| Michalina Letting Limited | Real estate | 2025 |
| Midgeland Enterprises Limited | Agriculture & fishing | 2014 |
| Midgeland Riding School Limited | Arts & recreation | 1993 |
| Mike Lennon Aeroelec Ltd | Manufacturing | 2013 |
| Mills Fairview Ltd | Real estate | 2018 |
| MIM Consultancy Ltd | Health & social care | 2022 |
| Mini Adventures Group Limited | Wholesale & retail | 2020 |
| Minilinks.Golf Limited | Arts & recreation | 2025 |
| Mitre Joinery Ltd | Manufacturing | 2025 |
| MLA Accountants & Bookkeepers Ltd | Professional & scientific | 2013 |
| Moldan Property Limited | Real estate | 2018 |
| Molyneux Consulting Emea Ltd | Professional & scientific | 2014 |
| Monkeybanners.Co.Uk Limited | Manufacturing | 2016 |
| Moodii Limited | Information & communication | 2026 |
| Moor Park Property Company Limited | Real estate | 2014 |
| Moorcrofts Cakery Ltd | Wholesale & retail | 2021 |
| Moore Interiors & Kitchens Limited | Wholesale & retail | 2025 |
| Moore Than Homes Limited | Construction | 2023 |
| Moores Builders Lancashire Limited | Construction | 1981 |
| Moorland Court (Poulton) Limited | Households | 1974 |
| Moorland Sports Club Limited | Real estate | 1946 |
| Mortgage Factory UK Ltd | Financial services | 2007 |
| Moss Logistics & Recovery Ltd | Transport & logistics | 2026 |
| Moss Side Childrens Nursery Limited | Education | 2011 |
| MR Bennys Food Limited | Hospitality | 2023 |
| Multipave Ltd | Administrative & support | 2023 |
| Murro Lettings Limited | Real estate | 2024 |
| Music Lesson Pro Limited | Information & communication | 2025 |
| My Glasses Shop Limited | Wholesale & retail | 2022 |
| My MTD Limited | Information & communication | 2018 |
| My Wedding Dreams Ltd. | Professional & scientific | 2014 |
| NAM Leisure Ltd | Hospitality | 2026 |
| Nathan's Decorating Solutions Ltd | Construction | 2025 |
| Nationwide Workwear Limited | Wholesale & retail | 2024 |
| Natty V PT Ltd | Other services | 2021 |
| Natural Air Holdings Limited | Financial services | 2026 |
| Natural Finishes Limited | Construction | 2019 |
| NB Professional Beauty Academy Ltd | Other services | 2016 |
| Neve Investments Ltd | Real estate | 2011 |
| New Look Construction Limited | Construction | 2002 |
| New Osborne Luxury Suites Limited | Hospitality | 2022 |
| Newton Abbot Management Company Limited | Real estate | 2012 |
| NFC Autocare Ltd | Wholesale & retail | 2023 |
| Nico and Friends Ltd | Other services | 2022 |
| Nightingale Environmental Ltd | Administrative & support | 2019 |
| Nito Property Ltd | Real estate | 2025 |
| Nkss Pro Care Limited | Health & social care | 2022 |
| NN Electrical and Energy Monitoring Solutions Ltd | Construction | 2019 |
| North Blackpool Regeneration Community Interest Company | Other services | 2024 |
| North Pier Productions Ltd | Information & communication | 2015 |
| North Star Exterior Cleaning Services Ltd | Administrative & support | 2019 |
| North West Community Stars Football Club CIC | Arts & recreation | 2025 |
| North West Plastic Recycling Ltd | Water & waste | 2011 |
| Northern Aluminium Limited | Administrative & support | 2018 |
| Northern Artificial Grass Limited | Administrative & support | 2020 |
| Northern Cobblestone (Wyre) Limited | Construction | 2019 |
| Northern Cobblestone Ltd | Construction | 2024 |
| Norwood House Services Ltd | Households | 2017 |
| Nova Food 1 Ltd | Hospitality | 2026 |
| NTS Pro Care Limited | Health & social care | 2022 |
| Nurtured With Nature Limited | Other services | 2023 |
| Nutravet (UK) Limited | Wholesale & retail | 2010 |
| NW Equestrian & Canine Services Ltd | Agriculture & fishing | 2025 |
| O'Hagan Managment Group Limited | Hospitality | 2022 |
| Oakdale Management Limited | Real estate | 2007 |
| Oaklands Flats (Poulton) Limited | Households | 1970 |
| Oasis Body and Soul Ltd | Health & social care | 2017 |
| Oasis Wellbeing Clinic Limited | Health & social care | 2018 |
| Occasions TLI Limited | Wholesale & retail | 1975 |
| Offshore Project Services Ltd | Professional & scientific | 2025 |
| OFL Club Ltd | Wholesale & retail | 2026 |
| OH Duck ME Ltd | Professional & scientific | 2020 |
| OH SEW Bootiful Ltd | Wholesale & retail | 2020 |
| OLB Courier Services Ltd | Transport & logistics | 2024 |
| Oldfield Solutions Limited | Information & communication | 2014 |
| Oliver Norven Limited | Wholesale & retail | 2026 |
| Oliver's Inn Limited | Hospitality | 2025 |
| Olivia's Beauty House Ltd | Other services | 2025 |
| OMB Developments Ltd | Real estate | 2024 |
| Omnia Global Solutions Limited | Wholesale & retail | 2021 |
| ON Point Aesthetics Ltd | Other services | 2015 |
| One Clothing Limited | Wholesale & retail | 2012 |
| Opera Properties Ltd | Real estate | 2016 |
| Optima Facilities Group Ltd | Administrative & support | 2026 |
| Orchard Apartments (LPG2) Ltd | Professional & scientific | 2007 |
| Orderappy Limited | Information & communication | 2018 |
| Ottie (PLF) Limited | Hospitality | 2025 |
| P S & C Developments Ltd | Real estate | 2021 |
| Pace Care Ltd | Health & social care | 2025 |
| Pace NSP Ltd | Real estate | 2025 |
| PAD Contemporary Living Limited | Wholesale & retail | 2007 |
| Pailing Consulting Limited | Information & communication | 2008 |
| Palatine Construction Company Limited | Real estate | 1989 |
| Palmers Heating UK Ltd | Energy | 2017 |
| Palmers of Poulton Ltd | Wholesale & retail | 2010 |
| Pampavathi Limited | Health & social care | 2019 |
| Parilux Films International Limited | Information & communication | 2023 |
| Paris Cinema Magazine Limited | Information & communication | 2017 |
| Park Lane Garage (Preesall) Limited | Wholesale & retail | 2017 |
| Parsons Surveyors Ltd | Professional & scientific | 2025 |