| MSM Builders Ltd | Construction | 2026 |
| MSP (NW) Limited | Wholesale & retail | 2017 |
| MT Travel Ltd | Transport & logistics | 2023 |
| Mtag Properties Limited | Real estate | 2015 |
| Mtfs Fleet Services Ltd | Wholesale & retail | 2022 |
| Mtie Ltd | Wholesale & retail | 2020 |
| Mtnissar Limited | Health & social care | 2021 |
| MTS Cryo Stores UK Limited | Professional & scientific | 2003 |
| Mtscc Limited | Extraterritorial | 2020 |
| MTT Rochdale Ltd | Wholesale & retail | 2020 |
| MU Business Intelligence Ltd | Information & communication | 2022 |
| MU Estates Ltd | Real estate | 2026 |
| Muaj Limited | Wholesale & retail | 2023 |
| Mubeen Javaid Associates Ltd | Professional & scientific | 2026 |
| Mudassar Store Ltd | Wholesale & retail | 2023 |
| MUF& Co Ltd | Professional & scientific | 2023 |
| MUG ME OFF Ltd | Wholesale & retail | 2025 |
| Mughal Constructions (AK) Ltd | Construction | 2021 |
| Mughal Property Ltd | Real estate | 2025 |
| Muhammad ALI Boxing Promotions Limited | Professional & scientific | 2018 |
| Muhammad ARSLAN786 Ltd | Wholesale & retail | 2023 |
| Muhammad Hkhan Ltd | Wholesale & retail | 2025 |
| Muhammad Imran Ecom UK Ltd | Wholesale & retail | 2026 |
| Muhammadismailanjumumar Ltd | Wholesale & retail | 2025 |
| Muhammed Rafiq Limited | Health & social care | 2007 |
| MUK Dent Ltd | Health & social care | 2021 |
| MUK PF Holdings Ltd | Financial services | 2024 |
| Mukhtar Consultancy Ltd | Professional & scientific | 2026 |
| Multan Limited | Real estate | 2020 |
| Multazim ZIA Limited | Real estate | 2025 |
| Multi Kitchens Limited | Construction | 2018 |
| Mum's Kitchen Café Ltd | Hospitality | 2025 |
| Mumloo Medical Services Limited | Health & social care | 2010 |
| Mumta Holdings Ltd | Financial services | 2025 |
| MUN Medical Services Ltd | Health & social care | 2025 |
| Munchies Foods Limited | Manufacturing | 2024 |
| Munin Productions Limited | Information & communication | 2003 |
| Murco Supplies Ltd | Wholesale & retail | 2026 |
| Murphys (NW) Ltd | Manufacturing | 2014 |
| Murphys (NW) Transport Limited | Wholesale & retail | 2019 |
| Murray & Murray Hair Ltd | Other services | 2019 |
| Murray Barnard Limited | Information & communication | 2011 |
| Musa Real Estate Ltd | Real estate | 2024 |
| Musab Ltd | Other services | 2021 |
| Muscle Warehouse Ltd | Wholesale & retail | 2025 |
| Mushroomtree Ltd | Wholesale & retail | 2020 |
| Mustafa Rehman Ltd | Wholesale & retail | 2022 |
| Mutucare Limited | Health & social care | 2020 |
| Muvo Lettings Ltd | Real estate | 2024 |
| MUZ Investment Ltd | Transport & logistics | 2019 |
| Muzan Aviation Limited | Wholesale & retail | 2025 |
| Muzela Ltd | Wholesale & retail | 2026 |
| MV Traders Ltd | Wholesale & retail | 2025 |
| MVW Associates Limited | Professional & scientific | 2025 |
| MW Energy Consultancy Ltd | Professional & scientific | 2024 |
| MW Roofing Limited | Construction | 2012 |
| Mwjr Investments Ltd | Real estate | 2024 |
| MWM Eyecare Ltd | Professional & scientific | 2024 |
| My Animal Trace Ltd | Agriculture & fishing | 2021 |
| My BIO MED Ltd | Health & social care | 2025 |
| My Blue Jade Ltd | Wholesale & retail | 2023 |
| My Consultancy Group Limited | Wholesale & retail | 2017 |
| My EYE Brows Limited | Other services | 2015 |
| My Future-Vision Ltd | Real estate | 2018 |
| My Home and Living Ltd | Wholesale & retail | 2025 |
| My Immigration Services Limited | Professional & scientific | 2021 |
| My Motivation Matters CIC | Education | 2021 |
| My Perii Chicken Ltd | Hospitality | 2021 |
| My Personal Training TLD Ltd | Arts & recreation | 2025 |
| My Tenants Choice Limited | Real estate | 2021 |
| My-Hive Ltd | Information & communication | 2020 |
| MYA Pharma Limited | Health & social care | 2022 |
| MYA Travels Ltd | Transport & logistics | 2026 |
| Myby Ltd | Wholesale & retail | 2015 |
| Myguysplace Ltd | Hospitality | 2025 |
| Mylegalexpert(Nw) Limited | Professional & scientific | 2015 |
| Mylittlemuffinz Ltd | Hospitality | 2024 |
| Mymce Ltd | Construction | 2024 |
| Myntivo Ltd | Wholesale & retail | 2025 |
| Myson Consulting Limited | Information & communication | 1999 |
| Mythiq Ltd | Professional & scientific | 2025 |
| Myxotica Restaurant Limited | Hospitality | 2025 |
| MZ Trader Ltd | Wholesale & retail | 2019 |
| MZ Trading (M/Cr) Limited | Real estate | 2013 |
| Mzaa 917 Ltd | Hospitality | 2020 |
| MZH Ltd | Wholesale & retail | 2024 |
| Mzori 19 Ltd | Other services | 2024 |
| Mzori Barbers Ltd | Other services | 2024 |
| MZR Property Ltd | Real estate | 2024 |
| N & J Chowdhary Properties Limited | Real estate | 2004 |
| N & J Contractors Limited | Arts & recreation | 2014 |
| N a Q Services Limited | Transport & logistics | 2021 |
| N Adam Appliances Limited | Wholesale & retail | 2025 |
| N ALI Halal Meat Limited | Wholesale & retail | 2021 |
| N H F Cleaning Services Limited | Other services | 2006 |
| N K Law Solicitors Limited | Professional & scientific | 2017 |
| N L Electrical Contractors Ltd | Construction | 2026 |
| N P Tools Limited | Wholesale & retail | 2026 |
| N R Trading MCR Limited | Wholesale & retail | 2024 |
| N W Valeting Ltd | Wholesale & retail | 2025 |