| Murita Limited | Wholesale & retail | 2020 |
| Murphy Method Limited | Education | 2024 |
| Murree Chauffeur Services Ltd | Transport & logistics | 2022 |
| Murree Enterprises Ltd | Construction | 2024 |
| Murtaza Car Hire Limited | Other services | 2023 |
| Murugan Idli Ltd | Hospitality | 2025 |
| Murugan Ltd | Hospitality | 2019 |
| Musawy Properties Limited | Real estate | 2018 |
| Muscle & Active Company Limited | Hospitality | 2024 |
| Museliire Services Ltd | Administrative & support | 2018 |
| Mushin House Ltd | Information & communication | 2024 |
| Mushrif OIL Services Limited | Professional & scientific | 2006 |
| Mushtaq Rehman Ltd | Professional & scientific | 2023 |
| Musical Mayhem London CIC | Health & social care | 2024 |
| Musically Obsessed Baby Ltd | Manufacturing | 2018 |
| Musicfortheeyes Ltd | Information & communication | 2012 |
| Musik Rooms Ltd | Information & communication | 2024 |
| Musikk Limited | Arts & recreation | 2025 |
| Muskaan Hair, Nails & Beauty (Wembley) Limited | Other services | 2018 |
| Muslim Children's Books Limited | Other services | 2016 |
| Muslim Women Alliance Ltd | Information & communication | 2025 |
| Mustache Ltd | Other services | 2017 |
| Mustang Grill & Chill Ltd | Hospitality | 2025 |
| MV Cooling & Heating Ltd | Construction | 2022 |
| MVP Construction Ltd | Construction | 2021 |
| MVP Films Limited | Information & communication | 2008 |
| MVP Products Limited | Wholesale & retail | 2024 |
| MVP Property Management Limited | Real estate | 2021 |
| MVP Strategy Limited | Other services | 2019 |
| MVS Imports Ltd | Manufacturing | 2006 |
| My Book Bandits Ltd | Wholesale & retail | 2026 |
| My Chai Protien Limited | Wholesale & retail | 2026 |
| My City Cleaning Ltd | Administrative & support | 2025 |
| My Cosmetic Centre Cardiff Limited | Health & social care | 2021 |
| My Cosmetic Centre Glasgow Limited | Health & social care | 2021 |
| My Cosmetic Group Limited | Health & social care | 2025 |
| My Cosmetic Pharma Limited | Health & social care | 2025 |
| My Digital Shelf Ltd | Administrative & support | 2015 |
| My HMP Nest Ltd | Real estate | 2020 |
| My Holiday Gate Ltd | Professional & scientific | 2015 |
| My Indian Party Limited | Wholesale & retail | 2020 |
| My Partywall Agreement Limited | Professional & scientific | 2023 |
| My Plumbing Group Limited | Construction | 2019 |
| My Property Holdings Limited | Real estate | 2026 |
| My Surgeries Ltd | Administrative & support | 2024 |
| My Time to Heal Limited | Health & social care | 2018 |
| My Zone Ltd | Professional & scientific | 2022 |
| Mycctv Limited | Administrative & support | 2021 |
| Mydirac Limited | Wholesale & retail | 2025 |
| Mydwellingsuvey Ltd | Professional & scientific | 2024 |
| Myhealth Pharmacy Ltd | Wholesale & retail | 2020 |
| MYHOME1ST Ltd | Professional & scientific | 2021 |
| MYJ Properties Ltd | Real estate | 2025 |
| Mymcars Ltd | Transport & logistics | 2025 |
| Mymetabology Ltd | Health & social care | 2023 |
| Mynon Limited | Information & communication | 2016 |
| Myselekta Limited | Information & communication | 2018 |
| Mystylondon Ltd | Real estate | 2024 |
| Mytractor Ltd | Extraterritorial | 2026 |
| Myxboard Ltd | Information & communication | 2017 |
| MZ Consultant Properties Limited | Real estate | 2022 |
| Mzmm Properties Ltd | Real estate | 2019 |
| MZW Global Ltd | Other services | 2026 |
| N & K Security Group Ltd | Administrative & support | 2026 |
| N F Heating and Plumbing Ltd | Construction | 2025 |
| N G Makesh Property Limited | Real estate | 2019 |
| N M R Event Managing Ltd | Hospitality | 2019 |
| N N Patel & Company Limited | Professional & scientific | 2025 |
| N&L Investment Limited | Real estate | 2018 |
| N&V.Vala Limited | Wholesale & retail | 2026 |
| N. G. Makesh Jewellery Ltd | Wholesale & retail | 2022 |
| N1 Homes Ltd | Real estate | 2022 |
| N44 Ltd | Wholesale & retail | 2026 |
| Naame Namakku CIC | Agriculture & fishing | 2022 |
| Nabhas Holdings Limited | Professional & scientific | 2013 |
| Nabhas Properties Limited | Real estate | 2013 |
| NAD (UK) Limited | Arts & recreation | 2004 |
| NAD Joinery Ltd. | Construction | 2019 |
| Nadish Ltd | Wholesale & retail | 2022 |
| Nadwas Foods Limited | Wholesale & retail | 2022 |
| Nadwas Group Limited | Wholesale & retail | 2020 |
| Naeson Ltd | Hospitality | 2013 |
| Nagina Sharif Limited | Real estate | 2019 |
| Naik Business Solutions Limited | Health & social care | 2023 |
| Naik Health Services Limited | Health & social care | 2025 |
| Naik Realty Limited | Real estate | 2023 |
| Naik&Naik Traders Ltd | Wholesale & retail | 2026 |
| Nail Perfection by Gabi Ltd | Other services | 2025 |
| Nailcare ( Kentish Town) Ltd | Other services | 2026 |
| Naina International Ltd | Other services | 1997 |
| NAJ12 Ltd | Education | 2023 |
| Najas Investments Limited | Real estate | 2019 |
| Naked Beauty Glow Ltd | Other services | 2026 |
| Nakeddrinks Limited | Manufacturing | 2026 |
| Nakheel Foundation | Water & waste | 2022 |
| Nakrani Group UK Ltd | Administrative & support | 2024 |
| NAM Global Ltd | Transport & logistics | 2016 |
| Namma Veedu Vasanta Bhavan Ltd | Hospitality | 2018 |
| Nanabaf Limited | Health & social care | 2013 |
| Nanchouk Limited | Wholesale & retail | 2024 |