| THE Mantle Group Ltd | Health & social care | 2025 |
| THE Mardy Barber Franchise Company Limited | Administrative & support | 2022 |
| THE Market Bar Group Limited | Hospitality | 2015 |
| THE Market Porter Derby Limited | Wholesale & retail | 2025 |
| THE Marketing Steer Ltd | Professional & scientific | 2023 |
| THE Marylebone Project | Other services | 2006 |
| THE Masons Bar and PUB Limited | Hospitality | 2024 |
| THE Masons Photography & Film Ltd | Administrative & support | 2013 |
| THE Massage Centre 2019 Ltd | Health & social care | 2019 |
| THE Massage Training Initiative Limited | Health & social care | 2009 |
| THE Masters House Limited | Real estate | 2014 |
| THE Matcha Spot Ltd | Hospitality | 2025 |
| THE Mawgage Broker Ltd | Financial services | 2023 |
| THE Meadowhall Education Centre | Education | 2002 |
| THE Measure UP Ltd | Professional & scientific | 2021 |
| THE Medicus Group Ltd | Manufacturing | 2021 |
| THE Mediterranean Restaurant Sharrow Limited | Hospitality | 2026 |
| THE Medjool Date Company Ltd | Agriculture & fishing | 2013 |
| THE Meeting Place Cafe Beighton Limited | Hospitality | 2026 |
| THE Meliors Group Ltd | Professional & scientific | 2024 |
| THE Mentalist Health Specialist Ltd | Health & social care | 2019 |
| THE Merchandise Co Direct Ltd | Wholesale & retail | 2025 |
| THE Mettle Way Limited | Arts & recreation | 2022 |
| THE Midlife Ladies Club Ltd | Wholesale & retail | 2025 |
| THE Milking Parlour Limited | Real estate | 2021 |
| THE Mill Hair Studio Limited | Other services | 2019 |
| THE Mill Nursery Limited | Real estate | 2014 |
| THE Milton House Partnership | | 1989 |
| THE Mindset Reset Retreats Ltd | Professional & scientific | 2025 |
| THE Miners Arms DW Ltd | Hospitality | 2025 |
| THE Ministry of Portholes CIC | Arts & recreation | 2021 |
| THE MIS EN Scene Company Ltd | Professional & scientific | 2020 |
| THE Mixing Factory Limited | Information & communication | 2012 |
| THE Mobile Tailor Ltd | Wholesale & retail | 2023 |
| THE Mobile Veterinary Company Limited | Professional & scientific | 2018 |
| THE Mobile Wood Fired Pizza Company Ltd | Hospitality | 2020 |
| THE Modern Professional Body Limited | Professional & scientific | 2020 |
| THE Modfin System Ltd | Information & communication | 2020 |
| THE Molly's Group Ltd | Hospitality | 2020 |
| THE Momentum Hub Ltd | Education | 2026 |
| THE Money MAP (Financial Navigation) LLP | | 2009 |
| THE Montgomery Theatre and Arts Centre Limited | Arts & recreation | 2012 |
| THE Morley Assets Ltd | Professional & scientific | 2015 |
| THE MOT Centre (S8) Ltd | Wholesale & retail | 2022 |
| THE Motorcycle Organisation Limited | Other services | 2020 |
| THE Motoring Organisation Limited | Other services | 2004 |
| THE Motoring Organisation Loans Limited | Professional & scientific | 2018 |
| THE Mouldings Marvels Ltd | Professional & scientific | 2026 |
| THE Mounts Partnership Limited | Wholesale & retail | 2007 |
| THE Mower Ltd | Hospitality | 2019 |
| THE Muddy Puddle Teacher Ltd | Education | 2019 |
| THE Mulberry Club Ltd | Hospitality | 2026 |
| THE Multi Metals Shop Ltd | Wholesale & retail | 2021 |
| THE Museum Platform Limited | Information & communication | 2020 |
| THE Nail Studio Collective Ltd | Other services | 2024 |
| THE National Contact Centre for Older People Ltd | Administrative & support | 2024 |
| THE National Metals Technology Centre Limited | Administrative & support | 2012 |
| THE National Photographic Ltd | Professional & scientific | 2021 |
| THE Natural Candle Company Ltd. | Extraterritorial | 2015 |
| THE Nature Box Foundation CIC | Education | 2024 |
| THE Nerf Guys Ltd | Arts & recreation | 2023 |
| THE Nest Childcare LLP | | 2014 |
| THE NET Effect (Worldwide) Limited | Information & communication | 1996 |
| THE New City Road Laundry Service Ltd | Administrative & support | 2017 |
| THE New Coach House Maintenance Company Limited | Real estate | 1994 |
| THE New Flying Horse WYE Ltd | Hospitality | 2025 |
| THE New KNG Retail Ltd | Wholesale & retail | 2025 |
| THE New Penny Limited | Administrative & support | 2004 |
| THE New Wedgwood Ltd | Hospitality | 2024 |
| THE New Whitehouse Surgery Limited | Real estate | 2008 |
| THE Next Level (Worksop) Limited | Arts & recreation | 2025 |
| THE Nichols Building Limited | Administrative & support | 2018 |
| THE Noble Art CIC | Education | 2026 |
| THE Nook Hair Ltd | Other services | 2021 |
| THE Nook Retreat Limited | Other services | 2024 |
| THE Noose and Gibbet Inn Limited | Hospitality | 2026 |
| THE Northern Impact Fund Delivery Company Limited | Financial services | 2016 |
| THE Northern Kiwi Group Limited | Hospitality | 2021 |
| THE NU Agency Limited | Professional & scientific | 2008 |
| THE Nude Look Ltd | Wholesale & retail | 2025 |
| THE Nurture Collective CIC | Health & social care | 2023 |
| THE Nurturing Edge Consultancy Ltd | Professional & scientific | 2026 |
| THE Oak (Swallownest) Limited | Extraterritorial | 2011 |
| THE Oak Huntly Ltd | Hospitality | 2015 |
| THE Oak Park Management Company Limited | Households | 1988 |
| THE Oaks (Morpeth) Management Company Limited | Real estate | 2025 |
| THE Oatpartment Ltd | Hospitality | 2025 |
| THE Official Music Box Company Limited | Administrative & support | 2013 |
| THE Ojari Tree Ltd | Arts & recreation | 2025 |
| THE Old BOY Barbers Ltd | Other services | 2026 |
| THE Old Bradfield Waterworks Ltd | Construction | 2013 |
| THE Old Garrison Ltd | Hospitality | 2026 |
| THE Old House Limited | Wholesale & retail | 2015 |
| THE Old PUB Group Ltd | Hospitality | 2022 |
| THE Old Vaults Limited | Hospitality | 2024 |
| THE Old Vicarage (Bolsterstone) Limited | Real estate | 2025 |
| THE Old Vicarage (Thorne) Ltd | Real estate | 2021 |
| THE Old Vicarage Authority Ltd | Real estate | 2020 |
| THE One Question Group Ltd. | Information & communication | 2016 |
| THE Opulence Code Ltd | Financial services | 2026 |