| Kalgidhar Ltd | Administrative & support | 2023 |
| Kalher Ltd | Construction | 2025 |
| Kallar & Sons Ltd | Real estate | 2023 |
| Kalm Logistics Ltd | Transport & logistics | 2025 |
| Kalra Innovations Limited Limited | Construction | 2025 |
| Kalsi Group Construction Ltd | Construction | 2017 |
| Kalsi Maintenances Services Limited | Construction | 2025 |
| KAM Car Hire Ltd | Administrative & support | 2016 |
| KAM Freight Services Limited | Transport & logistics | 2012 |
| KAM London Ltd | Transport & logistics | 2021 |
| KAM Travel Limited | Administrative & support | 2009 |
| KAM Tsin Ltd | Hospitality | 2024 |
| Kamboj Multisolution Ltd | Construction | 2025 |
| Kamboj Partnership Ltd | Professional & scientific | 2014 |
| Kamboj Services Ltd | Administrative & support | 2022 |
| Kamdents Ltd | Wholesale & retail | 2025 |
| Kamilya Ltd | Extraterritorial | 2023 |
| Kanara (PVT) Ltd | Information & communication | 2024 |
| Kanasang Limited | Transport & logistics | 2023 |
| Kandan Ltd | Extraterritorial | 2020 |
| Kandola's Building Merchants Ltd | Wholesale & retail | 2024 |
| Kanech Constructions Ltd | Construction | 2025 |
| Kang GAS & Heating Ltd | Construction | 2025 |
| Kankai Investments Limited | Financial services | 2025 |
| Kansley & Sons Ltd | Transport & logistics | 2020 |
| Kapaas Ltd | Other services | 2018 |
| Kape Strategy Limited | Information & communication | 2012 |
| Kapicam Ltd | Hospitality | 2015 |
| Kapollo Limited | Wholesale & retail | 2013 |
| Kapoor Accessories Ltd | Wholesale & retail | 2025 |
| Kapoor and Son's Food and Wine Limited | Wholesale & retail | 2020 |
| Kapoor Property Holdings Ltd | Real estate | 2024 |
| Kapoor's Driving School Ltd | Education | 2022 |
| Kapour Property Ltd | Real estate | 2019 |
| Kapsons Properties Limited | Real estate | 2022 |
| Karahi Junction Ltd | Hospitality | 2018 |
| Karahi Limited | Hospitality | 2017 |
| Karan Garage Ltd | Wholesale & retail | 2023 |
| Karan Impex Trading Ltd | Wholesale & retail | 2022 |
| Karandj Ltd | Information & communication | 2025 |
| Karankhinda Private Ltd | Construction | 2020 |
| Kard Ventures Limited | Arts & recreation | 2025 |
| Karen GS Consultancy Limited | Professional & scientific | 2015 |
| Kares Resources Limited | Administrative & support | 2023 |
| Kargur International Ltd | Wholesale & retail | 2010 |
| Karisma Solutions Limited | Information & communication | 2000 |
| Karks Limited | Real estate | 2007 |
| Karman Constructions Ltd | Construction | 2026 |
| Karman Enterprises Ltd | Transport & logistics | 2024 |
| Karmann Fashion and Jewellers Limited | Wholesale & retail | 2013 |
| Karmeh Ventures Limited | Financial services | 2024 |
| Karmveer Property Ltd | Real estate | 2024 |
| Karna Food Safety Solutions Limited | Hospitality | 2024 |
| Kartar Haulage Ltd | Water & waste | 2020 |
| Kartarpur CK Limited | Real estate | 2025 |
| Karthik Property Solutions Limited | Real estate | 2026 |
| Karuna Care London Limited | Real estate | 2024 |
| Karwood Properties Ltd | Real estate | 2013 |
| KAS Consortium Ltd | Construction | 2023 |
| Kasbro Limited | Administrative & support | 2009 |
| Kaseey Ltd | Health & social care | 2021 |
| Kash Builderz Ltd | Construction | 2025 |
| Kash Construction London Limited | Construction | 2016 |
| Kash Construction Ltd | Construction | 2016 |
| Kashaf Properties Ltd | Real estate | 2024 |
| Kashish Creations Ltd | Wholesale & retail | 2004 |
| Kashish Food Ltd | Hospitality | 2023 |
| Kashnor Services Ltd | Wholesale & retail | 2016 |
| Kaspas (North END) Ltd | Hospitality | 2017 |
| Katinka Properties Limited | Real estate | 2025 |
| Katonda Jali Limited | Administrative & support | 2016 |
| Katyayani Enterprises Limited | Wholesale & retail | 2023 |
| Kaur Design & Decorations Ltd | Professional & scientific | 2023 |
| Kaur Driving School Limited | Education | 2022 |
| Kaur Household Ltd | Wholesale & retail | 2023 |
| Kaur Kitchen UK Limited | Hospitality | 2026 |
| Kaur Property Investment Ltd | Real estate | 2024 |
| Kaur Supply Ltd | Wholesale & retail | 2026 |
| KAV Arora Ltd | Other services | 2025 |
| KAV Roofing for London Limited | Construction | 2025 |
| Kavalbir Singh Ltd | Construction | 2024 |
| Kavanearts Ltd | Arts & recreation | 2019 |
| Kavin Building Works Ltd | Construction | 2026 |
| Kavya (London) Ltd | Wholesale & retail | 2023 |
| Kawish Ogmax Ltd | Wholesale & retail | 2026 |
| Kaydaman Ltd | Hospitality | 2018 |
| Kaykay Properties Limited | Real estate | 2021 |
| Kayra Living Limited | Wholesale & retail | 2025 |
| Kayvee Legacy & Legal Ltd | Other services | 2026 |
| Kazam Ltd | Information & communication | 2019 |
| KB Enterprises (London) Ltd | Construction | 2019 |
| KB Tech Consultants(Uk) Ltd | Information & communication | 2018 |
| Kbinfosys Limited | Information & communication | 2026 |
| KC Home Builders Ltd | Construction | 2026 |
| KC Raheja Ltd | Transport & logistics | 2025 |
| Kcasadiqi Ltd | Wholesale & retail | 2022 |
| Kcmc Catering Services Ltd | Wholesale & retail | 2023 |
| KCS Cash & Carry Ltd | Wholesale & retail | 2010 |
| KD & DK Ltd | Manufacturing | 2025 |
| KD Kitchen and Bedrooms Ltd | Manufacturing | 2024 |