| Just Fireworks U.K Limited | Wholesale & retail | 2021 |
| Just German Cars Ltd | Wholesale & retail | 2017 |
| Just Halal Butchers Ltd | Wholesale & retail | 2023 |
| Just Haus Limited | Real estate | 2021 |
| Just Humanity | Health & social care | 2025 |
| Just Kidz Parties Ltd | Arts & recreation | 2018 |
| Just Law Limited | Professional & scientific | 2025 |
| Just Peace Initiatives (JPI) | Health & social care | 2009 |
| Just Rope Access Ltd | Construction | 2018 |
| Just the Plough Limited | Hospitality | 2017 |
| JUST4YOU Cakes and Bakes Ltd | Manufacturing | 2026 |
| Justcabbie Ltd | Transport & logistics | 2020 |
| Justfonez Ltd | Wholesale & retail | 2017 |
| Justice Sello Ltd | Health & social care | 2016 |
| Justintime Healthcare Services Limited | Health & social care | 2016 |
| Justintime Resourcing Limited | Administrative & support | 2021 |
| Justintime Training Hub Limited | Education | 2023 |
| Justintime Travel and Tours Limited | Administrative & support | 2016 |
| Justly Digital Ltd | Information & communication | 2020 |
| Jutt Rider Limited | Transport & logistics | 2024 |
| JVD Wood Solutions Ltd | Wholesale & retail | 2015 |
| Jvkd Properties Ltd | Real estate | 2024 |
| JW - Football Academy Ltd | Education | 2026 |
| JW Care and Education Limited | Health & social care | 2019 |
| JW Enterprise Bradford Limited | Transport & logistics | 2025 |
| JW Fabrications & Drafting Ltd | Professional & scientific | 2025 |
| JW Flooring (Supply & Fit) Limited | Construction | 2014 |
| JW Property Network Ltd | Real estate | 2024 |
| JWP Automotive Repairs Ltd | Wholesale & retail | 2023 |
| JWR Autobody Repair Limited | Wholesale & retail | 2025 |
| JWS (Cars) Limited | Transport & logistics | 2004 |
| JWT Plumbing Ltd | Construction | 2025 |
| JX2 Investments Ltd | Real estate | 2020 |
| JZ Optical Ltd | Wholesale & retail | 2022 |
| JZA Consultancy Limited | Information & communication | 2023 |
| Jzclsolutions Ltd | Wholesale & retail | 2019 |
| JZK Services Ltd | Administrative & support | 2019 |
| K & a Driver Solutions Limited | Transport & logistics | 2012 |
| K & G Care Ltd | Health & social care | 2017 |
| K & R Trade Ltd | Health & social care | 2022 |
| K & S Holdingz Limited | Real estate | 2025 |
| K 1 Limited | Health & social care | 2006 |
| K ALI Property Holding Ltd | Real estate | 2026 |
| K and a Brooks PUB Co Ltd | Hospitality | 2015 |
| K Auto (BFD) Ltd | Wholesale & retail | 2021 |
| K B Medical Services Ltd | Health & social care | 2011 |
| K E Real Estates (Yorkshire) Limited | Real estate | 2022 |
| K F T Consultants Limited | Administrative & support | 2015 |
| K Gill Electric Motors Limited | Manufacturing | 2012 |
| K Girl Ltd | Wholesale & retail | 2026 |
| K Green Properties Ltd | Real estate | 2025 |
| K Healthcare Ltd | Health & social care | 2019 |
| K Hutchinson Consulting Limited | Financial services | 2016 |
| K J B Installations Limited | Wholesale & retail | 2003 |
| K J Barbers Shop Limited | Other services | 2022 |
| K K Properties BFD Limited | Real estate | 2016 |
| K Loteoo Ltd | Hospitality | 2026 |
| K M Optical Limited | Health & social care | 2016 |
| K M Trading Yorkshire Ltd | Wholesale & retail | 2021 |
| K Pharma Services Ltd | Health & social care | 2025 |
| K R Taverns Limited | Hospitality | 2023 |
| K S Heating & Plumbing Bradford Limited | Construction | 2020 |
| K S Meds Ltd | Health & social care | 2009 |
| K Shahzadi Ltd | Professional & scientific | 2010 |
| K Sunrise Limited | Other services | 2017 |
| K Whiteley Logistics Ltd | Transport & logistics | 2018 |
| K&A Contractors Limited | Professional & scientific | 2023 |
| K&A Holdings Group Limited | Financial services | 2020 |
| K&A Ministration Limited | Professional & scientific | 2020 |
| K&A Properties Yorkshire Ltd | Real estate | 2024 |
| K&B Store Ltd | Manufacturing | 2026 |
| K&D Foods Limited | Wholesale & retail | 2018 |
| K&G Care Plus Limited | Health & social care | 2022 |
| K&J Accommodation Ltd | Hospitality | 2022 |
| K&J Snacks & Drinks Ltd | Wholesale & retail | 2025 |
| K&K Interiors Limited | Manufacturing | 2025 |
| K&P Home Care Ltd | Health & social care | 2019 |
| K&V Couriers Ltd | Transport & logistics | 2018 |
| K&Y Halal Meat Ltd | Wholesale & retail | 2024 |
| K'S Grill Ltd | Hospitality | 2026 |
| K-Tech (Northern) Limited | Information & communication | 2013 |
| K. a & Associates Ltd | Health & social care | 2019 |
| K. Hall Groundworks Limited | Construction | 2015 |
| K. Horne Projects Limited | Wholesale & retail | 2008 |
| K. Rouse Properties Limited | Real estate | 2020 |
| K.C.A. Supplies Limited | Wholesale & retail | 2001 |
| K.Jadoon & Co Ltd | Professional & scientific | 2018 |
| K.M. Holmes (Bradford) Limited | Real estate | 1978 |
| K.Rouse Electrical Engineer Limited | Administrative & support | 2014 |
| K.S. Services Limited | Information & communication | 1993 |
| K.S. Services Trustees Limited | Administrative & support | 2024 |
| K10 Management Limited | Administrative & support | 2008 |
| K17 Projects Limited | Construction | 2022 |
| K18 Construction Ltd | Construction | 2019 |
| K2 Access Limited | Administrative & support | 2005 |
| K2 Wheels Ltd | Wholesale & retail | 2019 |
| K3 Group Ltd | Real estate | 2022 |
| K7 Developments Ltd | Real estate | 2021 |
| K9 Alert Limited | Administrative & support | 2025 |
| K9 Fertility LAB Ltd | Other services | 2020 |