| JMC Building and Joinery Services Limited | Construction | 2003 |
| JMC Business Developments Limited | Professional & scientific | 2020 |
| JMC Recycling Systems Limited | Manufacturing | 2002 |
| JMC Safety Risk Consultants Limited | Professional & scientific | 2024 |
| JMD Distribution Enterprises Ltd | Wholesale & retail | 2024 |
| JMD Property Services (Nottingham) Ltd | Construction | 2022 |
| JMD Ventures Ltd | Real estate | 2022 |
| Jmdk Properties Limited | Real estate | 2018 |
| JME Courier Limited | Administrative & support | 2016 |
| Jmech Shelter Limited | Real estate | 2026 |
| JMF Chartered Architects Limited | Professional & scientific | 2008 |
| JMF Plastering Ltd | Construction | 2025 |
| Jmga Consulting Limited | Professional & scientific | 2025 |
| Jmguk Pension Trustees Limited | Professional & scientific | 2013 |
| JMH Digital Ltd | Professional & scientific | 2016 |
| JMH Office Services Limited | Professional & scientific | 2006 |
| JMI Fencing Limited | Administrative & support | 2019 |
| Jmic Limited | Real estate | 2020 |
| Jmix Audios Ltd | Arts & recreation | 2026 |
| JMJ Transport Solution Ltd | Transport & logistics | 2024 |
| Jmjdjl Limited | Health & social care | 2025 |
| JMK Racing Holdings Limited | Arts & recreation | 2018 |
| Jmkb Construction Ltd | Construction | 2021 |
| Jmkb Group Ltd | Real estate | 2022 |
| Jmkb Homes (Mapperley) Ltd | Construction | 2026 |
| Jmkb Homes Ltd | Real estate | 2026 |
| Jmkb Infrastructure Ltd | Real estate | 2026 |
| Jmkb Mechanical and Electrical Ltd | Construction | 2026 |
| JMM Sykes Limited | Hospitality | 2010 |
| Jmms Group Ltd | Wholesale & retail | 2025 |
| JMO Car Paint & Body Repair Ltd | Wholesale & retail | 2025 |
| JMP Aluminium Limited | Construction | 2012 |
| JMP Building Services (Nottm) Limited | Construction | 2013 |
| JMP Engineering Services Ltd | Manufacturing | 2019 |
| JMP Holdings Limited | Financial services | 2001 |
| JMR Clinical Coding Ltd | Health & social care | 2016 |
| JMS Designs Ltd | Wholesale & retail | 2022 |
| JMS Scaffolding Ltd | Construction | 2023 |
| Jmsh Ltd | Real estate | 2024 |
| JMT Distribution Ltd | Real estate | 2021 |
| JMT Ecology Ltd | Professional & scientific | 2024 |
| JMT Wealth Ltd | Financial services | 2021 |
| Jmta Holding Ltd | Financial services | 2020 |
| JMV Auto-Salvage Cossall Ltd | Wholesale & retail | 2024 |
| JMW Automotive Ltd | Wholesale & retail | 2024 |
| JMW Bargains Ltd | Wholesale & retail | 2020 |
| JMW Deals Ltd | Wholesale & retail | 2025 |
| JMW Events Ltd | Hospitality | 2021 |
| JMW International Transporte Ltd | Transport & logistics | 2018 |
| JMW Joinery Ltd | Construction | 2026 |
| JMZ Household Ltd | Wholesale & retail | 2023 |
| JN Design Solution Ltd | Construction | 2020 |
| JN PUB Enterprise Ltd | Hospitality | 2019 |
| JNB Interiors Limited | Wholesale & retail | 2006 |
| JNB Transport Limited | Transport & logistics | 2019 |
| Jnboast Ltd | Professional & scientific | 2024 |
| JNG Occasion & Wholesale Cakes Ltd. | Hospitality | 2018 |
| JNK Property Ltd | Construction | 2019 |
| JNM Building Services Limited | Construction | 2013 |
| JNM Composite Manufacturing Ltd | Manufacturing | 2015 |
| JNM Leisure Limited | Hospitality | 2024 |
| JNM Properties Limited | Real estate | 2015 |
| Jnokafor Ltd | Professional & scientific | 2019 |
| JO Fowler Homes Ltd | Real estate | 2026 |
| JO Roome Limited | Professional & scientific | 2021 |
| JO Travels Ltd | Transport & logistics | 2023 |
| Jo&C Building Limited | Construction | 2024 |
| Jo's Beauty Academy Ltd | Other services | 2024 |
| JO1 Ltd | Real estate | 2022 |
| Joanna Toon Wealth Management Limited | Financial services | 2014 |
| Joanne Charlton, Education & Governance Services Limited | Professional & scientific | 2021 |
| JOB Line Consultants Limited | Administrative & support | 2021 |
| JOB One Ltd | Professional & scientific | 2021 |
| Jobarry Services Ltd | Administrative & support | 2012 |
| Jobnest Ltd | Administrative & support | 2024 |
| Jocast Ltd | Professional & scientific | 2014 |
| Joco Learning & Development Limited | Education | 2012 |
| Jodacy Macedo Clinic Ltd | Other services | 2025 |
| Jodie Hazlewood Ltd | Arts & recreation | 2017 |
| Jodie Henson Mortgage & Protection Ltd | Financial services | 2025 |
| Jodie Kitson Photography Ltd | Professional & scientific | 2023 |
| Jodil Ltd | Real estate | 2018 |
| Jodumo Ltd | Health & social care | 2025 |
| JOE Fazer Limited | Information & communication | 2020 |
| JOE Rodgers Ltd | Information & communication | 2010 |
| JOE Taylor Garden Services Ltd | Administrative & support | 2017 |
| Joe's (UK) Access Controls Limited | Information & communication | 2023 |
| Joe's (UK) Ltd | Manufacturing | 2015 |
| Joe's Haven Limited | Wholesale & retail | 2025 |
| Joel Furniture Limited | Other services | 2014 |
| Joewest Ltd | Wholesale & retail | 2023 |
| Joe’S Juice Ltd | Wholesale & retail | 2019 |
| Johal Corporation Limited | Real estate | 1988 |
| Johalco Developments Limited | Construction | 2024 |
| John a. Wells (Grain) Limited | Extraterritorial | 1983 |
| John A.Wells Limited | Agriculture & fishing | 1961 |
| John Blenkiron & Sons Limited | Extraterritorial | 2003 |
| John Brailsford Limited | Construction | 1996 |
| John Brooke (Timber Treatments) Limited | Manufacturing | 2000 |
| John Butler (Holdings) Limited | Professional & scientific | 2001 |