| Jasmine Holdings Bolton Ltd | Professional & scientific | 2020 |
| Jasmine Patel Limited | Health & social care | 2024 |
| Jason Barnes Transport Ltd | Transport & logistics | 2025 |
| Jason Belmont Limited | Financial services | 2024 |
| Jason Kenny Limited | Administrative & support | 2008 |
| Jason Parkinson Developments Limited | Construction | 2020 |
| Jason Parkinson Land & Development Consultancy Ltd | Professional & scientific | 2013 |
| Jasper Holdings Ltd | Real estate | 2023 |
| Jasperemmett Ltd | Real estate | 2020 |
| Jatam Food Distribution Ltd | Wholesale & retail | 2024 |
| Jatpats Limited | Manufacturing | 2023 |
| Jaus Group Ltd | Wholesale & retail | 2024 |
| JAV Enterprises Ltd | Professional & scientific | 2015 |
| Javaid Communications Ltd | Wholesale & retail | 2016 |
| Javed&Son's Limited | Wholesale & retail | 2025 |
| Javieraguirre Ltd | Professional & scientific | 2013 |
| JAX Group North West Ltd | Construction | 2020 |
| Jaxccess Ltd | Other services | 2022 |
| JAY Ambe Food and Caterers Ltd | Hospitality | 2023 |
| JAY Fostering Limited | Health & social care | 2003 |
| JAY P Alarms Ltd | Administrative & support | 2024 |
| JAY Umiya Food and Caterers Limited | Hospitality | 2025 |
| Jay-Max (Northwest) Limited | | 1987 |
| Jaydanproperties Ltd | Real estate | 2025 |
| Jayip Ltd | Professional & scientific | 2025 |
| Jayj Technologies Ltd | Hospitality | 2025 |
| Jayna Burgess Travel Ltd | Administrative & support | 2024 |
| Jaypen Holdings Ltd | Financial services | 2021 |
| Jayraymonds Group Ltd | Wholesale & retail | 2026 |
| Jays Foodco Ltd | Hospitality | 2023 |
| Jazz Hairdressing Limited | Other services | 2008 |
| Jazz Master Limited | Administrative & support | 2015 |
| JB Adedokun Medicolegal Limited | Professional & scientific | 2012 |
| JB Car Sales (Westhoughton) Ltd | Wholesale & retail | 2005 |
| JB Developments & Properties Ltd | Real estate | 2026 |
| JB Distributions Ltd | Transport & logistics | 2015 |
| JB Fabrications Limited | Professional & scientific | 1991 |
| JB Lettings (Northwest) Ltd | Real estate | 2017 |
| JB Locks Limited | Professional & scientific | 2010 |
| JB Logistics Solutions Ltd | Transport & logistics | 2025 |
| JB Overnight Express Limited | Transport & logistics | 2019 |
| JB Pride Autos Ltd | Wholesale & retail | 2025 |
| JB Transport Solutions Ltd | Transport & logistics | 2025 |
| JB Windows & Doors Ltd | Construction | 2019 |
| JBH Developments Limited | Professional & scientific | 2012 |
| JBK Grounds Maintenance Ltd | Administrative & support | 2017 |
| JBN Gardening Maintenance Limited | Administrative & support | 2023 |
| JBR Electrical Ltd | Manufacturing | 2026 |
| JBR Property Management Ltd | Real estate | 2026 |
| Jbrentnall Digital Limited | Information & communication | 2026 |
| Jbtrim Ltd | Other services | 2026 |
| Jbux Financials Ltd | Financial services | 2025 |
| JC Supplies (North West) Limited | Other services | 2023 |
| Jc&Ma Holdings Ltd | Financial services | 2024 |
| Jc-Ci Consulting Ltd | Professional & scientific | 2025 |
| JCA Accountants Limited | Real estate | 2013 |
| JCB Finance and Systems Limited | Professional & scientific | 2020 |
| JCG Floors Limited | Construction | 2022 |
| JCJ Luxx Limited | Hospitality | 2026 |
| Jclayton Services Limited | Transport & logistics | 2023 |
| JCN Group Ltd | Financial services | 2024 |
| JCS Properties (NW) Ltd | Real estate | 2020 |
| JCT Group Limited | Wholesale & retail | 2020 |
| JCT Ltd | Information & communication | 2025 |
| JCW Acoustic Flooring Limited | Construction | 2012 |
| JCW Acoustic Supplies Limited | Construction | 2004 |
| JCW Floor Screeding Limited | Construction | 1993 |
| JCW GAS Membranes Limited | Construction | 2021 |
| JCW GAS Membranes North West Limited | Construction | 2025 |
| JCW Group Holdings Limited | Professional & scientific | 2012 |
| Jcwn Investments Limited | Professional & scientific | 2023 |
| JD & T Johnson & Co. Limited | Construction | 1999 |
| JD Building & Maintenance Ltd | Construction | 2020 |
| JD Consultant Services Limited | Professional & scientific | 2020 |
| JD Health & Safety Training Services Limited | Other services | 2012 |
| JD Landscapes NW Ltd | Administrative & support | 2025 |
| JD Roebuck Holdings Limited | Financial services | 2012 |
| JD Staircases Limited | Construction | 2022 |
| JD2024 Limited | Financial services | 2024 |
| JDA Properties Midlands Ltd | Real estate | 2025 |
| Jdan Ltd | Construction | 2018 |
| Jdcm Limited | Construction | 2016 |
| Jdel Property Limited | Construction | 2017 |
| JDF Glazing Limited | Construction | 2024 |
| JDG Brands Limited | Wholesale & retail | 2021 |
| JDM Engineering Limited | Professional & scientific | 2014 |
| Jdph Ltd | Health & social care | 2022 |
| JDS Contractors & Joinery Specialists Ltd | Construction | 2024 |
| JDS Online Ltd | Wholesale & retail | 2020 |
| JDS Property Developments Limited | Construction | 2005 |
| JDX Electrical Ltd | Construction | 2015 |
| JE Furniture Ltd | Wholesale & retail | 2016 |
| Jeal LDN Limited | Real estate | 2024 |
| JEC Renovations Ltd | Construction | 2023 |
| JED Lettings Limited | Real estate | 2017 |
| Jedi Estates Ltd | Real estate | 2019 |
| Jedi Homes Limited | Real estate | 2026 |
| Jeffers Escapes Ltd | Real estate | 2025 |
| Jeffers Properties Limited | Hospitality | 2023 |
| Jefford Limited | Real estate | 2015 |