| JG Hire and Haulage Ltd | Extraterritorial | 2020 |
| JG Navarro Services Ltd | Health & social care | 2020 |
| JG R&C Ltd | Wholesale & retail | 2025 |
| JG Villalba Euro Ltd | Information & communication | 2025 |
| JGB Limited | Health & social care | 2020 |
| Jgjgtao Trading Co., Ltd | Wholesale & retail | 2024 |
| JH Estate Group Limited | Hospitality | 2025 |
| JH World Trade Ltd | Wholesale & retail | 2023 |
| JH1 Services Ltd | Construction | 2018 |
| JHA Outsourcing Limited | Construction | 2025 |
| Jham Limited | Wholesale & retail | 2014 |
| Jhamra Welfare Organisation CIC | Health & social care | 2025 |
| Jhand Transit Ltd | Transport & logistics | 2025 |
| JHB Global Ltd | Wholesale & retail | 2024 |
| JHC Financial Services Limited | Financial services | 2023 |
| JHD Group Limited | Transport & logistics | 2020 |
| JHENBELOY2407 Ltd | Health & social care | 2026 |
| JHM Traders Ltd | Wholesale & retail | 2021 |
| Jhon Traders Ltd | Wholesale & retail | 2026 |
| Jhonny Foods Ltd | Hospitality | 2025 |
| Jhoom Arts CIC | Arts & recreation | 2025 |
| JHP Homeware Ltd | Wholesale & retail | 2025 |
| Jhpb Bathrooms UK Ltd | Construction | 2020 |
| JHQ Ludlow Limited | Other services | 2017 |
| JHS Etolt Limited | Wholesale & retail | 2025 |
| JHS Novawell Limited | Wholesale & retail | 2025 |
| JHT Asset Management Ltd | Financial services | 2018 |
| JHT Design Ltd | Professional & scientific | 2012 |
| Jhua Trading Ltd | Wholesale & retail | 2021 |
| JHV Protection Ltd | Financial services | 2022 |
| JI Housing Limited | Real estate | 2025 |
| JI Property Ruislip Limited | Construction | 2019 |
| JIA Electric Ceramics Co., Ltd | Extraterritorial | 2018 |
| JIA SHI Xing Limited | Wholesale & retail | 2021 |
| Jiaclink Trading Ltd | Wholesale & retail | 2025 |
| Jiafu Ltd | Wholesale & retail | 2024 |
| Jialiu Ltd | Wholesale & retail | 2024 |
| Jiameng Business Limited | Wholesale & retail | 2024 |
| Jiana Consultancy Ltd | Information & communication | 2018 |
| Jiana Properties Ltd | Real estate | 2024 |
| Jiandan Worldwide Limited | Professional & scientific | 2018 |
| Jianfu Co., Ltd | Wholesale & retail | 2024 |
| Jiangh Ixkz Limited | Wholesale & retail | 2024 |
| Jiangonghe Healthcare Limited | Wholesale & retail | 2024 |
| Jiangxia District Co., Ltd | Wholesale & retail | 2025 |
| Jianie Shoes Co., Ltd | Administrative & support | 2021 |
| Jianli Business Limited | Wholesale & retail | 2025 |
| Jiaqi Limited | Financial services | 2021 |
| Jiashan Goodin IMP and EXP Trade Co., Ltd. | Professional & scientific | 2009 |
| JIB Capital Limited | Professional & scientific | 2018 |
| JIB Commercials Limited | Wholesale & retail | 2020 |
| Jibril Rufau Ltd | Health & social care | 2025 |
| Jidex Ltd | Wholesale & retail | 2023 |
| Jiemao Jiemao Lashes and Beauty Ltd | Other services | 2016 |
| JIG Projects Ltd | Construction | 2024 |
| Jigsaw Box Consulting Limited | Professional & scientific | 2024 |
| Jigson Ltd | Wholesale & retail | 2017 |
| Jijiwa Industries Limited | Extraterritorial | 2019 |
| Jilly Bond Ltd | Education | 2020 |
| Jimbobsbuses Ltd | Administrative & support | 2021 |
| Jimed Limited | Construction | 2018 |
| Jimmy Services Ltd | Manufacturing | 2023 |
| Jimmy Shaw Appointments Ltd | Professional & scientific | 2019 |
| Jimmy Shaw Homes Ltd | Construction | 2019 |
| Jimothy Lacoste Limited | Arts & recreation | 2018 |
| Jinadus Ltd | Manufacturing | 2018 |
| Jinchuan Machinery Limited | Administrative & support | 2019 |
| Jinfengding Europe Limited | Wholesale & retail | 2025 |
| Jing HU LIN TOU Limited | Information & communication | 2021 |
| Jingxiu Co. Ltd | Arts & recreation | 2021 |
| Jinhai Zhao Co., Limited | Professional & scientific | 2012 |
| Jinhow Import & Export (Hongkong) Limited | Professional & scientific | 2009 |
| Jinlu Limited | Wholesale & retail | 2025 |
| Jinmiaoseng Ltd | Wholesale & retail | 2024 |
| Jinmushuihuotu Ltd | Wholesale & retail | 2024 |
| Jinshan Food Co., Ltd | Extraterritorial | 2019 |
| Jinstola Ltd | Information & communication | 2018 |
| Jintailai Ltd | Wholesale & retail | 2021 |
| Jinwoo Objective Ltd | Wholesale & retail | 2025 |
| Jinxiang Trading Co., Ltd | Wholesale & retail | 2025 |
| Jinxin Cardiff Ltd. | Wholesale & retail | 2017 |
| Jinxin Financial Services Limited | Financial services | 2021 |
| JIR Arlanzon Ltd | Information & communication | 2025 |
| Jiraxo Ltd | Wholesale & retail | 2025 |
| Jireh Organics Private Limited | Wholesale & retail | 2023 |
| Jiro Ltd | Manufacturing | 2017 |
| Jiroak Labs Ltd | Information & communication | 2026 |
| JIS Holding Ltd | Real estate | 2021 |
| Jisu Tech Company Ltd | Other services | 2021 |
| JIT Group Ltd | Construction | 2018 |
| Jiusun International Trade Group Co., Limited | Financial services | 2021 |
| Jiuyao Xing Xuan Ltd | Wholesale & retail | 2025 |
| Jiva.Ai Limited | Information & communication | 2019 |
| Jivey's LLP | | 2021 |
| JJ ALL Blinds Ltd | Other services | 2018 |
| JJ Building & Paving Services Limited | Construction | 2019 |
| JJ Covent Garden Ltd | Wholesale & retail | 2016 |
| JJ Daily Fresh Ltd | Wholesale & retail | 2026 |
| JJ Florist Ltd | Wholesale & retail | 2021 |
| JJ Media Facilities Limited | Information & communication | 2013 |