| K&C Decho Ltd | Real estate | 2024 |
| K&H Property Management LLP | | 2017 |
| K&I Investment Limited | Real estate | 2023 |
| K&K Asset Management Consulting Ltd | Professional & scientific | 2026 |
| K&M Asset Management Ltd | Real estate | 2017 |
| K&M J Properties 3 Ltd | Real estate | 2026 |
| K&M J Properties Limited | Real estate | 2018 |
| K&M Property Assets Ltd | Real estate | 2024 |
| K&M Rentals Limited | Real estate | 2018 |
| K&P Executive Travel Ltd | Transport & logistics | 2024 |
| K&P Food and Wine Ltd | Wholesale & retail | 2020 |
| K&S Rope Access Services Ltd | Other services | 2013 |
| K&T Management Solutions Ltd | Construction | 2011 |
| K-Galore Ltd | Wholesale & retail | 2021 |
| K-Mart Limited | Wholesale & retail | 2018 |
| K-Star Learning Academy Ltd | Education | 2024 |
| K-Star Property Investments Ltd | Real estate | 2025 |
| K. R. Interiors Limited | Construction | 2003 |
| K. Weiss Limited | Manufacturing | 1949 |
| K.A. Mcguigan Limited | Manufacturing | 2017 |
| K.A.R Driving School Ltd | Education | 2022 |
| K.C. Construction Ltd | Construction | 2018 |
| K.D. Interiorart Ltd | Construction | 2023 |
| K.G. MAN Consulting Limited | Professional & scientific | 2020 |
| K.G.N Group Company Limited | Information & communication | 2022 |
| K.J. Electrical Services Limited | Construction | 1997 |
| K.K.Catering Equipment Hire Ltd | Hospitality | 2021 |
| K.K.S Consultants Ltd | Professional & scientific | 1995 |
| K.O.L Global Limited | Wholesale & retail | 2012 |
| K.P. Retail Limited | Wholesale & retail | 2003 |
| K.P.D Management Limited | Real estate | 2022 |
| K.S Acquisitions Ltd | Real estate | 2025 |
| K.S Construction Services Ltd | Construction | 2019 |
| K.S.Sasi Ltd | Hospitality | 2025 |
| K1 Headstone Ltd | Real estate | 2015 |
| K10 Football CVS Analysis and Imports of Products Limited | Wholesale & retail | 2023 |
| K1K2PAT Limited | Real estate | 2024 |
| K2 Estates Limited | Real estate | 2013 |
| K2 Headstone London LLP | | 2017 |
| K2 Headstone Ltd | Real estate | 2016 |
| K2GO Ltd | Wholesale & retail | 2004 |
| K2R Estates Ltd | Real estate | 2018 |
| K30 Home Limited | Real estate | 2025 |
| K4 Bakery Ltd | Wholesale & retail | 2025 |
| K4B Europe Holding Limited | Professional & scientific | 2013 |
| K5K Trading Ltd | Wholesale & retail | 2024 |
| K8 Virtua Limited | Professional & scientific | 2011 |
| K888 Limited | Real estate | 2025 |
| KA (Harrow) Ltd | Education | 2025 |
| KA Despatch Ltd | Wholesale & retail | 2025 |
| KA Investments Ltd | Real estate | 2017 |
| KA Property Consultants Ltd | Real estate | 2012 |
| KA Universal Limited | Arts & recreation | 2017 |
| Kaachbo Ltd | Wholesale & retail | 2015 |
| Kaali Fruits and Vegetables Limited | Wholesale & retail | 2026 |
| Kaar Ltd | Health & social care | 2013 |
| Kaasam Properties Ltd | Real estate | 2022 |
| Kabashi Limited | Wholesale & retail | 2012 |
| Kabir Project Solution Limited | Information & communication | 2015 |
| Kabisha Property Limited | Real estate | 2024 |
| Kabras' Bangles Limited | Wholesale & retail | 2018 |
| Kabso Investments Limited | Construction | 2025 |
| Kabul Bazar Limited | Wholesale & retail | 2026 |
| Kabul Korner Ltd | Hospitality | 2022 |
| Kabul Korner Restaurant Ltd | Hospitality | 2026 |
| Kabul Technical Construction Services PVT Ltd | Construction | 2020 |
| Kachhia Samaj (UK) Limited | Other services | 1997 |
| Kaddys Toy Shop Ltd | Wholesale & retail | 2025 |
| Kadera Limited | Information & communication | 2018 |
| Kadey Limited | Construction | 2008 |
| Kadir Gold Ltd | Professional & scientific | 2020 |
| Kadmos Consultants Limited | Professional & scientific | 2006 |
| Kadorebeautykollection Limited | Wholesale & retail | 2020 |
| Kaduna Close Management Company Limited | Real estate | 1971 |
| Kady Holdings Limited | Real estate | 2025 |
| KAE KAE 31 Properties Ltd | Real estate | 2024 |
| KAE KAE Properties Ltd | Households | 2024 |
| KAF Investments Limited | Real estate | 2024 |
| Kafaff Ltd. | Wholesale & retail | 2018 |
| Kafu Property Limited | Hospitality | 2007 |
| KAH Accountancy Services Limited | Professional & scientific | 2023 |
| Kahaaf Limited | Wholesale & retail | 2017 |
| Kahaani Collective Ltd | Other services | 2024 |
| KAI Drycleaners Ltd | Administrative & support | 2025 |
| KAI KAI Corp Ltd | Hospitality | 2010 |
| KAI Smile Ltd | Health & social care | 2023 |
| Kaigami Ltd | Professional & scientific | 2021 |
| Kaiirosara Holdings Limited | Real estate | 2021 |
| Kailash Maruti Property Limited | Real estate | 2022 |
| Kailash Properties Limited | Real estate | 2007 |
| Kailo Group Ltd | Real estate | 2025 |
| Kain Investments Limited | Real estate | 2020 |
| Kairos Domiciliary Care Ltd | Health & social care | 2025 |
| Kaiser London Limited | Wholesale & retail | 2025 |
| Kaito Property Ltd | Real estate | 2017 |
| Kaivonh Ltd | Wholesale & retail | 2025 |
| Kaizen Fitfam Ltd | Arts & recreation | 2022 |
| Kajal Limited | Other services | 2011 |
| Kajal's Childminding Ltd | Health & social care | 2026 |
| Kajchet Ltd | Financial services | 2022 |