| Medics Premier Ltd | Health & social care | 2023 |
| Medicsafe Ltd | Health & social care | 2014 |
| Medifurn Limited | Wholesale & retail | 2026 |
| Medigarments Limited | Manufacturing | 2006 |
| Medik Limited | Real estate | 2012 |
| Medilex Solutions Ltd | Information & communication | 2025 |
| Medilink East Midlands Limited | Administrative & support | 2004 |
| Medilink Midlands Limited | Administrative & support | 2017 |
| Medilink West Midlands Limited | Administrative & support | 2001 |
| Medina Accountants Limited | Professional & scientific | 2015 |
| Medina Boutique 1 Limited | Wholesale & retail | 2024 |
| Medina Boutique Limited | Wholesale & retail | 2024 |
| Medina Chemist Ltd | Wholesale & retail | 2006 |
| Medina Chemist Netherfield Ltd | Wholesale & retail | 2016 |
| Medina Connect Ltd | Health & social care | 2017 |
| Medina Connect Property 2 Ltd | Real estate | 2017 |
| Medina Connect Property Ltd | Real estate | 2017 |
| Medina Developments Limited | Other services | 2016 |
| Medina Glow Ltd | Construction | 2011 |
| Medina Green Limited | Real estate | 2009 |
| Medina Gregory Ltd | Real estate | 2021 |
| Medina Nottingham Ltd | Construction | 2018 |
| Medina Online Group Ltd | Wholesale & retail | 2025 |
| Medina Pathway Ltd | Real estate | 2026 |
| Medina SA Ltd | Real estate | 2020 |
| Medina Solutions Limited | Information & communication | 2018 |
| Medina Storage Limited | Transport & logistics | 2025 |
| Medina View Limited | Health & social care | 2008 |
| Medinahs Ltd | Real estate | 2018 |
| Mediox Limited | Manufacturing | 2020 |
| Medis Healthcare Limited | Administrative & support | 2017 |
| Mediscribe Consulting Limited | Professional & scientific | 2006 |
| Medisculpt Pro Ltd | Other services | 2024 |
| Medisern Limited | Wholesale & retail | 2019 |
| Medistim UK Limited | Administrative & support | 2012 |
| Meditate ME to Right Path Ltd | Health & social care | 2023 |
| Medivo Limited | Professional & scientific | 2026 |
| Medix Health Limited | Professional & scientific | 2014 |
| Medknow Limited | Information & communication | 2024 |
| Medley Property Ltd | Real estate | 2024 |
| Medoc Computers Limited | Information & communication | 1981 |
| Medpharm Services Ltd | Wholesale & retail | 2016 |
| MEDS2U Pharm Limited | Wholesale & retail | 2021 |
| Medscribeai Ltd | Information & communication | 2023 |
| Medtech Corp UK Ltd | Wholesale & retail | 2020 |
| Medtoday Ltd | Health & social care | 2021 |
| Medtranz Limited | Water & waste | 2007 |
| Medusa Exotics Ltd | Wholesale & retail | 2021 |
| Medusa Tattoo Parlour Ltd | Other services | 2017 |
| Medvisory Limited | Health & social care | 2009 |
| Medway Express Ltd | Wholesale & retail | 2020 |
| Medway Orthopaedics LLP | | 2018 |
| Medwell & Musson Property Ltd | Real estate | 2025 |
| Meecafe Ltd | Hospitality | 2024 |
| Meehan Estates Ltd | Real estate | 2020 |
| Meekam Ltd | Wholesale & retail | 2023 |
| Meeks Contracting Limited | Real estate | 2013 |
| Meeky’S Grill Ltd | Hospitality | 2025 |
| Meemum Ltd | Health & social care | 2019 |
| Meeno Holdings Limited | Real estate | 1961 |
| Meenu & Shailesh Limited | Health & social care | 2021 |
| Meeples & Mulligans Ltd | Wholesale & retail | 2021 |
| Meeralike Limited | Real estate | 2026 |
| Meermark Limited | Manufacturing | 2013 |
| Meet and EAT Limited | Hospitality | 2017 |
| Meeta Dave Ltd | Professional & scientific | 2025 |
| Meeting Ground Theatre Company | Arts & recreation | 1986 |
| Meeting Rooms Nottingham Ltd | Real estate | 2015 |
| MEG Consulting Limited | Professional & scientific | 2008 |
| MEG7 Limited | Professional & scientific | 2019 |
| Mega Construction Ltd | Construction | 2025 |
| Mega Food Wholesales Ltd | Wholesale & retail | 2025 |
| Mega GAS Services Ltd | Construction | 2022 |
| Mega Marketing Limited | | 1991 |
| Mega Real Estate Ltd | Real estate | 2025 |
| Mega TEC Limited | Professional & scientific | 2024 |
| Megaclose 1 Limited | Real estate | 2017 |
| Megaclose Family Holdings Limited | Real estate | 2016 |
| Megaclose Group Limited | Professional & scientific | 2019 |
| Megaclose Limited | Real estate | 1998 |
| Megaclose Properties 1 Limited | Real estate | 2019 |
| Megaclose Properties 2 Limited | Construction | 2019 |
| Megaclose Properties 3 Limited | Real estate | 2019 |
| Megadata Refinement Ltd | Information & communication | 2023 |
| Megagon Limited | Financial services | 2014 |
| Megalat Ltd | Wholesale & retail | 2019 |
| Megalock Motorsport Limited | Manufacturing | 2026 |
| Megan & Isaac Post Production Ltd | Information & communication | 2009 |
| Megan Ismay Ltd | Wholesale & retail | 2021 |
| Megan Lucys Ltd | Health & social care | 2020 |
| Megan Slade Design Ltd | Professional & scientific | 2021 |
| Meganbrook Ltd | Health & social care | 2025 |
| Meganest Ltd | Wholesale & retail | 2025 |
| Megaspin Ltd | Information & communication | 2022 |
| Megatrix Ltd | Information & communication | 2025 |
| Megavaux UK Ltd | Wholesale & retail | 2020 |
| Megga Holdings Limited | Real estate | 1999 |
| Meglec Electrical Contractors Limited | Construction | 2017 |
| Megmoo Holdings Limited | Professional & scientific | 2016 |
| Megzina Ltd | Real estate | 2013 |