical Contractors Ltd | Construction | 2026 |
| JOE Pring Ltd | Construction | 2018 |
| JOE Westby Ltd | Professional & scientific | 2023 |
| Joe's Bakery Limited | Wholesale & retail | 2013 |
| Joe's Plumbing Limited | Professional & scientific | 2007 |
| Joeal Ltd | Health & social care | 2020 |
| Joeboba Holdings Limited | Financial services | 2024 |
| Joel Antony Ltd | Administrative & support | 2025 |
| Joel B Company Limited | Manufacturing | 2019 |
| Joel Palmer Limited | Professional & scientific | 2024 |
| Joel Pharma Ltd | Wholesale & retail | 2024 |
| Joelle Hairdressing Ltd | Other services | 2013 |
| Joelma Holdings Limited | Financial services | 2025 |
| Joemorris Care Services Ltd | Health & social care | 2020 |
| Joey Gardiner Limited | Information & communication | 2015 |
| Joeys Magic Rolls Ltd | Hospitality | 2025 |
| Joe’S Hutt Ltd | Wholesale & retail | 2025 |
| Joff Lowson Ltd | Information & communication | 2016 |
| Joffy James Productions Ltd | Manufacturing | 2022 |
| JOG on Digital Ltd | Professional & scientific | 2023 |
| Jogi Consultancy Limited | Information & communication | 2019 |
| Joglekar Pathology Consultancy Limited | Health & social care | 2016 |
| Johafiky Investments Limited | Real estate | 2014 |
| Johda Property Ltd | Real estate | 2019 |
| John Bastin & Sons Electrical Ltd | Manufacturing | 2021 |
| John Baylis FDR Limited | Real estate | 2022 |
| John Baylis Leisure Limited | Real estate | 1997 |
| John Baylis Limited. | Real estate | 1994 |
| John Boyce Plasterwork Limited | Administrative & support | 2015 |
| John Cabot Ventures Limited | Education | 1995 |
| John Chatham Classics Ltd | Manufacturing | 2023 |
| John Childs (Wellington) Limited | Professional & scientific | 1969 |
| John Childs Limited | Construction | 1959 |
| John Chris Coffee Limited | Hospitality | 2012 |
| John Clancy Plumbing & Heating Ltd | Construction | 2011 |
| John Coughlan Associates Ltd | Professional & scientific | 2021 |
| John Davis Ltd | Professional & scientific | 2023 |
| John Downer Productions Limited | Information & communication | 1989 |
| John E Morgan Ltd | Information & communication | 2018 |
| John Greenwood Financial Advice Services Limited | Professional & scientific | 2026 |
| John Grimshaw & Associates Ltd | Construction | 2010 |
| John Hodgson JNR. Limited | Professional & scientific | 1959 |
| John Howard Consultancy Limited(The) | Professional & scientific | 1978 |
| John Jago Construction Limited | Construction | 2005 |
| John MEE Construction Limited | Construction | 1993 |
| John Notton Ltd | Wholesale & retail | 2004 |
| John Perkins Construction Ltd | Construction | 1992 |
| John Quinn Property Limited | Administrative & support | 2016 |
| John Rowe Coaching Ltd | Extraterritorial | 2021 |
| John S. Roberts Builders Limited | Construction | 2018 |
| John Sheppard Butchers Limited | Wholesale & retail | 1992 |
| John Sheppard Direct Limited | Wholesale & retail | 2008 |
| John Silverthorne Electrical Limited | Construction | 2013 |
| John Street Acquistions Ltd | Hospitality | 2022 |
| John Street Holdings 2021 Limited | Hospitality | 2021 |
| John Stuart Associates Limited | Administrative & support | 2002 |
| John Taphouse Consulting Ltd | Professional & scientific | 2018 |
| John Thresher Transport Limited | Transport & logistics | 2008 |
| John Titcombe Limited | Wholesale & retail | 1998 |
| John Whewall Construction Limited | Construction | 2014 |
| John Wright Modelmaking Limited | Information & communication | 2002 |
| John.Carley Properties Ltd | Real estate | 2025 |
| Johnny LI Ltd | Information & communication | 2022 |
| Johnny Mann Scenic Services Ltd | Information & communication | 2011 |
| Johnovia Ltd | Real estate | 2024 |
| Johns Accountancy Limited | Professional & scientific | 2015 |
| Johns Foundation | Health & social care | 2022 |
| Johns Supreme Fried Chicken Limited | Hospitality | 2021 |
| Johnson Building Group Ltd | Construction | 2021 |
| Johnsons Central Holdings Limited | Professional & scientific | 1925 |
| Johnston Surgical Services Ltd | Health & social care | 2024 |
| Johnstone Land (Holdings) Limited | Professional & scientific | 2020 |
| Johnstone Land (South West) Ltd | Real estate | 2016 |
| Johnstone Land Company (Bristol) Limited | Construction | 2015 |
| JOI Properties Ltd | Construction | 2015 |
| Join Academic Recruitment Ltd | Professional & scientific | 2024 |
| Join Dates Ltd | Information & communication | 2019 |
| Joint Medical Experts Limited | Health & social care | 2022 |
| Joint Systems & Solutions Group Ltd | Information & communication | 2026 |
| Joint Trans Service LP | | 2011 |
| Jointchain Property Management Limited | Real estate | 1987 |
| Jointek Ltd | Construction | 2005 |
| Jojo Aesthetics Ltd | Health & social care | 2021 |
| Jojo's Retail Ltd | Wholesale & retail | 2022 |
| Jokoto Productions Limited | Manufacturing | 2025 |
| Jokoto Tailoring and Alterations Limited | Other services | 2017 |
| Jolie MJ & Co Ltd | Public administration | 2021 |
| Jollie Pubs Ltd | Hospitality | 2023 |