| Jewellery Quarter Records Ltd | Arts & recreation | 2019 |
| Jewellery Valuation Limited | Extraterritorial | 2009 |
| JEWELLERY4YOU Ltd | Wholesale & retail | 2025 |
| Jewellerygram Limited | Professional & scientific | 2003 |
| Jewels by RIA Limited | Wholesale & retail | 2022 |
| Jewels Fashion Home Limited | Wholesale & retail | 2026 |
| JEX Group Ltd | Financial services | 2023 |
| Jexton Property Investments Limited | Real estate | 2024 |
| Jey-Gee Global Ventures Limited | Wholesale & retail | 2025 |
| Jeyhun Limited | Hospitality | 2025 |
| Jeyran Limited | Hospitality | 2025 |
| Jezaya (UK) Ltd | Wholesale & retail | 2012 |
| Jezler&Metelo Investments Ltd | Wholesale & retail | 2017 |
| Jezreel Limited | Wholesale & retail | 2025 |
| JF 852 Ltd | Financial services | 2025 |
| JF Casa Holdings Ltd | Real estate | 2024 |
| JF Civil Engineering Ltd | Construction | 2021 |
| JF Civils Ltd | Construction | 2026 |
| JF Cornwall Limited | Hospitality | 2026 |
| JF Global Supply Chain UK Ltd | Transport & logistics | 2026 |
| JF Luxury Fashion Ltd | Wholesale & retail | 2017 |
| JF Luxury Living Ltd | Hospitality | 2025 |
| JF Plant Hire Ltd | Administrative & support | 2021 |
| JF Plant Hire Midlands Limited | Professional & scientific | 2021 |
| JFA Holdings Limited | Financial services | 2022 |
| JFB Derby Limited | Hospitality | 2019 |
| Jfct Nominees Limited | Extraterritorial | 2006 |
| JFD Solutions Limited | Manufacturing | 2026 |
| JFI Legal Ltd | Professional & scientific | 2019 |
| Jfih Ltd | Financial services | 2024 |
| JFK Audio Visual and Photographic Services Limited | Professional & scientific | 2006 |
| JFK Investments Ltd | Real estate | 2026 |
| JFL 180 Trading Ltd | Hospitality | 2023 |
| Jflu Catering Limited | Hospitality | 2025 |
| JFM Design Limited | Real estate | 1996 |
| JFM Management Group Limited | Real estate | 2018 |
| JFN Properties Ltd | Real estate | 2022 |
| Jfr-It Ltd | Information & communication | 2014 |
| JG Bailey Plumbing and Heating Ltd | Construction | 2018 |
| JG Birmingham Limited | Hospitality | 2018 |
| JG Central Enterprises Ltd | Health & social care | 2025 |
| JG Construction Group Ltd | Construction | 2020 |
| JG Fencing and Landscaping Ltd | Construction | 2023 |
| JG Future Investments Ltd | Real estate | 2025 |
| JG Investment Ventures Ltd | Financial services | 2026 |
| JG Plant Inspections Ltd | Manufacturing | 2024 |
| JG Upskill Limited | Education | 2024 |
| JGB Uppal Holdings Ltd | Wholesale & retail | 2023 |
| JGD Consultancy Limited | Other services | 2018 |
| JGE Estates Limited | Construction | 2002 |
| Jgill Signalling Limited | Construction | 2022 |
| JGM Healthcare Services Ltd | Health & social care | 2018 |
| JGR (JQ) Properties Limited | Real estate | 2021 |
| JGR Logistic Ltd | Transport & logistics | 2018 |
| JGS Holdings Ltd | Professional & scientific | 2023 |
| JGT CAD Designs Ltd | Extraterritorial | 2023 |
| JGT Consulting Services Ltd | Professional & scientific | 2023 |
| JGU Haulage Ltd | Transport & logistics | 2021 |
| JH & Associates Ltd | Hospitality | 2025 |
| JH & JG Properties Limited | Real estate | 2024 |
| JH 1 Group Ltd | Financial services | 2023 |
| JH 852 Ltd | Financial services | 2025 |
| JH BHM Ltd | Hospitality | 2025 |
| JH Build Group Ltd | Construction | 2026 |
| JH Camper Solutions Limited | Wholesale & retail | 2025 |
| JH Car Trade Ltd | Wholesale & retail | 2024 |
| JH Midlands Ltd | Wholesale & retail | 2019 |
| JH Nutrition Limited | Health & social care | 2023 |
| JH Property Maintenance and Renovations Ltd | Construction | 2026 |
| JH Property Services Ltd | Construction | 2019 |
| JH Recovery Ltd | Wholesale & retail | 2022 |
| JH Sharif Ltd | Wholesale & retail | 2024 |
| JH Support Services Ltd | Professional & scientific | 2023 |
| JH Tech Ltd | Construction | 2019 |
| JH TM Limited | Construction | 2026 |
| Jh&R Deol Properties Limited | Real estate | 2022 |
| JH. Beauty Trading Ltd | Wholesale & retail | 2022 |
| JHA Assesors Limited | Professional & scientific | 2019 |
| Jhaan Limited | Wholesale & retail | 2023 |
| Jhackett Ltd | Administrative & support | 2024 |
| Jhag Entertainment Limited | Hospitality | 2014 |
| JHB Assessor Ltd | Health & social care | 2026 |
| JHB2B Ltd | Manufacturing | 2023 |
| JHB2C Ltd | Manufacturing | 2023 |
| Jhbm Consultancy Limited | Education | 2024 |
| JHC (Midlands) Limited | Professional & scientific | 1965 |
| JHD Property Ltd | Construction | 2020 |
| JHE Building Services Limited | Construction | 2023 |
| Jheez Limited | Wholesale & retail | 2014 |
| Jhelum Express Travels Limited | Administrative & support | 2020 |
| Jhelum Properties Ltd | Real estate | 2023 |
| JHF Castings Limited | Manufacturing | 2009 |
| Jhhk Limited | Wholesale & retail | 2014 |
| JHHK2 Ltd | Wholesale & retail | 2018 |
| Jhhp Limited | Professional & scientific | 2025 |
| JHJ Medico Legal Limited | Health & social care | 2010 |
| JHK Amanah Ltd | Professional & scientific | 2015 |
| JHK Capital Ltd | Professional & scientific | 2012 |
| JHK Group Limited | Financial services | 2015 |
| JHKH1 Limited | Wholesale & retail | 2019 |