| Mred Solutions Ltd | Construction | 2026 |
| MRN Services Ltd | Transport & logistics | 2022 |
| MRR Courier Service Ltd | Transport & logistics | 2024 |
| MS 24/7 Logistics Ltd | Transport & logistics | 2021 |
| MS Logistics Services Ltd | Transport & logistics | 2026 |
| MS MOT Centre Ltd | Wholesale & retail | 2020 |
| MS Sky Construction Limited | Construction | 2023 |
| MSB Accountancy Limited | Professional & scientific | 2020 |
| MSB Builders Limited | Construction | 2021 |
| MSG Couriers Ltd | Transport & logistics | 2017 |
| MSG2 Builders Ltd | Construction | 2025 |
| MSH (B'Ham) Ltd | Transport & logistics | 2019 |
| MSL Foodgroup Ltd | Administrative & support | 2020 |
| MSP (Midlands) Ltd | Construction | 2022 |
| MT Bar & Grill Ltd | Hospitality | 2025 |
| MTB Properties Group Ltd | Real estate | 2025 |
| MTM Spec Ltd | Wholesale & retail | 2017 |
| Mudyawabikwa Global Investments Limited | Professional & scientific | 2021 |
| Multea Choice West Bromwich Ltd | Wholesale & retail | 2022 |
| Multistory | Arts & recreation | 2006 |
| Mummy's Food Limited | Hospitality | 2014 |
| Munchies Sandwiches Ltd | Manufacturing | 2012 |
| Muqaddar Traders Ltd | Wholesale & retail | 2025 |
| MV9 Limited | Other services | 2024 |
| My Autism Community CIC | Education | 2025 |
| My Cloud Kitchen Limited | Hospitality | 2025 |
| My Phone World Ltd | Wholesale & retail | 2022 |
| My World Estates UK Ltd | Real estate | 2021 |
| My World Property Investment Limited | Real estate | 2020 |
| My World UK Consultancy Limited | Real estate | 2013 |
| MY.1STOPSHOP Ltd | Wholesale & retail | 2017 |
| Myatt Aesthetics Ltd | Other services | 2024 |
| MZ Optical Services Limited | Health & social care | 2013 |
| N and S Holdings WB Limited | Financial services | 2025 |
| N D Momo Limited | Hospitality | 2025 |
| N Food Limited | Hospitality | 2021 |
| N Malik Property Investments Ltd | Real estate | 2026 |
| N&B Global Limited | Wholesale & retail | 2025 |
| N.A Electrical Ltd | Construction | 2025 |
| N.BECKETTCONSULTATION2 Ltd | Health & social care | 2025 |
| Nabh Kamwal Limited | Real estate | 2025 |
| Nadine Williams PA Services Limited | Administrative & support | 2021 |
| Nadoutlook Limited | Transport & logistics | 2025 |
| Nadya ALI Limited | Other services | 2022 |
| Naeem Properties Ltd | Real estate | 2017 |
| Nagoke Transport Ltd | Transport & logistics | 2025 |
| Nagra Glazing Ltd | Construction | 2024 |
| Nahal Investment Properties Ltd | Real estate | 2024 |
| Nahal Transports Ltd | Transport & logistics | 2019 |
| Nail Island Ltd | Wholesale & retail | 2018 |
| Najra Investments Limited | Real estate | 2022 |
| NAL Logistics Ltd | Transport & logistics | 2021 |
| Nanda Global Empire Ltd | Manufacturing | 2026 |
| Nandha Construction A1 Ltd | Construction | 2024 |
| Nankang Tyre UK Limited | Extraterritorial | 2013 |
| NAR Enterprise Limited | Financial services | 2025 |
| NAR Holdings Ltd | Wholesale & retail | 2022 |
| NAR Importers Limited | Wholesale & retail | 2022 |
| NAR International Holdings Limited | Households | 2022 |
| NAR Timber Group Ltd | Wholesale & retail | 2020 |
| National Pallet Solution Ltd | Manufacturing | 2025 |
| National Pallets Ltd | Manufacturing | 2026 |
| National Repair Network Ltd | Wholesale & retail | 2024 |
| National Tech Solutions Ltd | Transport & logistics | 2024 |
| Nationwide Car & Commercial Limited | Wholesale & retail | 2011 |
| Nationwide Prime Properties Ltd | Administrative & support | 2025 |
| Nationwide Secure Safe Ltd | Administrative & support | 2025 |
| NATURAL4YOU Ltd | Wholesale & retail | 2019 |
| NAV Home Improvement Ltd | Construction | 2026 |
| NAV Property Services Limited | Construction | 2011 |
| NAV Services Private Ltd | Transport & logistics | 2023 |
| Navach Management Limited | Administrative & support | 2021 |
| Navpriya Foods Ltd | Hospitality | 2023 |
| Navpriya Investment Properties Ltd | Real estate | 2023 |
| Nayaab Construction Ltd | Construction | 2024 |
| Nayyer Investment Group Ltd | Real estate | 2024 |
| Nchito Limited | Information & communication | 2025 |
| Neat Services and Stuff Ltd | Construction | 2024 |
| Neely Maxx Ltd | Construction | 2021 |
| Neely There Ltd | Information & communication | 2018 |
| Neet Hary Limited | Wholesale & retail | 2026 |
| NEO Doors Midlands Ltd | Construction | 2025 |
| NEO Granite Holdings Limited | Financial services | 2020 |
| NEO Granite Ltd | Wholesale & retail | 2011 |
| Nest Housing One Assocciation Limited Limited | Hospitality | 2012 |
| Nester Healthcare Group Ltd | Health & social care | 2022 |
| Neter Ru's Inspires Collections Ltd | Manufacturing | 2024 |
| New Bell Kitchen Ltd | Hospitality | 2022 |
| New Choice Bifolding Doors Ltd | Manufacturing | 2022 |
| New Choice Carpet & Flooring Limited | Construction | 2024 |
| New Creation Construction Ltd | Construction | 2026 |
| New Harmony Designs Limited | Manufacturing | 2018 |
| New HC Ltd | Health & social care | 2023 |
| New Image Carpentry Limited | Manufacturing | 2021 |
| New Island Inn Ltd | Hospitality | 2010 |
| New M K News Limited | Wholesale & retail | 2018 |
| New Solutions Cleaning Services Ltd | Administrative & support | 2022 |
| New York Barbershop Ltd | Other services | 2024 |
| Newey's Holdings Ltd | Financial services | 2025 |
| Neweys Deals Limited | Wholesale & retail | 2025 |