| K&H Rentals Ltd | Real estate | 2024 |
| K&M Stores Ltd | Wholesale & retail | 2025 |
| K-Brix Buildtech Ltd | Construction | 2025 |
| K. Sheehan & Sons Ltd | Construction | 2017 |
| K.La Fame Ltd | Other services | 2025 |
| K.N. Automotive Limited | Manufacturing | 2024 |
| K4S Prostaff Limited | Administrative & support | 2025 |
| KA Auto Vibes Ltd | Wholesale & retail | 2023 |
| Kabir Arora Properties Ltd | Real estate | 2025 |
| Kabir Kitchen & Furniture Limited | Manufacturing | 2025 |
| Kabras Tasty Eats Ltd | Hospitality | 2024 |
| Kabras' Jewellery Ltd | Wholesale & retail | 2015 |
| Kabul Bazaar Limited | Wholesale & retail | 2012 |
| Kabul Express Restaurant Ltd | Hospitality | 2018 |
| Kabul Foods (UK) Limited | Real estate | 2011 |
| Kabuli Flame Grill Ltd | Hospitality | 2026 |
| Kabuli Grill Limited | Hospitality | 2024 |
| Kadett Properties Limited | Real estate | 2004 |
| KAE Creations Limited | Manufacturing | 2015 |
| Kahlon Driving Ltd | Transport & logistics | 2019 |
| Kahlon Saab Ltd | Manufacturing | 2024 |
| Kahna Constructions Limited | Construction | 2024 |
| Kaizen Boxing UK Limited | Arts & recreation | 2025 |
| Kaizen Corporation Ltd | Information & communication | 2024 |
| Kakar T Ltd | Financial services | 2026 |
| Kakkar & Vohra Properties Ltd | Real estate | 2023 |
| Kakkar & Vohra Real Estate Ltd | Real estate | 2025 |
| Kakkar Brothers Ltd | Real estate | 2025 |
| Kakkar Homes Ltd | Real estate | 2018 |
| Kalason Executive Bristol Limited | Transport & logistics | 2023 |
| Kallah Builders Limited | Construction | 2025 |
| Kallha Bros Ltd | Wholesale & retail | 2025 |
| Kallha Developments Ltd | Construction | 2024 |
| Kalp PVT Limited | Real estate | 2023 |
| Kalra & Sons Ltd | Real estate | 2020 |
| Kalra Enterprises UK Ltd | Wholesale & retail | 2023 |
| Kalra Optics Ltd | Health & social care | 2026 |
| Kalsi Ayurveda Ltd | Wholesale & retail | 2019 |
| Kalsi Global Logistics Ltd | Transport & logistics | 2025 |
| Kamal Food & Wine Ltd | Wholesale & retail | 2019 |
| Kamal Mehmi Construction Ltd | Construction | 2025 |
| Kamaldeep Ltd | Construction | 2025 |
| Kamawal Limited | Wholesale & retail | 2019 |
| Kamboj Sons Ltd | Hospitality | 2024 |
| Kamology Limited | Other services | 2013 |
| Kamron Limited | Real estate | 2019 |
| Kandola UK Construction Limited | Construction | 2021 |
| Kang Builders Ltd | Construction | 2025 |
| Kangee Consultants Limited | Health & social care | 2012 |
| Kangee Properties Limited | Real estate | 2017 |
| Kanija Properties Ltd | Real estate | 2022 |
| Kans Logistics Ltd | Transport & logistics | 2024 |
| Kanzah Ltd | Wholesale & retail | 2020 |
| Kapil Shanth Limited | Wholesale & retail | 2019 |
| Kapilshanth Properties Ltd | Real estate | 2020 |
| Kapour & Co Ltd | Wholesale & retail | 2025 |
| Kapsons (UK) Limited | Real estate | 1998 |
| KAPTAAN804 Ltd | Wholesale & retail | 2025 |
| Kar-Uk Ltd | Professional & scientific | 2025 |
| Karak Chaiiwala Ltd | Hospitality | 2023 |
| Karak Foods Ltd | Hospitality | 2024 |
| Karam Builders Limited | Construction | 2023 |
| Karam Fashion UK Limited | Wholesale & retail | 2013 |
| Karan Construction Ltd | Construction | 2025 |
| Karan KUMAR1 Limited | Construction | 2025 |
| Karan Multani Construction Ltd | Construction | 2024 |
| Karan Wine & Food Ltd | Wholesale & retail | 2019 |
| Karaz Productions Limited | Information & communication | 2021 |
| Karishma Dawa Khana Limited | Health & social care | 2023 |
| Karm Pharma Ltd | Wholesale & retail | 2022 |
| Karmadeeds Limited | Construction | 2025 |
| Karmanwala Ltd | Wholesale & retail | 2024 |
| Karun for Studies & Publishing Ltd | Information & communication | 2024 |
| Karuna Retreats Ltd | Administrative & support | 2025 |
| Karwan (Stoke) Ltd | Hospitality | 2024 |
| Karwan Kebab Ltd | Hospitality | 2025 |
| Karwan Properties Ltd | Real estate | 2022 |
| KAS Homes Support & Care Ltd | Health & social care | 2023 |
| Kasa-Tec Limited | Professional & scientific | 2002 |
| Kash Saver Limited | Wholesale & retail | 2014 |
| Kashmir Shawl Centre Limited | Wholesale & retail | 2009 |
| KAT Maintenance & Construction Ltd | Construction | 2018 |
| Katalyst Properties International Limited | Real estate | 2013 |
| Katari Trades Ltd | Wholesale & retail | 2025 |
| Kates Chocolates Limited | Manufacturing | 2024 |
| Katunamediagroup Ltd | Information & communication | 2025 |
| Kaur Construction Ltd | Construction | 2025 |
| Kaur Singh Ltd | Households | 2025 |
| Kaurani Ltd | Construction | 2025 |
| Kautt & BUX (UK) Limited | Professional & scientific | 2018 |
| Kavin Retail Ltd | Wholesale & retail | 2023 |
| Kavya Estates Limited | Real estate | 2023 |
| Kawaldeep Singh Ltd | Transport & logistics | 2025 |
| Kawalpal Singh Ltd | Construction | 2023 |
| Kaya RAN Construction Ltd | Construction | 2023 |
| Kaya Spa and Clinic Ltd | Other services | 2026 |
| Kayani's Fresh Produce Ltd | Wholesale & retail | 2024 |
| Kayden Properties Limited | Households | 2021 |
| Kaypee Shop Front & Shutters Limited | Manufacturing | 2023 |
| KAZ Money Exchange Ltd | Other services | 2019 |