| Kingstone Land and Property Co. Ltd | Construction | 2021 |
| Kingswinford Deliveries Limited | Hospitality | 2025 |
| Kingswinford Fire Protection Limited | Public administration | 2002 |
| Kingswinford Fish Bar Limited | Hospitality | 2012 |
| Kingswinford Heating Ltd | Construction | 2021 |
| Kingswinford Installations Limited | Construction | 2009 |
| Kingswinford Knights Ltd | Arts & recreation | 2023 |
| Kingswinford Motoring Services Ltd | Wholesale & retail | 2015 |
| Kingswinford Orangeries and Extensions Ltd | Construction | 2014 |
| Kingswinford Phones Ltd | Wholesale & retail | 2019 |
| Kingswinford Physiotherapy Clinic Ltd | Health & social care | 2010 |
| Kingswinford Traders Limited | Wholesale & retail | 2021 |
| Kingswinford Tree Surgery Ltd | Agriculture & fishing | 2007 |
| Kingswinford Tyres Limited | Wholesale & retail | 2003 |
| Kingswinford Window Doctor Limited | Extraterritorial | 2009 |
| Kingswinford Windows Limited | Extraterritorial | 2008 |
| Kirklands Estates Limited | Real estate | 1995 |
| KJ Properties Group Ltd | Real estate | 2023 |
| KJE Interiors Ltd | Construction | 2016 |
| KJW Contracts Ltd | Construction | 2021 |
| Kksmedia Ltd | Professional & scientific | 2024 |
| Kksresidences Ltd | Real estate | 2025 |
| Klariti Training Limited | Professional & scientific | 1999 |
| KLM Cleaning (Westmidlands) Ltd | Administrative & support | 2024 |
| KLM Home Improvements & Renovations Ltd | Construction | 2021 |
| KLR Commercial LLP | | 2019 |
| KLS Restaurants Ltd | Hospitality | 2022 |
| KNW Investments Ltd | Real estate | 2021 |
| Koucollects Ltd | Wholesale & retail | 2026 |
| Kppc Solutions Ltd | Information & communication | 2023 |
| KS & LS Holdings Ltd | Financial services | 2023 |
| KSB Properties (Midlands) Limited | Real estate | 2022 |
| KST Imaging Ltd. | Administrative & support | 2019 |
| Kuli Enterprises Limited | Wholesale & retail | 2026 |
| Kurtis Catering Limited | Wholesale & retail | 2002 |
| Kuto Kodalo Ltd | Hospitality | 2025 |
| KW PCN Ltd | Health & social care | 2023 |
| Kwtmedia Limited | Information & communication | 2021 |
| L & C Commercial Limited | Real estate | 2000 |
| L & C Estates Limited | Professional & scientific | 1999 |
| L & C Europe Limited | Professional & scientific | 2001 |
| L & C Overseas Limited | Real estate | 1989 |
| L & C Securities Limited | Real estate | 2000 |
| L & H Barker Properties Limited | Real estate | 2024 |
| L J S Accountants Limited | Professional & scientific | 2010 |
| L&A Holdings Ltd | Real estate | 2016 |
| L&E Roofing Services Ltd | Construction | 2026 |
| L&S Decorators Limited | Construction | 2016 |
| L. Thompson Limited | Administrative & support | 2016 |
| L.C.P. Energy Limited | Administrative & support | 2017 |
| L.C.P. Estates Limited | Real estate | 1993 |
| L.C.P. Group 2 Limited | Professional & scientific | 2026 |
| L.C.P. Investments 2 (Severn) Limited | Real estate | 2026 |
| L.C.P. Investments Limited | Real estate | 2007 |
| L.C.P. Ireland 2 Limited | Real estate | 2026 |
| L.C.P. Management Limited | Professional & scientific | 1987 |
| L.C.P. Properties (Screen Co) Limited | Professional & scientific | 2024 |
| L.C.P. Property Investments Limited | Real estate | 2021 |
| L.C.P. Real Estate Limited | Real estate | 2005 |
| L.C.P. Retail Limited | Real estate | 1990 |
| L.C.P. Retail Properties Limited | Real estate | 2023 |
| L.C.P. Securities Limited | Real estate | 1989 |
| L.L.Tiling Ltd | Construction | 2013 |
| LA MES Bella Ltd | Agriculture & fishing | 2024 |
| LA Petite Concierge Limited | Other services | 2010 |
| Labelspecialist Limited | Wholesale & retail | 2023 |
| Lahama Properties Limited | Real estate | 2023 |
| Lambscapes Limited | Administrative & support | 2015 |
| Lancaster House (Heath Hayes) Management Limited | Real estate | 2004 |
| Lancells Ltd | Information & communication | 2016 |
| Landaid Limited | Professional & scientific | 1988 |
| Langston Property Ltd | Real estate | 2018 |
| Larch Road News & OFF Licence Limited | Wholesale & retail | 2009 |
| Laser Above Ltd | Other services | 2022 |
| Laser Scout Limited | Manufacturing | 2020 |
| Last Byte Ltd | Information & communication | 2025 |
| Latex Devotion Ltd | Extraterritorial | 2023 |
| Launch Electrical Ltd | Construction | 2021 |
| Laurence Wadlow PPM Limited | Professional & scientific | 2012 |
| Lawlor Press Brake Tooling Ltd | Wholesale & retail | 2015 |
| Lawson Projects (Enville) Ltd | Construction | 2010 |
| LCD Heating & Electrical Ltd | Construction | 2022 |
| LCS Compliance Ltd | Professional & scientific | 2026 |
| Learn With Lolonyo Ltd | Education | 2023 |
| LEB Group Limited | Professional & scientific | 2025 |
| Leddington Transport Ltd | Transport & logistics | 2019 |
| Leemar Upholstery Limited | Manufacturing | 2001 |
| Lending Direct Limited | Financial services | 2011 |
| Lenny Trading Ltd | Wholesale & retail | 2025 |
| Leoclad Supplies Ltd | Wholesale & retail | 2025 |
| Lets Dance Dancewear Limited | Wholesale & retail | 2010 |
| Lets GET Crafty Wholesale Ltd | Wholesale & retail | 2020 |
| Letuka Limited | Health & social care | 2018 |
| Level 9 Services Limited | Administrative & support | 2017 |
| Levitate Distribution Ltd | Wholesale & retail | 2019 |
| Lewis Carpentry Limited | Construction | 2008 |
| LGX Roofing & Construction Ltd | Construction | 2012 |
| Liam Properties Limited | Real estate | 2018 |
| LIB Luxe Beauty Ltd | Other services | 2020 |
| Liberate Education Ltd | Education | 2022 |