| Make-A-Memory Ltd | Arts & recreation | 2017 |
| Making Ideas Limited | Wholesale & retail | 2023 |
| Malgar Ltd | Real estate | 2017 |
| Maloney Geotechnics Limited | Administrative & support | 2013 |
| Manchester Umbrella Co. Limited | Manufacturing | 1988 |
| Mandolin Ltd | Real estate | 2011 |
| Manley & Mouldsworth Gardening Club CIC | Arts & recreation | 2023 |
| Manley Mere Leisure Limited | Administrative & support | 2001 |
| Maria Flanagan Associates Ltd | Health & social care | 2023 |
| Mark Anthony Lettings Limited | Real estate | 2020 |
| Marketing Power Limited | Administrative & support | 2002 |
| Massive Awesome Ltd. | Arts & recreation | 2015 |
| Masterson Installation Services Limited | Construction | 2022 |
| Matty Owen Limited | Construction | 2007 |
| Mavs Community CIC | Health & social care | 2026 |
| Maxine Mazumder Limited | Arts & recreation | 2002 |
| Maxton Suspension Ltd | Professional & scientific | 2022 |
| Mcloughlin Property Services Ltd | Construction | 2026 |
| Mcwhan Properties Ltd | Real estate | 2021 |
| MDH Consultation Ltd | Information & communication | 2024 |
| MDW Contracts Ltd | Construction | 2025 |
| Meadowdale (Llanymynech) Management Company Limited | Households | 2017 |
| Meme Property Limited | Real estate | 2024 |
| MEP Professional Services Ltd | Construction | 2008 |
| Mere's 2 Management Limited | Households | 2017 |
| MERFIN2025 Ltd | Hospitality | 2025 |
| Merlin Photography Studio CIC | Professional & scientific | 2025 |
| MFG Computing Limited | Professional & scientific | 2005 |
| MG Turfcare Limited | Wholesale & retail | 2012 |
| MGW Arts Services Ltd | Information & communication | 2022 |
| Michell Associates Limited | Professional & scientific | 2008 |
| Midcheshireplantandmachineryhire Ltd | Administrative & support | 2025 |
| Millbank Apartments Limited | Real estate | 2005 |
| MJH HV Safety Ltd | Professional & scientific | 2025 |
| MKM Training & Consulting Limited | Professional & scientific | 2022 |
| MMG Associates Ltd | Construction | 2015 |
| Mobler Ltd | Manufacturing | 2024 |
| Modaro Limited | Construction | 2025 |
| Monica Stays Limited | Hospitality | 2026 |
| Mosaic (NW) CIC | Health & social care | 2025 |
| Moss Lane Home Styling Limited | Wholesale & retail | 2023 |
| Mosson Professional Services Limited | Administrative & support | 2016 |
| Moxley Ltd | Wholesale & retail | 2025 |
| MQI Limited | Other services | 2009 |
| MR Barbers (Chester) Limited | Other services | 2016 |
| MRE Inspection Services Ltd | Manufacturing | 2025 |
| MT Clarke Construction Ltd | Construction | 2023 |
| N & B Properties Limited | Real estate | 2002 |
| N C Homecare Limited | Health & social care | 2010 |
| Naga Developments Ltd | Construction | 2019 |
| Natalie Nolan Limited | Professional & scientific | 2019 |
| National Lifts Ltd | Wholesale & retail | 2025 |
| Nature Positive Limited | Professional & scientific | 2020 |
| Naylor Purchasing Solutions Limited | Administrative & support | 2011 |
| NDJ Catering Limited | Hospitality | 2016 |
| Nettleridge Limited | Construction | 2003 |
| New Pale Aesthetics Cheshire Limited | Health & social care | 2021 |
| Next Level Consultancy Group Limited | Professional & scientific | 2025 |
| Ngci Limited | Construction | 2005 |
| Ngec Ltd | Energy | 2011 |
| Ngeci Limited | Financial services | 2023 |
| NO 5 the Barbers (Frodsham) Limited | Other services | 2016 |
| NON Destructive Testing Services Limited | Professional & scientific | 2002 |
| Norcross Kasper Holdings Ltd | Real estate | 2025 |
| Norcross Lettings Ltd | Real estate | 2020 |
| Norley Plant Hire Ltd | Administrative & support | 2026 |
| North Tattoo Ltd. | Arts & recreation | 2025 |
| Northcotes Hair Limited | Wholesale & retail | 2000 |
| Nortz and Crosses Ltd | Real estate | 2021 |
| Novaforce UK Limited | Administrative & support | 2018 |
| NPT Aviation Ltd | Manufacturing | 2025 |
| Nurseryhouse Property Management Ltd | Real estate | 2023 |
| Nuttall Heating and Plumbing Ltd | Construction | 2019 |
| Oakmere Kennels Limited | Agriculture & fishing | 2025 |
| Ogee Consulting Limited | Professional & scientific | 2014 |
| Old New Borrowed Blue Ltd | Wholesale & retail | 2022 |
| Oliboo Limited | Hospitality | 2026 |
| ON the Edge Stunt Show Ltd | Administrative & support | 2023 |
| ON Trend Gifts LP | | 2020 |
| Oneperformance(North) Limited | Professional & scientific | 2018 |
| Online Hardware Ltd | Wholesale & retail | 2025 |
| Onym Consultancy Limited | Professional & scientific | 2018 |
| Orchard Close Consultancy Ltd | Professional & scientific | 2019 |
| Orchard Gate (Kingsley) Management Co. Limited | Households | 2006 |
| Orchard Property Limited | Real estate | 2022 |
| OS Planning Limited | Professional & scientific | 2021 |
| OUT There Guides Limited | Professional & scientific | 2012 |
| Owen Smith Consultancy Ltd | Professional & scientific | 2024 |
| P Brook Consulting Limited | Professional & scientific | 2016 |
| Pabs Engineering Ltd | Professional & scientific | 2022 |
| Paddy Jack Properties Limited | Hospitality | 2024 |
| PAH Transport Ltd | Transport & logistics | 2024 |
| Pamper ME Pronto Ltd | Information & communication | 2017 |
| Parklife 2021 Ltd | Administrative & support | 2009 |
| Parkview (Cheshire) Limited | Hospitality | 2023 |
| Patrick Mann & Associates Ltd | Professional & scientific | 2011 |
| Patrick Mann Properties Ltd | Construction | 2025 |
| Paul Jones Consultancy Services Limited | Information & communication | 2018 |
| Paula Reader People Consulting Limited | Administrative & support | 2022 |
| Pav'D Limited | Health & social care | 2019 |