| Macaskills Legal Limited | Extraterritorial | 2014 |
| MAI Thai Prestatyn Ltd | Hospitality | 2024 |
| MAI Thai Takeaway Ltd | Hospitality | 2021 |
| Make IT Simple Limited | Information & communication | 2012 |
| Margden Heating Limited | Construction | 2006 |
| Marmalade Store Limited | Administrative & support | 2017 |
| Meacham Limited | Information & communication | 2013 |
| Megalocars Ltd | Transport & logistics | 2024 |
| Megga Solutions Limited | Manufacturing | 2014 |
| MEIMEI33 Ltd | Hospitality | 2024 |
| MEP Automotive Ltd | Wholesale & retail | 2019 |
| Mercy Projects UK | Other services | 2012 |
| Merm Enterprises Limited | Information & communication | 2023 |
| Mil-Tek Rental UK Limited | Administrative & support | 2022 |
| Mil-Tek UK Recycling and Waste Solutions Ltd | Wholesale & retail | 2000 |
| Mill Lane Business Centre Ltd | Real estate | 2025 |
| Mill Lane Homes Buckley Ltd | Construction | 2016 |
| Mitchell Fields Limited | Professional & scientific | 2023 |
| Mjps Properties Limited | Real estate | 2018 |
| Mobexa Global Ltd | Wholesale & retail | 2025 |
| Moments Candles Co Limited | Manufacturing | 2019 |
| Morris Taverns Ltd | Hospitality | 2025 |
| MR Aesthetics Nurse Limited | Other services | 2025 |
| MSI Buckley Ltd | Hospitality | 2026 |
| Mumbai Lounge Buckley Ltd | Hospitality | 2026 |
| My Storage Hub Limited | Real estate | 2013 |
| N R Davies Limited | Construction | 2003 |
| N.E.W.Fo.Ca.S. Limited | Health & social care | 2000 |
| Nant Hall Developments Limited | Construction | 2023 |
| Nataliej Limited | Health & social care | 2022 |
| NDA Barber Ltd | Other services | 2026 |
| Netfield Limited | Real estate | 2022 |
| Newells Clothing & Accessories Ltd | Wholesale & retail | 2020 |
| Nick Thompson Limited | Financial services | 2016 |
| NND Energy Ltd | Construction | 2023 |
| Nolan Automotive Ltd | Transport & logistics | 2025 |
| North West Enamellers Ltd | Manufacturing | 2013 |
| Noyan Limited | Wholesale & retail | 2022 |
| NW Door Supply Ltd | Manufacturing | 2026 |
| One Way of Life Ltd | Wholesale & retail | 2014 |
| P Chapman Consulting Limited | Professional & scientific | 2023 |
| P J Bathrooms Limited | Construction | 2010 |
| Pacenode Validation Ltd | Administrative & support | 2018 |
| Pentagon (NW) Limited | Construction | 2011 |
| Petina Limited | Wholesale & retail | 2024 |
| Phantangled Limited | Professional & scientific | 2025 |
| Pheonix UK Building & Property Maintenance Ltd | Construction | 2009 |
| Pheonix UK Holdings Limited | Hospitality | 2021 |
| Phillips Property Holdings Ltd | Financial services | 2020 |
| Pinestar Limited | Information & communication | 2015 |
| Pink Daisy Emporium Limited | Wholesale & retail | 2023 |
| Pink Daisy Garment Care Ltd | Administrative & support | 2019 |
| Play and Leisure Limited | Manufacturing | 1991 |
| PNW Roofing Limited | Construction | 1995 |
| Political Passport Ltd | Professional & scientific | 2026 |
| POS Logix Ltd | Information & communication | 2010 |
| Pound Plus Mart Ltd | Wholesale & retail | 2025 |
| Prestige Resin Bound Specialists Ltd | Construction | 2017 |
| Property Land Holding Ltd | Real estate | 2023 |
| Prosperity Pro Ltd | Professional & scientific | 2025 |
| Protea Works Ltd | Professional & scientific | 2011 |
| Qest Commercial Management Limited | Professional & scientific | 2013 |
| Quant Accountants Limited | Professional & scientific | 2018 |
| R Edwards Engineering Ltd | Professional & scientific | 2018 |
| R&V New Build Windows Ltd | Construction | 2024 |
| RAM IT Business Solutions Ltd | Information & communication | 2022 |
| RAY Webb Wills & Estate Planning LLP | | 2023 |
| Regency GAS Solutions Limited | Construction | 2019 |
| Regency of Buckley Ltd | Construction | 2011 |
| Reset and Recover Halton CIC | Health & social care | 2026 |
| RF Windows Ltd | Administrative & support | 2025 |
| RG Sports Management Limited | Arts & recreation | 2017 |
| Richie Hayes & Sons Dairy Limited | Wholesale & retail | 2011 |
| Rocky Promotions (the TIV) Ltd | Arts & recreation | 2023 |
| Rogers Private Hire Contracts Ltd | Transport & logistics | 2014 |
| Rooms & Views (Retail) Limited | Wholesale & retail | 2016 |
| Rooms & Views Installations Limited | Construction | 2013 |
| Rooms & Views Limited | Extraterritorial | 2008 |
| Rooms & Views Manufacturing (South Wales & West) Limited | Manufacturing | 2016 |
| Rooms & Views Manufacturing Limited | Manufacturing | 1998 |
| Rootin Tootin Computin Ltd | Wholesale & retail | 2019 |
| Roscoe Steel and Maintenance Ltd | Administrative & support | 2024 |
| RS Brickwork & Building Ltd | Construction | 2025 |
| RSB Developments Limited | Construction | 2019 |
| Ryan GAS Services Limited | Construction | 2019 |
| S.E Hunter Associates Ltd | Administrative & support | 2020 |
| Saas Tech UK Ltd | Information & communication | 2025 |
| Safe Electrical and GAS Limited | Construction | 2016 |
| Salco Developments 39A Mold RD Ltd | Construction | 2022 |
| Salco Property 22 Ltd | Real estate | 2022 |
| Sam's Courier Services Ltd | Other services | 2022 |
| Sandra Bayliss Ltd | Arts & recreation | 2012 |
| Saving Pound Ltd | Wholesale & retail | 2023 |
| SCR Services Limited | Administrative & support | 2015 |
| Sean Williams Ltd | Extraterritorial | 2025 |
| Shelby's Place Community Interest Company | Health & social care | 2022 |
| Shestruct Ltd | Construction | 2024 |
| Short Fuse Electrical Limited | Construction | 2015 |
| SIM Realstate Ltd | Real estate | 2025 |
| Slf-Enterprises Limited | Professional & scientific | 2023 |