| Kendall Transport Limited | Transport & logistics | 2003 |
| Kendell Investment Holdings Ltd | Professional & scientific | 2025 |
| Kenilworth Avenue Ltd | Real estate | 2025 |
| Kenita LMK Ltd | Financial services | 2025 |
| Kenita LMP Ltd | Financial services | 2025 |
| Kennedy Real Estate Ltd | Real estate | 2025 |
| Kennerley Taverns Limited | Hospitality | 2021 |
| Kensington Landmark Limited | Real estate | 2017 |
| Kensington MOT Centre Limited | Wholesale & retail | 2025 |
| Kensington Motor Repairs Ltd | Wholesale & retail | 2019 |
| Kensington Property Solutions Ltd | Other services | 2018 |
| Kensington Weight Loss Clinic Limited | Health & social care | 2025 |
| Kentisol Ltd | Wholesale & retail | 2020 |
| Kents Gym Ltd | Arts & recreation | 2017 |
| Kenza and Fara Ltd | Wholesale & retail | 2023 |
| Kerafresh Fish Ltd | Wholesale & retail | 2025 |
| Keralux Ltd | Other services | 2025 |
| Kerma Holdings Limited | Real estate | 2019 |
| Kerma Trading Limited | Manufacturing | 2019 |
| Kernals Brads Burgers Ltd | Hospitality | 2025 |
| Kershaw & Kershaw Limited | Financial services | 2021 |
| KES (1960) Limited | Construction | 2008 |
| KES LOY Limited | Arts & recreation | 2013 |
| KES Retail Limited | Hospitality | 2019 |
| Kesh Global Foods Limited | Hospitality | 2025 |
| Keswickton Holdings Limited | Real estate | 2016 |
| Keto Home Bakery Bradford Ltd | Hospitality | 2022 |
| Kettlewell Groundworks Limited | Construction | 2018 |
| Kev's K9 Adventures Ltd | Other services | 2022 |
| Kevin DE Bakery Ltd | Wholesale & retail | 2025 |
| Kevins Taverns Limited | Hospitality | 2025 |
| Key 2 Security (Bradford) Locksmiths Limited | Extraterritorial | 2012 |
| Key Bright Limited | Administrative & support | 2022 |
| Key Home Lets Ltd | Real estate | 2026 |
| Key Site Development Ltd | Construction | 2003 |
| Key Training and Learning Ltd | Education | 1997 |
| Key'D UP Automotive Locksmith Ltd | Other services | 2026 |
| Keyan Group Ltd | Real estate | 2021 |
| Keychain Investments Ltd | Real estate | 2017 |
| Keychain Productions Ltd | Extraterritorial | 2013 |
| Keyd Ltd | Wholesale & retail | 2024 |
| Keygrade Academy Ltd | Education | 2025 |
| Keykraftuk Limited | Manufacturing | 2025 |
| Keyland Developments Limited | Construction | 1987 |
| Keypillar Ltd | Real estate | 2025 |
| Keystone Auto Sales Limited | Wholesale & retail | 2025 |
| Keystone Business Hub Ltd | Administrative & support | 2026 |
| Keystone Consultancy Services Ltd | Other services | 2021 |
| Keystone Elite Property Ltd | Real estate | 2026 |
| Keystone Online Ltd | Wholesale & retail | 2025 |
| Keyworker Staff Supply Limited | Administrative & support | 2021 |
| KEZ Autos Ltd | Administrative & support | 2017 |
| Kez's Distribution Ltd | Hospitality | 2026 |
| Kezad Limited | Transport & logistics | 2025 |
| KF Garden Services Limited | Administrative & support | 2024 |
| KF International Holdings Limited | Professional & scientific | 2019 |
| KF Leisure Ltd | Wholesale & retail | 2025 |
| KFA Events Management Ltd | Wholesale & retail | 2024 |
| Kfag Services Limited | Transport & logistics | 2018 |
| Kfhaam Limited | Professional & scientific | 2024 |
| KG Rides Limited | Arts & recreation | 2023 |
| KG Topco Limited | Financial services | 2023 |
| KG Vehicle Movement and Repair Ltd | Wholesale & retail | 2019 |
| KGN Transport Limited | Transport & logistics | 2022 |
| KH Transport and Recovery Services Ltd | Transport & logistics | 2023 |
| Khabra Estates Ltd | Real estate | 2026 |
| Khadija & Imran Ltd | Health & social care | 2017 |
| Khadijah Combat Academy Ltd | Arts & recreation | 2019 |
| Khajakalu Education Ltd | Education | 2025 |
| Khalid & Sons Properties Ltd | Real estate | 2024 |
| Khalid Brothers Ltd | Wholesale & retail | 2019 |
| Khalid Investments Ltd | Real estate | 2018 |
| Khalis Trading Limited | Administrative & support | 2012 |
| Khaly & Co. Limited | Professional & scientific | 2024 |
| Khan Asif Limited | Administrative & support | 2025 |
| Khan Autos Storage and Recovery Ltd | Transport & logistics | 2025 |
| Khan Autowerks Limited | Wholesale & retail | 2020 |
| Khan Bodyworx Limited | Wholesale & retail | 2024 |
| Khan BRO Transport Ltd | Administrative & support | 2024 |
| Khan Car Traders Ltd | Wholesale & retail | 2025 |
| Khan Fashion World Limited | Wholesale & retail | 2019 |
| Khan Frazers Financial Accountants Ltd | Real estate | 2021 |
| Khan Frazers Group Ltd | Wholesale & retail | 2021 |
| Khan Grove Ltd | Real estate | 2024 |
| Khan Housing Group Ltd | Real estate | 2026 |
| Khan Investments (Yorkshire) Limited | Real estate | 2010 |
| Khan Jackson Holdings Ltd | Information & communication | 2026 |
| Khan Motor Sales Ltd | Administrative & support | 2017 |
| Khan Solicitors Limited | Professional & scientific | 2008 |
| Khan Textiles (BFD) Ltd | Other services | 2019 |
| Khan Textiles Limited | Wholesale & retail | 2018 |
| Khan Universal Solutions Ltd | Wholesale & retail | 2025 |
| Khan&Ali Property Holdings Limited | Households | 2024 |
| Khan's Pizza & Shakes Ltd | Hospitality | 2021 |
| Khan-Nur Architects Limited | Professional & scientific | 2025 |
| Khanage Racing Limited | Arts & recreation | 2018 |
| Khananco Ltd | Construction | 2025 |
| Khaneco Logistics Ltd | Transport & logistics | 2024 |
| Khans Fruit & VEG Ltd | Wholesale & retail | 2026 |
| Khans Limited | Administrative & support | 2009 |