| Korix Ltd | Construction | 2026 |
| Kormax Limited | Wholesale & retail | 2018 |
| Korpol Ltd | Transport & logistics | 2019 |
| Kory Enterprises Ltd | Real estate | 2024 |
| Kosi Holdings Limited | Real estate | 2016 |
| Koszubowski Ltd | Transport & logistics | 2019 |
| Koumsub Ltd | Health & social care | 2014 |
| Kouneli Ltd | Administrative & support | 2020 |
| Kova International Limited | Professional & scientific | 2023 |
| Kova Releasing Limited | Professional & scientific | 2024 |
| Kovan & Ramos Ltd | Other services | 2017 |
| KPA Coolair Services Ltd | Construction | 2020 |
| Kpan Medical Services Ltd | Health & social care | 2025 |
| KPB Healthcare Limited | Wholesale & retail | 2014 |
| KPD - Africa Ltd | Real estate | 2024 |
| KPD - Bridgewater Ltd | Real estate | 2025 |
| KPD - Emscote Ltd | Construction | 2018 |
| KPD - Investments 2 Ltd | Real estate | 2021 |
| KPD - Investments Ltd | Real estate | 2017 |
| KPD - Khouse Accommodation Ltd | Administrative & support | 2024 |
| KPD - Khouse Investments Ltd | Real estate | 2020 |
| KPD - Khouse Ltd | Construction | 2016 |
| KPD - Portland Ltd | Real estate | 2024 |
| KPD - Priors Investments Ltd | Real estate | 2022 |
| KPD - Priors Ltd | Construction | 2018 |
| KPD - Seymour House Management Limited | Real estate | 2023 |
| KPD - Southern Ltd | Construction | 2018 |
| KPD Communications Limited | Wholesale & retail | 2018 |
| KPG Trading Limited | Wholesale & retail | 2008 |
| KPH Southern Plumbing & Heating Ltd | Construction | 2025 |
| KPL Properties Limited | Real estate | 2001 |
| KPS1 Entertainment Limited | Administrative & support | 2026 |
| KR Associates (UK) Ltd | Professional & scientific | 2003 |
| KR Electrics & Renewable Solutions Ltd | Construction | 2023 |
| KRA EL Ltd | Construction | 2017 |
| KRA Electrical & Energy Solutions Ltd | Construction | 2021 |
| KRA Laundry Lounge Ltd | Wholesale & retail | 2026 |
| KRA PM Ltd | Real estate | 2020 |
| Kraft Production Services Ltd | Administrative & support | 2004 |
| Kraken Koven Limited | Wholesale & retail | 2026 |
| Krane Logistics Ltd | Transport & logistics | 2019 |
| Krank Events Ltd | Arts & recreation | 2018 |
| Krankbrother Limited | Wholesale & retail | 2011 |
| Kranlee Properties Ltd | Real estate | 2026 |
| Kratos Engineering (UK) Limited | Manufacturing | 2020 |
| Krawell Property Limited | Households | 2025 |
| KRC Joinery Ltd | Construction | 2019 |
| Krem Carpentry Ltd | Manufacturing | 2019 |
| Kresso Care Limited | Health & social care | 2022 |
| KRG Brickwork Ltd | Construction | 2019 |
| Krhome Limited | Professional & scientific | 2017 |
| Kri-Tech Ltd | Wholesale & retail | 2006 |
| Krirosh Stores Limited | Wholesale & retail | 2019 |
| Kris Construction and Property Maintenance Limited | Construction | 2016 |
| Kris SFM Services Limited | Construction | 2015 |
| Krish Private Ltd | Wholesale & retail | 2017 |
| Kroma Design Ltd | Information & communication | 2013 |
| Kronoplast Extrupack Ltd | Wholesale & retail | 2026 |
| Krowd Advisory Ltd | Professional & scientific | 2025 |
| KRS Protect Ltd | Financial services | 2020 |
| KRTM2 Ltd | Real estate | 2024 |
| Krueger Limited | Wholesale & retail | 1979 |
| Kruger Rand Limited | Construction | 2009 |
| Krupa News Shirley Limited | Wholesale & retail | 2012 |
| Krupali Services Limited | Wholesale & retail | 2016 |
| KRW Studio Limited | Professional & scientific | 2020 |
| Krysalis Property Group Limited | Households | 2024 |
| Krystal Cleaners Limited | Administrative & support | 2023 |
| Krysty Sullivan Railway Limited | Construction | 2015 |
| KS (KC) Property Maintenance Limited | Construction | 2025 |
| KS Training and Translation Limited | Professional & scientific | 2018 |
| KSB Electrical South Ltd | Construction | 2024 |
| KSC Consultants Ltd | Information & communication | 2018 |
| Kscustom Welding Limited | Professional & scientific | 2023 |
| KSD Pro Ltd | Wholesale & retail | 2026 |
| KSD Property Holdings Ltd | Real estate | 2018 |
| KSE Construction Ltd | Construction | 2015 |
| Ksj-Ecomm Ltd | Wholesale & retail | 2021 |
| KSK Global Limited | Real estate | 2012 |
| KSK Retail Ltd | Wholesale & retail | 2019 |
| Ksrp Ltd | Hospitality | 2023 |
| Ksttransport Ltd | Transport & logistics | 2023 |
| KSW Properties Limited | Real estate | 2020 |
| KT & Co Limited | Arts & recreation | 2010 |
| KT Nails 86 Limited | Other services | 2025 |
| Ktec Design Ltd | Professional & scientific | 2023 |
| KTG Installations Ltd | Construction | 2014 |
| KTJ Construction Ltd | Construction | 2025 |
| KTJ Group Ltd | Administrative & support | 2025 |
| KTM Collectibles Ltd | Other services | 2025 |
| Ktpp Limited | Real estate | 2014 |
| Ktrendz-Barbers Ltd | Other services | 2020 |
| KTV Productions Ltd | Information & communication | 2019 |
| Kuber Woolston Ltd | Wholesale & retail | 2025 |
| Kuberii Ltd | Construction | 2025 |
| Kubex Ventures Limited | Real estate | 2014 |
| Kubiesa Transport Ltd | Transport & logistics | 2024 |
| Kudzaitadiwa Limited | Health & social care | 2014 |
| Kuji Limited | Real estate | 2025 |
| Kumrat Commerce Limited | Wholesale & retail | 2025 |