| Kalsun Aluminium Ltd | Manufacturing | 2014 |
| Kalvirs Property Holdings Limited | Real estate | 2024 |
| Kalyan Construction Limited | Construction | 2025 |
| KAM Builders West Midlands Limited | Construction | 2015 |
| KAM Express Limited | Transport & logistics | 2016 |
| KAM Kullar Limited | Professional & scientific | 2021 |
| Kama Sutra Worldwide Limited | Real estate | 2001 |
| Kamakris Ltd | Construction | 2024 |
| Kamal Kitchen & Bedroom Ltd | Construction | 2024 |
| Kaman Ltd | Other services | 2024 |
| Kambojx Limited | Transport & logistics | 2023 |
| Kambojx Trading Ltd | Wholesale & retail | 2023 |
| Kamil Uhle Ltd | Transport & logistics | 2021 |
| Kamistry Ltd | Administrative & support | 2014 |
| Kams Fitness Coaching Limited | Administrative & support | 2023 |
| Kanchanpur Limited | Hospitality | 2023 |
| Kanda Gold Ltd | Wholesale & retail | 2013 |
| Kanda Real Estate Ltd | Real estate | 2024 |
| Kando Group Holdings Limited | Wholesale & retail | 2020 |
| Kando Group Investments Ltd | Real estate | 2019 |
| Kando Group Limited | Wholesale & retail | 2016 |
| Kandr Property Services 2025 Limited | Real estate | 2025 |
| Kaneez Bibi Ltd | Wholesale & retail | 2026 |
| Kaneus Ltd | Wholesale & retail | 2026 |
| Kang Developers Ltd | Construction | 2022 |
| Kang Freight Ltd | Transport & logistics | 2018 |
| Kang Properties Limited | Real estate | 2021 |
| Kang Property Group Ltd | Real estate | 2022 |
| Kang's Construction Ltd | Construction | 2018 |
| Kangotra Services Ltd | Construction | 2024 |
| Kanshi TV Ltd | Information & communication | 2011 |
| Kanti Limited | Administrative & support | 2018 |
| KAP Couriers Ltd | Transport & logistics | 2024 |
| KAP Holdings Limited | Real estate | 2022 |
| Kapa Bous LLP | | 2022 |
| Kapaah Ltd | Wholesale & retail | 2026 |
| Kapur & Iyer Consultants Ltd | Information & communication | 2023 |
| Karaliusdriver 01 Limited | Transport & logistics | 2016 |
| Karam Building Services Ltd | Construction | 2023 |
| Kareflex Ltd | Information & communication | 2020 |
| Karewave Limited | Administrative & support | 2023 |
| Karibu Services Limited | Real estate | 2004 |
| Karim Logistics Limited | Transport & logistics | 2026 |
| Karim Transport Ltd | Transport & logistics | 2020 |
| Karimi Pharmax Ltd | Wholesale & retail | 2022 |
| Karis Health Limited | Health & social care | 2025 |
| Karisa Limited | Administrative & support | 2011 |
| Karisatraining Limited | Education | 2022 |
| Karishma Properties Limited | Real estate | 2022 |
| Karl Skitt Properties Limited | Real estate | 2021 |
| Karl With a K Plumbing & Heating Limited | Construction | 2024 |
| Karlka Prod. Limited | Wholesale & retail | 2024 |
| Karm Property Buying Ltd. | Real estate | 2025 |
| Karm's Delivery Ltd | Transport & logistics | 2020 |
| Karma Camping Limited | Wholesale & retail | 2018 |
| Karma Canvas Limited | Wholesale & retail | 2009 |
| Karma Development Company Limited | Construction | 2004 |
| Karnali IT Solution Ltd | Information & communication | 2026 |
| Karta Purakh Properties Ltd | Real estate | 2023 |
| Kasairco Ltd | Arts & recreation | 2026 |
| Kasbai Services Limited | Construction | 2014 |
| Kash Ltd | Other services | 2022 |
| Kashif Mart Ltd | Wholesale & retail | 2026 |
| Katas Consultancy Limited | Administrative & support | 2013 |
| Katie's Kitchen (Wolverhampton) Ltd | Hospitality | 2020 |
| Katnat Disabled Equipment Ltd | Manufacturing | 2021 |
| Katushabe Consultancy Limited | Health & social care | 2017 |
| Kaur LAB UK CIC | Other services | 2025 |
| Kaur M Logistics Limited | Transport & logistics | 2025 |
| Kaur Tiffin Service Ltd | Hospitality | 2026 |
| Kaur’S Initiative Ltd | Wholesale & retail | 2025 |
| Kavala Group Limited | Wholesale & retail | 2021 |
| Kavin Logistics Limited | Hospitality | 2020 |
| Kavkwg Investments Ltd | Real estate | 2021 |
| KAW Installations Limited | Construction | 1992 |
| KAY Group Holdings Limited | Transport & logistics | 2020 |
| KAY1 Construction Limited | Construction | 2018 |
| Kaya Express Limited | Transport & logistics | 2025 |
| Kayfeldspar Limited | Manufacturing | 2026 |
| Kayla.Damon Ltd | Health & social care | 2016 |
| Kay’S Corner Ltd | Hospitality | 2025 |
| KAZ Bar Wolves Limited | Hospitality | 2015 |
| KAZ Delivery Service Ltd | Transport & logistics | 2024 |
| Kazuk Logistics Ltd | Transport & logistics | 2023 |
| KB 888 Limited | Hospitality | 2024 |
| KB Fitness Education Ltd | Arts & recreation | 2024 |
| KB Food Group Ltd | Hospitality | 2025 |
| KB New Dream Construction Ltd | Construction | 2023 |
| KB Project Services (Wolverhampton) Ltd | Professional & scientific | 2015 |
| KB Singh Transport Ltd | Transport & logistics | 2022 |
| KBL Engineering Services Limited | Professional & scientific | 2022 |
| Kbsa Ltd | Wholesale & retail | 2021 |
| KC Premier Properties Limited | Real estate | 2017 |
| Kcee Logistics Limited | Transport & logistics | 2025 |
| KCG Lifting Services Limited | Manufacturing | 2017 |
| Kcls Properties Ltd | Real estate | 2018 |
| KCP Solutions Limited | Administrative & support | 2019 |
| Kcslnrchbb Debt Resolution's Limited | Professional & scientific | 2025 |
| Kcwa Limited | Real estate | 2024 |
| KD GAS Services Ltd | Construction | 2023 |