| Kurd Fade Barber Shop Limited | Other services | 2022 |
| Kurd Styles Barber Ltd | Other services | 2025 |
| Kurdish Barber Headley Park Ltd | Other services | 2025 |
| Kurdish Barbers HS Ltd | Other services | 2026 |
| Kurdish Fade Ltd | Other services | 2025 |
| Kurdish Style Barber Shop Ltd | Other services | 2024 |
| Kureeckal Properties Ltd | Real estate | 2026 |
| Kurian Ltd | Health & social care | 2023 |
| Kurran Singh Dog Training Ltd | Education | 2024 |
| Kurrent Limited | Information & communication | 2018 |
| Kurtisjames. Ltd | Administrative & support | 2024 |
| Kurt’S Taxi Services Limited | Transport & logistics | 2025 |
| Kury UK Limited | Professional & scientific | 2017 |
| Kushbu Limited | Hospitality | 2018 |
| Kushi Group Ltd | Construction | 2024 |
| Kussul Wealth Management Limited | Financial services | 2022 |
| Kuva Limited | Information & communication | 2016 |
| Kuzanchi Limited | Wholesale & retail | 2019 |
| KV Construction and Building Ltd | Construction | 2024 |
| KVJ Associates Limited | Administrative & support | 2018 |
| Kvlm Investments | Professional & scientific | 2026 |
| KVS Coaching Limited | Professional & scientific | 2021 |
| KVZ Ltd | Construction | 2025 |
| KW Civils SW Ltd | Construction | 2024 |
| KW Interiors (South West & Wales) Ltd | Construction | 2020 |
| KW Sales Agents Limited | Wholesale & retail | 2018 |
| Kwamo Group Limited | Real estate | 2025 |
| Kwan & Company Limited | Professional & scientific | 2003 |
| Kwan & LIM Corporation Limited | Financial services | 2023 |
| Kwc(South West) Limited | Construction | 2014 |
| Kwenzi Support Services Ltd | Public administration | 2022 |
| Kwgsouthwest Ltd | Wholesale & retail | 2025 |
| Kwicover Ltd | Extraterritorial | 2015 |
| Kwik Fit Scaffolding Ltd | Construction | 2019 |
| Kwik Move (UK) Limited | Transport & logistics | 1998 |
| Kwik Move Self Storage Ltd | Wholesale & retail | 2018 |
| Kwikfast Supplies Ltd | Wholesale & retail | 2005 |
| KWK Service Ltd | Other services | 2023 |
| KXM Transport Ltd | Transport & logistics | 2025 |
| KY Comfort Stays Ltd | Hospitality | 2025 |
| KYA Blue Ltd | Extraterritorial | 2025 |
| Kybernetes Security Ltd | Information & communication | 2022 |
| Kyle Bignell - Software Development Services Limited | Information & communication | 2023 |
| Kymox Ltd | Information & communication | 2025 |
| Kyneton House Management Company Limited | Real estate | 2004 |
| Kyneton Management Co Limited | Real estate | 2004 |
| Kynfolk Ltd | Professional & scientific | 2018 |
| Kyngesheen Estates Limited | Real estate | 2004 |
| Kyol Group Ltd | Wholesale & retail | 2026 |
| Kyra Medical Ltd | Manufacturing | 2024 |
| KYS Nails Ltd | Other services | 2025 |
| KYT Limited | Information & communication | 2023 |
| KZ Medical Services Limited | Health & social care | 2020 |
| Kzam Innovations Ltd | Information & communication | 2024 |
| Kzam Lettings Limited | Real estate | 2023 |
| Kzango Limited | Extraterritorial | 2015 |
| L & D Carpentry Ltd | Construction | 2012 |
| L & F Commercial Parts Specialists Limited | Wholesale & retail | 1995 |
| L & J Bros. Limited | Construction | 2010 |
| L & K Care Limited | Health & social care | 2014 |
| L & L Motors Limited | Wholesale & retail | 2025 |
| L & O Lettings Ltd | Real estate | 2024 |
| L & P Brailsford Ltd | Construction | 2020 |
| L & P Heating Services Ltd | Construction | 2009 |
| L & T Accountancy Ltd | Professional & scientific | 2023 |
| L & V Trading Ltd | Wholesale & retail | 2013 |
| L a Clark Civil Engineering Ltd | Construction | 1999 |
| L a P Properties (Bristol) Limited | Real estate | 2022 |
| L and M Cole Developments Limited | Construction | 2008 |
| L and S Food Limited | Hospitality | 2018 |
| L B Country Limited | Transport & logistics | 2024 |
| L Brothers Ltd | Wholesale & retail | 2019 |
| L C Cook Ltd | Professional & scientific | 2024 |
| L Doyle Bricklaying Limited | Construction | 2019 |
| L E J Investments Ltd | Financial services | 2021 |
| L Ellis Site Services Ltd | Construction | 2007 |
| L G P Surfacing Limited | Construction | 2003 |
| L H Coaching Limited | Arts & recreation | 2019 |
| L Hames Holdings Ltd | Financial services | 2025 |
| L J Hall & Co Limited | Professional & scientific | 2003 |
| L J L Electrical Ltd | Construction | 2026 |
| L J R H Enterprises Ltd | Information & communication | 2017 |
| L J Repairs Ltd | Wholesale & retail | 2025 |
| L J Roofing & Building Ltd | Construction | 2025 |
| L J T Properties Limited | Real estate | 2006 |
| L J W Carpentry Ltd | Manufacturing | 2026 |
| L James Limited | Information & communication | 2015 |
| L Jones Interiors Limited | Administrative & support | 2016 |
| L K Property Sales Ltd | Real estate | 2021 |
| L Luxe Management Ltd | Real estate | 2025 |
| L M Air Conditioning (Bristol) Ltd | Construction | 2020 |
| L M Heating & Plumbing Ltd | Construction | 2008 |
| L Manch Contour Property Limited | Households | 2024 |
| L Manch Vista Property Limited | Real estate | 2023 |
| L P Electrical (Bristol) Limited | Construction | 2019 |
| L P Foley Civils and Utilities Engineering Limited | Construction | 2015 |
| L Plate Ltd | Education | 2023 |
| L Primero Ltd | Wholesale & retail | 2020 |
| L Rogers Optometry Limited | Wholesale & retail | 2025 |
| L Rowlands Tutoring Trading AS KIP Mcgrath Widnes Ltd | Extraterritorial | 2024 |