| KBK Jala Estates Limited | Real estate | 2024 |
| KBN Transport Ltd | Transport & logistics | 2026 |
| KBR Properties Ltd | Real estate | 2026 |
| Kbvibez Limited | Professional & scientific | 2024 |
| KBW South Ltd | Wholesale & retail | 2018 |
| KC Creative Ltd | Professional & scientific | 2022 |
| KC Leicester Ltd | Wholesale & retail | 2018 |
| KC Nurture Care Ltd | Administrative & support | 2024 |
| KC Property Holdings Limited | Real estate | 2018 |
| KC Renewable Energy Consultancy Limited | Administrative & support | 2024 |
| KC TRU Healthcare Solution Ltd | Health & social care | 2022 |
| KCA Recruitment Ltd | Administrative & support | 2017 |
| KCE Home Ltd | Real estate | 2024 |
| Kcgl Ltd | Professional & scientific | 2020 |
| KCL Resources Limited | Health & social care | 2016 |
| KCR Associates Ltd | Administrative & support | 2015 |
| KCS Doors Limited | Construction | 2009 |
| Kcsh Commercials Limited | Financial services | 2020 |
| KD Consolidated Investments Limited | Financial services | 2023 |
| KD Desserts Ltd | Wholesale & retail | 2025 |
| KD Fresh Food Ltd | Wholesale & retail | 2026 |
| KD GAS & Heating Services Ltd | Construction | 2020 |
| KD Investments Ltd | Real estate | 2021 |
| KD Leicester Ltd | Health & social care | 2025 |
| KD Sahi Transport Ltd | Transport & logistics | 2024 |
| KD Trading (UK) Limited | Manufacturing | 2014 |
| KDA Group Holdings Limited | Financial services | 2020 |
| KDA Properties Ltd | Real estate | 2019 |
| Kdfp Medical Limited | Health & social care | 2022 |
| KDJ Trading Ltd | Wholesale & retail | 2015 |
| KDM Holdings Ltd | Financial services | 2016 |
| KDM Retail Ltd | Wholesale & retail | 2018 |
| KDM Studio Ltd | Professional & scientific | 2025 |
| KDP Visioncare Ltd | Health & social care | 2011 |
| KDR Cleaning Services Limited | Other services | 2016 |
| KDR Events (Leicester) Ltd | Other services | 2021 |
| KDR Holdings (Leicester) Ltd | Other services | 2021 |
| KDR Products Ltd | Wholesale & retail | 2021 |
| KDS Financial Solutions Limited | Financial services | 2016 |
| KDS Group Ltd | Manufacturing | 2017 |
| KE11 Limited | Professional & scientific | 2020 |
| Keakais Care Ltd Limited | Health & social care | 2017 |
| Keal Business Services Ltd | Professional & scientific | 2018 |
| Keal Lettings Ltd | Real estate | 2025 |
| Keal Property Services Ltd. | Real estate | 2018 |
| Keary Design Associates Limited | Professional & scientific | 1999 |
| Keates Group Ltd | Financial services | 2026 |
| Kebab and Grill Ltd | Hospitality | 2024 |
| Kebab King Wholesale Limited | Manufacturing | 2006 |
| Kebaba Limited | Hospitality | 2020 |
| Kebabik Ltd | Hospitality | 2022 |
| Keble Consulting Limited | Real estate | 2011 |
| Keeday Leisure Equipment Limited | Administrative & support | 1960 |
| Keeling Joinery Contractors Limited | Construction | 2015 |
| Keen Plastering Ltd | Construction | 2022 |
| Keep Calm Mckenzie Friend Limited | Professional & scientific | 2024 |
| Keep IT Hot Limited | Construction | 2025 |
| Keep Walking Ltd. | Arts & recreation | 2015 |
| Keeplivin Care Ltd | Health & social care | 2020 |
| Kegien Seafood Trading Limited | Wholesale & retail | 2024 |
| Kegs R US (Leicester) Ltd | Wholesale & retail | 2019 |
| KEH Limited | Health & social care | 2022 |
| Keiro Ltd | Information & communication | 2020 |
| Keith Hirons Ltd | Wholesale & retail | 2025 |
| Keith Moore Media Limited | Information & communication | 2021 |
| Keith Ross Limited | Financial services | 2022 |
| Keith Smith (Anstey) Limited | Wholesale & retail | 1996 |
| Keith Smith (Holdings) Limited | Financial services | 2021 |
| Keith Smith (Property) Limited | Real estate | 2021 |
| Keith Thomson Consultants Ltd | Administrative & support | 2007 |
| Kelbenton Limited | Construction | 1991 |
| Kelemassa International Consultancy Ltd | Construction | 2025 |
| Kelin Natalia Limited | Professional & scientific | 2013 |
| Kelley Family LLP | | 2016 |
| Kelliher Media Limited | Professional & scientific | 2026 |
| Kelly Cafe UK Ltd | Hospitality | 2024 |
| Kelly’S Crocodiles Limited | Education | 2019 |
| Kelmark Transport Ltd | Transport & logistics | 2013 |
| Kelsale Expertise Ltd | Transport & logistics | 2015 |
| Kelsey in London Ltd | Professional & scientific | 2022 |
| Kelso Rose Ltd | Wholesale & retail | 2024 |
| Kelstern Ltd | Hospitality | 2015 |
| Kelvin Construction Company Limited | Other services | 2012 |
| Kelway Investments Limited | Real estate | 2026 |
| Kemal Orhan Ltd | Information & communication | 2025 |
| Keme Properties Limited | Real estate | 2018 |
| Kemex Limited | Professional & scientific | 2000 |
| Kempston Leisure Limited | Real estate | 2001 |
| Kempston Refrigeration (Investments) Limited | Real estate | 1969 |
| KEN Applications Limited | Information & communication | 2002 |
| KEN Kleen of Hinckley Limited | Administrative & support | 2017 |
| Kenachibu Services Limited | Public administration | 2018 |
| Kenbo Ltd | Real estate | 2021 |
| Kencot Crucial Ltd | Transport & logistics | 2015 |
| Kendal Cake Ltd | Wholesale & retail | 2025 |
| Kendal Cavendish Ltd | Wholesale & retail | 2024 |
| Kendall Maan Ltd | Construction | 2021 |
| Kendals Lettings Limited | Real estate | 2009 |
| Kengne Medical 2026 Limited | Health & social care | 2026 |
| Keniline Ltd | Information & communication | 2025 |