| Morex Commercial Limited | Financial services | 2001 |
| Morton Venture Ltd | Administrative & support | 2017 |
| Motel Sass Ltd | Wholesale & retail | 2018 |
| Mountwood Windows and Doors Limited | Construction | 2009 |
| MP Social Work Solutions Ltd | Health & social care | 2026 |
| MR Appointments Limited | Professional & scientific | 2025 |
| MS Access Limited | Manufacturing | 2018 |
| Mtav Business Services Ltd | Information & communication | 2024 |
| NAD Plus Gold NW Limited | Wholesale & retail | 2025 |
| Nanny Sharon's Alpaca Farm Prenton C.I.C. | Agriculture & fishing | 2022 |
| Nathan E Composites Ltd | Manufacturing | 2026 |
| Nation Electrical Services Limited | Construction | 2022 |
| Nawaytou Medical Ltd | Real estate | 2025 |
| Neurowell Hub CIC | Education | 2025 |
| Newnu Ltd | Real estate | 2025 |
| Next Generation (Liverpool) Limited | Arts & recreation | 2015 |
| Next Generation Mixed Martial Arts Limited | Arts & recreation | 2010 |
| Nichol Property Investments Limited | Real estate | 2024 |
| Nickigjb Ltd | Wholesale & retail | 2024 |
| Nicolee Tsin Limited | Arts & recreation | 2025 |
| NID Property Management Limited | Real estate | 2026 |
| Nightingale Coffee Ltd | Hospitality | 2024 |
| NO. 13 Caroline Place Management Company Limited | Households | 1983 |
| NO. 8 Caroline Place Management Company Limited | Households | 1984 |
| Norfolk House Phase 2 68 Norfolk Street Liverpool RTM Company Limited | Extraterritorial | 2020 |
| Normanston Limited | Households | 2004 |
| North Built Ltd | Real estate | 2018 |
| North Cheshire Glass Ltd | Manufacturing | 2024 |
| North West Infrastructure Ltd | Construction | 2026 |
| Northwest Care Homes Ltd | Health & social care | 2026 |
| Nosepicker Ltd | Information & communication | 2022 |
| Noubalm Franchise Ltd | Other services | 2025 |
| Noubalm Kitchen Limited | Manufacturing | 2021 |
| Noumo Ltd | Information & communication | 2025 |
| Nourishnow Ltd | Health & social care | 2024 |
| Nouyou CIC | Health & social care | 2022 |
| Nova Productions Limited | Information & communication | 2015 |
| NPI Hospitality Limited | Arts & recreation | 2023 |
| NS Roscelli Foods Ltd | Hospitality | 2026 |
| NSM Property Group Ltd | Wholesale & retail | 2018 |
| Nu:Wellness Ltd | Health & social care | 2025 |
| Nuclear Quality Limited | Professional & scientific | 2023 |
| Nugent Eschert Properties Ltd | Real estate | 2022 |
| Numerical Modelling Ltd | Professional & scientific | 2017 |
| Oak Trees Multi Academy Trust | Education | 2017 |
| Oakes Railway Services Ltd | Construction | 2018 |
| Oberos Limited | Manufacturing | 2014 |
| Oddpenny Ltd | Professional & scientific | 2009 |
| OF the Bone Consultancy Ltd | Professional & scientific | 2025 |
| OJH Electrical Ltd | Construction | 2017 |
| OMB Engineering Services Ltd | Professional & scientific | 2018 |
| OMN Services Ltd | Professional & scientific | 2025 |
| ON the UP Properties Limited | Real estate | 2023 |
| Onarion Ltd | Wholesale & retail | 2025 |
| Open Territory Ltd | Information & communication | 2022 |
| Origin Strategy Group Ltd | Professional & scientific | 2024 |
| Orridge Building and Roofing Ltd | Construction | 2022 |
| Oscar Barnaby Limited | Real estate | 2021 |
| Ostara Alchemy CIC | Other services | 2022 |
| OUR Happy Hub CIC | Other services | 2021 |
| Outlier Solutions Limited | Professional & scientific | 2015 |
| Oxton Auto Engineering Ltd | Wholesale & retail | 2017 |
| Oxton Beer Shop Limited | Wholesale & retail | 2019 |
| Oxton Boutique Ltd | Wholesale & retail | 2018 |
| Oxton Group Ltd | Information & communication | 2026 |
| Oxton Manor Ltd | Health & social care | 2010 |
| Oxton Property Rental Limited | Real estate | 2026 |
| P & M (Wirral) Ltd | Real estate | 2016 |
| P.C.Construction (Wirral) Limited | Construction | 2007 |
| Pals Connections Limited | Financial services | 2024 |
| Pankhurst Project Consulting Limited | Professional & scientific | 2021 |
| Papa Crust Ltd | Hospitality | 2025 |
| Parry Clulow Limited | Manufacturing | 2005 |
| Pastel Pooch Boutique Ltd | Wholesale & retail | 2023 |
| Patrick Black Ltd | Transport & logistics | 2026 |
| Pawel Food Ltd | Hospitality | 2017 |
| PB Liquid Lipo Limited | Wholesale & retail | 2020 |
| Pedro & Co. Global Foods Limited | Wholesale & retail | 2025 |
| Peninsula Builders Ltd | Construction | 2025 |
| Peninsula Football Group Ltd | Education | 2020 |
| Pfaff-Silberblau Ltd | Transport & logistics | 1983 |
| Philistia Properties Ltd | Real estate | 2020 |
| Phylax Group Consultants Ltd | Professional & scientific | 2025 |
| Pinpoint Developments Limited | Health & social care | 2000 |
| PIT Stop Car Wash (NW) Ltd | Other services | 2013 |
| Pixel Candy Ltd | Administrative & support | 2018 |
| PKM Technologies Limited | Manufacturing | 2007 |
| Place Enterprise Ltd | Professional & scientific | 2015 |
| Plassey Nail & Lash Boutique Limited | Other services | 2015 |
| Popson Motors Limited | Wholesale & retail | 2024 |
| Portside Propertys Limited | Real estate | 2024 |
| Posh Hair and Beauty (Heswall) Limited | Other services | 2018 |
| Pragmatic People Solutions Limited | Professional & scientific | 2004 |
| Premier Consulting 2018 Limited | Professional & scientific | 2018 |
| Premium Thai Produce Ltd. | Wholesale & retail | 2005 |
| Prenton Care Ltd | Health & social care | 2025 |
| Prentonwood Court Management Company Limited | Households | 1976 |
| Prestige Building Svcs Limited | Construction | 2012 |
| Prim and Proper Professional Cleaners Ltd | Administrative & support | 2019 |
| Print Logic Ltd | Professional & scientific | 2018 |