| Little BOP Limited | Hospitality | 2024 |
| Little Loves Quality Wedding Childcare Ltd | Health & social care | 2024 |
| Littlehay Manor Management Company Limited | Real estate | 2010 |
| Live Minimalli Ltd | Administrative & support | 2021 |
| Live Republic 1 Ltd | Hospitality | 2026 |
| Live Republic 2 Ltd | Hospitality | 2026 |
| Live Republic Ltd | Hospitality | 2024 |
| Live Republic Z Ltd | Hospitality | 2023 |
| Living Landscapes (Staffs) Ltd | Administrative & support | 2014 |
| LJB Projects (Midlands) Ltd | Construction | 2024 |
| LMP (UK) Limited | Manufacturing | 2011 |
| Long Acre Meadow Ltd | Wholesale & retail | 2024 |
| Longdon Liquors Limited | Manufacturing | 2020 |
| Loot Luck Ltd | Wholesale & retail | 2026 |
| Lord BUG Limited | Information & communication | 1978 |
| Lord of the Timber LLP | | 2025 |
| Lotus Ruby Limited | Hospitality | 2023 |
| Louander Developments Limited | Real estate | 2011 |
| Lovely Living Limited | Construction | 2017 |
| Loxley Plantation Solar Ltd | Energy | 2024 |
| LP Retail Rugeley Ltd | Wholesale & retail | 2025 |
| LR1 Festival 1 Ltd | Hospitality | 2026 |
| LRZ Festival 1 Ltd | Hospitality | 2026 |
| LS Brows and Beauty Limited | Other services | 2024 |
| Lukash Engineering Limited | Construction | 2003 |
| Luna Events Limited | Wholesale & retail | 2023 |
| Luxe Tops Ltd | Manufacturing | 2025 |
| Lyzard Limited | Professional & scientific | 2002 |
| M & R Auto Services Limited | Wholesale & retail | 2024 |
| M & T Facilities Ltd | Professional & scientific | 2008 |
| M a C Groundwork Contractors Ltd | Construction | 2003 |
| M a Trading & Consultancy Limited | Professional & scientific | 2022 |
| M and C Solutions Ltd | Wholesale & retail | 2023 |
| M Bland Transport Ltd | Transport & logistics | 2003 |
| M D Roofing Services Ltd | Construction | 2013 |
| M G Calibration Limited | Professional & scientific | 2025 |
| M J Accountancy Ltd | Professional & scientific | 2003 |
| M J Kite Investment Ltd | Financial services | 2025 |
| M J Round Plant Hire Limited | Construction | 2014 |
| M L Rochell Ltd | Construction | 2026 |
| M R C Electrical Services Ltd | Construction | 2003 |
| M Site Limited | Construction | 2014 |
| M. B. Maas Ltd | Construction | 2005 |
| M. J. Ellwood Consulting Limited | Professional & scientific | 2020 |
| M.I. Automation Limited | Administrative & support | 2002 |
| M.I. Construction Limited | Construction | 2002 |
| MAC MX Racing Ltd | Arts & recreation | 2026 |
| MAC Plant Ltd | Construction | 2006 |
| MAC Properties (Staffs) Ltd | Real estate | 2007 |
| Machine Tool Repairs Ltd | Manufacturing | 2019 |
| Mackie Direct Ltd | Wholesale & retail | 2020 |
| MACSEN3 Ltd | Real estate | 2018 |
| Madwomen Ltd | Professional & scientific | 2015 |
| Maestro Promotions Limited | Administrative & support | 1994 |
| Magna Rubrum Collis Limited | Agriculture & fishing | 2020 |
| Magpie Landscapes Ltd | Administrative & support | 2019 |
| Maintech Recruitment Limited | Administrative & support | 2018 |
| Maison J. Myles Ltd | Wholesale & retail | 2026 |
| Majestic Pets Limited | Wholesale & retail | 2024 |
| MAL Leadwork Specialists Ltd | Construction | 2024 |
| Manappat Foundation UK | Health & social care | 2017 |
| Manchester City Parking Ltd | Other services | 2024 |
| Mandarin Property Ltd | Real estate | 2025 |
| Mandher Properties Limited | Real estate | 2014 |
| Manor Design & Print Ltd | Manufacturing | 2000 |
| Manor Properties (Midlands) Ltd. | Real estate | 2011 |
| Maple (189) Limited | Households | 2003 |
| Maple Hayes Home Farm Limited | Agriculture & fishing | 1950 |
| Margabe Limited | Real estate | 2017 |
| Margav Renewables Ltd | Construction | 2020 |
| Marine Arts Limited | Extraterritorial | 2017 |
| Marion Homes Midlands Ltd | Construction | 2021 |
| Mark FA Ltd | Financial services | 2024 |
| MARK1HEATING Ltd | Construction | 2024 |
| Marshall & Co (Stafford) Ltd | Professional & scientific | 2009 |
| Marsharum Ltd | Transport & logistics | 2025 |
| Matrix Group Holdings Ltd | Financial services | 2022 |
| Matrix Group Services Limited | Arts & recreation | 2017 |
| MATRIX19 Ltd | Professional & scientific | 2023 |
| Matt Crompton Farrier Services Ltd | Agriculture & fishing | 2026 |
| Matthew Alderson Property Solutions (Maps) Limited | Real estate | 2025 |
| Mavesyn Property Investments Limited | Real estate | 2021 |
| May-Smith Haulage Ltd | Transport & logistics | 2023 |
| Mayflower Dish Limited | Hospitality | 2021 |
| MB Motors Rugeley Limited | Manufacturing | 2014 |
| MB Motors Sales Rugeley Limited | Wholesale & retail | 2025 |
| MBH Accounts Services Ltd | Professional & scientific | 2007 |
| Mccartney & Green (Titan 1982) Limited | Construction | 1982 |
| Mcjt Properties Ltd | Real estate | 2022 |
| Mcmullen Group Limited | Professional & scientific | 2016 |
| Mcpb Ltd | Financial services | 2011 |
| MD Site Solutions Limited | Administrative & support | 2015 |
| MDM Property Services Limited | Real estate | 2025 |
| Mead Property Holdings Limited | Real estate | 2005 |
| Media Discovery Limited | Extraterritorial | 2012 |
| MEK Innovations Ltd | Professional & scientific | 2023 |
| Mellow Media Ltd | Professional & scientific | 2023 |
| Menafest Community Interest Company | Arts & recreation | 2023 |
| Mercer & Green Property Ltd | Real estate | 2021 |
| Mercia Air Ltd | Wholesale & retail | 2015 |