| Jaykam Retail Ltd | Wholesale & retail | 2023 |
| Jaylyne Cars Ltd | Wholesale & retail | 2006 |
| Jazzler Ltd | Hospitality | 2024 |
| JB Content Ltd | Administrative & support | 2020 |
| JB Cooling Services Ltd | Energy | 2017 |
| JB Management Associates Ltd | Professional & scientific | 2022 |
| JB Motorworks Ltd | Wholesale & retail | 2022 |
| JB Shrimpton Ltd | Construction | 2025 |
| JB Window Cleaners Limited | Administrative & support | 2022 |
| JBL Surveying Limited | Professional & scientific | 2011 |
| Jbrp Properties Ltd | Real estate | 2024 |
| JBW Construction Services Limited | Construction | 2017 |
| JC Auto Services Ltd | Wholesale & retail | 2022 |
| JC Auto Works Limited | Wholesale & retail | 2025 |
| JC Cleaners Ltd | Administrative & support | 2025 |
| JC Commercial Spares (Bakewell) Ltd | Wholesale & retail | 2008 |
| JC Family Services Limited | Health & social care | 2026 |
| JCJ Clinical Consultancy Limited | Professional & scientific | 2016 |
| JCT 29 Hiab Hire Ltd | Transport & logistics | 2019 |
| JCT Contract Management Ltd | Professional & scientific | 2020 |
| JD6920S Limited | Arts & recreation | 2012 |
| Jdpropertyrepairs Ltd | Construction | 2026 |
| Jdrdod Ltd | Financial services | 2023 |
| JDT GAS Services Ltd | Construction | 2025 |
| JE Properties (Chesterfield) Limited | Construction | 2017 |
| Jean a Mcewan Consulting Ltd. | Professional & scientific | 2014 |
| Jeanster Ltd | Wholesale & retail | 2024 |
| JEB Plastering Company Ltd | Construction | 2026 |
| Jectabore Limited | Manufacturing | 1996 |
| Jeera Spice House Limited | Hospitality | 2024 |
| JEM Distributions Ltd | Wholesale & retail | 2023 |
| JEM Property Investments Ltd | Real estate | 2018 |
| JEM Property South East Ltd | Real estate | 2022 |
| Jemac Design Limited | Professional & scientific | 2006 |
| Jemelec Limited | Manufacturing | 2007 |
| Jenkinson Consultancy Services Limited | Professional & scientific | 2021 |
| Jenn Edwards & Co Ltd | Other services | 2019 |
| Jennings Engineering Limited | Manufacturing | 2005 |
| Jenrick Estates Ltd | Real estate | 2021 |
| Jentson Limited | Construction | 2010 |
| JEP Training Ltd | Education | 2026 |
| Jepson Salisbury Holdings Limited | Financial services | 2025 |
| Jessica Steele Studios Ltd | Real estate | 2026 |
| Jetafresh Ltd | Administrative & support | 2020 |
| Jetrush Ltd | Administrative & support | 2025 |
| Jetstream Hospitality Solutions Ltd | Information & communication | 2020 |
| Jewel in the Crown (Chesterfield) Limited | Wholesale & retail | 2018 |
| JFG Limited | Construction | 2009 |
| JFJ Civils Ltd | Construction | 2025 |
| JG Travel Services Ltd | Transport & logistics | 2025 |
| JGR Roofing & Leadwork Ltd | Construction | 2023 |
| JH Cars (Chesterfield) Limited | Wholesale & retail | 2010 |
| JHM Crane Hire Ltd | Administrative & support | 2022 |
| JIB Brothers Developments Limited | Hospitality | 2022 |
| JIB Engineering Limited | Construction | 2007 |
| JIM Industries Ltd | Manufacturing | 2021 |
| JJ Aesthetics Ltd | Other services | 2019 |
| JJ Spices Limited | Wholesale & retail | 2023 |
| JJC Accounting Ltd | Professional & scientific | 2012 |
| Jjch Property Holdings Limited | Professional & scientific | 2021 |
| Jjla Capital Limited | Real estate | 2014 |
| JJM Transfers Ltd | Transport & logistics | 2026 |
| Jj’S Catering Ltd | Hospitality | 2023 |
| JK Electrical (UK) Ltd | Construction | 2013 |
| Jkcricket Ltd | Arts & recreation | 2023 |
| JKE Model Shop Limited | Manufacturing | 2022 |
| JKS England Ltd | Arts & recreation | 2015 |
| JL Grocutt Plumbing & Heating Ltd | Construction | 2026 |
| JL Walton Ltd | Real estate | 2025 |
| JLE Premier Properties Ltd | Real estate | 2025 |
| JLK Global Ltd | Information & communication | 2026 |
| JLW Commerce Limited | Wholesale & retail | 2023 |
| JM Building (Chesterfield) Ltd | Construction | 2025 |
| JM Electrical Installations Ltd | Construction | 2018 |
| JM Glass and Glazing Chesterfield Ltd | Construction | 2025 |
| JM Truckcare Ltd | Other services | 2025 |
| Jmcs Engineering Services Ltd | Professional & scientific | 2024 |
| JMM Innovation Holdings Ltd | Financial services | 2022 |
| JMM Innovation Ltd | Wholesale & retail | 2022 |
| Jmrs Technical Services Ltd | Information & communication | 2024 |
| JMS Consultancy (South) Ltd | Hospitality | 2023 |
| JN Joinery & Properties Ltd | Construction | 2026 |
| JN Medical Education Limited | Health & social care | 2020 |
| JO Chapman Aesthetics Ltd | Health & social care | 2020 |
| JO Shackleton Education Limited | Education | 2024 |
| JOA Marketing Ltd | Administrative & support | 2022 |
| JOE Higgins Accountancy Services Limited | Professional & scientific | 2016 |
| Joel’S COW Shed Limited | Real estate | 2021 |
| Joha Limited | Wholesale & retail | 2014 |
| Johari Health Services (UK) Limited | Health & social care | 2018 |
| John Buck Construction Services Limited | Construction | 2011 |
| John Burley Public Relations Consultants Limited | Professional & scientific | 1993 |
| John Ellis Associates Limited | Other services | 2002 |
| John Gransbury Software Engineering Ltd | Information & communication | 2025 |
| John Hurt Estates (UK) Limited | Real estate | 2005 |
| John Roundtree Limited | Real estate | 1977 |
| John West Electrical Maintenance Ltd | Manufacturing | 2012 |
| John Young Consulting Limited | Education | 2008 |
| Johnson Surfacing Limited | Construction | 2002 |
| Johnstonefd Ltd | Professional & scientific | 2022 |