| JPE Bathroom Installations Limited | Construction | 2022 |
| JPG Plastering Ltd | Construction | 2026 |
| JPH Enterprises Ltd | Professional & scientific | 2018 |
| JPK Haulage Limited | Transport & logistics | 2003 |
| JPM Property Development Limited | Construction | 2019 |
| JPS Payroll Solutions Ltd | Professional & scientific | 2019 |
| JPS Projects Group Limited | Financial services | 2018 |
| JPS Projects Limited | Construction | 2010 |
| JPS Stores Ltd | Real estate | 2007 |
| Jps-Services Limited | Construction | 2011 |
| Jpsb Consulting Limited | Professional & scientific | 2007 |
| Jptr Bidco Limited | Financial services | 2016 |
| Jptr Midco Limited | Financial services | 2016 |
| Jptr Topco Limited | Financial services | 2016 |
| JPX Online Limited | Wholesale & retail | 2018 |
| JR Images Limited | Other services | 2018 |
| JR25 Limited | Real estate | 2023 |
| Jrbls Ltd | Real estate | 2023 |
| JRC Holdings Limited | Professional & scientific | 2005 |
| JRC Manufacturing Limited | Manufacturing | 2011 |
| JRE GAS Services Limited | Construction | 2023 |
| JRF Civils Ltd | Construction | 2026 |
| JRF Enterprises Ltd | Professional & scientific | 2012 |
| Jrgc Lean SIX Sigma Consulting Limited | Education | 2021 |
| Jrhg Limited | Professional & scientific | 2025 |
| JRM Haulage Services Ltd | Transport & logistics | 2026 |
| JRN Concrete Ltd | Manufacturing | 2024 |
| Jrothwell Transport Services Ltd | Transport & logistics | 2025 |
| JRP Heating & GAS Ltd | Construction | 2023 |
| JRS Barbershop Ltd | Other services | 2021 |
| JS & RS Properties Limited | Real estate | 2019 |
| JS Ally Developments Ltd | Construction | 2024 |
| JS Ally Investments Ltd | Financial services | 2021 |
| JS Ally Properties Ltd | Households | 2019 |
| JS Bond Engineering Limited | Wholesale & retail | 2019 |
| JS Holdings (Bolton) Limited | Financial services | 2020 |
| JS Medical Engineering Limited | Professional & scientific | 2021 |
| JS Prop Co 1 Ltd | Real estate | 2024 |
| JS Treats Ltd | Wholesale & retail | 2025 |
| Js&Kn Ltd | Extraterritorial | 2018 |
| JSA Car Sales Ltd | Wholesale & retail | 2024 |
| JSB Lingerie Limited | Wholesale & retail | 2024 |
| Jsbc Labs Ltd | Information & communication | 2021 |
| Jsbolton Ltd | Wholesale & retail | 2024 |
| JSD Apartments Limited | Real estate | 2018 |
| JSE Electrical Contracting Limited | Manufacturing | 2017 |
| JSE Homes Limited | Construction | 2017 |
| Jsgdesign Ltd | Professional & scientific | 2023 |
| JSK Photography Ltd | Professional & scientific | 2022 |
| JSL Marablanca Limited | Real estate | 2010 |
| JSL Plumbing & Heating Limited | Construction | 2023 |
| Jslf Hire Limited | Transport & logistics | 2014 |
| JSM Properties (North West) Limited | Real estate | 2024 |
| JSM Tiling Ltd | Construction | 2020 |
| Jsquared Ltd | Professional & scientific | 2025 |
| JSR Driving Services Limited | Transport & logistics | 2023 |
| JT & RT Limited | Wholesale & retail | 2019 |
| Jtfcare Limited | Health & social care | 2024 |
| JTH Fire Safety Ltd | Public administration | 2019 |
| JTH Haulage Limited | Transport & logistics | 2016 |
| JTI Acquisition Co (2011) Limited | Financial services | 2011 |
| Jtk-Nines Ltd | Other services | 2024 |
| JTL Haulage Limited | Transport & logistics | 2015 |
| JTL V4.0 Limited | Professional & scientific | 2014 |
| JTN Supplies Limited | Wholesale & retail | 2022 |
| JTS Metals Limited | Construction | 2023 |
| JTS Property Acquisition Limited | Real estate | 2022 |
| JUB JUB Studio Ltd | Arts & recreation | 2020 |
| Juba Holdings Ltd | Real estate | 2018 |
| Jubba Station Limited | Wholesale & retail | 2025 |
| Jubilee (Garages ) Limited | Wholesale & retail | 2009 |
| Judd&Co Ltd | Wholesale & retail | 2025 |
| Jude Services Limited | Administrative & support | 2016 |
| Jugnu Limited | Hospitality | 2025 |
| Juice Electrical Contractors Ltd | Construction | 2022 |
| Juice Solar Ltd | Energy | 2025 |
| Julia Sabery Limited | Wholesale & retail | 2021 |
| Julie Bryan Life Therapy Ltd | Professional & scientific | 2025 |
| Julies Perfumes & Cosmetics Limited | Wholesale & retail | 2003 |
| Julies Plaice Limited | Wholesale & retail | 2024 |
| Juma CG Commercial Plumbing & Heating Ltd | Construction | 2025 |
| Juma CG Decorations & Coatings Ltd | Construction | 2023 |
| Juma CG Fire Doors & Compartmentation Ltd | Construction | 2023 |
| Juma CG Networks & Security Limited | Construction | 2025 |
| Juma Construction Group Ltd | Construction | 2019 |
| Juma Construction NW Limited | Construction | 2026 |
| Jumai Zone Ltd | Wholesale & retail | 2026 |
| Jumani Developments Ltd | Construction | 2020 |
| Jumani Holdings 2 Ltd | Real estate | 2019 |
| Jumani Holdings 3 Ltd | Manufacturing | 2022 |
| Jumani Holdings Limited | Real estate | 2015 |
| Jummy & Kenny Ltd | Health & social care | 2022 |
| Jummywolex Healthcare Services Limited | Administrative & support | 2018 |
| Jummywolex Investments Ltd | Real estate | 2023 |
| Junaed Alam Limited | Administrative & support | 2025 |
| Junction Road Ltd | Hospitality | 2026 |
| Junetide Ltd | Other services | 2008 |
| Jungle Mayhem Limited | Arts & recreation | 2025 |
| Juniper Properties and Lettings Ltd | Construction | 2015 |
| Junix Retail Ltd | Wholesale & retail | 2023 |