| Manage My Life Ltd | Information & communication | 2023 |
| Manage My Project Ltd | Information & communication | 2022 |
| Managed Healthcare Services Limited | Health & social care | 2015 |
| Management Project Solutions Ltd | Construction | 2010 |
| Management Service Centres Limited | Administrative & support | 2002 |
| Management Support Company Limited | Professional & scientific | 2015 |
| Managing Locally Limited | Real estate | 2000 |
| Manata Spice Ltd | Hospitality | 2026 |
| Manchester EAR Ltd | Health & social care | 2021 |
| Mandala Food Services Limited | Hospitality | 2025 |
| Mandall Fabrications Limited | Professional & scientific | 1975 |
| Mandashi Limited | Financial services | 2020 |
| Mandate Team Consult Ltd | Construction | 2025 |
| Mandega Limited | Hospitality | 2022 |
| Mandi House Limited | Hospitality | 2025 |
| Mandingaisa Ltd | Health & social care | 2020 |
| Mane Homes Limited | Construction | 2006 |
| Manfred's Cafe Bar Limited | Hospitality | 2026 |
| Mango Red Ltd | Professional & scientific | 2025 |
| Mango Studios Limited | Information & communication | 2023 |
| Manhash Technologies Ltd | Information & communication | 2023 |
| Manhattan Motorcycles Ltd | Wholesale & retail | 2013 |
| Manick Limited | Real estate | 2010 |
| Manifax Engineering Limited | Financial services | 1987 |
| Manisa Minimarket Limited | Wholesale & retail | 2025 |
| Manishsingh Limited | Health & social care | 2024 |
| Mani’S UFC Limited | Hospitality | 2025 |
| Mankan -Go Care Ltd | Health & social care | 2019 |
| Mankena IT Solution Ltd | Information & communication | 2026 |
| Mann Pasand Sweets & Bakers Ltd | Hospitality | 2025 |
| Mann Ventures Limited | Information & communication | 2023 |
| Manna Productions Limited | Arts & recreation | 2000 |
| Manning Management Limited | Professional & scientific | 2024 |
| Mannoush Sweets Ltd | Wholesale & retail | 2023 |
| Mannys Fresh Ltd | Hospitality | 2022 |
| Manoch the Bears Ltd | Hospitality | 2025 |
| Manolya Properties Ltd | Real estate | 2025 |
| Manor and Castle Development Trust Limited | Real estate | 1997 |
| Manor Boxing Academy CIC | Arts & recreation | 2026 |
| Manor Castle Ltd | Hospitality | 2018 |
| Manor Community Pharmacy Limited | Wholesale & retail | 2003 |
| Manor Development Company Limited | Administrative & support | 1992 |
| Manor House (Thrybergh) Management Limited | Households | 2018 |
| Manor House Management Company (Yorkshire) Limited | Households | 2008 |
| Manor House Nurseries Ltd | Health & social care | 2005 |
| Manor Oaks Roofing Ltd | Construction | 2019 |
| Manor Park Fisheries Ltd | Hospitality | 2011 |
| Manor Press Limited | Manufacturing | 2003 |
| Manor Ridge Property Investments Ltd | Real estate | 2022 |
| Manor Top Grocery Store Limited | Wholesale & retail | 2025 |
| Manor Welding Technology Ltd | Professional & scientific | 2015 |
| Manor-Realm Limited | Hospitality | 1984 |
| Manorcity Ltd | Hospitality | 2026 |
| Manos Bakery Limited | Manufacturing | 2026 |
| Manse Farm Mews Management Limited | Households | 2012 |
| Mansfield Property Investment Ltd | Real estate | 2024 |
| Mansfield Road Store Limited | Wholesale & retail | 2025 |
| Manta RAY Medical Ltd | Health & social care | 2025 |
| Mantle (UK) Ltd | Professional & scientific | 2005 |
| Mantleco Ltd | Professional & scientific | 2020 |
| Mantra Media Ltd | Administrative & support | 2015 |
| Mantra Recruitment Group Ltd | Administrative & support | 2021 |
| Mantra Systems Limited | Professional & scientific | 2019 |
| Manu Integrity Services Ltd | Health & social care | 2013 |
| Manufacturing Made Easy Ltd | Manufacturing | 2022 |
| Manufacturing Software Solutions Ltd | Professional & scientific | 2018 |
| Manushi Records Limited | Arts & recreation | 2007 |
| Manvers Developments Ltd | Construction | 2021 |
| Manwithvanremovals Ltd | Transport & logistics | 2022 |
| Many Thanks Limited | Administrative & support | 2021 |
| Manzeal Limited | Real estate | 2025 |
| Manzo Steakeria Limited | Hospitality | 2022 |
| MAP Drainage & Pest Services Limited | Wholesale & retail | 2007 |
| Mapcomcommercial Ltd | Construction | 2025 |
| Mapk Solutions Ltd | Information & communication | 2025 |
| Maplac Asset Management Limited | Real estate | 2025 |
| Maple Corner Consulting Ltd | Professional & scientific | 2023 |
| Maple Fire Consultants Ltd | Professional & scientific | 2023 |
| Maple Leaf Business Consulting Ltd | Professional & scientific | 2023 |
| Maple Leaf Nursery Limited | Education | 2022 |
| Maple Online Education Limited | Education | 2022 |
| Maple View Realty Ltd | Real estate | 2025 |
| Mapleland Resident Association Limited | Real estate | 1982 |
| Mapyourworld.Com Limited | Administrative & support | 2020 |
| MAR Kebab Ltd | Hospitality | 2019 |
| MAR Propco Holdco Limited | Real estate | 2007 |
| MAR Propco Limited | Manufacturing | 2022 |
| Marakie Skin Care Limited | Wholesale & retail | 2026 |
| Maranellos Ltd | Hospitality | 2017 |
| Marantos Crookes Ltd | Hospitality | 2019 |
| Marasi Cafe Ltd | Hospitality | 2025 |
| Maratt Group Ltd | Administrative & support | 2022 |
| Marbank Construction Limited | Construction | 1994 |
| Marbeck Associates Limited | Financial services | 2016 |
| Marble Leisure Group Ltd | Hospitality | 2026 |
| Marblemarks Property Limited | Real estate | 2019 |
| Marboot Centregate 2 Limited | Real estate | 2016 |
| Marboot Centregate Ltd | Real estate | 2015 |
| Marc Richardson Building Services Limited | Construction | 2005 |
| Marc.A.Williams Ltd | Construction | 2017 |