| Keith Roberts Consulting Limited | Professional & scientific | 2008 |
| Kelly FOX Limited | Professional & scientific | 2016 |
| Kenzoku Martial Arts Limited | Education | 2018 |
| Kesterley Limited | Real estate | 2016 |
| Kevin Lwin Limited | Professional & scientific | 2023 |
| KFL Engineering Ltd | Professional & scientific | 2024 |
| Kikis Food Limited | Hospitality | 2026 |
| Kiki’S Table Ltd | Hospitality | 2025 |
| Kingscurtains Ltd | Other services | 2012 |
| Kingsway Commercial Consultancy Limited | Professional & scientific | 2021 |
| Kinz Investments Limited | Financial services | 2023 |
| Kirsty Electronics Limited | Professional & scientific | 2017 |
| KJW Landscapes & Driveways Ltd | Construction | 2019 |
| Kkalc Limited | Financial services | 2017 |
| KLH Home and Beauty Ltd | Wholesale & retail | 2025 |
| KM Rentals Limited | Administrative & support | 2007 |
| KMR Lettings & Management Ltd | Real estate | 2017 |
| KNH Technical Ltd | Manufacturing | 2025 |
| Knight Brown Accountants Ltd | Professional & scientific | 2011 |
| Knight Brown Financial Services Ltd | Financial services | 2019 |
| Knight's Wood Studio Ltd | Manufacturing | 2022 |
| Knights Narrowboats Limited | Manufacturing | 2025 |
| Knowlson Associates Ltd | Professional & scientific | 2020 |
| Kora Electronics Limited | Administrative & support | 2023 |
| KP Statistical Consulting Limited | Professional & scientific | 2020 |
| Krahn UK Limited | Manufacturing | 1987 |
| Kryoforgetech Ltd | Information & communication | 2025 |
| Ktdg Consultancy Limited | Administrative & support | 2026 |
| KTF Construction Limited | Construction | 2024 |
| L & K Operations Ltd | Construction | 2024 |
| L & L Catering Cheshire Ltd | Hospitality | 2019 |
| L H Cooling Limited | Construction | 2010 |
| L'Wren Hairdressing Ltd | Other services | 2007 |
| LA Maternelle Ltd. | Other services | 2000 |
| La-Beauty U.K. Ltd | Other services | 2023 |
| Lancea Developments Ltd | Real estate | 2003 |
| Lantrix Internet Solutions Limited | Information & communication | 2014 |
| Laurel Food Limited | Hospitality | 2025 |
| Lavington Consulting Limited | Professional & scientific | 2019 |
| LDG Electrical Solutions Limited | Construction | 2003 |
| Leaklok Limited | Wholesale & retail | 2022 |
| Leaven Limited | Professional & scientific | 2011 |
| LEE Bell Agencies Ltd | Wholesale & retail | 2022 |
| LEE, Warriner & Company Limited | Financial services | 1997 |
| Leopard Jones Limited | Wholesale & retail | 2026 |
| Levelchase Limited | Hospitality | 1987 |
| Lichfield Ventures Ltd | Real estate | 2022 |
| Lightz Camera Action Ltd | Energy | 2022 |
| Lilybeans Coffee Ltd | Hospitality | 2023 |
| Limitless Leadership Limited | Other services | 2020 |
| Linden Equities Limited | Other services | 2024 |
| Link-Us Associates Limited | Hospitality | 2016 |
| Linki Limited | Professional & scientific | 2010 |
| Little Green Wedding Ltd | Manufacturing | 2022 |
| Live Long Limited | Wholesale & retail | 2023 |
| Liverpool DAB Ltd | Information & communication | 2021 |
| Living Concepts Design Ltd | Professional & scientific | 2019 |
| Llama Events Ltd | Hospitality | 2026 |
| Local DAB Association Ltd | Other services | 2024 |
| Lodley Cattery Limited | Other services | 2016 |
| Lofthouse Eventers Limited | Other services | 2013 |
| Logistics & Duty Consultancy Limited | Professional & scientific | 2002 |
| Logos Controls Ltd | Construction | 2021 |
| LOKY7 Ltd | Information & communication | 2026 |
| Long Range Security Ltd | Professional & scientific | 2026 |
| Lorna Timms Advanced Clinical Practitioner Ltd | Health & social care | 2026 |
| Lost Boys Design Limited | Professional & scientific | 2018 |
| Love Lane Equine & Pet Feeds Ltd | Wholesale & retail | 2025 |
| Love Music Trust | Education | 2012 |
| Lovis Forensic Investigation Limited | Administrative & support | 2015 |
| LP Ecological Services Ltd | Professional & scientific | 2024 |
| LS Gymnastics Crewe Academy Limited | Arts & recreation | 2016 |
| Lumen Assets Ltd | Financial services | 2020 |
| Lumos Aluminium Ltd | Manufacturing | 2020 |
| Lunch Money TCG Ltd | Wholesale & retail | 2025 |
| Luther Holdings Limited | Financial services | 2023 |
| Lyiem Properties Ltd | Real estate | 2023 |
| Lyngard Ltd | Manufacturing | 2017 |
| M C Training Limited | Administrative & support | 2024 |
| M K Build IT! Limited | Construction | 2005 |
| M T Recruitment Limited | Other services | 2018 |
| M V Events Limited | Professional & scientific | 2011 |
| M.I. Engineering UK Limited | Manufacturing | 2000 |
| M.J.T. Joinery Ltd | Construction | 2014 |
| M2 Joinery Ltd | Manufacturing | 2025 |
| Mabisel Limited | Information & communication | 2026 |
| Mabqp Ltd | Professional & scientific | 2018 |
| Machine Logistics Ltd | Manufacturing | 2007 |
| Macintosh Project Management Ltd | Administrative & support | 2012 |
| Macowen Construction Limited | Construction | 2019 |
| Magus Seismic Technology Limited | Manufacturing | 1987 |
| Malkins Golf Club Limited | Arts & recreation | 2025 |
| Manchester & District Rugby Union Referees Society Limited | Arts & recreation | 2019 |
| Manchester Tree Services Ltd | Administrative & support | 2025 |
| Manny LE Goff Ltd | Information & communication | 2022 |
| Manor Farm Consultancy Limited | Professional & scientific | 2020 |
| Maple (168) Limited | Households | 2002 |
| Maple Property Lettings Limited | Real estate | 2024 |
| Margaret Long Engineering Limited | Manufacturing | 2019 |
| Mark Evanson Limited | Wholesale & retail | 2015 |