| Keylife Development Limited | Professional & scientific | 2000 |
| Keynnect Ltd | Professional & scientific | 2018 |
| Keynvor Properties Ltd | Real estate | 2024 |
| Keyplan Patoro Limited | Construction | 2022 |
| Keyring Mania Ltd | Wholesale & retail | 2017 |
| Keys and Cribs Ltd | Real estate | 2025 |
| Keysanfix Limited | Other services | 2026 |
| Keyscope Ltd | Wholesale & retail | 2020 |
| Keyspace Property Ltd | Real estate | 2024 |
| Keystone Building and Maintenance Limited | Construction | 1998 |
| Keystone Business Group Limited | Administrative & support | 2021 |
| Keystone Contracts (London) Ltd | Construction | 2022 |
| Keystone Edutech Ltd | Education | 2024 |
| Keystone Properties (Leicester) Limited | Real estate | 2010 |
| Keysus Ltd | Real estate | 2022 |
| Keythorpe Game Limited | Agriculture & fishing | 2005 |
| Keythorpe Manor Ltd | Administrative & support | 2011 |
| Keythorpe Valley Farm Ltd | Agriculture & fishing | 2016 |
| Keyup Limited | Real estate | 1994 |
| Keywest Estate Agents Ltd | Real estate | 2008 |
| Keywest Ltd | Manufacturing | 2025 |
| KEZ Homes Limited | Real estate | 2023 |
| Kezmans Ltd | Wholesale & retail | 2026 |
| KFA Corporate Finance Ltd | Financial services | 2023 |
| KFH Legal Limited | Professional & scientific | 2026 |
| KG Index Ltd | Hospitality | 2015 |
| KG Ironing and Cleaning Services Ltd | Administrative & support | 2022 |
| KG London Limited | Hospitality | 2014 |
| KG Packing Ltd | Administrative & support | 2023 |
| KG Riverside Accountants Ltd | Professional & scientific | 2019 |
| KG Short Stay Express Ltd | Hospitality | 2017 |
| KGA Investments Limited | Construction | 2017 |
| KGB Electrics Ltd | Construction | 2013 |
| KGB Grounds Maintenance Limited | Administrative & support | 2013 |
| KGE Fire Security Data Ltd | Administrative & support | 2021 |
| KGF Consultants Ltd | Wholesale & retail | 2015 |
| KGF Property Solutions Ltd | Real estate | 2025 |
| KGJ Transport Ltd | Transport & logistics | 2024 |
| Kgkm Ltd | Health & social care | 2022 |
| KGL Group Ltd | Construction | 2023 |
| KGN Consultants Ltd | Administrative & support | 2019 |
| KGN Distribution Ltd | Transport & logistics | 2024 |
| KGN Foods & Drinks Ltd | Wholesale & retail | 2020 |
| KGN Holdings Ltd | Real estate | 2024 |
| KGN Taxis Ltd | Transport & logistics | 2022 |
| KGN Technologies Ltd | Information & communication | 2022 |
| KH Ceramics Limited | Construction | 2015 |
| KH Customs Limited | Wholesale & retail | 2023 |
| KH Holistics Limited | Health & social care | 2025 |
| Khaadfar Limited | Hospitality | 2023 |
| Khabib Group (Holdings) Limited | Financial services | 2026 |
| Khabra Enterprises Limited | Wholesale & retail | 2004 |
| Khadgi Limited | Wholesale & retail | 2021 |
| Khads Deals Ltd | Wholesale & retail | 2021 |
| Khair Limited | Wholesale & retail | 2018 |
| Khaira Property Limited | Real estate | 2020 |
| Khairun Properties Limited | Real estate | 2024 |
| Khakh Ltd | Real estate | 2026 |
| Khakharia&Co Ltd | Wholesale & retail | 2025 |
| Khalas Trading Limited | Manufacturing | 2026 |
| Khaleej Foods Ltd | Hospitality | 2023 |
| Khalid Bana Limited | Professional & scientific | 2018 |
| Khalsa Decoration UK Ltd | Professional & scientific | 2025 |
| Khalsa Immigration Solutions Limited T/A Truevisa Advisers Ltd | Professional & scientific | 2025 |
| Khan Collects Limited | Wholesale & retail | 2025 |
| Khan E-Commerce Limited | Wholesale & retail | 2016 |
| Khan Medical Consulting Ltd | Health & social care | 2023 |
| Khan Medical Services Ltd | Health & social care | 2025 |
| Khan&Dan Ltd | Wholesale & retail | 2024 |
| Khanda Production Limited | Construction | 2009 |
| Khanna Events Ltd | Professional & scientific | 2014 |
| Khanna Petroleum Limited | Wholesale & retail | 2013 |
| Khannam Ltd | Wholesale & retail | 2026 |
| Khans Traders Limited | Wholesale & retail | 2022 |
| Khansia Group Ltd | Wholesale & retail | 2022 |
| Khardine Gray Books Ltd | Wholesale & retail | 2017 |
| Kharel & Co Ltd | Real estate | 2025 |
| Khatkar Investments Limited | Real estate | 2022 |
| Khattique Limited | Wholesale & retail | 2025 |
| Khaya Enterprise Limited | Health & social care | 2017 |
| Khayan Limited | Real estate | 2020 |
| Khayr K Ltd | Financial services | 2025 |
| Khazz Limited | Real estate | 2025 |
| Khbc Consultants Limited | Professional & scientific | 2023 |
| KHD (PVT) Limited | Wholesale & retail | 2024 |
| KHD Enterprises Ltd | Real estate | 2020 |
| KHD Studio Ltd | Professional & scientific | 2025 |
| Khelo Sports Limited | Wholesale & retail | 2024 |
| Khergam Muslim Society | Other services | 1997 |
| Kheri Convenience Store Ltd | Wholesale & retail | 2025 |
| Kheya Consultancy (Leicester) Limited | Transport & logistics | 2018 |
| Khidmat UL ILM Travels Ltd | Hospitality | 2022 |
| Khilen Limited | Real estate | 2020 |
| Khilgi & Sons Ltd | Wholesale & retail | 2024 |
| Khilji Associates Limited | Wholesale & retail | 2016 |
| Khilji Group Limited | Other services | 2016 |
| Khinda Renovations Ltd | Construction | 2026 |
| KHJ Estates Limited | Real estate | 2024 |
| KHK Consultancy Limited | Professional & scientific | 2024 |
| KHL Construction Limited | Construction | 2006 |