| Join Import & Export Co., Ltd | Wholesale & retail | 2019 |
| Join This Band Limited | Professional & scientific | 2017 |
| Joli Suffolk Ltd | Wholesale & retail | 2017 |
| Jomoo Limited | Wholesale & retail | 2024 |
| JON Yorke Consultancy Limited | Professional & scientific | 2019 |
| Jones Homes Developments Limited | Construction | 2022 |
| Jonik Engineering Ltd | Information & communication | 2012 |
| Jordan (China) Monopoly Co., Limited | Manufacturing | 2023 |
| Joreal Co., Ltd | Extraterritorial | 2021 |
| Josephine Kitchen Ltd | Hospitality | 2024 |
| Joswil (Group) Limited | Extraterritorial | 2011 |
| Jouloa International Business and Trade Co., Ltd | Extraterritorial | 2019 |
| Jowett Limited | Administrative & support | 2018 |
| Joy Shine Limited | Extraterritorial | 2011 |
| Joy Stream Media Ltd | Information & communication | 2025 |
| Joyful Life International Health Technology Co., Ltd. | Manufacturing | 2023 |
| Joyingsong Development Limited | Wholesale & retail | 2023 |
| Joyou Investment Ltd | Wholesale & retail | 2021 |
| Joyung International Trade Co., Ltd. | Extraterritorial | 2021 |
| JP City Company Ltd | Extraterritorial | 2018 |
| JPC Pharmed Ltd | Professional & scientific | 2009 |
| JPW Mediation Services Limited | Other services | 2025 |
| Jrltmf Trade Limited | Extraterritorial | 2020 |
| JS Homs Ltd | Real estate | 2024 |
| JS Marine Trade Co., Ltd | Extraterritorial | 2015 |
| Jscz Ltd | Information & communication | 2022 |
| JSG Rent Collections Limited | Households | 2026 |
| JSK Consulting (UK) Limited | Professional & scientific | 2013 |
| JSP Delivery Company Limited | Transport & logistics | 2020 |
| JSR Queensberry Limited | Financial services | 2019 |
| JSR Treadstone Limited | Information & communication | 2013 |
| JSS Executive Solutions Limited | Professional & scientific | 2018 |
| JST Property Group Ltd | Households | 2025 |
| Jsvd Properties Limited | Real estate | 2021 |
| JT Brand Management Co., Limited | Wholesale & retail | 2024 |
| Jtlq Financial Consulting Co., Limited | Information & communication | 2023 |
| JTY Control System Limited | Manufacturing | 2025 |
| Juanita Charles Ltd | Real estate | 2025 |
| Judi Love Ltd | Arts & recreation | 2016 |
| Jufuxin Fashion Jewelry Co., Ltd. | Professional & scientific | 2023 |
| Julie Clare Productions Ltd | Arts & recreation | 2016 |
| Julie Marine Co., Ltd. | Extraterritorial | 2019 |
| Jumeaux Ltd | Professional & scientific | 2021 |
| JUN YUE Aquatic Products Co., Ltd. | Extraterritorial | 2016 |
| JUN YUE Co., Ltd. | Extraterritorial | 2023 |
| Jungle Electric Co., Ltd | Extraterritorial | 2022 |
| Junior Golf Academy Services Ltd | Wholesale & retail | 2023 |
| Juniper House Residents' Association Limited | Households | 1995 |
| Junshan High-Tech Medical Technology Co., Ltd. | Wholesale & retail | 2025 |
| Juntos Trade Ltd | Extraterritorial | 2013 |
| Junwei Machinery Trading Co., Ltd | Extraterritorial | 2020 |
| Junzhang BO Limited | Financial services | 2021 |
| Junzilan Industry & Trade Co., Ltd | Extraterritorial | 2018 |
| Jupita Capital Ltd. | Professional & scientific | 2025 |
| Jupiter Academy & Counselling Ltd | Professional & scientific | 2021 |
| Jupiter Media Limited | Information & communication | 2024 |
| Just Marine Engineering UK Co., Ltd. | Manufacturing | 2024 |
| Just Pick Stocks Limited | Information & communication | 2021 |
| JUST1SEAT Ltd | Manufacturing | 2019 |
| Justmae Science and Technology Limited | Wholesale & retail | 2020 |
| Juxin Clothing Trade Co., Ltd | Wholesale & retail | 2024 |
| Juxing Media Co., Ltd | Wholesale & retail | 2026 |
| Juxta Construction Limited | Construction | 2001 |
| JV Cabinets Ltd | Manufacturing | 2025 |
| JV Property Investments Ltd | Real estate | 2020 |
| JW Consultancy Ltd | Professional & scientific | 2026 |
| JW Financial Consultancy Limited | Professional & scientific | 2017 |
| JW Hi-Tech Co., Ltd. | Wholesale & retail | 2020 |
| JW Lettings & Developments Limited | Real estate | 2017 |
| JW90 Limited | Other services | 2016 |
| Jwtv Graphics Limited | Information & communication | 2014 |
| JYD Electronic Technology Ltd | Extraterritorial | 2023 |
| Jyja Transmission Co., Ltd | Extraterritorial | 2013 |
| K & M Development 22 Ltd | Construction | 2022 |
| K & P Properties London Ltd | Real estate | 2020 |
| K Investments Group Ltd | Real estate | 2022 |
| K T Cellar Ltd | Wholesale & retail | 2022 |
| K&Co Ltd | Hospitality | 2026 |
| K&K Interior Design Studio Limited | Professional & scientific | 2024 |
| K&P Homes Ltd | Real estate | 2018 |
| K'S Barber Ltd | Other services | 2025 |
| K-Asia International Trading Limited | Wholesale & retail | 2021 |
| K.C.Sethia(Investments)Limited | Real estate | 1970 |
| K.H. Building Company Limited | Construction | 1997 |
| K24 Ventures Ltd | Information & communication | 2021 |
| KAA Property Limited | Real estate | 2020 |
| Kahvay Ltd | Professional & scientific | 2017 |
| KAI PO International Limited | Extraterritorial | 2010 |
| KAI SAI Houseware Co., Ltd | Extraterritorial | 2018 |
| Kaicheng Industry Ltd. | Extraterritorial | 2019 |
| Kaifu Bearing Co., Limited | Extraterritorial | 2022 |
| Kaili Import and Export Ltd | Extraterritorial | 2023 |
| Kailindun (UK) Technology Co., Ltd | Extraterritorial | 2019 |
| Kailing Shipping Services Co., Ltd | Wholesale & retail | 2023 |
| Kailong Glass Co., Ltd. | Extraterritorial | 2019 |
| Kaima Paper Ltd | Manufacturing | 2015 |
| Kaisi Trading Co., Ltd | Extraterritorial | 2021 |
| Kaixin Industrial Co., Ltd | Professional & scientific | 2020 |
| Kaixing Industry and Trade Co., Ltd. | Manufacturing | 2025 |
| Kaixuan Fluid System Co., Ltd | Extraterritorial | 2019 |