| Kitchen of Punjab Ltd | Hospitality | 2026 |
| Kitchen Tago Ltd | Manufacturing | 2019 |
| Kitmo Property Limited | Real estate | 2022 |
| Kivein Ltd | Information & communication | 2025 |
| Kiyoda Ltd | Transport & logistics | 2023 |
| KJ General Maintenance Ltd | Construction | 2025 |
| KJ Healthcare Ltd | Health & social care | 2023 |
| KJ Johnson Trading Ltd | Wholesale & retail | 2025 |
| KJ Mahal Contruction Ltd | Construction | 2025 |
| KJC Trades Ltd | Financial services | 2025 |
| KJH Consultants Ltd | Professional & scientific | 2026 |
| KJH Investments Limited | Real estate | 2024 |
| KJJ Construction Ltd | Construction | 2018 |
| KK Fish and Chips Ltd | Hospitality | 2026 |
| KK Investment Projects Ltd | Real estate | 2014 |
| KK Property Estates Ltd | Real estate | 2026 |
| KK Psychology Services Limited | Education | 2025 |
| Kkbe Properties Ltd | Real estate | 2017 |
| KKM Transport Ltd | Transport & logistics | 2023 |
| Kkos&M Limited | Real estate | 2024 |
| KKR Solutions Ltd | Other services | 2017 |
| Kkss Properties Development Limited | Real estate | 2024 |
| KLA Paving Ltd | Administrative & support | 2025 |
| Klaid Ltd | Wholesale & retail | 2025 |
| Klair Beauty Bar Ltd | Other services | 2021 |
| Klair Beauty Salon Ltd | Other services | 2018 |
| Klair Beauty Salon Rugeley Ltd | Other services | 2021 |
| Klaire Carriers Ltd | Transport & logistics | 2016 |
| Klarich Ltd | Professional & scientific | 2012 |
| Klaxon Garage Ltd | Wholesale & retail | 2018 |
| KLC Insulation and Rendering Ltd | Construction | 2022 |
| Klegadams Global Care Ltd | Health & social care | 2018 |
| Kler Food Ltd | Hospitality | 2019 |
| Klevaro Ltd | Wholesale & retail | 2025 |
| KLG Aesthetics Ltd | Other services | 2023 |
| Klixon Consuting and Solutions Limited | Information & communication | 2024 |
| Klowde Photography Ltd | Professional & scientific | 2026 |
| Klues Private Limited | Wholesale & retail | 2026 |
| KLX International Ltd | Wholesale & retail | 2019 |
| KM Logistics's Ltd | Wholesale & retail | 2023 |
| KMF & Sons Ltd | Wholesale & retail | 2017 |
| KMH & Co Holdings Ltd | Financial services | 2025 |
| KMH Realty Ltd | Real estate | 2023 |
| KMK Affirmed Care Limited | Health & social care | 2020 |
| KML Property Group Ltd | Real estate | 2025 |
| KML Therm Ltd | Construction | 2024 |
| KMN Investments Limited | Administrative & support | 2014 |
| Kmr(Uk) Logistics Ltd | Transport & logistics | 2019 |
| KMS Motors Limited | Wholesale & retail | 2024 |
| KMY Coaching Ltd | Health & social care | 2021 |
| Kmzee Services Ltd | Administrative & support | 2022 |
| KN Restaurants Ltd | Hospitality | 2022 |
| KN Subcontractor Ltd | Construction | 2017 |
| KN Top Talent Work Limited | Health & social care | 2024 |
| Knaux Bullion Ltd | Wholesale & retail | 2025 |
| Kngs TV Ltd | Information & communication | 2023 |
| Knight Forge Arena Ltd | Wholesale & retail | 2025 |
| Knight's Watch Security Services Limited | Administrative & support | 2015 |
| Knightsbridge Enterprise Holdings Limited | Health & social care | 2005 |
| Knightsbridge Support & Care Ltd | Public administration | 2024 |
| Knightskymedia Limited | Information & communication | 2020 |
| Knockout Games Ltd | Information & communication | 2026 |
| Knoetic Ltd | Administrative & support | 2013 |
| Know Tax Accountants Ltd | Real estate | 2011 |
| Know Tax Limited | Professional & scientific | 2019 |
| Knowmeld Ltd | Information & communication | 2025 |
| KNOX1 Limited | Health & social care | 2024 |
| Knoxee Limited | Other services | 2023 |
| KNY Plumbing and Heating Solutions Ltd | Construction | 2025 |
| KO Property Investments Ltd | Real estate | 2022 |
| Koby Barbers Wolverhampton Limited | Other services | 2025 |
| Kodey KAY Ltd | Other services | 2017 |
| Koero Ltd | Wholesale & retail | 2025 |
| Koffee Social Limited | Hospitality | 2026 |
| Kofi and Co Dryliner Limited | Construction | 2019 |
| Kohinoor Travels Ltd | Administrative & support | 2024 |
| Koiers Support Ltd | Health & social care | 2026 |
| Kolak Services Ltd | Transport & logistics | 2020 |
| Kollamala Limited | Health & social care | 2016 |
| Kolmay Limited | Other services | 2017 |
| Kolme QT Limited | Hospitality | 2020 |
| Kondial K9 Security Service Ltd | Administrative & support | 2025 |
| Kondior Ltd | Wholesale & retail | 2019 |
| Konectn Tech Limited | Information & communication | 2025 |
| Koner Healthcare Limited | Health & social care | 2021 |
| Koner Smiles Limited | Health & social care | 2024 |
| Konet Limited | Wholesale & retail | 2002 |
| Konnect Utility Holdings Limited | Financial services | 2024 |
| Kontakt MMA Ltd | Wholesale & retail | 2025 |
| KOO Enterprises Limited | Construction | 2019 |
| Kooner Holdings Limited | Financial services | 2022 |
| Kopra Lane Enterprises Ltd | Wholesale & retail | 2025 |
| Kora Collective Ltd | Wholesale & retail | 2026 |
| Kora Estates Limited | Real estate | 2024 |
| Kora Lettings Limited | Real estate | 2025 |
| Korosh Ltd | Wholesale & retail | 2025 |
| Korotana Properties Ltd | Real estate | 2022 |
| Kostea Trans Ltd | Transport & logistics | 2016 |
| Koster Property Ltd | Real estate | 2024 |
| Kovr Cosmetics Ltd | Wholesale & retail | 2026 |