| Kate and Content Ltd | Professional & scientific | 2024 |
| KBD Holdings Limited | Financial services | 2025 |
| Kennerley Artisan Creations Limited | Manufacturing | 2025 |
| Kerala Meat HUT Limited | Wholesale & retail | 2024 |
| Kerver Group Limited | Agriculture & fishing | 2017 |
| Kfradool Ltd | Other services | 2024 |
| KGC QP Consulting Limited | Professional & scientific | 2017 |
| KGS Hostelry Ltd | Hospitality | 2018 |
| Kingsilver Property Company Limited | Construction | 2012 |
| Kingstone Hall Management Limited | Real estate | 2007 |
| KK Tanks Limited | Construction | 2017 |
| KLE Group Limited | Construction | 2020 |
| KLS Prospects Ltd | Real estate | 2024 |
| KMJ Mortgages Limited | Professional & scientific | 2015 |
| Kneadies Pizza Limited | Hospitality | 2022 |
| Knight Data & Automation Ltd | Information & communication | 2025 |
| Knights of Cheadle Limited | Wholesale & retail | 1986 |
| Knypersley Associates Limited | Professional & scientific | 2012 |
| Kooboo Auditing Ltd | Professional & scientific | 2025 |
| Ks.Ej Electrical Ltd | Construction | 2025 |
| L & D Upvc Limited | Construction | 2008 |
| L and L Online Limited | Wholesale & retail | 2023 |
| L Gardner & Sons Limited | Professional & scientific | 2005 |
| LAI Events Ltd | Administrative & support | 2024 |
| Lait Ltd | Wholesale & retail | 2019 |
| Lambert Road 65-71 Limited | Households | 2008 |
| Lambert Road 81-87 Limited | Households | 2008 |
| Lambert Road 89-95 Limited | Real estate | 2008 |
| LAN Ventures Ltd | Administrative & support | 2021 |
| Lascombe Consulting Limited | Extraterritorial | 1999 |
| Laser Hire Limited | Other services | 1985 |
| Laserama Limited | Extraterritorial | 2002 |
| Lavin Printers Limited | Manufacturing | 2017 |
| Lawnmower Spares UK Limited | Wholesale & retail | 2011 |
| LE Longford Limited | Hospitality | 2020 |
| Leafields Retreat Ltd | Agriculture & fishing | 2021 |
| Lean Associates Limited | Professional & scientific | 2005 |
| Learn With Cleo Ltd | Education | 2025 |
| Lens on Backwards Limited | Professional & scientific | 2022 |
| Let’S EAT Hub Ltd | Hospitality | 2025 |
| Levallois Ltd | Professional & scientific | 2025 |
| Liberty Leisure Services Limited | Wholesale & retail | 2007 |
| Life Psychology Ltd | Health & social care | 2021 |
| Lightfoot Property Rentals Limited | Real estate | 2016 |
| LIL K'S Hair Limited | Other services | 2016 |
| Little Acres Farm Ltd | Agriculture & fishing | 2025 |
| Little Dots Boutique Ltd | Wholesale & retail | 2020 |
| Little HAY Partners Limited | Agriculture & fishing | 2017 |
| Littleacre CW Homes Ltd | Real estate | 2026 |
| LMA Decorators Ltd | Construction | 2022 |
| Lojo Investments Limited | Real estate | 2022 |
| LOTUSDESIGNS22 Ltd | Wholesale & retail | 2023 |
| Love Hannah Ltd | Other services | 2023 |
| Lowes on Carter Street Limited | Hospitality | 2022 |
| Loxley Park Lodges Ltd | Hospitality | 2019 |
| LSH Uttoxeter Limited | Real estate | 2022 |
| Lucas Developments & Property Ltd | Construction | 2025 |
| Luke Mellor Farms Limited | Agriculture & fishing | 2017 |
| Lunn Hardware Limited | Wholesale & retail | 2003 |
| Lussoline Boats Ltd | Manufacturing | 2025 |
| Lysander Homes Limited | Construction | 2019 |
| M & L Farming Ltd. | Agriculture & fishing | 2012 |
| M & R Site Services Limited | Construction | 2001 |
| M a Carpentry Specialist Limited | Construction | 2026 |
| M a Joinery Services Limited | Construction | 2006 |
| M J B (Dovefields) Ltd | Real estate | 2002 |
| M J Barrett Developments (Special Projects) Ltd | Construction | 2019 |
| M J Rushton Ltd | Wholesale & retail | 2025 |
| M J Software Ltd | Administrative & support | 2013 |
| M Mcginley Limited | Other services | 2017 |
| M S Glazing Solutions Ltd | Construction | 2017 |
| M&E Burnett Limited | Construction | 2023 |
| M&G Property Holdings Limited | Real estate | 2021 |
| M.G. Mccutcheon & SON Ltd | Construction | 2005 |
| M.G. Osborn Limited | Construction | 2003 |
| M.J. Barrett (Developments) Limited | Real estate | 1998 |
| M.J. Barrett Constructions (Staffs.) Limited | Construction | 1999 |
| M.S. Sealants Limited | Construction | 2004 |
| Mabt Ltd | Wholesale & retail | 2024 |
| Mackinnon Commercial Properties Limited | Other services | 2020 |
| Mackinnon Holdings Limited | Real estate | 2015 |
| Mackinnon Property Development Limited | Construction | 2020 |
| Mackinnon Residential Properties Limited | Real estate | 2020 |
| Magna Cottages Limited | Real estate | 2021 |
| Magna IQ Limited | Information & communication | 2025 |
| Magna Systems Limited | Information & communication | 2017 |
| Mallory Property Services Limited | Real estate | 2024 |
| Maltings Garage (Uttoxeter) Limited | Wholesale & retail | 2003 |
| Manby Limited | Manufacturing | 2019 |
| Manor Golf Club (Kingstone) Limited | Arts & recreation | 1992 |
| Manor House Apartments Management Company Limited | Hospitality | 2002 |
| Manor TN Group Ltd | Real estate | 2026 |
| Mansell Park Farm Limited | Agriculture & fishing | 2015 |
| Marchwood Cars Ltd | Wholesale & retail | 2023 |
| Marine Consultancy Limited | Administrative & support | 2003 |
| Market Place Hair CUT Ltd | Other services | 2023 |
| Marl Hollow Management Company Limited | Households | 2012 |
| Married in NYC Ltd | Professional & scientific | 2019 |
| Martin MEE Ltd | Agriculture & fishing | 2013 |
| Marvellous Productions Limited | Arts & recreation | 2022 |