| Kingstanding Barbers Limited | Other services | 2018 |
| Kingstanding Car Sales Ltd | Wholesale & retail | 2014 |
| Kingstanding Florists Ltd | Wholesale & retail | 2011 |
| Kingstanding Kitchen Limited | Wholesale & retail | 2026 |
| Kingstanding RAW Feed 1 Ltd | Wholesale & retail | 2022 |
| Kingstanding Shop Ltd | Wholesale & retail | 2019 |
| Kingston Design Limited | Construction | 2014 |
| Kingston Grange House Management Company Limited | Households | 2023 |
| Kingston Noble Career Consultancy Limited | Administrative & support | 2017 |
| Kingston Town Development Ltd | Real estate | 2021 |
| Kingston Town Holdings Ltd | Real estate | 2025 |
| KINGSTON6 Events Company Ltd | Hospitality | 2025 |
| Kingstone Grange (Hereford) Resident Management Company Limited | Households | 2019 |
| Kingstone Surface Ltd | Construction | 2024 |
| Kingsway General Stores Limited | Professional & scientific | 2007 |
| Kingswood Colomendy Limited | Education | 2006 |
| Kingswood Laws Advocates Ltd | Professional & scientific | 2024 |
| Kingswood Learning and Leisure Group Limited | Education | 1997 |
| Kingswood Legal Limited | Professional & scientific | 2007 |
| Kingswood Property Developments Limited | Construction | 2016 |
| Kingswood Real Estate and Management Limited | Hospitality | 2023 |
| Kingswright Solicitors Limited | Professional & scientific | 2017 |
| Kington Limited | Construction | 2002 |
| Kington Process Systems Limited | Manufacturing | 1998 |
| Kington Scaffold Ltd | Construction | 2013 |
| Kington Way Properties (Yardley) Ltd | Professional & scientific | 2005 |
| Kingyork Group Limited | Manufacturing | 2021 |
| Kingz Barber Shop Ltd | Other services | 2024 |
| Kinik Investment Limited | Real estate | 2019 |
| Kinitos BIO Ltd | Professional & scientific | 2026 |
| Kinnane Roofing & Guttering Services Ltd | Construction | 2026 |
| Kinneh's Services Limited | Health & social care | 2016 |
| Kinnin Technologies Ltd | Information & communication | 2024 |
| Kinross Investments Limited | Real estate | 2025 |
| Kinsack Limited | Health & social care | 2022 |
| Kinsale Capital Limited | Financial services | 2026 |
| Kinsatak Commercial Services Limited | Professional & scientific | 2024 |
| Kinsey Clark Limited | Administrative & support | 2017 |
| Kinsham Ltd | Financial services | 2024 |
| Kinship Housing & Support Limited | Real estate | 2018 |
| Kinsman Homes Ltd | Real estate | 2023 |
| Kinsman Lets Ltd | Real estate | 2025 |
| Kinsteller’S Estates Ltd | Real estate | 2025 |
| Kinswell Holdings Ltd | Financial services | 2026 |
| Kint Ltd | Information & communication | 2023 |
| Kintsugi Developments Ltd | Real estate | 2024 |
| KIO Travel Ltd | Administrative & support | 2026 |
| Kionii Ltd | Wholesale & retail | 2018 |
| KIP Mcgrath Bedford North Ltd | Administrative & support | 2017 |
| Kiqui Ltd | Information & communication | 2006 |
| KIR Clothing Ltd | Wholesale & retail | 2017 |
| Kiraman Recruitment Ltd | Administrative & support | 2014 |
| Kiramso Living Ltd | Construction | 2023 |
| Kiran Jewellers Limited | Wholesale & retail | 2014 |
| Kiran Ladwa Ltd | Health & social care | 2025 |
| Kiran RAO Sweet Shop Limited | Manufacturing | 2025 |
| Kiran Sehmi Consulting Limited | Health & social care | 2026 |
| Kiran Transport Ltd | Transport & logistics | 2019 |
| Kiran. K. Hayer Ltd | Professional & scientific | 2016 |
| Kirani Limited | Wholesale & retail | 2025 |
| Kiran’S Exclusive Limited | Wholesale & retail | 2017 |
| Kirat Enterprise Limited | Real estate | 2016 |
| Kirat Holdings Ltd | Financial services | 2022 |
| Kirby Klad Ltd | Construction | 2023 |
| Kirby's Converting Machinery Limited | Manufacturing | 1993 |
| Kirbys Deserts Ltd | Hospitality | 2026 |
| Kirit Housing Ltd | Administrative & support | 2016 |
| Kirk & Moore Limited | Administrative & support | 2021 |
| Kirk-Gould Ltd | Professional & scientific | 2025 |
| Kirkdale Estates Limited | Real estate | 1986 |
| KIRKGATEE4L Limited | Hospitality | 2019 |
| Kirklee Holdings Ltd | Financial services | 2026 |
| Kirkpatrickpalmerinvestments Ltd | Real estate | 2023 |
| Kirksteads Group Limited | Professional & scientific | 2025 |
| Kirmell Holdings Limited | Professional & scientific | 2001 |
| Kirmell Limited | Manufacturing | 1985 |
| Kirmell Properties Limited | Real estate | 2000 |
| Kirmell Property Holdings Limited | Financial services | 2018 |
| Kirmell Trade Holdings Limited | Financial services | 2018 |
| Kirsty Louise Coope Limited | Extraterritorial | 2023 |
| Kirsty Markland Ltd | Extraterritorial | 2024 |
| Kirt Investments Ltd | Real estate | 2021 |
| Kiruzaru Limited | Information & communication | 2025 |
| Kirwan Oliver Real Estates Ltd | Real estate | 2018 |
| Kisanet T. B. Ltd | Information & communication | 2025 |
| Kisban UK Limited | Health & social care | 2013 |
| Kismat Halal Meat Limited | Manufacturing | 2017 |
| Kismat Investments Limited | Financial services | 2020 |
| Kismet (Fate) Limited | Hospitality | 2008 |
| Kismetessence Ltd | Manufacturing | 2026 |
| Kiso Holdings Ltd | Professional & scientific | 2026 |
| Kiss ME Cupcakes Ltd | Manufacturing | 2008 |
| Kistech Limited | Information & communication | 2024 |
| Kiswa Foods Ltd | Wholesale & retail | 2012 |
| Kiswah Limited | Hospitality | 2026 |
| Kiswahili Lutheran Church Limited | Other services | 2024 |
| KIT Cabin (Holdings) Limited | Financial services | 2025 |
| KIT Cabin Limited | Administrative & support | 2020 |
| KIT Consult Ltd | Other services | 2023 |
| KIT Haul Ltd | Wholesale & retail | 2025 |