| JW Logistics (Yorkshire) Ltd | Transport & logistics | 2025 |
| JW Logistics National Ltd | Transport & logistics | 2022 |
| JW Moving Ltd | Transport & logistics | 2025 |
| JW SEO Ltd | Professional & scientific | 2023 |
| JW Therapy Ltd | Health & social care | 2023 |
| JW Wholesalers Ltd | Wholesale & retail | 2026 |
| JW-8 Ltd | Professional & scientific | 2006 |
| Jwhs Property Ltd | Real estate | 2026 |
| Jwiggs Enterprises Ltd | Hospitality | 2018 |
| JWJ Exterior Cleaning Ltd | Wholesale & retail | 2023 |
| JWL Holdings Ltd | Financial services | 2020 |
| JWL Interior Projects Ltd | Construction | 2020 |
| JWM Analysis Limited | Professional & scientific | 2018 |
| JWM Ventures Ltd | Financial services | 2024 |
| Jwmcsorley Investments Ltd | Real estate | 2026 |
| JWR Roofing Limited | Construction | 2007 |
| JWS Joinery & Building Ltd | Construction | 2026 |
| JWT Developments Limited | Construction | 2003 |
| JWT Grange Farm Croft Limited | Construction | 2023 |
| JWT Holdings Ltd | Financial services | 2019 |
| JWT Homes Limited | Construction | 2012 |
| JWT Homes Walnut Farm Limited | Construction | 2022 |
| JWT Realisations Limited | Wholesale & retail | 1927 |
| JX Media Limited | Information & communication | 2025 |
| JXJ Management Ltd | Professional & scientific | 2023 |
| JXK Properties Ltd | Real estate | 2022 |
| JY Estate Ltd | Real estate | 2022 |
| JY SPV Ltd | Real estate | 2024 |
| Jy-Build Ltd | Construction | 2021 |
| Jyothisri Software Solutions Ltd | Information & communication | 2018 |
| JYS House Ltd | Real estate | 2017 |
| JYS Properties Ltd | Real estate | 2021 |
| Jysf Logistics Ltd | Transport & logistics | 2025 |
| JZ Associates Limited | Professional & scientific | 1995 |
| JZ Trade Ltd | Manufacturing | 2018 |
| J’S Resale Limited | Wholesale & retail | 2025 |
| K & a Cleaning Services Group Ltd | Administrative & support | 2025 |
| K & F Landscapping Ltd | Construction | 2025 |
| K & G Properties (Yorkshire) LLP | | 2009 |
| K & HM Ltd | Professional & scientific | 2020 |
| K & I Ventures Ltd | Financial services | 2025 |
| K & K Commercial Plumbing & Heating Ltd | Construction | 2010 |
| K & L Plastering Limited | Construction | 2015 |
| K & M Metals Limited | Wholesale & retail | 2019 |
| K & N Takeaway Limited | Hospitality | 2022 |
| K & P Estates Ltd | Real estate | 2025 |
| K & S Auto's Ltd | Wholesale & retail | 2016 |
| K & S Properties Ltd | Real estate | 2026 |
| K & T Dragon Inn Limited | Hospitality | 2021 |
| K . E Gardening Ltd | Administrative & support | 2024 |
| K a Couriers Ltd | Transport & logistics | 2020 |
| K a Property Developments Limited | Construction | 2021 |
| K and Ryan 2416 Ltd | Transport & logistics | 2022 |
| K Aslam Consultants Limited | Administrative & support | 2015 |
| K B Global Limited | Information & communication | 2026 |
| K B Store (Leeds) Limited | Wholesale & retail | 2020 |
| K Brattley & SON Limited | Construction | 2022 |
| K Brown Finance Partners Ltd | Professional & scientific | 2026 |
| K Browne Civil Engineering Ltd | Construction | 2016 |
| K C Car Sales Limited | Wholesale & retail | 2026 |
| K Cole Group Ltd | Real estate | 2023 |
| K D R Building Services Limited | Construction | 2014 |
| K Electrical Ltd | Construction | 2025 |
| K Force Contractors Ltd | Construction | 2023 |
| K G L S Consultants Limited | Administrative & support | 2012 |
| K Haran Civil Engineering Ltd | Construction | 2015 |
| K Haran Plant Hire Limited | Administrative & support | 2019 |
| K Howard Property Group Limited | Real estate | 2019 |
| K Hudson Group Ltd | Professional & scientific | 2021 |
| K Iqbal Consultancy Limited | Financial services | 2013 |
| K J B Consultancy (Leeds) Limited | Construction | 2014 |
| K J Plumbing Services Limited | Construction | 2025 |
| K K Furniture (Leeds) Ltd | Wholesale & retail | 2010 |
| K Kapur & Company Limited | Real estate | 2005 |
| K Laser Ltd | Manufacturing | 2025 |
| K M D Holdings Limited | Construction | 2017 |
| K Mistry Limited | Administrative & support | 2018 |
| K Mogul Property Limited | Real estate | 2020 |
| K Munot Ltd | Health & social care | 2017 |
| K P Continuum Labs Limited | Information & communication | 2025 |
| K P Laundry Limited | Administrative & support | 2019 |
| K Patel Consultancy Ltd. | Administrative & support | 2015 |
| K Purvis Consulting Ltd | Professional & scientific | 2022 |
| K R L Designs Ltd | Professional & scientific | 2016 |
| K Rental Group Ltd | Administrative & support | 2025 |
| K Rouse Civil Engineers Limited | Construction | 1996 |
| K S Hunjan Associates Limited | Health & social care | 2006 |
| K Shoni Ltd | Wholesale & retail | 2023 |
| K W Builders Limited | Construction | 2003 |
| K W Transport Services Limited | Transport & logistics | 2016 |
| K Y Builders Limited | Administrative & support | 2021 |
| K Z Travel Services Ltd | Professional & scientific | 2020 |
| K Zaman Property Ltd | Real estate | 2025 |
| K&A Property Renovation Ltd | Construction | 2026 |
| K&C Power Engineering Limited | Construction | 2012 |
| K&D Kippax Ltd | Hospitality | 2019 |
| K&E Workshop Ltd | Wholesale & retail | 2025 |
| K&H Security Services Ltd | Administrative & support | 2019 |
| K&Hjones Ltd | Health & social care | 2023 |
| K&K Decorating Ltd | Construction | 2025 |