| J & H Hotel Ltd | Hospitality | 2011 |
| J & H International Transport Ltd | Transport & logistics | 2017 |
| J & H Ltd | Real estate | 2002 |
| J & I Housing Ltd | Real estate | 2021 |
| J & J BAL Consultants Ltd | Real estate | 2019 |
| J & J Fashions Limited | Professional & scientific | 1973 |
| J & J Petcare Limited | Other services | 2017 |
| J & J Solicitors Limited | Professional & scientific | 2025 |
| J & J SZ Limited | Transport & logistics | 2017 |
| J & M Buildings & Maintenance Limited | Construction | 2013 |
| J & M Shawarma Ltd | Hospitality | 2016 |
| J & M Tyres Limited | Wholesale & retail | 2018 |
| J & N Developments Ltd | Real estate | 2005 |
| J & P Investments Ltd | Real estate | 2010 |
| J & R News UK Ltd | Wholesale & retail | 2009 |
| J & R Trading (UK) Limited | Wholesale & retail | 2006 |
| J & S Building Services Limited | Construction | 2009 |
| J & S Gardening Services Ltd | Administrative & support | 2014 |
| J & S New Technologies Ltd | Wholesale & retail | 2017 |
| J & S Piling & Foundations Ltd | Construction | 2007 |
| J & S Plastering and Building Ltd | Construction | 2008 |
| J & T Building Services Limited | Construction | 2005 |
| J & V Enterprise Ltd | Households | 2007 |
| J 8708 Limited | Hospitality | 2015 |
| J a Broadfield (2012) Limited | Manufacturing | 2012 |
| J a Burke Construction Holdings Limited | Financial services | 2025 |
| J a Dowling Services Ltd | Construction | 2018 |
| J a I Trade Ltd | Other services | 2021 |
| J a Kelly Ltd | Health & social care | 2022 |
| J a Mitchell Haulage Limited | Water & waste | 2002 |
| J a Stobo Ltd | Professional & scientific | 2013 |
| J A&B Property Developments Limited | Real estate | 2024 |
| J Abbott Building Services Limited | Construction | 2018 |
| J Amanda Global (UK) Holding PTE Ltd | Financial services | 2016 |
| J and a Infinite Solutions Ltd | Transport & logistics | 2025 |
| J and E Property Holdings Birmingham Ltd | Real estate | 2021 |
| J and E Property Management Ltd | Real estate | 2021 |
| J B Contractors U.K. Ltd | Wholesale & retail | 2021 |
| J B-S 4X4 West Midlands Ltd | Wholesale & retail | 2017 |
| J Bargains Ltd | Wholesale & retail | 2026 |
| J Bevan Property Limited | Real estate | 2025 |
| J Blagan Limited | Real estate | 2010 |
| J Blythe Ltd | Hospitality | 2021 |
| J Brown International Limited | Transport & logistics | 2025 |
| J Byravan Ltd | Extraterritorial | 2012 |
| J C H Surgery Limited | Health & social care | 2014 |
| J C Stores Ltd | Wholesale & retail | 2019 |
| J Campbell Holdings Ltd | Professional & scientific | 2022 |
| J Clare Engineering Limited | Professional & scientific | 2015 |
| J Clare Limited | Professional & scientific | 2022 |
| J Colmore Ltd | Hospitality | 2021 |
| J Construction Solutions Ltd | Construction | 2019 |
| J Craney Catering Services Limited | Hospitality | 2023 |
| J D C Couriers Ltd | Transport & logistics | 2020 |
| J D Exhibition Carpets Ltd | Wholesale & retail | 2015 |
| J D Fixing Limited | Construction | 2013 |
| J D P Fire and Security Ltd. | Administrative & support | 2001 |
| J D Upholstery Limited | Manufacturing | 2004 |
| J Deol Construction Limited | Construction | 2015 |
| J Duggan Training Company Ltd | Professional & scientific | 2023 |
| J E Rhodes Ltd | Real estate | 2023 |
| J Eley Installations Limited | Construction | 2004 |
| J F P Motor Services Limited | Wholesale & retail | 2020 |
| J F Systems Integration Limited | Manufacturing | 2022 |
| J Fowler Roofing Ltd | Administrative & support | 2017 |
| J Furness & Co Limited | Hospitality | 2021 |
| J G Edwards Letting Ltd | Real estate | 2024 |
| J G Energy Solutions Limited | Construction | 2002 |
| J G Investments (Midlands) Ltd | Real estate | 2022 |
| J G L (Decorators) Limited | Construction | 2009 |
| J G Locums Ltd | Health & social care | 2019 |
| J G Plumbing Limited | Construction | 2023 |
| J Green Installations Ltd | Construction | 2012 |
| J H and C a Crowther LLP | | 2011 |
| J H Automotive Ltd | Wholesale & retail | 2015 |
| J Hill Brickwork Ltd | Construction | 2023 |
| J Hussain Limited | Health & social care | 2009 |
| J I Lawrence Ltd | Construction | 2014 |
| J J Auto Electrical Ltd | Wholesale & retail | 2026 |
| J J Cars (Midlands) Ltd | Wholesale & retail | 2020 |
| J J Developments (B'Ham) Limited | Real estate | 1998 |
| J J Ford Transport Limited | Transport & logistics | 2003 |
| J J Vaillant Limited | Extraterritorial | 2014 |
| J Jones Electrical & Facility Services Limited | Construction | 2023 |
| J Joose Limited | Hospitality | 2025 |
| J K Development Group Limited | Real estate | 2021 |
| J K Mistry Ltd | Health & social care | 2023 |
| J K Precious Metals Ltd | Wholesale & retail | 2021 |
| J K Properties Birmingham Limited | Real estate | 2014 |
| J K Property Developments Limited | Real estate | 1988 |
| J K S Convenience Limited | Wholesale & retail | 2026 |
| J Kaur Solicitors Ltd | Professional & scientific | 2024 |
| J Kaur Transport Ltd | Transport & logistics | 2026 |
| J Kelly Gardening and Landscaping Services Limited | Administrative & support | 2024 |
| J Kelly Group Limited | Administrative & support | 2025 |
| J Kelly Property Group Limited | Real estate | 2025 |
| J Kleban Ltd. | Transport & logistics | 2014 |
| J Kobain London Ltd | Wholesale & retail | 2018 |
| J Kobain Ltd | Wholesale & retail | 2018 |
| J L Dargan Property Ltd | Real estate | 2026 |