| Jahansproperties Ltd | Real estate | 2026 |
| Jahconnection.Com Gold 24 Ltd | Manufacturing | 2026 |
| Jahconnection.Com Ltd | Professional & scientific | 2026 |
| Jahlocz Ltd | Other services | 2020 |
| Jahsar Association CIC | Education | 2023 |
| Jahzel Ltd | Transport & logistics | 2020 |
| JAI Investments Ltd | Real estate | 2022 |
| JAI Staircase Ltd | Wholesale & retail | 2019 |
| JAI Vaishno Devi Ltd | Hospitality | 2025 |
| JAI Yasmine Properties Limited | Real estate | 2026 |
| Jaida Care and Supported Living Ltd | Construction | 2023 |
| Jaigirdar Holdings Ltd | Financial services | 2026 |
| Jailan Ltd | Transport & logistics | 2026 |
| Jain Limited | Health & social care | 2009 |
| Jaipur Lounge Ltd | Hospitality | 2010 |
| Jaipurbusinesslounge Ltd | Hospitality | 2025 |
| Jai’S Properties Limited | Real estate | 2023 |
| JAJ Logistics Limited | Transport & logistics | 2018 |
| JAJ Properties Limited | Real estate | 2006 |
| Jajf Limited | Construction | 2024 |
| Jajja Brothers Limited | Wholesale & retail | 2025 |
| Jajja Trading Ltd | Administrative & support | 2017 |
| JAK Tools Limited | Wholesale & retail | 2013 |
| Jak&Nav Ltd | Wholesale & retail | 2022 |
| JAK4U Ltd | Health & social care | 2018 |
| Jakatie Limited | Information & communication | 2007 |
| Jake Transport & Couriers Ltd | Transport & logistics | 2023 |
| Jakebee Ltd | Construction | 2018 |
| Jakedrivercompany Ltd | Public administration | 2025 |
| Jakema Programme Management Limited | Professional & scientific | 2012 |
| Jakes Estates Ltd | Real estate | 2025 |
| Jakfit Online Ltd | Information & communication | 2026 |
| Jaks Properties Ltd | Real estate | 2023 |
| Jaksons Estates Ltd | Real estate | 2016 |
| Jakz Cafe Ltd | Hospitality | 2025 |
| JAL Properties & Investments Ltd | Real estate | 2026 |
| Jalali Travels Limited | Financial services | 2025 |
| Jalandhar Limited | Wholesale & retail | 2025 |
| Jalawadi Consultancy Ltd | Real estate | 2014 |
| Jaldum Enterprises Ltd | Real estate | 2026 |
| Jalebi Limited | Wholesale & retail | 2024 |
| Jalebi Press Limited | Information & communication | 2024 |
| Jalf Bros Ltd | Manufacturing | 2011 |
| Jalgaonkar Orthopaedics Ltd | Health & social care | 2017 |
| Jalgaonkar Properties Ltd | Real estate | 2022 |
| Jalin Designs Intl Ltd | Information & communication | 2023 |
| Jallal Transport Ltd | Transport & logistics | 2016 |
| Jalloh Consultancy Ltd | Health & social care | 2026 |
| Jallow Transporters Limited | Transport & logistics | 2020 |
| Jaluria Family Investment Company | Financial services | 2025 |
| Jaluria Real Estate Ltd | Real estate | 2025 |
| JAM 'N' Vegan Ltd | Hospitality | 2020 |
| JAM JAR Investment Properties Limited | Real estate | 2021 |
| JAM Kitchens and Worktops Ltd | Wholesale & retail | 2023 |
| JAM PAN Food Top Flavours Limited | Hospitality | 2025 |
| JAM Plastering Ltd | Extraterritorial | 2020 |
| JAM Retail Services Ltd | Wholesale & retail | 2026 |
| JAM ROC RUM Punch Limited | Wholesale & retail | 2019 |
| JAM Services Limited | Professional & scientific | 2015 |
| Jama Catering Ltd | Hospitality | 2017 |
| Jama Holdings Ltd | Administrative & support | 2022 |
| Jama Telecom Ltd | Construction | 2025 |
| Jama TM Ltd | Construction | 2024 |
| Jamaal Welfare Foundation | Other services | 2022 |
| Jamaica Food a DI Best Ltd | Hospitality | 2025 |
| Jamaica Fresh Produce Limited | Wholesale & retail | 2011 |
| Jamaica Gold Limited | Manufacturing | 2016 |
| Jamaica Gold Patties Limited | Manufacturing | 2016 |
| Jamaican Life Abroad TV Ltd | Professional & scientific | 2025 |
| Jamaican Yardstyle Enterprise Limited | Wholesale & retail | 2023 |
| Jamal & Co Solutions Ltd | Manufacturing | 2025 |
| Jamals Limited | Hospitality | 2016 |
| Jamari Services Ltd | Professional & scientific | 2021 |
| Jamat Partner Ltd | Wholesale & retail | 2022 |
| Jamati & Co Limited | Hospitality | 2025 |
| Jamcham Ltd | Information & communication | 2016 |
| James & Co Consultants Limited | Administrative & support | 2006 |
| James & Juliana Capital Limited | Financial services | 2025 |
| James Adams Holdings Limited | Financial services | 2025 |
| James Adams Recruitment Limited | Administrative & support | 2020 |
| James Christopher Estates Ltd | Real estate | 2017 |
| James Coley Ltd | Administrative & support | 2019 |
| James Cutler Dance Ltd | Arts & recreation | 2025 |
| James E. Smith (Holdings) Limited | Manufacturing | 2018 |
| James Ernest Optometry Ltd | Health & social care | 2023 |
| James Flux Ltd | Information & communication | 2025 |
| James FOX Holdings Ltd | Administrative & support | 2017 |
| James HAY Brown Limited | Other services | 2023 |
| James Hearing Ltd | Health & social care | 2013 |
| James Holyoak Limited | Arts & recreation | 2024 |
| James Howse Management Limited | Professional & scientific | 2016 |
| James John Davies Limited | Extraterritorial | 2024 |
| James Kadesh Limited | Information & communication | 2021 |
| James Laurence Commercial Limited | Real estate | 2023 |
| James Laurence Developments UK Limited | Real estate | 2011 |
| James Laurence Edgbaston Limited | Real estate | 2013 |
| James Laurence Estate Agents Limited | Real estate | 2004 |
| James Laurence Holdings Limited | Professional & scientific | 2023 |
| James Laurence Lettings Limited | Real estate | 2011 |
| James Lloyd Almshouses Trustee Limited | Administrative & support | 2012 |