| Manchester Event Catering Limited | Hospitality | 2020 |
| Manchester Fashion Festival Limited | Professional & scientific | 2015 |
| Manchester Fence Hire Limited | Other services | 1992 |
| Manchester Leathermen Ltd | Other services | 2016 |
| Manchester Unique Ford Centre Limited | Extraterritorial | 2005 |
| Mandale Weaving Limited | Manufacturing | 1996 |
| Mandall Engineering Limited | Manufacturing | 1959 |
| Mandi Beauty Aesthetics Ltd | Other services | 2025 |
| Mandible Limited | Professional & scientific | 2024 |
| Mandip Kaur CRM Consultancy Ltd | Professional & scientific | 2025 |
| Mandrake Technology Limited | Information & communication | 1997 |
| Mandy's Homecare Services Limited | Health & social care | 2025 |
| Mane Extensions Limited | Other services | 2017 |
| Mane Shop Fronts Ltd | Construction | 2014 |
| Mane the Label Ltd | Other services | 2020 |
| Manesty Machines Limited | Professional & scientific | 1935 |
| Manfirth UK Ltd | Wholesale & retail | 2025 |
| Manga's 786 Limited | Real estate | 2024 |
| Mango Wood Ltd | Real estate | 2024 |
| Manguarding Group Limited | Financial services | 2025 |
| Manguarding Solutions Limited | Administrative & support | 2025 |
| Manhas Global Limited | Wholesale & retail | 2026 |
| Manhattan Investment Group Limited | Financial services | 2025 |
| Manhattan Luxury Suites Ltd | Real estate | 2022 |
| Manhaus Consulting Ltd | Information & communication | 2025 |
| Manheim Global Management UK Limited | Professional & scientific | 2015 |
| Manheim Holdings Limited | Professional & scientific | 2014 |
| Mani's Clippers Ltd | Other services | 2025 |
| Manifesto Technologies Limited | Financial services | 2022 |
| Manik Cyber Services Ltd. | Information & communication | 2026 |
| Manila Fashions Limited | Wholesale & retail | 1989 |
| Manila.Design Ltd | Professional & scientific | 2023 |
| Maniross Ltd | Wholesale & retail | 2023 |
| Manis Multi Task Ltd | Administrative & support | 2019 |
| Manish Parmar Ltd | Professional & scientific | 2026 |
| Manjinder S Logistics Ltd | Transport & logistics | 2022 |
| Manjit's Kitchen Ltd | Hospitality | 2018 |
| Manju Trading Company Ltd | Public administration | 2020 |
| Mankem Limited | Health & social care | 2024 |
| Manki Trade Ltd | Wholesale & retail | 2022 |
| Manku Bros Ltd | Wholesale & retail | 2012 |
| Manku Construction Limited | Construction | 1996 |
| Manku Properties Ltd | Real estate | 2019 |
| Manlove Alliott Investments Limited | Administrative & support | 2018 |
| Mann Basra Estates Limited | Real estate | 2016 |
| Manna Health Limited | Manufacturing | 2024 |
| Mannagementxp Limited | Professional & scientific | 2016 |
| Manneh Estates Ltd | Real estate | 2025 |
| Manneh Shipping Ltd | Transport & logistics | 2024 |
| Manning Stainton Limited | Extraterritorial | 1999 |
| Manning Stainton Surveyors and Valuers Limited | Extraterritorial | 2019 |
| Mannion Brickwork and Building Ltd | Construction | 2023 |
| Manny Bellagio Ltd | Wholesale & retail | 2019 |
| Manny Fisheries Ltd | Hospitality | 2025 |
| Manny Hussain Ltd | Professional & scientific | 2017 |
| Manor Court Management (Leeds) Limited | Administrative & support | 2002 |
| Manor Croft Flat Management Company Limited | Households | 1982 |
| Manor Croft Gardens (2021) Limited | Households | 2022 |
| Manor Farm (Snaith) Management Company Limited | Households | 2015 |
| Manor Field Hall | Health & social care | 1994 |
| Manor Incorporation Limited | Wholesale & retail | 2025 |
| Manor Mews Limited | Households | 2021 |
| Manor Oak Fencing Ltd | Administrative & support | 2026 |
| Manor Oaks Holdings Limited | Real estate | 2025 |
| Manor Property Ltd | Real estate | 2015 |
| Manor Residential Limited | Real estate | 2013 |
| Manor Rise Limited | Real estate | 2022 |
| Manor Store (Rothwell) Ltd | Wholesale & retail | 2022 |
| Manor Street Industries Limited | Real estate | 2012 |
| Manozi Limited | Hospitality | 2024 |
| Manpower National Business Support Limited | Administrative & support | 2023 |
| Manrochem Global Associates Limited | Professional & scientific | 2015 |
| Mansa Adama Manneh Limited | Health & social care | 2025 |
| Mansell Mortgages Ltd | Financial services | 2023 |
| Mansfords Property Solutions Ltd | Real estate | 2025 |
| Mansio Estates Limited | Real estate | 2018 |
| Mansio Suites Limited | Real estate | 2014 |
| Mansion Gate Investments Limited | Financial services | 2017 |
| Mansion House (Chapel Allerton) Management Company Limited | Households | 2019 |
| Mansion View Block Management Limited | Real estate | 2017 |
| Mansour Xpress Ltd | Transport & logistics | 2025 |
| Manstell Limited | Health & social care | 2018 |
| Mansum Consulting Ltd | Information & communication | 2017 |
| Mansys Backup Limited | Information & communication | 2011 |
| Mansys Holdings Limited | Financial services | 2018 |
| Mansys UK Limited | Information & communication | 2007 |
| Manta Systems UK Limited | Construction | 1987 |
| Manthon Solutions Limited | Administrative & support | 2023 |
| Manthorpe Building Products Holdings Limited | Professional & scientific | 2018 |
| Manthorpe Building Products Limited | Manufacturing | 1985 |
| Mantic Point Solutions Ltd | Professional & scientific | 2003 |
| Manto Films Ltd | Information & communication | 2009 |
| Manto Holdings Limited | Financial services | 2009 |
| Mantra Finance Limited | Information & communication | 2025 |
| Mantra W.G.T. Limited | Administrative & support | 1987 |
| Manuel Bravo Project | Professional & scientific | 2013 |
| Manvers Infrastructure Investments LP | | 2017 |
| Manville Limited | Financial services | 2021 |
| Many Hands Music Limited | Arts & recreation | 2024 |
| Many Moon Studio Ltd | Professional & scientific | 2021 |