| KJP Property Group Ltd | Real estate | 2019 |
| KLJ Keys Limited | Real estate | 2026 |
| KMS Learning Consultancy Ltd | Education | 2011 |
| Knights Grange Inn Limited | Hospitality | 2021 |
| Knights Mere Homes Limited | Real estate | 2017 |
| Koap Limited | Professional & scientific | 2009 |
| L&H Ventures Limited | Manufacturing | 2023 |
| Laek Transport Ltd | Transport & logistics | 2025 |
| Lakmatech UK Ltd | Information & communication | 2024 |
| Land Mark Property Rentals Ltd | Real estate | 2025 |
| Lanitron Limited | Professional & scientific | 2002 |
| LDS Properties (Cheshire) Limited | Real estate | 2022 |
| Legacy Consult Group Ltd | Professional & scientific | 2025 |
| Lemaro Limited | Real estate | 2006 |
| Lesley’S Pottery Ltd | Manufacturing | 2025 |
| Lewis Rodgers Limited | Professional & scientific | 2014 |
| Lexie Kitchens Ltd | Manufacturing | 2013 |
| Light Medical Ambulance Solutions Ltd | Health & social care | 2023 |
| Lime House Winsford Limited | Real estate | 2017 |
| Liquid Metering Instruments Holdings Limited | Financial services | 2022 |
| Liquid Metering Instruments Limited | Wholesale & retail | 1996 |
| LIT Socials Ltd | Professional & scientific | 2021 |
| Littler Grange Day Nursery Limited | Education | 2005 |
| LIV Belfast Opco Limited | Hospitality | 2019 |
| LIV Student (Sheff) Limited | Real estate | 2019 |
| LKB17 Ltd | Construction | 2019 |
| LMC 26 Limited | Hospitality | 2014 |
| Load Runner Limited | Construction | 1984 |
| Logancare Ltd | Health & social care | 2015 |
| Logiads Ltd | Professional & scientific | 2025 |
| Logovision Limited | Information & communication | 2015 |
| Lopka Transport Ltd | Transport & logistics | 2026 |
| Lost Then Found Dog Ltd | Wholesale & retail | 2026 |
| Lunapoint Asia Ltd | Administrative & support | 2011 |
| Lunapoint Investments Limited | Other services | 2015 |
| Lunapoint USA Ltd | Administrative & support | 2025 |
| Lunapparel Ltd | Wholesale & retail | 2021 |
| Luxe Exteriors Limited | Administrative & support | 2023 |
| LV Power Properties Limited | Real estate | 2017 |
| LV Power Solutions Limited | Manufacturing | 2008 |
| M & a Commercial Services Limited | Manufacturing | 2009 |
| M & M Holdings (Cheshire) Ltd | Financial services | 2024 |
| M & M Pallets Limited | Manufacturing | 2004 |
| M & N Build (NW) Ltd | Construction | 2025 |
| M & N Electrical Contractors Limited | Construction | 2017 |
| M & N Group U.K. Holdings Limited | Financial services | 2025 |
| M & N Kimberley Street Ltd | Real estate | 2023 |
| M & N Kylo Ltd | Construction | 2026 |
| M & N Plumbing and Heating (NW) Ltd | Construction | 2025 |
| M & N Projects Ltd | Construction | 2021 |
| M & N Property and Buildings Limited | Real estate | 2020 |
| M & N Renovations (NW) Ltd | Construction | 2025 |
| M & N Ribchester Ltd | Real estate | 2024 |
| M & N Russell Road Ltd | Real estate | 2023 |
| M & N Solar and Renewables Limited | Construction | 2025 |
| M & N SPV 1 Ltd | Real estate | 2025 |
| M & N SPV 2 Ltd | Real estate | 2025 |
| M&P Property Management Ltd | Real estate | 2018 |
| Macfarlane Concrete Pumping Ltd | Construction | 2007 |
| Mactek Limited | Agriculture & fishing | 2001 |
| Mads for Dogs Franchise Limited | Agriculture & fishing | 2025 |
| Mads for Dogs Ltd | Agriculture & fishing | 2024 |
| Magink Ltd | Wholesale & retail | 2026 |
| Mambo Goods Ltd | Administrative & support | 2020 |
| Mapcal Ltd | Professional & scientific | 2023 |
| Mar-Prep Limited | Manufacturing | 2017 |
| Marbury Business Solutions Ltd | Professional & scientific | 2021 |
| Marbury Health Care Ltd | Health & social care | 2023 |
| Mart Healthcare Services Ltd | Health & social care | 2020 |
| Martin and Snape Logistics Ltd | Transport & logistics | 2018 |
| Martin Auto Repairs Limited | Wholesale & retail | 2025 |
| Martin Shaw Roofing Limited | Construction | 2023 |
| Martin Warburton Property Solutions Ltd | Real estate | 2025 |
| Martins Roofing Services Ltd | Construction | 2025 |
| Martin’S Landscapes Limited | Administrative & support | 2025 |
| Marton Farm Residents Limited | Households | 2023 |
| Mauluc Limited | Hospitality | 2014 |
| Mavencore Water Technologies Ltd | Water & waste | 2025 |
| Maximator Maximum Pressure Ltd | Manufacturing | 2002 |
| Mazi Capital Ltd | Financial services | 2020 |
| MB Deliserv Ltd | Transport & logistics | 2025 |
| MCM2 Ltd | Professional & scientific | 2012 |
| Mcneill Homes & Investments Ltd | Real estate | 2021 |
| MCR Trading Ltd | Professional & scientific | 2015 |
| MD Cheshire Property Lettings Ltd | Real estate | 2026 |
| MDB Rentals Ltd | Real estate | 2019 |
| MDF Property Maintenance Limited | Construction | 2026 |
| Mdlf Properties Ltd | Households | 2025 |
| Meadowbank Farm Storage Ltd | Transport & logistics | 2023 |
| Medaesthetic Therapies Ltd | Professional & scientific | 2024 |
| Medilinc Ltd | Wholesale & retail | 2024 |
| Medlogic Global Holdings Limited | Professional & scientific | 1997 |
| Melody Roofline Limited | Construction | 2016 |
| Mereside Group Limited | Real estate | 2018 |
| MGJ Consulting Ltd | Information & communication | 2012 |
| MH Crafts Ltd | Extraterritorial | 2025 |
| Michael J Webb Ltd | Professional & scientific | 2021 |
| MID Cheshire Foodbank Ltd | Professional & scientific | 2013 |
| MID Cheshire Housekeeping Ltd | Administrative & support | 2023 |
| MID Cheshire Property Limited | Households | 2024 |