| Kids That Flourish Ltd | Education | 2022 |
| Kilo Delta Limited | Information & communication | 2010 |
| Kimbolton Management Company Limited | Households | 1998 |
| Kims Sampling Studio Ltd | Administrative & support | 2021 |
| Kinder Energy Limited | Manufacturing | 2022 |
| Kinetic Lifestyle Ltd. | Education | 2019 |
| Kinetic Tutors Ltd | Education | 2024 |
| King Kandy Limited | Wholesale & retail | 2009 |
| Kingett's Ltd | Professional & scientific | 2014 |
| Kingpin Supplies Ltd | Manufacturing | 2004 |
| Kipling Road (Ledbury) Residents Management Company Limited | Households | 2019 |
| Kitch & Co Interiors Limited | Professional & scientific | 2021 |
| Kite Fostering Consultancy Ltd | Health & social care | 2019 |
| Kitty Angels Services Limited | Other services | 2025 |
| Kiwi Construction Services LLP | | 2023 |
| Kiwi Homes Limited | Construction | 2021 |
| Kixx Stockport South Ltd | Education | 2022 |
| KJF Plumbing Ltd | Water & waste | 2022 |
| Kkawani Limited | Real estate | 2023 |
| KL HTR LLP | | 2024 |
| Klodian Construction Ltd | Construction | 2021 |
| Kloodos Wellness Solutions Limited | Professional & scientific | 2023 |
| KM Solutions Limited | Professional & scientific | 2016 |
| Kmarlo Ltd | Transport & logistics | 2018 |
| KMB Consultancy (Stourbridge) Limited | Financial services | 2009 |
| KMD Ventures Ltd | Real estate | 2016 |
| KMR Holdings T/A Vardon Covenience Ltd | Hospitality | 2026 |
| Knightstone Legal Services Limited | Professional & scientific | 2011 |
| Knowbury Holdings Limited | Real estate | 2002 |
| Knowle Hall Wharf Limited | Manufacturing | 2014 |
| KO Consultancy Limited | Professional & scientific | 2026 |
| KOA Locksmith & Boarding UP Services Ltd | Construction | 2016 |
| KOB Publishing Limited | Information & communication | 2026 |
| Koncept Global Ltd | Information & communication | 2010 |
| Koru Project Services Limited | Professional & scientific | 2019 |
| KOT Sarai Ltd | Transport & logistics | 2024 |
| KOT Trucks Ltd | Transport & logistics | 2025 |
| KP Carpets Limited | Wholesale & retail | 2011 |
| KP Maintenance Services Ltd | Construction | 2019 |
| Kp-Concepts Limited | Wholesale & retail | 2023 |
| KPB GAS Heating and Plumbing Limited | Construction | 2020 |
| Krosi Services Limited | Administrative & support | 2022 |
| KS Glass & Glazing Limited | Administrative & support | 2025 |
| KS Landco Coventry Limited | Construction | 2020 |
| Ksconvenince Limited | Wholesale & retail | 2017 |
| KSR Professional Limited | Information & communication | 2026 |
| Ksrai Ltd | Professional & scientific | 2026 |
| Kuka Systems UK Limited | Manufacturing | 1974 |
| Kurdish Scissors Ltd | Other services | 2024 |
| KVA Trading Services Limited | Construction | 2023 |
| KVS Prime Ltd | Real estate | 2025 |
| KW Alloys Limited | Wholesale & retail | 2022 |
| KWB Accounting Limited | Professional & scientific | 2019 |
| Kwikfill Limited | Wholesale & retail | 1986 |
| KWS Engineering Services Limited | Manufacturing | 1999 |
| Kyri's Barbers Limited | Other services | 2018 |
| L & M Holiday Lets Ltd | Real estate | 2025 |
| L Dolphin Properties Limited | Real estate | 2025 |
| L J & M Developments Limited | Construction | 2018 |
| L Price Properties Ltd | Real estate | 2018 |
| L&A Building Ltd | Construction | 2023 |
| L&D Sofa Lounge Ltd | Wholesale & retail | 2026 |
| L.T.C. Tyres and Exhausts Limited | Wholesale & retail | 2002 |
| LA Stays Limited | Real estate | 2025 |
| LA Steag Ltd | Wholesale & retail | 2025 |
| Labels Direct Limited | Manufacturing | 2003 |
| LAC Refrigeration & Air Conditioning Ltd | Construction | 2024 |
| Lacon Project Solutions Ltd | Construction | 2010 |
| Ladp Ltd | Real estate | 2020 |
| Lady Telford Limited | Real estate | 2026 |
| Lakehurst Limited | Manufacturing | 1988 |
| Laminam UK Limited | Wholesale & retail | 2019 |
| Lana Automotive Limited | Wholesale & retail | 2025 |
| Lancing Consultancy Limited | Health & social care | 2013 |
| Lancing Property Solutions Limited | Construction | 2020 |
| Landscape Architect Services Ltd | Construction | 2020 |
| Landscape Architectural Services Ltd | Construction | 2024 |
| Landscape Excel Limited | Administrative & support | 2000 |
| Landscapia Ltd | Administrative & support | 2016 |
| Landscapia Outdoor Living Limited | Wholesale & retail | 2025 |
| Lane Green Projects Limited | Real estate | 2016 |
| Laney Electronics Limited | Manufacturing | 1987 |
| Laney Green Holdings Limited | Professional & scientific | 2019 |
| Lantern Chinese Limited | Hospitality | 2025 |
| Lapal GAS Limited | Construction | 2017 |
| Lapal Grange Preschool Limited | Education | 2016 |
| Lapal House Limited | Health & social care | 2023 |
| LAR Stourbridge Limited | Wholesale & retail | 2018 |
| Laren Limited | Other services | 2020 |
| Late Date Holidays Limited | Administrative & support | 2005 |
| Laundry DRY Cleaners Lapal Ltd | Other services | 2024 |
| Laurenko Limited | Manufacturing | 2015 |
| Lavixury Ltd | Wholesale & retail | 2025 |
| Lawfinity Limited | Information & communication | 2022 |
| Lawley Property Ltd | Real estate | 2025 |
| Lawnswood Fencing Limited | Manufacturing | 1979 |
| Lawnswood Holdings Limited | Financial services | 2023 |
| Lawrence Masonry Limited | Construction | 2021 |
| Layla Grace Ltd | Wholesale & retail | 2011 |
| LBF Fundright Ltd. | Administrative & support | 1999 |