| Malasthenics Ltd | Wholesale & retail | 2024 |
| Malbar Development Limited | Construction | 2025 |
| Malcolm Arnold Festival | Arts & recreation | 2009 |
| Malcolmsons Property Ltd | Real estate | 2024 |
| Malea Commercial Consultants Limited | Professional & scientific | 2022 |
| Maleahi 45 Limited | Transport & logistics | 2019 |
| Malem Medical Limited | Wholesale & retail | 1983 |
| Malfesi Properties Limited | Real estate | 2021 |
| Malfords Limited | Administrative & support | 2008 |
| Malg Solutions Ltd | Information & communication | 2019 |
| Malghalary Consulting Ltd | Education | 2023 |
| Mali Limited | Administrative & support | 2012 |
| Malie Studios Limited | Wholesale & retail | 2025 |
| Malijo Trading Ltd | Wholesale & retail | 2024 |
| Malik & Sons PVT Limited | Construction | 2012 |
| Malik Construction Limited | Construction | 2022 |
| Malik Property Services Limited | Real estate | 2025 |
| Maliks Trading Co Limited | Wholesale & retail | 2016 |
| Malin Lindholm Design Ltd | Professional & scientific | 2016 |
| Mallacco Designs Limited | Manufacturing | 2025 |
| Mallhome Property Management Limited | Professional & scientific | 1989 |
| Mallus in UK Ltd | Wholesale & retail | 2025 |
| Malmic Lace Limited | Manufacturing | 1964 |
| Malone Associates Limited | Administrative & support | 2013 |
| Maloney & Ellis Ltd | Construction | 2025 |
| Malt Cross Trust Company | Administrative & support | 1996 |
| Malt Mill Motors (Plumtree) Limited | Wholesale & retail | 2020 |
| Malt Mill Motors Limited | Wholesale & retail | 2016 |
| Malt Mill Properties Limited | Real estate | 2023 |
| Maltby Homes Limited | Construction | 2016 |
| Malti Marketing Ltd | Wholesale & retail | 2024 |
| Malton Financial Services Ltd | Professional & scientific | 2022 |
| Malton West Consultants Ltd | Administrative & support | 2023 |
| Malty Cross Ltd | Hospitality | 2018 |
| Malvinderakal Systems Limited | Information & communication | 1998 |
| Mama B'S Natural Juices Limited | Manufacturing | 2026 |
| Mama's Catering Ltd | Hospitality | 2025 |
| Mamas and Dadas Ltd | Wholesale & retail | 2025 |
| Mamas Food Express Ltd | Hospitality | 2019 |
| Mamma Donnie's Ditty Box Limited | Wholesale & retail | 2015 |
| Mamoo Digital Limited | Information & communication | 2014 |
| Mamu & Sons Limited | Transport & logistics | 2019 |
| Mamuska the Cheesecake Shop (U.K.) Limited | Wholesale & retail | 1996 |
| MAN Bidco Limited | Financial services | 2019 |
| MAN Topco Limited | Financial services | 2019 |
| MAN VS MAN Barbers Ltd | Other services | 2019 |
| Man-With-A-Van.Co.Uk Europe Ltd | Professional & scientific | 2009 |
| Manabush Limited | Wholesale & retail | 2014 |
| Manafab Limited | Administrative & support | 2024 |
| Managed Identities Limited | Information & communication | 2019 |
| Management Services (Midlands) Limited | Professional & scientific | 2009 |
| Management Solutions (Care Services) Ltd | Professional & scientific | 2021 |
| Management Time Ltd | Professional & scientific | 2025 |
| Manager KAY Limited | Financial services | 2022 |
| Managy Ltd | Information & communication | 2019 |
| Manahil Medical Ltd | Health & social care | 2016 |
| Manals Events and Hospitality Ltd | Hospitality | 2026 |
| Manasoko Consulting Limited | Professional & scientific | 2025 |
| Manchtrading Ltd | Wholesale & retail | 2025 |
| Mancini Ices Limited | Wholesale & retail | 1996 |
| Manckas Community Interest Company | Education | 2025 |
| Manckas of Nottingham Limited | Wholesale & retail | 2021 |
| Mancy Properties Limited | Real estate | 2022 |
| Mand Services Ltd | Construction | 2022 |
| Mandalay Street 1961 Limited | Extraterritorial | 2014 |
| Mandarin Creative Solutions Limited | Professional & scientific | 2004 |
| Manders Fencing & Garden Services Ltd | Administrative & support | 2026 |
| Mandi Healthcare Limited | Health & social care | 2014 |
| Mandiesimon Ltd | Hospitality | 2015 |
| Mandla Limited | Health & social care | 2017 |
| Mando Productions Ltd | Arts & recreation | 2025 |
| Mandy's Munchies Ltd | Hospitality | 2015 |
| Manesh and SON Ltd | Real estate | 2017 |
| Manfolk Limited | Other services | 2024 |
| Manfromsoul Vinyl Records LLP | | 2008 |
| Mangmentbyrm Ltd | Wholesale & retail | 2023 |
| Mangospice Communications Limited | Professional & scientific | 2015 |
| MANHATTAN34 Limited | Hospitality | 2011 |
| Mani Cars Ltd | Wholesale & retail | 2007 |
| Manikanoba Properties Limited | Real estate | 2018 |
| Manisha Retailing Ltd | Wholesale & retail | 2012 |
| Manju Fast Food Ltd | Hospitality | 2026 |
| Mankam Investments Limited | Real estate | 2025 |
| Manners Properties Limited | Real estate | 2011 |
| Mannex Limited | Health & social care | 2023 |
| Manor Car Leasing Ltd | Administrative & support | 2020 |
| Manor Cars of NG9 Ltd | Transport & logistics | 2023 |
| Manor Carwash Stapleford Ltd | Other services | 2025 |
| Manor Court Stores Ltd | Wholesale & retail | 2022 |
| Manor Equestrian Limited | Wholesale & retail | 2017 |
| Manor Farm (Kingston Upon Soar) Management Company Limited | Households | 2004 |
| Manor Farm Contractors Ltd | Information & communication | 2012 |
| Manor Farm Dairy Products Ltd | Agriculture & fishing | 2014 |
| Manor Farm Swepstone Limited | Real estate | 1976 |
| Manor Gymnastics Academy Limited | Arts & recreation | 2016 |
| Manor Holdings (East Midlands) Limited | Real estate | 2019 |
| Manor House Real Estate Notts Limited | Real estate | 2022 |
| Manor Lift Installations Limited | Manufacturing | 2003 |
| Manor Loft Specialists Limited | Construction | 2017 |
| Manor Marquees Ltd | Administrative & support | 2024 |