| Joyenry Limited | Transport & logistics | 2017 |
| Joyful Technology Limited | Information & communication | 2020 |
| Joyin UK Corp Limited | Wholesale & retail | 2022 |
| JOZ Project Services Ltd | Construction | 2026 |
| JP Baron Ltd | Hospitality | 2025 |
| JP Baron Outside Ltd | Hospitality | 2026 |
| JP Boarding Ltd | Wholesale & retail | 2024 |
| JP Building (Leeds) Ltd | Construction | 2025 |
| JP Durham Ltd | Financial services | 2010 |
| JP Electrical (Leeds) Limited | Construction | 2012 |
| JP Fabrications (Morley) Limited | Manufacturing | 2001 |
| JP Financial Consulting Ltd | Professional & scientific | 2023 |
| JP Games Limited | Wholesale & retail | 2014 |
| JP Law Solicitors Ltd | Professional & scientific | 2015 |
| JP Medical Services Limited | Health & social care | 2016 |
| JP Nugent Plumbing & Heating Limited | Construction | 2020 |
| JP Plastering Limited | Construction | 2017 |
| JP Property Maintenance Services Ltd | Construction | 2023 |
| JP Woodworx Ltd | Manufacturing | 2025 |
| JPB Communications Ltd | Information & communication | 2024 |
| JPB Sports Group Ltd | Professional & scientific | 2020 |
| JPC Commercials Limited | Wholesale & retail | 2023 |
| JPC Property Group Ltd | Real estate | 2023 |
| Jpcp NO.2 Limited | Households | 2009 |
| JPD Investment Properties Limited | Real estate | 2024 |
| JPD Optics Limited | Health & social care | 2007 |
| Jpex Ltd | Professional & scientific | 2025 |
| JPG (Leeds) Limited | Professional & scientific | 2001 |
| JPG (Middle East and North Africa) Limited | Professional & scientific | 2013 |
| JPG Consulting Group Limited | Professional & scientific | 2015 |
| JPG Estates Ltd. | Real estate | 2017 |
| JPG Ventures Limited | Professional & scientific | 2018 |
| Jpgv Trustees Limited | Administrative & support | 2022 |
| JPH Services (N/E) Limited | Professional & scientific | 2012 |
| JPI Consulting Limited | Professional & scientific | 2019 |
| JPJ (Flooring Contractors) Limited | Construction | 2013 |
| JPK Consultancy Limited | Professional & scientific | 2007 |
| JPK Motors Ltd | Wholesale & retail | 2017 |
| Jpkp Properties Ltd | Real estate | 2017 |
| Jplf Limited | Information & communication | 2024 |
| Jplh Limited | Health & social care | 2022 |
| JPM Reddington Properties Limited | Real estate | 2021 |
| Jpmr Properties Limited | Real estate | 2025 |
| JPN Limited | Professional & scientific | 2008 |
| Jpope Limited | Professional & scientific | 2026 |
| Jprl Estates Limited | Real estate | 2024 |
| JPS (Leeds) Ltd | Construction | 2024 |
| JPS Investment & Management Limited | Real estate | 2021 |
| JPS Machinery Ltd | Wholesale & retail | 2009 |
| JPT Courier Ltd | Transport & logistics | 2025 |
| JPT Property Partnership Ltd | Real estate | 2023 |
| Jpto Developments Ltd | Construction | 2021 |
| JQ Solutionz Ltd | Education | 2024 |
| JR Accident Repair Centre Limited | Wholesale & retail | 2009 |
| JR Autobodies Ltd | Wholesale & retail | 2026 |
| JR Fast Food (Leeds) Ltd | Hospitality | 2015 |
| JR Mcgarva Ltd | Agriculture & fishing | 2007 |
| JR Saunders Consulting Ltd | Professional & scientific | 2024 |
| JR Tree Work Ltd | Administrative & support | 2012 |
| JR Video Ltd | Information & communication | 2022 |
| JR1 Medical Limited | Health & social care | 2017 |
| JRB Accounting Limited | Professional & scientific | 2026 |
| JRB Advisory Ltd | Real estate | 2013 |
| JRB Cardiac Limited | Health & social care | 2021 |
| JRB Electrical Contractors (Yorkshire) Ltd | Construction | 2025 |
| JRC Contractors Limited | Construction | 2018 |
| JRC Cooling Ltd | Energy | 2026 |
| JRC Electrical Contractors (Leeds) Ltd | Construction | 2024 |
| JRC LDS Ltd | Health & social care | 2022 |
| JRC Yorkshire Ltd | Administrative & support | 2025 |
| JRG Projects Ltd | Construction | 2015 |
| JRH Energies Ltd | Professional & scientific | 2025 |
| JRH Pipefitting Services Limited | Construction | 2015 |
| Jrjaflv LLP | | 2024 |
| JRK Business Services Ltd | Transport & logistics | 2020 |
| JRL Training and Security Limited | Administrative & support | 2025 |
| JRM Joinery Ltd | Construction | 2026 |
| JRM Partnership Ltd. | Real estate | 2017 |
| JRP Coinco Investments Ltd | Financial services | 2020 |
| JRR Gardens Ltd | Agriculture & fishing | 2016 |
| JRS Futures Ltd | Health & social care | 2016 |
| JRS Motorcycles Ltd | Wholesale & retail | 2017 |
| JRS Pharmacies Limited | Health & social care | 2011 |
| JRS Wheels Limited | Wholesale & retail | 2025 |
| Jrse Limited | Real estate | 2019 |
| JRT Strategic Insights Ltd | Information & communication | 2026 |
| JRY Design and Build Limited | Construction | 2024 |
| JS & SON Engineering Ltd | Professional & scientific | 2022 |
| JS Drainage Solutions Ltd | Water & waste | 2016 |
| JS Foster TM Ltd | Construction | 2018 |
| JS PVT Holdings Ltd | Administrative & support | 2024 |
| JS Red Investments Limited | Financial services | 2024 |
| JS Technical Consulting Ltd | Professional & scientific | 2026 |
| JS Tennis Coaching Ltd | Education | 2024 |
| JS Visuals Ltd | Professional & scientific | 2024 |
| JS Webster (UK) Limited | Administrative & support | 2024 |
| JS Windows and Shopfront Ltd | Manufacturing | 2023 |
| JSA Luxe Escapes Ltd | Real estate | 2022 |
| JSA Medics Ltd | Health & social care | 2014 |
| JSA Retreats Ltd | Real estate | 2022 |