| Knight Promo Ltd | Arts & recreation | 2023 |
| Knight Star Ltd. | Health & social care | 2016 |
| Knights Audio Ltd | Administrative & support | 2016 |
| Knights Carpets Ltd | Wholesale & retail | 2012 |
| Knights Keep (KW) Management Limited | Households | 2020 |
| Knot Analytics Ltd | Professional & scientific | 2020 |
| Knotty Creative Ltd | Wholesale & retail | 2024 |
| Knotty Labs Ltd | Professional & scientific | 2020 |
| Know My Memories Limited | Information & communication | 2023 |
| Knowhowit Ltd | Information & communication | 2023 |
| Knowledge Pillars Education Ltd | Education | 2017 |
| Kobold Aviation Maintenance Ltd | Professional & scientific | 2024 |
| Kodeco Ltd | Information & communication | 2025 |
| Kodoth Limited | Health & social care | 2014 |
| Kohana Gifts Ltd | Wholesale & retail | 2025 |
| KOI Construction Ltd | Construction | 2024 |
| Koin Limited | Wholesale & retail | 2012 |
| Koin Production Limited | Wholesale & retail | 2025 |
| Koirin Azalea Centre Limited | Wholesale & retail | 2001 |
| Koko Construction 99 Ltd | Construction | 2024 |
| Kola Construction Ltd | Construction | 2018 |
| Kola Renewable Energy Ltd | Construction | 2019 |
| Koolpak Limited | Manufacturing | 1993 |
| Kopek Limited | Wholesale & retail | 2017 |
| Kore Building Limited | Construction | 2013 |
| Korford & Co Living Limited | Real estate | 2025 |
| Korpro Limited | Manufacturing | 2021 |
| Korshew Ltd | Professional & scientific | 2025 |
| Korson Tech Ltd | Information & communication | 2020 |
| Kosmos General Partner Limited | Extraterritorial | 2014 |
| Kosy Pack Ltd | Wholesale & retail | 2025 |
| Kosy Properties Ltd | Real estate | 2026 |
| Kotcare Holdings Ltd | Financial services | 2023 |
| Koup Home Limited | Wholesale & retail | 2025 |
| Kouraz Skincare Ltd | Wholesale & retail | 2020 |
| Kowoled Ltd | Manufacturing | 2017 |
| KPF Property Limited | Real estate | 2018 |
| KPM Removals Ltd | Water & waste | 2025 |
| Kpma Land Limited | Households | 2012 |
| Krandar Management Services Limited | Professional & scientific | 2006 |
| Krashtechnic Ltd | Wholesale & retail | 2018 |
| Kreo Limited | Construction | 2005 |
| KRG Barbers Ltd | Other services | 2022 |
| Krgtooling Limited | Manufacturing | 2012 |
| Kriptoist Ltd | Information & communication | 2022 |
| Kris Bourne Limited | Financial services | 2025 |
| Krista Bune Event Services Limited | Professional & scientific | 2013 |
| KRP7 Ltd | Construction | 2024 |
| Kryn Limited | Other services | 2025 |
| Kryolite Limited | Other services | 2025 |
| Kryspa Ltd | Transport & logistics | 2021 |
| KS Design Architecture & Planning Limited | Professional & scientific | 2015 |
| KS Digital Nexus Ltd | Other services | 2025 |
| KS Distribution PVT Ltd | Information & communication | 2024 |
| KS Financial Solutions Limited | Financial services | 2005 |
| Ksg-Project Ltd | Construction | 2020 |
| Ksgran Events Ltd | Arts & recreation | 2012 |
| Kssr Trading Limited | Financial services | 2024 |
| KSW Property Ltd | Real estate | 2023 |
| KT Properties SPV Ltd | Real estate | 2025 |
| KT Psychology Ltd | Education | 2024 |
| KTM Design Ltd | Construction | 2015 |
| KTR Crossfit Limited | Arts & recreation | 2015 |
| Kube Visuals Limited | Information & communication | 2007 |
| Kubo 23 Limited | Construction | 2021 |
| Kubo Developments Limited | Construction | 2021 |
| Kubo Homes Limited | Construction | 2018 |
| Kubuni Limited | Other services | 2015 |
| Kudos Motor Company Ltd | Wholesale & retail | 2018 |
| Kulicide Limited | Manufacturing | 2014 |
| Kuliweld Ltd | Manufacturing | 2025 |
| Kullving Capital Advisors Limited | Administrative & support | 2016 |
| Kushiara Spice Ltd | Hospitality | 2022 |
| Kutluk Limited | Information & communication | 2021 |
| Kuzey Limited | Hospitality | 2019 |
| Kvanta Ltd | Professional & scientific | 2020 |
| KVD Consultancy Ltd | Professional & scientific | 2019 |
| KVR Construction Ltd | Construction | 2026 |
| KW Ventures Limited | Professional & scientific | 2010 |
| KWE Contractors Limited | Construction | 2025 |
| Kwik SET Plastering Limited | Construction | 2004 |
| KX Capital Limited | Financial services | 2017 |
| Kyezen Dynamics Ltd | Wholesale & retail | 2024 |
| Kykx Limited | Health & social care | 2025 |
| Kyoto Card House Ltd | Wholesale & retail | 2026 |
| Kyoto Dolphin Ltd | Hospitality | 2026 |
| KYP Limited | Wholesale & retail | 2022 |
| Kyrie Accounting Private Limited | Professional & scientific | 2015 |
| Kyros Nutrition Ltd | Wholesale & retail | 2021 |
| Kyros Project Ltd | Professional & scientific | 2019 |
| KZM Digital Limited | Wholesale & retail | 2024 |
| L & D Cochrane Signalling Ltd | Administrative & support | 2023 |
| L & I Holding Limited | Financial services | 2016 |
| L & R International Ltd | Other services | 2017 |
| L a Scott Ltd | Professional & scientific | 2023 |
| L Aesthetics Ltd | Education | 2026 |
| L B Poole Ltd | Hospitality | 2024 |
| L Choo Limited | Professional & scientific | 2024 |
| L G Orchard Building Contractors Limited | Construction | 2011 |
| L J & P Ltd | Real estate | 2016 |