| Kaka Services Limited | Financial services | 2008 |
| Kake Temptations Ltd | Manufacturing | 2020 |
| Kakkad Holdings Ltd | Financial services | 2025 |
| Kala Arts CIC | Water & waste | 2023 |
| Kala Hair & Beauty Ltd | Other services | 2018 |
| Kala Kirti Enterprises Ltd | Hospitality | 2026 |
| Kala Singh Building Solutions Ltd | Construction | 2025 |
| Kalar Silk Screenprint Limited | Manufacturing | 1996 |
| Kalathingal Ltd | Real estate | 2019 |
| Kale Projects Ltd | Construction | 2024 |
| Kaleidokey Homes Limited | Construction | 2024 |
| Kalem Limited | Financial services | 2000 |
| Kaley Estates Limited | Real estate | 2025 |
| Kaley Investments Limited | Real estate | 2024 |
| Kaleyhealthcare Ltd | Public administration | 2024 |
| Kalia Brothers Ltd | Wholesale & retail | 2024 |
| Kalia Properties Limited | Extraterritorial | 2022 |
| Kalinka Mini Market Ltd | Wholesale & retail | 2026 |
| Kaliv Style Ltd | Wholesale & retail | 2023 |
| Kalkey Ltd | Health & social care | 2024 |
| Kaloty Haulage Ltd | Transport & logistics | 2021 |
| Kalp Suppliers Limited | Wholesale & retail | 2024 |
| Kalpesh M Mehta Limited | Real estate | 2025 |
| Kalra Foods Limited | Hospitality | 2024 |
| Kalron Limited | Wholesale & retail | 1998 |
| Kalsang Properties Ltd | Financial services | 2021 |
| Kalsi Building Consultancy Ltd | Real estate | 2025 |
| Kalsi Haulage Ltd | Transport & logistics | 2024 |
| Kalsi Legal Ltd | Professional & scientific | 2022 |
| Kalsi Tags Ltd | Manufacturing | 2015 |
| Kaltian Limited | Real estate | 2020 |
| Kalu Training and Consultancy Limited | Other services | 2009 |
| Kalu-J Ltd | Wholesale & retail | 2008 |
| Kalyan Gold & Diamond Jewellery Limited | Wholesale & retail | 2024 |
| KAM Aesthetic Clinic Ltd | Health & social care | 2026 |
| KAM Design & Build Ltd | Construction | 2012 |
| KAM Haulage Ltd | Transport & logistics | 2014 |
| KAM Kapital Ltd | Financial services | 2026 |
| Kamad Ltd | Hospitality | 2005 |
| Kamagill Transport Limited | Transport & logistics | 2011 |
| Kamal Essential Goods Limited | Wholesale & retail | 2023 |
| Kamala Investments Limited | Real estate | 2025 |
| Kamaldeep Kaur Beauty Limited | Other services | 2025 |
| Kamble Group Innovations Limited | Administrative & support | 2018 |
| Kamboj & Co Construction Ltd | Construction | 2024 |
| Kamdak Ltd | Financial services | 2019 |
| Kamdar Distribution Ltd | Wholesale & retail | 2025 |
| Kamer Connection ENT. Limited | Arts & recreation | 2019 |
| Kamerart Ltd | Wholesale & retail | 2018 |
| Kamil Pietrzela Ltd | Manufacturing | 2017 |
| Kamila ZAK Career Advisor Limited | Administrative & support | 2023 |
| Kamille Herbals Ltd | Wholesale & retail | 2025 |
| Kamlets Ltd | Real estate | 2025 |
| Kamma Investments Limited | Real estate | 2023 |
| Kamo Premium Vodka Ltd | Wholesale & retail | 2021 |
| Kamodei Ltd | Manufacturing | 2026 |
| Kamran Iqbal UK Limited | Administrative & support | 2024 |
| Kamrans BBQ Chicken Ltd | Hospitality | 2023 |
| Kamro Investments Limited | Financial services | 2019 |
| Kams Construction Ltd Ltd | Construction | 2026 |
| Kamsika Trading Ltd | Wholesale & retail | 2021 |
| Kamyaab Ltd | Manufacturing | 2025 |
| Kana Kreates Ltd | Professional & scientific | 2026 |
| Kanaancare Limited | Health & social care | 2025 |
| Kanabar Enterprise Ltd | Real estate | 2020 |
| Kanabar Limited | Real estate | 2018 |
| Kanaiya Group Limited | Wholesale & retail | 2026 |
| Kanaka Durga Ltd | Administrative & support | 2002 |
| Kanalytics Limited | Information & communication | 2023 |
| Kanchs Ltd | Other services | 2023 |
| Kanda Lawyer Ltd | Information & communication | 2023 |
| Kanden Investments Limited | Real estate | 2020 |
| Kandhali Krupa Ltd | Real estate | 2025 |
| Kandola Property Management Ltd | Real estate | 2026 |
| Kane Homes Limited | Real estate | 2020 |
| Kanexa Ltd | Wholesale & retail | 2026 |
| Kang Bros Properties Ltd | Real estate | 2025 |
| Kang Care Homes Ltd | Real estate | 2019 |
| Kang Investment Holdings Limited | Financial services | 2022 |
| Kang Investments Leicester Ltd | Real estate | 2024 |
| Kang Investments Limited | Real estate | 2015 |
| Kang Lifestyle Ltd | Real estate | 2018 |
| Kang Properties Leicester Ltd | Real estate | 2019 |
| Kang S Ltd | Transport & logistics | 2025 |
| Kang Transport (Leicester) Ltd | Wholesale & retail | 2020 |
| Kang Tyres Ltd | Wholesale & retail | 2022 |
| Kanignan Consultants Ltd | Information & communication | 2016 |
| Kanjahx Limited | Wholesale & retail | 2026 |
| Kanson Contractors Ltd | Construction | 2022 |
| Kantzis Investments Ltd | Real estate | 2022 |
| Kanzy Limited | Wholesale & retail | 2015 |
| Kaoba Ltd | Manufacturing | 2024 |
| Kaon Ventures Ltd | Professional & scientific | 2025 |
| KAP Designs Ltd | Professional & scientific | 2016 |
| KAP9 Solutions Limited | Information & communication | 2024 |
| KAP9 Trading Limited | Wholesale & retail | 2024 |
| Kapasi Healthcare Limited | Real estate | 2015 |
| Kapeesh Limited | Professional & scientific | 2017 |
| Kapelatrans Ltd | Transport & logistics | 2021 |
| Kapila Ltd | Manufacturing | 2015 |