| Mqua Limited | Professional & scientific | 2013 |
| MQW Services Ltd | Professional & scientific | 2018 |
| MR & MRS B'S Boutique Limited | Other services | 2016 |
| MR Bagz Limited | Financial services | 2020 |
| MR Beansmith Limited | Real estate | 2021 |
| MR Biscuit (NW) Limited | Wholesale & retail | 2022 |
| MR Blue LS Ltd | Wholesale & retail | 2026 |
| MR Building Solutions Limited | Construction | 2012 |
| MR Consultancy Plus UK Limited | Administrative & support | 2025 |
| MR Dodd Limited | Professional & scientific | 2024 |
| MR Driving School of Leeds Ltd | Education | 2020 |
| MR EGG MCR Limited | Hospitality | 2025 |
| MR Geek London Limited | Information & communication | 2025 |
| MR Glazing and Build Leeds Ltd | Construction | 2023 |
| MR MIX Ltd | Wholesale & retail | 2024 |
| MR Mobile Leeds Limited | Wholesale & retail | 2021 |
| MR Moustache Lounge Ltd | Hospitality | 2023 |
| MR N J London at YKC Ltd | Health & social care | 2011 |
| MR Oreo Limited | Information & communication | 2025 |
| MR Pharma Consultancy Services Leeds Ltd | Health & social care | 2023 |
| MR Properties (Leeds) Limited | Real estate | 2020 |
| MR Properties NW Ltd | Real estate | 2024 |
| MR Retail Limited | Wholesale & retail | 2022 |
| MR Shawarma Leeds Limited | Hospitality | 2026 |
| MR Sihra Ltd | Real estate | 2013 |
| MR Smith Locks Limited | Administrative & support | 2016 |
| MR Su's Belgrave Ltd | Hospitality | 2025 |
| MR Su's D&N Ltd | Hospitality | 2019 |
| MR Su's Frozen Food Ltd | Wholesale & retail | 2024 |
| MR Su's Leeds Ltd | Hospitality | 2023 |
| MR Su's Middlesborough Ltd | Hospitality | 2024 |
| MR Su's Nobel Ltd | Hospitality | 2025 |
| MR Tailor Ltd | Other services | 2023 |
| MR Techq Ltd | Information & communication | 2023 |
| MR White's Leicester Square Limited | Hospitality | 2021 |
| MR Window Cleaner Ltd | Administrative & support | 2020 |
| MR Yummy Ltd | Hospitality | 2022 |
| MRC Legal Ltd | Professional & scientific | 2015 |
| MRD Valeting Ltd | Other services | 2018 |
| MRF Property Investments Ltd | Hospitality | 2025 |
| MRH FS Consulting Ltd | Professional & scientific | 2025 |
| MRH Wash & Go Ltd | Hospitality | 2024 |
| MRH Wholesale Limited | Wholesale & retail | 2022 |
| Mrinax Limited | Health & social care | 2016 |
| MRJ Steel Services Ltd | Manufacturing | 2025 |
| MRK Consultants Limited | Information & communication | 2017 |
| MRK Consulting Ltd | Information & communication | 2019 |
| MRK Healthcare Ltd | Wholesale & retail | 2013 |
| MRL Grounds & Garden Maintenance Ltd | Administrative & support | 2017 |
| Mrnb Limited | Professional & scientific | 2017 |
| MRR Consulting Limited | Professional & scientific | 2011 |
| MRS B'S Dog Grooming Ltd | Other services | 2020 |
| MRS Bright Superior Launderette Limited | Other services | 2022 |
| MRS Jones Graphic Design Limited | Professional & scientific | 2005 |
| MRS Sponge Ltd | Administrative & support | 2023 |
| MRS Vinay Sharma Limited | Health & social care | 2021 |
| Mrsmillscooks Ltd | Hospitality | 2021 |
| MRT (Heathrow) Limited | Transport & logistics | 2018 |
| MRT Consultancy (UK) Limited | Real estate | 2011 |
| MRV Propco Total Park Limited | Real estate | 2020 |
| MRW & SW Limited | Professional & scientific | 2018 |
| MS a Muse Ltd | Information & communication | 2024 |
| MS Acumen Limited | Professional & scientific | 2016 |
| MS Advisory Ltd | Real estate | 2026 |
| MS Aippliances Repair Limited | Administrative & support | 2026 |
| MS and NZ Property Ltd | Real estate | 2024 |
| MS Broom Ltd | Administrative & support | 2026 |
| MS Construction Services Ltd | Administrative & support | 2020 |
| MS Couriers Ltd | Transport & logistics | 2026 |
| MS Delivers Limited | Transport & logistics | 2026 |
| MS DEN Ltd | Health & social care | 2013 |
| MS Dent Limited | Health & social care | 2024 |
| MS Finance Solutions Ltd | Professional & scientific | 2026 |
| MS Health Insight Ltd | Professional & scientific | 2015 |
| MS Little Stars Ltd | Health & social care | 2026 |
| MS Logistic Hire Ltd | Transport & logistics | 2021 |
| MS Medical Services (Leeds) Limited | Health & social care | 2021 |
| MS Ortho Limited | Health & social care | 2021 |
| MS Pet Food Group Limited | Professional & scientific | 2019 |
| MS Properties Management Ltd | Real estate | 2024 |
| MS Rainscreen Solutions Ltd | Construction | 2021 |
| MS Road Transport Limited | Transport & logistics | 2016 |
| MS Vent Ltd | Professional & scientific | 2018 |
| Ms&A Accounting Ltd | Professional & scientific | 2022 |
| MS7 Consulting Ltd | Information & communication | 2018 |
| MS7 Properties Ltd | Real estate | 2019 |
| MSA Kippax Ltd | Hospitality | 2022 |
| MSA Law Limited | Other services | 2012 |
| MSA Leeds Husarmia Limited | Arts & recreation | 2024 |
| MSA Projects Limited | Information & communication | 2025 |
| MSA Properties Leeds Ltd | Real estate | 2025 |
| Msaaa Limited | Wholesale & retail | 2025 |
| Msarif Estates Limited | Real estate | 2024 |
| MSB Building Yorkshire Limited | Construction | 2018 |
| MSC Building Services Leeds Limited | Construction | 2025 |
| MSC Joinery & Building Services Limited | Construction | 2008 |
| Mscc Trading Ltd | Construction | 2025 |
| Mscos Ltd | Health & social care | 2026 |
| MSD Business Analytics Ltd | Professional & scientific | 2014 |
| MSD Holdings (Yorkshire) Limited | Professional & scientific | 2018 |