| Knightshift IT Ltd | Information & communication | 2025 |
| Knightstone Central Ltd | Real estate | 2012 |
| Knightstone Holdings Limited | Financial services | 2020 |
| Knightstone Investments Limited | Real estate | 2016 |
| Knightswood Real Estate & Management Ltd | Real estate | 2024 |
| Knightwick Holdings Limited | Real estate | 2023 |
| Knightwick Housing Ltd | Households | 2024 |
| KNK Global Limited | Wholesale & retail | 2025 |
| KNK Superstore Ltd | Wholesale & retail | 2019 |
| KNL Nutraceutical Ltd | Manufacturing | 2025 |
| Knmh Services Ltd | Professional & scientific | 2023 |
| Knnt Services Ltd | Wholesale & retail | 2025 |
| Knoc Ltd | Professional & scientific | 2025 |
| Knock Knock Properties Limited | Real estate | 2025 |
| Knockit Ltd | Transport & logistics | 2024 |
| Knocklong Limited | Hospitality | 2016 |
| Knoll Capital Group Limited | Administrative & support | 2011 |
| Knoll Media Limited | Administrative & support | 2011 |
| Knollcroft Management Company Limited | Households | 1997 |
| Knotbasic Ltd | Wholesale & retail | 2025 |
| Knowledge and Wisdom Limited | Information & communication | 2015 |
| Knowledge Justice Limited | Information & communication | 2025 |
| Knowledge Online Limited | Professional & scientific | 2000 |
| Knowledge Squared Ltd | Education | 2020 |
| Knowledge Transfer Corporation Ltd | Education | 2023 |
| Knowledge Transfer Initiative Limited | Other services | 2011 |
| Knowness Ltd | Information & communication | 2021 |
| Knox Brien & Associates Limited | Professional & scientific | 2017 |
| Knox Construction Ltd | Construction | 2019 |
| Knox Enterprisess Ltd | Wholesale & retail | 2025 |
| Knox Global Ltd. | Administrative & support | 2019 |
| KNP Logistics Group Limited | Financial services | 2011 |
| KNP Solutions Ltd | Professional & scientific | 2014 |
| Knpo Ltd | Wholesale & retail | 2024 |
| KNR Developments Limited | Financial services | 2024 |
| Knrt Ltd | Hospitality | 2009 |
| KNS Cars Ltd | Transport & logistics | 2024 |
| KNS Mots Limited | Wholesale & retail | 2018 |
| KNT International Investment Limited | Real estate | 2021 |
| KNU Properties Ltd | Real estate | 2023 |
| KNV Sales Ltd | Wholesale & retail | 2009 |
| Knwldge Ltd | Extraterritorial | 2018 |
| KNZ Ltd | Real estate | 2018 |
| KO Pitseng Ltd | Hospitality | 2025 |
| KO Trading Ltd | Wholesale & retail | 2023 |
| KO5KOV Transport Ltd | Transport & logistics | 2014 |
| Koala Group Holdings Limited | Financial services | 2022 |
| Koala Limited | Information & communication | 2008 |
| Koalsat Limited | Information & communication | 2017 |
| Koasha & Koasha Investments & Properties Limited | Real estate | 2001 |
| Koaze Care Ltd | Health & social care | 2023 |
| KOB Logistics Ltd | Transport & logistics | 2018 |
| Koba-Ko Upstairs Ltd | Hospitality | 2023 |
| Kobby Ltd | Health & social care | 2015 |
| Kobir Employment Agency Ltd | Administrative & support | 2020 |
| Kobmat Developments Ltd | Construction | 2020 |
| Kobra Ltd | Manufacturing | 2017 |
| Kobra OIL and GAS Services Ltd | Professional & scientific | 2020 |
| Kobus Projects Ltd | Administrative & support | 2025 |
| Kochi 1018 Ltd | Manufacturing | 2016 |
| Kode/Make Limited | Information & communication | 2023 |
| Kodia Limited | Manufacturing | 2025 |
| Kodlyn Ltd | Wholesale & retail | 2020 |
| Koelner Immobilien Betriebe Limited | Administrative & support | 2011 |
| Koenig Automotive Ltd | Wholesale & retail | 2017 |
| Koffee Kiss Limited | Hospitality | 2026 |
| Kofi Blake Property Ltd | Real estate | 2024 |
| Kofi House Ltd | Hospitality | 2026 |
| Kofo Adepoju Business Services Ltd | Hospitality | 2023 |
| Kofo Cosmetics for Hair & Beauty Ltd | Wholesale & retail | 2017 |
| Koh-I-Nur Takeaway Ltd | Hospitality | 2023 |
| Kohenkars Ltd | Wholesale & retail | 2019 |
| Kohenoor Sweets and Bakeries Ltd | Wholesale & retail | 2021 |
| Kohi Koala Ltd | Hospitality | 2025 |
| Kohinaz Ltd | Real estate | 2025 |
| Kohinoor Limited | Transport & logistics | 2022 |
| Kohinoor Productions Ltd | Information & communication | 2021 |
| Kohinoor Transport Ltd | Transport & logistics | 2025 |
| Kohitayn Ltd | Hospitality | 2025 |
| KOI KI Harborne Ltd | Hospitality | 2023 |
| Koinos Group Ltd | Information & communication | 2018 |
| Koji Online Solutions Ltd | Wholesale & retail | 2025 |
| Kojo Healthcare Limited | Other services | 2018 |
| Kok's WOK 888 Ltd | Hospitality | 2017 |
| Kokal Limited | Wholesale & retail | 2018 |
| Koko International Ltd | Transport & logistics | 2023 |
| Koko Lounge B'Ham Limited | Hospitality | 2025 |
| Koko Sport Ltd | Wholesale & retail | 2018 |
| Kokoba Limited | Professional & scientific | 2007 |
| Kokoe Ltd | Hospitality | 2025 |
| Kokoma Limited | Wholesale & retail | 2024 |
| Kokoyae Ltd | Wholesale & retail | 2024 |
| Kokson & Co (UK) Limited | Construction | 2014 |
| Kola Property Group Ltd | Financial services | 2024 |
| Kolakar Productions Ltd | Arts & recreation | 2017 |
| Kolan Driver Limited | Transport & logistics | 2013 |
| Kolari Services Ltd | Construction | 2026 |
| Kolat Technologies Limited | Manufacturing | 2025 |
| Kolds Laundry Service Limited | Other services | 2023 |
| Kole Software Limited | Information & communication | 2023 |