| Kmita Car Sales Ltd | Other services | 2019 |
| Kmita Motors Ltd | Manufacturing | 2015 |
| KMJ Acupuncture Ltd | Professional & scientific | 2022 |
| Kmms Properties Limited | Real estate | 2025 |
| Kmpa Global Ltd | Wholesale & retail | 2025 |
| KMT Building Contractors Ltd | Construction | 2014 |
| Kngs Property Limited | Real estate | 2021 |
| Knightlink Services Limited | Professional & scientific | 2008 |
| Knosis Social Work Consultants Ltd | Health & social care | 2011 |
| Koat Limited | Wholesale & retail | 2020 |
| Kobij Limited | Health & social care | 2014 |
| Kocak Properties Ltd | Real estate | 2002 |
| KOCAK58 Ltd | Real estate | 2024 |
| Kochhar Investments Limited | Real estate | 2019 |
| Koctas Limited | Construction | 2011 |
| Kohinoor Kent Ltd | Hospitality | 2026 |
| Kohinoor Spice Ltd | Hospitality | 2021 |
| Kola & Keys Properties Limited | Real estate | 2023 |
| Kola G Homes Limited | Construction | 2023 |
| Kolajo Estates Limited | Real estate | 2023 |
| Koletola Ltd | Administrative & support | 2026 |
| Kona Property Investments Limited | Real estate | 2025 |
| Konner Shane Nicholas West Ltd | Wholesale & retail | 2025 |
| Konnexia Complex Care Ltd | Public administration | 2024 |
| Kontactus Ltd | Administrative & support | 2025 |
| Korabi Build Ltd | Construction | 2024 |
| Kortbar Housing CIC | Health & social care | 2024 |
| Koyal Limited | Wholesale & retail | 2025 |
| Kpable Ltd | Health & social care | 2022 |
| KPL Code Limited | Information & communication | 2015 |
| Kpnias-Group Ltd | Other services | 2023 |
| KPS Flooring & Carpets Limited | Wholesale & retail | 2021 |
| KR Fast Freight Ltd | Transport & logistics | 2023 |
| Krajewski-Tomasz Ltd | Transport & logistics | 2023 |
| Krak Ltd | Construction | 2018 |
| Kretech Ltd | Information & communication | 2024 |
| Krishav Limited | Wholesale & retail | 2020 |
| Kristal 17 LLP | | 2016 |
| Kristlight Ltd | Health & social care | 2021 |
| KRO Services Ltd | Other services | 2020 |
| Kronstadt Ltd | Construction | 2018 |
| Krypton Global Construction Ltd | Construction | 2025 |
| Krypton Global Force Ltd | Wholesale & retail | 2025 |
| Krypton Global Limited | Construction | 2017 |
| Krystal Clear Trading Limited | Administrative & support | 2020 |
| Ksena Solutions Limited | Professional & scientific | 2016 |
| KSR BIM Structural Services Ltd | Professional & scientific | 2025 |
| Kstar Independent Solutions Ltd. | Information & communication | 2015 |
| KT Brother Ltd | Wholesale & retail | 2024 |
| Ktreatz Ltd | Manufacturing | 2023 |
| Ktrems Logistics Ltd | Transport & logistics | 2020 |
| Kubukeli Enterprise Ltd | Health & social care | 2016 |
| Kuflink Bridging Ltd | Administrative & support | 2011 |
| Kuflink DM Limited | Financial services | 2024 |
| Kuflink Finance NO. 1 Ltd | Administrative & support | 2018 |
| Kuflink Finance NO. 2 Ltd | Administrative & support | 2018 |
| Kuflink Finance NO. 3 Ltd | Real estate | 2023 |
| Kuflink Finance NO. 4 Ltd | Construction | 2025 |
| Kuflink Home Loans Limited | Financial services | 2011 |
| Kuflink Landlord Ltd | Administrative & support | 2018 |
| Kuflink Ltd | Administrative & support | 2013 |
| Kuflink One Ltd | Administrative & support | 2019 |
| Kuflink Security Trustees Ltd | Administrative & support | 2016 |
| Kula Kuts Limited | Other services | 2003 |
| Kulvir Singh Ltd | Construction | 2016 |
| Kumon Weybridge Limited | Education | 2018 |
| Kung FU Schools Gillingham Ltd | Arts & recreation | 2020 |
| Kusnera Limited | Information & communication | 2025 |
| Kuzkraft Carpentry Ltd | Construction | 2024 |
| KVB Renewables Ltd | Other services | 2020 |
| KVS Motor Group Limited | Wholesale & retail | 2020 |
| KVT Investment Group Limited | Real estate | 2026 |
| KW Ductwork Ltd | Other services | 2020 |
| KW Trans Ltd | Transport & logistics | 2024 |
| Kwagumbo Limited | Health & social care | 2021 |
| Kwari AI Education Ltd | Information & communication | 2026 |
| Kwealthproperties Limited | Real estate | 2025 |
| KXH Logistics Ltd | Transport & logistics | 2023 |
| Kyle Macy Property Solutions Ltd. | Real estate | 2017 |
| Kyle Transport Ltd | Transport & logistics | 2021 |
| Kyris Healthcare Ltd | Health & social care | 2024 |
| KYS Priority Estate Ltd | Real estate | 2023 |
| L & M Haulage Limited | Transport & logistics | 2015 |
| L and a Events Ltd | Hospitality | 2024 |
| L and M Contracts Limited | Construction | 2024 |
| L C Steel Services Limited | Manufacturing | 2014 |
| L COX Plastering & Damp Solutions Ltd | Construction | 2025 |
| L Papa & Sons (Gravesend) Limited | Wholesale & retail | 2023 |
| L Profix Ltd | Construction | 2021 |
| L&D7 Holdings Ltd | Real estate | 2025 |
| L&L Mechanical Ltd | Construction | 2020 |
| L&P Commercials Kent Ltd | Wholesale & retail | 2026 |
| L&S Design and Build Ltd | Construction | 2024 |
| L'Antipasto City Ltd | Hospitality | 2012 |
| L'S Foodie Ltd | Hospitality | 2025 |
| L. KEL Services Limited | Manufacturing | 2005 |
| L.A.H Electrical Ltd | Construction | 2016 |
| L.I.O Group Ltd | Construction | 2025 |
| L.L and E Ltd | Construction | 2017 |
| L4V Electronics Limited | Administrative & support | 2021 |