| L C Property Portfolios Ltd | Real estate | 2023 |
| L S R Motor Services Limited | Extraterritorial | 2013 |
| L.Caers Ltd | Construction | 2022 |
| Landmark Speciality Coffee Ltd | Manufacturing | 2018 |
| Langtons Estate Agents Limited | Real estate | 2026 |
| Launceston & Tamar Valley PCN Ltd | Health & social care | 2021 |
| Legend Land Limited | Agriculture & fishing | 2014 |
| Lewdown Scaffolding Limited | Construction | 2011 |
| LJ Motor Company Ltd | Wholesale & retail | 2024 |
| Loadpoint Precision Engineering Limited | Manufacturing | 1999 |
| Lockington Properties Limited | Real estate | 2005 |
| Lost Surfers Ltd | Hospitality | 2022 |
| Lotus Care Technology Limited | Wholesale & retail | 2008 |
| Love Your Skin UK Limited | Other services | 2026 |
| LRN13 Ltd | Arts & recreation | 2024 |
| Luckett Heritage CIC | Real estate | 2015 |
| Lupa Property Services Ltd | Construction | 2021 |
| Lynfield Limited | Administrative & support | 2023 |
| Lynher Training Limited | Education | 2013 |
| M & a Chessell Building & Developments Ltd | Construction | 2024 |
| M and S Butchers (PAR) Limited | Wholesale & retail | 2024 |
| M J Pearce Electricial Contractors Limited | Construction | 2017 |
| M J Troup Plant Hire & Groundworks Limited | Administrative & support | 2025 |
| M. H. Hart & SON Limited | Construction | 2003 |
| M.I.A. Rentals Ltd | Real estate | 2021 |
| Make Stuff Happen CIC | Information & communication | 2024 |
| Malcolm Eaton Properties Limited | Households | 2010 |
| Mansion Developments South West Limited | Construction | 2014 |
| Marcus Rogers Fencing Limited | Construction | 2026 |
| Marine and Fisheries Management Solutions Ltd | Professional & scientific | 2022 |
| Mariners Way Newquay Management Company Limited | Real estate | 2025 |
| Marlam Construction Ltd | Construction | 2022 |
| Marlam Properties Ltd | Real estate | 2025 |
| Martin Property Homes Ltd | Real estate | 2021 |
| Matthew Reid Limited | Administrative & support | 2018 |
| MB Trading Solutions Ltd | Wholesale & retail | 2025 |
| MD Pools & Leisure Ltd | Hospitality | 2026 |
| Memh Management Company Limited | Other services | 2025 |
| Mendology Commercial Doors Limited | Construction | 2007 |
| Metalcor Recycling Ltd | Water & waste | 2025 |
| Miles Marine Engineering Design Limited | Professional & scientific | 2005 |
| MLD Property Limited | Construction | 2017 |
| MM Structural Detailing Ltd | Professional & scientific | 2016 |
| Mobile Machine Services Limited | Wholesale & retail | 2023 |
| Moen Homes Ltd | Construction | 2006 |
| Moonbugs Property Ltd | Households | 2023 |
| Moorland Stone Ltd | Construction | 2022 |
| Morningwood Developments Limited | Real estate | 2005 |
| Mousehole Holidays Limited | Real estate | 2018 |
| MPL Environmental Limited | Professional & scientific | 2008 |
| MRJ Callington Limited | Hospitality | 2023 |
| MUR Trading Ltd | Wholesale & retail | 2025 |
| Mussel Boards Limited | Arts & recreation | 2015 |
| Mytortoise Holdings Limited | Real estate | 2022 |
| Nautik Ltd | Construction | 2014 |
| Neptune Shipping Agency Limited | Transport & logistics | 1957 |
| New Quay Harbour Limited | Construction | 2013 |
| New Witheven Care Limited | Health & social care | 2020 |
| North Coast Physio Group Limited | Other services | 2026 |
| Northcote Incorporated Engineers Ltd | Public administration | 2009 |
| Npvdiagnostics Ltd | Professional & scientific | 2022 |
| NRS Electrical Engineers Limited | Energy | 2014 |
| NRS Transport Ltd | Transport & logistics | 2014 |
| O.S.M.F. Limited | Households | 1998 |
| Oakora Ltd | Information & communication | 2017 |
| OH My Interiors Ltd | Wholesale & retail | 2025 |
| Oltco Limited | Construction | 2004 |
| Olver Electrical Contractors Limited | Construction | 1999 |
| ON Target Outdoor Ltd | Arts & recreation | 2025 |
| Open Food Network U.K. Community Interest Company | Information & communication | 2015 |
| Optimal Motorsport Track Days Ltd | Arts & recreation | 2025 |
| Oracle Energy Ltd | Construction | 2014 |
| Orchid Freelance Limited | Wholesale & retail | 2015 |
| Origami SME LLP | | 2010 |
| Orik Hind Limited | Manufacturing | 2014 |
| P J & L Alford Limited | Agriculture & fishing | 2012 |
| Panda Callington Limited | Hospitality | 2023 |
| Parklife South West CIC | Professional & scientific | 2019 |
| Parkwood Cars Ltd | Wholesale & retail | 2022 |
| Patrick Newberry Ltd | Professional & scientific | 2014 |
| Peak Recruit Solutions Limited | Administrative & support | 2023 |
| Pearson Safety & Training Limited | Construction | 2014 |
| Peck Trading Ltd | Wholesale & retail | 2011 |
| Pengelly Garage (SW) Limited | Wholesale & retail | 2013 |
| Peninsula Farm Health Limited | Extraterritorial | 2011 |
| Penmoor Nursery Ltd | Health & social care | 2023 |
| Perfect Pawtions Ltd | Wholesale & retail | 2019 |
| Petroc Court Developments Limited | Real estate | 2008 |
| Pharmalynx Ltd | Professional & scientific | 2014 |
| Phase Design and Build Ltd | Construction | 2024 |
| Phoenix Property Management Cornwall Ltd | Administrative & support | 2025 |
| Phoenix Spice Catering Solutions Limited | Hospitality | 2016 |
| Pilgrims Way Residents Management Company Ltd | Households | 2024 |
| Pinnacle Service Centre Limited | Wholesale & retail | 2025 |
| Pitch Ventures Ltd | Construction | 2021 |
| Plymouth City Nets Limited | Wholesale & retail | 2003 |
| Plymouth Garage Doors Limited | Construction | 2023 |
| PMC Holdings SW Limited | Manufacturing | 2019 |
| POP UP Nature Community Interest Company | Education | 2020 |
| Premises Performance Partnership Limited | Professional & scientific | 2006 |