| J M Evans Limited | Construction | 2011 |
| J M Portugues Limited | Wholesale & retail | 2011 |
| J M W Collier Limited | Other services | 2019 |
| J Medical Services Ltd | Health & social care | 2015 |
| J Mehta Properties Limited | Real estate | 2026 |
| J Nandha Photo & Cinematography Limited | Information & communication | 2019 |
| J Olah Builders Ltd | Construction | 2021 |
| J P Burners 2015 Ltd | Manufacturing | 2015 |
| J P Household Products Ltd | Wholesale & retail | 2017 |
| J P Indian Foods Ltd | Wholesale & retail | 2017 |
| J P Property Services (Leicester) Ltd | Construction | 2011 |
| J Patel Legal Limited | Professional & scientific | 2026 |
| J Powney Group Limited | Financial services | 2024 |
| J R Allen & Sons Limited | Construction | 2001 |
| J R Hinsley Construction Ltd | Construction | 2013 |
| J R K Limited | Hospitality | 2024 |
| J R Kennedy Limited | Administrative & support | 2013 |
| J R Percival Property Ltd | Agriculture & fishing | 2019 |
| J R S Media (Leic) Ltd | Professional & scientific | 2016 |
| J R Unna & Co Ltd | Professional & scientific | 2022 |
| J S Constructions (Leic) Ltd | Construction | 2021 |
| J S JEX Limited | Construction | 2017 |
| J S Properties (Leicester) Ltd | Real estate | 2025 |
| J S R Francis Limited | Other services | 2010 |
| J S Sandhu Builder Limited | Construction | 2022 |
| J Sagir Courier Ltd | Transport & logistics | 2016 |
| J Saunders Electrical Services Ltd | Construction | 2019 |
| J Scattergood & SON Limited | Wholesale & retail | 2012 |
| J Sheridan Properties Ltd | Real estate | 2025 |
| J Sohal Construction Ltd | Construction | 2021 |
| J T Optics Limited | Health & social care | 2008 |
| J T Vending Solutions Ltd | Wholesale & retail | 2025 |
| J Taylor Construction & Property Maintenance Ltd | Construction | 2023 |
| J TOP1 Limited | Professional & scientific | 2024 |
| J V Events Ltd | Arts & recreation | 2022 |
| J V Fabrics Limited | Wholesale & retail | 2016 |
| J W Investment Wigston Limited | Financial services | 2024 |
| J W Kitchens (Leicestershire) Limited | Construction | 2015 |
| J W Pick Property Ltd | Real estate | 2026 |
| J W Proctor Limited | Construction | 2019 |
| J Willis Plumbing and Heating Ltd | Construction | 2025 |
| J&A Global Services Ltd | Hospitality | 2025 |
| J&A Group Investment Ltd | Other services | 2020 |
| J&A Property Investment Ltd | Other services | 2020 |
| J&A Property Ltd | Real estate | 2018 |
| J&B Car Fresh Ltd | Wholesale & retail | 2018 |
| J&C Dust Bunnies Ltd | Administrative & support | 2021 |
| J&C Health Limited | Health & social care | 2020 |
| J&G UK Transport Ltd | Transport & logistics | 2015 |
| J&H Ventures Ltd | Financial services | 2025 |
| J&J Athwal Transport Ltd | Transport & logistics | 2021 |
| J&K Custom House Ltd | Real estate | 2024 |
| J&K Painting & Decorating Limited | Construction | 2023 |
| J&K Window and Exterior Maintenance Services Ltd | Administrative & support | 2025 |
| J&L Fencing Ltd | Administrative & support | 2015 |
| J&L Property Lettings Ltd | Real estate | 2024 |
| J&L WW Limited | Agriculture & fishing | 2024 |
| J&M Business Services Ltd | Professional & scientific | 2018 |
| J&M UK Properties Limited | Real estate | 2021 |
| J&N Clothing Limited | Wholesale & retail | 2018 |
| J&Nt Ltd | Wholesale & retail | 2022 |
| J&P SPV Ltd | Real estate | 2023 |
| J&S Interior Doors Ltd | Construction | 2025 |
| J&S Jewellers Ltd | Wholesale & retail | 2022 |
| J&S Tennis & Netball Services Limited | Arts & recreation | 2020 |
| J&S Traders Limited | Transport & logistics | 2022 |
| J&Tt Limited | Health & social care | 2015 |
| J&V Fruit & VEG Ltd | Wholesale & retail | 2026 |
| J&W Platinum Properties Ltd | Real estate | 2021 |
| J&Y Wanlip Store Limited | Wholesale & retail | 2023 |
| J'S Screen Print Limited | Manufacturing | 2025 |
| J-Commerce Solutions Ltd | Wholesale & retail | 2024 |
| J. a. Harris Limited | Manufacturing | 2003 |
| J. a. Walker Ltd | Education | 2018 |
| J. D. Restorations Limited | Other services | 2005 |
| J. Dawes & SON Ltd | Construction | 2015 |
| J. Fray Ltd | Construction | 2005 |
| J. Handzus Ltd | Wholesale & retail | 2023 |
| J. Peake IT Analysis Limited | Information & communication | 2017 |
| J. Richardson & Sons Limited | Wholesale & retail | 1959 |
| J. THY Provider Ltd | Health & social care | 2012 |
| J. Tooley's Ltd | Wholesale & retail | 2005 |
| J.A. Clarke & Co. (Plumbers Merchants) 1970 Limited | Construction | 1970 |
| J.A. Kapasi & Co. Limited | Professional & scientific | 2002 |
| J.A.D.E. Plant Hire Limited | Administrative & support | 1996 |
| J.A.G.Sheehy Holdings Limited | Financial services | 2023 |
| J.B.T Joinery Ltd | Construction | 2021 |
| J.C. Acoustics Limited | Manufacturing | 1998 |
| J.C.Smith Electrical Ltd | Construction | 2023 |
| J.Cgardeningservices Ltd | Administrative & support | 2025 |
| J.Clark Electrical Ltd | Construction | 2014 |
| J.Coates (H.G.V. Services) Limited | Education | 1972 |
| J.D. Installations (Hinckley) Ltd | Construction | 2009 |
| J.D. Metalfabs. Limited | Manufacturing | 1990 |
| J.D.J Autos Ltd | Professional & scientific | 2022 |
| J.E.D. Management Consultants Limited | Administrative & support | 2012 |
| J.E.M Building Maintenance Ltd | Construction | 2018 |
| J.F. Developments Limited | | 1986 |
| J.F.Hodgett & Co.Limited | Manufacturing | 1972 |
| J.G Boulton Properties Ltd | Real estate | 2026 |