| Lifeline Solutions Ltd | Health & social care | 2024 |
| Limon Attire Limited | Wholesale & retail | 2015 |
| Livinggreat Limited | Construction | 2022 |
| LJK Haulage Limited | Transport & logistics | 2019 |
| Long Distance Club Limited | Information & communication | 2024 |
| Lovehairlovebeauty Limited | Other services | 2009 |
| LP Plonowski Ltd | Construction | 2020 |
| Lucca Haulage Limited | Transport & logistics | 2019 |
| Lucien Michiels Ltd | Information & communication | 2025 |
| Lucky BEE Driving School Limited | Education | 2025 |
| Lumera Group Ltd | Construction | 2025 |
| Luxury Linens (MCR) Ltd | Wholesale & retail | 2014 |
| LVT Sales Limited | Administrative & support | 2019 |
| Lylqr Ltd | Wholesale & retail | 2025 |
| Lyons Light Haulage Ltd | Transport & logistics | 2026 |
| M & N Chapel Holdings Ltd | Real estate | 2024 |
| M Asghar Ltd | Wholesale & retail | 2025 |
| M B H Global Limited | Wholesale & retail | 2014 |
| M Buckley Property Lettings Limited | Real estate | 2015 |
| M C Taverns Ltd | Hospitality | 2025 |
| M N Buckley Ltd | Wholesale & retail | 2026 |
| M S Rajpoot Trading Limited | Wholesale & retail | 2020 |
| M Sheridan Holdings Limited | Financial services | 2024 |
| M W Hire Limited | Administrative & support | 2008 |
| M&R Tech Ltd | Information & communication | 2025 |
| M.A.B Couriers Ltd | Transport & logistics | 2025 |
| Magnet Contracts Limited | Manufacturing | 2002 |
| Magnum M.O.T. & Repairs Ltd | Wholesale & retail | 2015 |
| Mahar Care Limited | Health & social care | 2025 |
| MAL Properties One Ltd | Real estate | 2025 |
| Mallett Homes Ltd | Real estate | 2023 |
| Manchester Clean Limited | Administrative & support | 2022 |
| Manchester Home Inspector Services Ltd. | Construction | 2007 |
| Manchester Mobile Mechanic Ltd. | Wholesale & retail | 2023 |
| Manchester Pipework Fabrication Ltd | Manufacturing | 2026 |
| Marbec Property Ltd | Households | 2025 |
| Marple Hairdressing Limited | Other services | 2014 |
| Mars Legacy International Ltd | Professional & scientific | 2026 |
| Marsh's OFF Licence Ltd | Wholesale & retail | 2024 |
| Marwil Fabrications Ltd | Manufacturing | 2011 |
| Maverick Technology Innovations Group Ltd | Information & communication | 2025 |
| Mayfair UK Holding Ltd | Financial services | 2026 |
| MBS Electrical North West Limited | Construction | 2014 |
| Mcewan & SON Property Management Ltd | Real estate | 2020 |
| MCR Content Studios Ltd | Professional & scientific | 2025 |
| Mellogher Limited | Professional & scientific | 2018 |
| Mellor View Properties Limited | Real estate | 2021 |
| Merion Consultancy Ltd | Construction | 2019 |
| MHD Data Hub Limited | Information & communication | 2023 |
| MIA Store Ltd | Wholesale & retail | 2020 |
| Miah's Mini Market Limited | Wholesale & retail | 2018 |
| Midlands Management Limited | Professional & scientific | 2000 |
| Mills Heating Northwest Ltd | Construction | 2025 |
| Milton Properties(Hyde)Limited | Real estate | 1946 |
| Mirfin Cleaning Limited | Construction | 2015 |
| MJB Consultancy Manchester Ltd | Professional & scientific | 2019 |
| MJM Electrical Solutions Limited | Construction | 2026 |
| MKB Developments (NW) Ltd | Construction | 2025 |
| MKS Innovation Hub Limited | Professional & scientific | 2022 |
| Mllb Investments Limited | Professional & scientific | 2013 |
| MM Plumb and Heat Ltd | Construction | 2023 |
| MM Plumbing & Heating Ltd | Construction | 2019 |
| Modular Armour Systems (UK) Ltd | Manufacturing | 2025 |
| Montervia Ltd | Real estate | 2025 |
| Moonscale Ltd | Real estate | 2026 |
| Moor Contract Furniture Ltd | Manufacturing | 2016 |
| Motor Unit Ltd | Wholesale & retail | 2025 |
| Mount Silsbury Holdings Ltd | Real estate | 2020 |
| Mseluad Ventures Ltd | Wholesale & retail | 2026 |
| Mubark Limited | Hospitality | 2025 |
| Multiquip (UK) Limited | Wholesale & retail | 1998 |
| Multisaver Dunkinfield Ltd | Wholesale & retail | 2018 |
| Multiscaff Hire and Sales Ltd | Extraterritorial | 2017 |
| Munch Mosaic Ltd | Wholesale & retail | 2025 |
| Muon Core Ltd | Construction | 2016 |
| Murray RIX (Northern) Ltd. | Professional & scientific | 1993 |
| Murray RIX Holdings Ltd | Administrative & support | 2023 |
| Muza Limited | Wholesale & retail | 2020 |
| MV Legacy Ltd | Information & communication | 2026 |
| My Kaizen Mindset Ltd | Information & communication | 2022 |
| My Plan for Life Limited | Administrative & support | 2025 |
| Mymuslimgifts Limited | Wholesale & retail | 2025 |
| N K K Properties Ltd | Real estate | 2025 |
| N MAY Farriers Ltd | Agriculture & fishing | 2019 |
| Naeemedia Ltd | Professional & scientific | 2025 |
| Nana Josie's Ltd | Hospitality | 2024 |
| Nanelwell Limited | Professional & scientific | 2016 |
| Nara SKN Ltd | Manufacturing | 2025 |
| Needs Electrical Ltd | Wholesale & retail | 2023 |
| New World Structural Solutions Ltd | Construction | 2022 |
| Newburn Surface Solutions Ltd | Administrative & support | 2024 |
| Newby Building Services Limited | Professional & scientific | 1992 |
| Newcoat Garage Solutions Limited | Wholesale & retail | 2009 |
| Newscape Land Rentals Ltd | Real estate | 2026 |
| Ngegk Ltd | Professional & scientific | 2018 |
| Nhmls Limited | Health & social care | 2024 |
| Nisa Property Management Limited | Real estate | 2025 |
| Nishtiman Barber Ltd | Other services | 2019 |
| NO 76 Deli Ltd | Wholesale & retail | 2023 |
| Noelia Torrealba Limited | Health & social care | 2015 |