| Ksablaw Limited | Professional & scientific | 2018 |
| Ksana Ltd | Wholesale & retail | 2018 |
| KSB Legal Ltd | Professional & scientific | 2020 |
| KSB Properties Leicester Limited | Real estate | 2019 |
| KSB Shoes Ltd | Wholesale & retail | 2016 |
| KSC Consulting Ltd | Professional & scientific | 2020 |
| Kscl Ltd. | Professional & scientific | 2017 |
| Ksct Limited | Real estate | 2016 |
| KSD Haulage Ltd | Transport & logistics | 2021 |
| KSF Trading Ltd | Wholesale & retail | 2024 |
| KSH Properties Ltd | Households | 2024 |
| KSH Transport Ltd | Transport & logistics | 2026 |
| Kshiteej Enterprises Ltd | Administrative & support | 2025 |
| KSJ Regulatory Consultancy Ltd | Professional & scientific | 2026 |
| KSK Medical Limited | Health & social care | 2022 |
| KSK Supplies Ltd | Wholesale & retail | 2026 |
| KSL Investment Group Ltd | Real estate | 2025 |
| KSM Creative Limited | Professional & scientific | 2016 |
| KSP Leicester Ltd | Real estate | 2011 |
| Kspd Limited | Real estate | 2024 |
| Ksrb Properties Ltd | Construction | 2025 |
| KSW Spares Ltd | Professional & scientific | 2025 |
| Ksyruz Limited | Information & communication | 2023 |
| KT Food & Drink Ltd | Manufacturing | 2020 |
| KT Gruszczyk Limited | Other services | 2018 |
| KT Retail Ltd | Wholesale & retail | 2025 |
| KT1 Ltd | Administrative & support | 2017 |
| KTC Healthcare Group Ltd | Public administration | 2024 |
| KTC Online Ltd | Wholesale & retail | 2025 |
| KTJ Imperial Ltd. | Other services | 2019 |
| KTK Care Services Limited | Health & social care | 2023 |
| KTP Estates Limited | Real estate | 2023 |
| KTT Constructions Ltd | Professional & scientific | 2025 |
| KTX Ltd | Real estate | 2024 |
| KU Dental Ltd | Health & social care | 2026 |
| Kubek Developments Limited | Construction | 2019 |
| Kubek Holdings Limited | Financial services | 2019 |
| Kubek Northgate Limited | Real estate | 2019 |
| Kubek Pine Limited | Real estate | 1998 |
| Kubus Leicester Limited | Wholesale & retail | 2019 |
| Kuchhadia Limited | Wholesale & retail | 2002 |
| Kudos Business Consultancy Limited | Professional & scientific | 2014 |
| Kueenie Social Work Consultancy Ltd | Health & social care | 2019 |
| Kuhl Limited | Construction | 2022 |
| Kuinatku Limited | Health & social care | 2026 |
| Kukavty Limited | Professional & scientific | 2015 |
| Kuku London Limited | Wholesale & retail | 2025 |
| Kulafresh Ltd | Wholesale & retail | 2026 |
| Kular Holdings Ltd | Real estate | 2022 |
| Kule Holdings Limited | Financial services | 2026 |
| Kuljit Johal Ltd | Administrative & support | 2016 |
| Kulkarni Health Limited | Health & social care | 2023 |
| Kulkarni Partners Ltd | Education | 2021 |
| Kullar & Daughters Limited | Real estate | 2026 |
| Kullar & Sons Ltd | Real estate | 2025 |
| Kullar Clothing Co. Limited | Manufacturing | 1997 |
| Kullar Enterprises Ltd | Real estate | 2008 |
| Kullar Licence (UK) Ltd | Real estate | 2014 |
| Kullar Trading Ltd | Transport & logistics | 2018 |
| Kullargroup.Com Ltd | Administrative & support | 2006 |
| Kumar and RAJ Ltd | Health & social care | 2019 |
| Kumar Catering and Event Management Limited | Hospitality | 2024 |
| Kumar Financials Services Ltd | Financial services | 2021 |
| Kumar Medical Services Limited | Health & social care | 2010 |
| Kumar Rayns Limited | Construction | 2020 |
| Kumon Leicester Belgrave Ltd | Education | 2025 |
| Kumon Leicester Evington Ltd | Education | 2025 |
| Kunal. P Property Limited | Real estate | 2015 |
| Kunbiolas Ubiquity Resources UK Ltd | Manufacturing | 2026 |
| Kundi Property Limited | Real estate | 2026 |
| Kundlas Transport Ltd | Transport & logistics | 2018 |
| Kundrana Ltd | Wholesale & retail | 2025 |
| Kungfu Ramen Limited | Hospitality | 2022 |
| Kunner Consulting Limited | Professional & scientific | 2026 |
| Kunner Investments Limited | Real estate | 2015 |
| Kunri Kitchen Limited | Hospitality | 2017 |
| Kunroy Community Commercial Services Limited | Administrative & support | 2024 |
| Kunstler Designs Ltd | Construction | 2006 |
| Kurai Ltd | Wholesale & retail | 2025 |
| Kurd Fade Barbers Ltd | Other services | 2025 |
| Kurd Fade Leicester Ltd | Other services | 2024 |
| Kurd Street Food Ltd | Hospitality | 2026 |
| Kurda Restaurant Limited | Hospitality | 2026 |
| Kurdish Barber Leics Ltd | Other services | 2023 |
| Kurdish Community Ltd | Hospitality | 2025 |
| Kurdland Group Limited | Hospitality | 2023 |
| Kureshi Halal Butchers Ltd | Wholesale & retail | 2019 |
| Kurt Brothers Ltd | Construction | 2018 |
| Kurtz Consulting Ltd | Health & social care | 2024 |
| Kush Private Trading Ltd | Wholesale & retail | 2020 |
| Kushi Hatti Ltd | Real estate | 2018 |
| Kushi Health Care Ltd | Health & social care | 2022 |
| Kushi Homes Private Ltd | Real estate | 2026 |
| Kushi Life Limited | Health & social care | 2011 |
| Kuspal and Mawby Ltd | Other services | 2024 |
| Kusprabha RAJ Limited | Information & communication | 2026 |
| Kutchi Hospitality UK Ltd | Hospitality | 2025 |
| Kutumb Kitchen Ltd | Wholesale & retail | 2026 |
| Kuvi Ltd | Information & communication | 2023 |
| Kuzmicz Henderson Limited | Arts & recreation | 1998 |