| Mahi Construction Build and Design Ltd | Construction | 2022 |
| Mahi Hair & Beauty Limited | Other services | 2015 |
| Mahi's Fashion Limited | Wholesale & retail | 2016 |
| Mahir Carpet Limited | Wholesale & retail | 2022 |
| Maicha Properties Limited | Real estate | 2016 |
| Maila Ltd | Wholesale & retail | 2023 |
| Mainfly Limited | Wholesale & retail | 2023 |
| Mainpine Limited | Transport & logistics | 2024 |
| Maira Enterprise Limited | Wholesale & retail | 2015 |
| Maira Jewellers Limited | Wholesale & retail | 2024 |
| Mairaj Traders Ltd | Wholesale & retail | 2025 |
| Maisie Care Ltd | Extraterritorial | 2022 |
| Maison Ephraim Ltd | Real estate | 2025 |
| Maison Victor Group Ltd | Wholesale & retail | 2020 |
| Maison Victor London Limited | Other services | 2026 |
| Maison Victor Ltd | Construction | 2021 |
| Maison Wick Limited | Manufacturing | 2025 |
| Maisuria Limited | Real estate | 2023 |
| Majestic Premiere Kingdom Properties Ltd | Households | 2024 |
| Major Asset Management Ltd | Professional & scientific | 2024 |
| Major Motor Market Limited | Wholesale & retail | 2025 |
| Major Solutions Group Limited | Wholesale & retail | 2026 |
| MAK Electrical (London) Ltd | Construction | 2016 |
| Makeda Limited | Other services | 1997 |
| Makeitlovely Hair & Beauty Ltd | Other services | 2019 |
| Makeup by Tammi Ltd | Information & communication | 2020 |
| Maks Store Ltd | Wholesale & retail | 2025 |
| Makwana Limited | Professional & scientific | 2019 |
| Mala Traders Limited | Wholesale & retail | 2022 |
| Maladh Holistic Services Ltd | Health & social care | 2024 |
| Malax Construction Ltd | Construction | 2024 |
| Malhi and Chatha Farms Ltd | Administrative & support | 2017 |
| Malhi INT. Limited | Transport & logistics | 2017 |
| Malhi Investment Holding Ltd | Real estate | 2022 |
| Malhi Jatt Limited | Transport & logistics | 2025 |
| Malhi Recovery Ltd | Transport & logistics | 2025 |
| Malhotra Brothers Realty Ltd | Real estate | 2023 |
| Malhotra Residentials Ltd | Real estate | 2019 |
| Malhotra Superstore Limited | Wholesale & retail | 2013 |
| Malhotra Villa Ltd | Real estate | 2025 |
| Maliha Coffee & Desserts Ltd | Wholesale & retail | 2025 |
| Malik Inc Ltd | Transport & logistics | 2020 |
| Maliq&Co Ltd | Wholesale & retail | 2025 |
| Malkadov Limited | Real estate | 2025 |
| Malkeet Construction Services Ltd | Construction | 2020 |
| Mallha Transport Limited | Transport & logistics | 2016 |
| MAM Buildcare Limited | Construction | 2025 |
| Mama Trade Ltd | Wholesale & retail | 2025 |
| Managed Stays Group Ltd | Hospitality | 2025 |
| Managing 4U Ltd | Real estate | 2015 |
| Mand Construction Ltd | Construction | 2025 |
| Mandal Corporation Limited | Information & communication | 2016 |
| Mandar Enterprise Ltd | Wholesale & retail | 2018 |
| Mandy Super Stores Ltd | Wholesale & retail | 2025 |
| Mandy Tattoos Ltd | Arts & recreation | 2026 |
| Mangajee Limited | Construction | 2017 |
| Mangal Singh Ltd | Construction | 2025 |
| Mangat Constructions Ltd | Construction | 2017 |
| Mani Builders Ltd | Construction | 2023 |
| Mani Food Limited | Hospitality | 2026 |
| Maninder Ltd | Wholesale & retail | 2026 |
| Manish Nirwan Ltd | Construction | 2025 |
| Manjania & Co Ltd | Wholesale & retail | 2023 |
| Manjeet K Singh Investments Ltd | Real estate | 2026 |
| Manjot Enterprises Limited | Wholesale & retail | 2016 |
| Mankoo Contractors Limited | Construction | 2021 |
| Manleen Properties Limited | Real estate | 2021 |
| Mann Food & Wine Southall Ltd | Wholesale & retail | 2019 |
| Mann Investment Holdings Limited | Real estate | 2023 |
| Mann Realty Holdings Ltd | Real estate | 2024 |
| Mann Travel Ltd | Administrative & support | 2014 |
| Manna Taste Ltd | Hospitality | 2025 |
| Mannah Steel Work Ltd | Construction | 2020 |
| Mannat Design & Build Ltd | Construction | 2026 |
| Mannat Trading Limited | Wholesale & retail | 2022 |
| Manni Properties Limited | Real estate | 2020 |
| Manni Trading Limited | Wholesale & retail | 2016 |
| Manny Safari Limited | Arts & recreation | 2025 |
| Mann’S Construction Ltd | Construction | 2024 |
| Manor Telecom Services Ltd | Wholesale & retail | 2011 |
| Manraj Property Ltd | Real estate | 2026 |
| Mansion Real Estate Ltd | Real estate | 2024 |
| MAP Global Ventures Limited | Wholesale & retail | 2024 |
| Mapp Property Limited | Real estate | 2026 |
| Maps Development Ltd | Construction | 2020 |
| Maria Media Ltd | Wholesale & retail | 2021 |
| Marina Collection Limited | Wholesale & retail | 2006 |
| Maritime Seafood UK Ltd | Wholesale & retail | 2026 |
| Mark One Travel Holdings Ltd | Financial services | 2010 |
| Mark One Travel Ltd. | Administrative & support | 1990 |
| Marketingdonebetter Ltd | Professional & scientific | 2026 |
| Marktrucks Limited | Transport & logistics | 2009 |
| Maroc VEG Limited | Wholesale & retail | 1992 |
| Marqit Ltd | Professional & scientific | 2026 |
| Marquee Co London Ltd | Administrative & support | 2024 |
| Marshal Autos Ltd | Wholesale & retail | 2024 |
| Martin West Creations Ltd | Manufacturing | 2021 |
| Marwah Food & Wine Limited | Wholesale & retail | 2025 |
| Marwaha Properties Group Ltd | Real estate | 2020 |
| Mary BRO Foundation | Information & communication | 2013 |