| K&I Bowen Ltd | Agriculture & fishing | 2026 |
| K&L Equestrian Ltd | Other services | 2025 |
| K.A.W. Securities Limited | Real estate | 2003 |
| K.S Accountancy Solutions Limited | Professional & scientific | 2013 |
| K1 Golden Scissors BS Ltd | Other services | 2024 |
| Kabin Holdings Ltd | Hospitality | 2025 |
| Kamynthus Ltd | Administrative & support | 2018 |
| Kane Edwards Ltd | Transport & logistics | 2023 |
| Kanta Limited | Financial services | 2021 |
| Kareem Senan Ltd | Construction | 2024 |
| Karl John Griffiths Ltd | Extraterritorial | 2024 |
| Karlacip Ltd | Wholesale & retail | 2025 |
| Karma Games Limited | Information & communication | 2020 |
| Karzzic Ltd | Administrative & support | 2024 |
| Kase Solutions Limited | Administrative & support | 2011 |
| Kastrerion Ltd | Transport & logistics | 2021 |
| Kazanne Hospitality Limited | Hospitality | 2015 |
| KBL Electrical Limited | Construction | 2012 |
| KCS Accounting Ltd | Professional & scientific | 2026 |
| KD Classic Barber Ltd | Other services | 2026 |
| Keclards Ltd | Administrative & support | 2024 |
| KEE Developments 2026 Ltd | Construction | 2026 |
| KEE Developments Ltd | Construction | 2024 |
| Keelaghy Ltd | Manufacturing | 2022 |
| Keldapola Ltd | Transport & logistics | 2020 |
| Keleddash Ltd | Administrative & support | 2024 |
| Kemp Hospice | Health & social care | 2011 |
| Kemp House Trust (Hospice Shop) Limited | Wholesale & retail | 1993 |
| Keniris Engineering Ltd | Information & communication | 2021 |
| Kensington Construction Group Ltd | Construction | 2022 |
| Kentigazith Ltd | Health & social care | 2024 |
| Kentisbury Ltd | Hospitality | 2021 |
| Kentmaster Limited | Wholesale & retail | 1991 |
| Kerrigans Family Law Limited | Professional & scientific | 2010 |
| Kerry Carmichael Ltd | Transport & logistics | 2023 |
| Kestrel Aviation Consultancy Limited | Professional & scientific | 2024 |
| Kestrel GAS Services Ltd | Construction | 2024 |
| Kevaughn Courier Ltd | Transport & logistics | 2026 |
| Kevyann Ltd Ltd | Construction | 2025 |
| Key Design Ltd | Information & communication | 2020 |
| KGJ TM Ltd | Construction | 2025 |
| KH Landscapes Limited | Administrative & support | 2023 |
| Khzri Ltd | Transport & logistics | 2023 |
| Kiamm Limited | Construction | 2007 |
| Kiamm Management Limited | Financial services | 2021 |
| Kidderminster BID Ltd | Other services | 2019 |
| Kidderminster Car Repairs Limited | Wholesale & retail | 2014 |
| Kidderminster Carpets Limited | Wholesale & retail | 2002 |
| Kidderminster Community Development Group Ltd | Arts & recreation | 2020 |
| Kidderminster Darts Supplies Limited | Wholesale & retail | 2025 |
| Kidderminster Electrical Services Ltd | Manufacturing | 2024 |
| Kidderminster GAS & Plumbing Services ( W.M.) Limited | Construction | 2009 |
| Kidderminster Glass & Glazing Ltd | Professional & scientific | 2025 |
| Kidderminster Golf Club,Limited.(The) | Arts & recreation | 1929 |
| Kidderminster Grand Osteopaths Limited | Health & social care | 2015 |
| Kidderminster Hand Car Wash Ltd | Wholesale & retail | 2024 |
| Kidderminster Harriers Football Club Limited | Arts & recreation | 1950 |
| Kidderminster Heating Limited | Other services | 2013 |
| Kidderminster Inns Ltd | Hospitality | 2024 |
| Kidderminster Motor Car Club Limited | Arts & recreation | 1979 |
| Kidderminster Pest Control Limited | Administrative & support | 2012 |
| Kidderminster Petroleum Services Ltd | Manufacturing | 2014 |
| Kidderminster Railway Museum Trust Limited(The) | Arts & recreation | 1986 |
| Kidderminster RAW Dog Food Limited | Wholesale & retail | 2020 |
| Kidderminster Removals and Storage Limited | Extraterritorial | 2016 |
| Kidderminster Roofing Contracts Limited | Construction | 2011 |
| Kidderminster Roofing Ltd | Construction | 2024 |
| Kidderminster Roofing Services (WM) Ltd | Construction | 2025 |
| Kidderminster Scaffolding Ltd | Construction | 2021 |
| Kidderminster Trade Windows Ltd | Construction | 2020 |
| Kidderminster Vape Store Ltd. | Wholesale & retail | 2021 |
| Kiddman Consortium 2 Ltd | Health & social care | 2022 |
| Kiddy Mini Market 2 Ltd | Wholesale & retail | 2024 |
| Kiema Limited | Professional & scientific | 2014 |
| Kieran Nicholls Fitness Limited | Arts & recreation | 2019 |
| Kietskutz Limited | Hospitality | 2024 |
| Kinairy Ltd | Transport & logistics | 2021 |
| Kingfisher Industrial Group Limited | Financial services | 2005 |
| Kingfisher Industrial Limited | Construction | 1995 |
| Kingfisher Profiles Bending & Fabrication Ltd | Construction | 2017 |
| Kirkby Green Ltd | Administrative & support | 2022 |
| Kirsty Elliott HR and Recruitment Limited | Administrative & support | 2019 |
| Kirsty IMM Dressage Limited | Agriculture & fishing | 2018 |
| Kirwan Project Management Limited | Professional & scientific | 2021 |
| Kiski Studio Ltd | Professional & scientific | 2021 |
| Kitchenspecialists Sales Ltd | Construction | 2013 |
| Kite & Key Ltd | Manufacturing | 2026 |
| Kitsprain Ltd | Wholesale & retail | 2024 |
| Kluvansnart Ltd | Health & social care | 2024 |
| KMG Finance Limited | Hospitality | 2010 |
| Kmhd Flooring Acquisition Company Limited | Financial services | 2017 |
| Kmhd Flooring Holdco Limited | Financial services | 2017 |
| Kmhd Parent Company Limited | Financial services | 2017 |
| Knights Bureau Limited | Professional & scientific | 2025 |
| Knights Portfolio Limited | Hospitality | 2024 |
| Knoll Hill Management Company Limited | Households | 2017 |
| Knotink Ltd | Administrative & support | 2019 |
| Kofazzerf Ltd | Transport & logistics | 2024 |
| Kohdao Limited | Professional & scientific | 2007 |
| Koker Ltd. | Information & communication | 1998 |