| MS Evolvera Tech Ltd | Information & communication | 2025 |
| MS Force Ltd | Information & communication | 2019 |
| MS Healthcare Provider Limited | Real estate | 2021 |
| MS Legal Limited | Professional & scientific | 2025 |
| MS Logistics London Limited | Transport & logistics | 2024 |
| MS London Ltd | Other services | 2016 |
| MS Newbuild Ltd | Construction | 2024 |
| MS Services Trading Ltd | Wholesale & retail | 2025 |
| MS UK Consulting Ltd | Professional & scientific | 2025 |
| MS Virk Construction Ltd | Construction | 2025 |
| Ms&S Properties Limited | Real estate | 2023 |
| MSA Enterprises Ltd | Wholesale & retail | 2011 |
| MSA Global Investments Ltd | Real estate | 2013 |
| MSA Healthcare Limited | Health & social care | 2013 |
| MSA Holding Group Ltd | Real estate | 2019 |
| MSA Management Limited | Construction | 2016 |
| MSA Upton Lane Ltd | Real estate | 2019 |
| Msalark Ltd | Wholesale & retail | 2025 |
| MSB Association | Other services | 2024 |
| MSC Network Ltd | Construction | 2019 |
| MSC Solutions Limited | Information & communication | 2017 |
| MSD UK Investments Ltd | Real estate | 2020 |
| MSF Driving School Limited | Education | 2024 |
| MSI Distributors Limited | Wholesale & retail | 2010 |
| MSI Property Holding Ltd | Real estate | 2020 |
| Msi-Wlm | Information & communication | 2005 |
| MSJ Cloud Tech Limited | Information & communication | 2026 |
| MSK Financial Consultants Limited | Professional & scientific | 2018 |
| MSK Management Services Ltd | Administrative & support | 2023 |
| MSK One Ltd | Real estate | 2025 |
| MSK Property Investments Limited | Real estate | 2017 |
| MSK Rail Solutions Ltd | Professional & scientific | 2024 |
| MSK Sales Ltd | Wholesale & retail | 2025 |
| MSK Support Services Ltd | Administrative & support | 2024 |
| Mskent Prestige Limited | Transport & logistics | 2023 |
| MSM Brokers Ltd | Wholesale & retail | 2024 |
| MSM Construction (London) Limited | Construction | 2019 |
| MSM Merchants Ltd | Wholesale & retail | 2026 |
| Msmlocums Ltd | Professional & scientific | 2026 |
| Msms Mega Store Limited | Wholesale & retail | 2023 |
| MSP Studio Limited | Professional & scientific | 2013 |
| Msptraders Ltd | Wholesale & retail | 2024 |
| MSQ Corporation Ltd | Real estate | 2021 |
| Msquare Trading Limited | Wholesale & retail | 2025 |
| MSR Accountancy Ltd | Extraterritorial | 2015 |
| MSR Accounting Consultancy Services Ltd | Professional & scientific | 2018 |
| MSR Commercial Properties Ltd | Real estate | 2009 |
| MSR Consulting Group LLP | | 2021 |
| MSR Financial Consultancy Services Ltd | Professional & scientific | 2016 |
| MSR Group Limited | Professional & scientific | 2008 |
| MSR Innovations Ltd | Professional & scientific | 2018 |
| MSR Inventing Ltd | Professional & scientific | 2015 |
| MSR Investment Ltd | Real estate | 2009 |
| MSR Locumz Limited | Extraterritorial | 2013 |
| MSR Management Ltd | Professional & scientific | 2011 |
| MSR Management Services Ltd | Professional & scientific | 2018 |
| MSR Medic Services Ltd | Professional & scientific | 2018 |
| MSR Payroll Bureau Ltd | Extraterritorial | 2008 |
| MSR Property Consultancy Services Ltd | Real estate | 2016 |
| MSR Secretarial Services Limited | Extraterritorial | 2008 |
| MSR Secretarials Service Limited | Administrative & support | 2013 |
| MSR Smartpay Ltd | Administrative & support | 2017 |
| MSR Tax Advice Ltd | Professional & scientific | 2016 |
| MSR Tax Investigations Ltd | Professional & scientific | 2009 |
| MSR Tax Services Ltd | Professional & scientific | 2018 |
| MSR Wealth Management Ltd | Real estate | 2008 |
| MSS (London) Ltd | Construction | 2024 |
| MSS (PVT) Limited | Construction | 2015 |
| Mssn Ltd | Real estate | 2019 |
| MST Accounting and Management Consultancy Ltd | Professional & scientific | 2014 |
| MST Essex Ltd | Real estate | 2025 |
| MSU Investments Limited | Real estate | 2024 |
| MSU Properties Limited | Real estate | 2016 |
| Mszk Ltd | Wholesale & retail | 2025 |
| Mszx Limited | Construction | 2024 |
| MT Capitals Ltd | Professional & scientific | 2024 |
| MT Doughnuts Ltd | Hospitality | 2023 |
| MT Services Limited | Professional & scientific | 2025 |
| MT Solving Ltd | Construction | 2025 |
| Mt&Family Ltd | Construction | 2017 |
| Mtcrares Ltd | Construction | 2014 |
| MTD Tax Filing Ltd | Extraterritorial | 2025 |
| Mtdrywall-Md Ltd | Construction | 2023 |
| MTK Global Services Ltd | Administrative & support | 2025 |
| MTK Group Ltd | Other services | 2019 |
| MTL Lounge 3 Limited | Other services | 2024 |
| MTL Tanning Limited | Other services | 2025 |
| MTLE18 Ltd | Other services | 2025 |
| Mtma FP Ltd | Construction | 2019 |
| Mtmd Limited | Construction | 2014 |
| MTN Contractor Ltd | Construction | 2024 |
| MTN Logistics Ltd | Wholesale & retail | 2020 |
| Mtqauto Ltd | Wholesale & retail | 2023 |
| MTR Projects Ltd | Health & social care | 2022 |
| MTS Engineering Solutions Ltd | Mining & quarrying | 2021 |
| MTS Express Ltd | Construction | 2016 |
| MTV Drywall Ltd | Construction | 2019 |
| MU Civil Ltd | Construction | 2019 |
| MU Construction Solutions Ltd | Administrative & support | 2025 |
| MU Tech Traders Limited | Wholesale & retail | 2025 |