| J C Brothers Limited | Construction | 2013 |
| J C Supply Ltd | Administrative & support | 2018 |
| J Clean Limited | Administrative & support | 2008 |
| J Coffey Group Limited | Financial services | 2020 |
| J Coffey Investments Limited | Financial services | 2019 |
| J Coffey Limited | Financial services | 2019 |
| J Coffey Property (Cumberland) Limited | Construction | 2019 |
| J D J Consulting Limited | Information & communication | 2004 |
| J D Tea Limited | Hospitality | 2014 |
| J Dash Limited | Real estate | 2020 |
| J Davis PH Consult Ltd | Construction | 2025 |
| J Dilip Patel Investments Ltd | Real estate | 2022 |
| J GAS Services Ltd | Construction | 2025 |
| J Harrod Accountancy Services Limited | Professional & scientific | 2014 |
| J J Vamathevan Ltd | Professional & scientific | 2025 |
| J Jeffs Limited | Arts & recreation | 2025 |
| J Johal Consultancy Ltd | Professional & scientific | 2015 |
| J K & P (Holding) Ltd | Financial services | 2021 |
| J K Capital Solutions Ltd | Financial services | 2026 |
| J Kara Ltd | Construction | 2013 |
| J Kara Properties Ltd | Real estate | 2020 |
| J Kish Ltd | Real estate | 2016 |
| J Magan Ltd | Health & social care | 2019 |
| J Milan Beauty Limited | Other services | 2014 |
| J Milan Limited | Wholesale & retail | 2014 |
| J Morris Properties Limited | Real estate | 2021 |
| J O S Construction Ltd | Construction | 2008 |
| J P Retailers Limited | Wholesale & retail | 2012 |
| J Penfold Rugs Limited | Wholesale & retail | 2023 |
| J R Contractors Limited | Construction | 2010 |
| J R Station Market Limited | Wholesale & retail | 2004 |
| J Rogerson Carpentry Limited | Construction | 2006 |
| J S Enright Plant & Haulage Ltd | Transport & logistics | 2023 |
| J Sula Construction Ltd | Construction | 2024 |
| J Town Estates Ltd | Real estate | 2021 |
| J Toys Limited | Wholesale & retail | 2026 |
| J V Maintenance and Management Advisory Services Limited | Households | 2025 |
| J V T Films Limited | Information & communication | 2014 |
| J Walker Services Ltd | Professional & scientific | 2023 |
| J ZEN City Ltd | Hospitality | 2023 |
| J&B Investments Ltd | Real estate | 2023 |
| J&F Jewellery Limited | Wholesale & retail | 2021 |
| J&H Healthcare Ltd | Health & social care | 2021 |
| J&J Advisory Limited | Professional & scientific | 2022 |
| J&J Corporation Ltd | Real estate | 2021 |
| J&J Pinnacle Holdings Limited | Financial services | 2024 |
| J&J Premium Construction Ltd | Construction | 2018 |
| J&K Consult Ltd | Construction | 2019 |
| J&K Consultants Ltd | Health & social care | 2014 |
| J&K Home Renovations Limited | Wholesale & retail | 2025 |
| J&L GAS & Renewables Limited | Construction | 2023 |
| J&L Plumbing & Heating Limited | Construction | 2020 |
| J&M Potter Limited | Construction | 2010 |
| J&P Trading Ltd | Wholesale & retail | 2011 |
| J&R Auto Imports (PVT) Ltd | Wholesale & retail | 2026 |
| J&R Couriers Ltd | Transport & logistics | 2024 |
| J&S Corporation Ltd | Wholesale & retail | 2025 |
| J&S Holdings (2019) Ltd | Health & social care | 2019 |
| J&T Amijee Holdings Ltd | Real estate | 2026 |
| J&V Property Consultants Ltd | Real estate | 2022 |
| J&W Maintenance Ltd | Construction | 2023 |
| J&Wei Consulting Ltd | Administrative & support | 2022 |
| J. Geraghty Holdings Ltd | Hospitality | 2025 |
| J. Lindeberg Limited | Administrative & support | 2002 |
| J. Russell (Trading) Limited | Hospitality | 2011 |
| J. W. Express Limited | Transport & logistics | 2015 |
| J.A.M School of Motoring Ltd | Education | 2026 |
| J.B. Developments & Construction Limited | Professional & scientific | 2015 |
| J.C. Computer Services (UK) Limited | Information & communication | 1988 |
| J.D. Stunts Limited | Arts & recreation | 2025 |
| J.D.M. Properties Limited | Construction | 1982 |
| J.E.S. Lighting Ltd | Manufacturing | 2025 |
| J.F. Services Limited | Construction | 1979 |
| J.H Building Solutions Limited | Construction | 2015 |
| J.K.P. Globex Limited | Real estate | 1987 |
| J.Lipert - Independent Social Worker Limited | Health & social care | 2013 |
| J.M.B D&B Ltd | Construction | 2018 |
| J.Mira Enterprise Ltd | Administrative & support | 2024 |
| J.P. Energy Limited | Administrative & support | 2017 |
| J.P.S.P. Properties Limited | Real estate | 2019 |
| J.S.Car Services Limited | Wholesale & retail | 2025 |
| J.Salvatore Limited | Information & communication | 2017 |
| J.T.S. Limited | Real estate | 1984 |
| J3D Investments Ltd | Real estate | 2022 |
| J7 Global Ltd | Information & communication | 2022 |
| JA and Family Ltd | Real estate | 2022 |
| JA Keratin Ltd | Other services | 2025 |
| JA Prime Properties Limited | Real estate | 2024 |
| Ja&A Ltd | Construction | 2024 |
| Jaad Concept Ltd | Arts & recreation | 2025 |
| Jaak Investment Ltd | Real estate | 2020 |
| Jaan Drinks Ltd | Manufacturing | 2026 |
| Jaan Holdings Ltd | Financial services | 2026 |
| Jaarvee Infosolutions Ltd | Information & communication | 2025 |
| Jaas Children’S Homes Ltd | Health & social care | 2025 |
| Jaas Clinic Limited | Other services | 2024 |
| JAB Investors Property Ltd | Real estate | 2024 |
| JAB Medical Ltd | Health & social care | 2021 |
| Jabac Finances Limited | Financial services | 1962 |
| Jabal ALI Development Limited | Real estate | 2017 |