| Mazard Tree Consulting Limited | Professional & scientific | 2024 |
| Mcwilliams Engineering Limited | Manufacturing | 2003 |
| MEDSERV8 Ltd | Health & social care | 2022 |
| MH Pantry Limited | Manufacturing | 2016 |
| Michael Adey Property Ltd | Real estate | 2021 |
| Millhurst Ltd | Wholesale & retail | 2017 |
| Mire Systems Ltd | Professional & scientific | 2025 |
| MKB Home Maintenance Services Ltd | Construction | 2024 |
| Mole Country Stores Ltd | Extraterritorial | 2010 |
| Mole Energy Limited | Energy | 2010 |
| Mole Energy Switching Limited | Energy | 2017 |
| Mole Trading Limited | Extraterritorial | 2012 |
| Mole Valley Farmers Limited | Manufacturing | 1961 |
| Mole Valley Feed Solutions Ltd | Manufacturing | 2004 |
| Mole Valley Financial Services Ltd | Extraterritorial | 2012 |
| Mole Valley Forage Services Limited | Manufacturing | 2006 |
| Mole Valley Wholesale Limited | Extraterritorial | 2009 |
| Molecare Veterinary Services Limited | Professional & scientific | 2009 |
| Molland House Limited | Hospitality | 2018 |
| Molton Management Ltd | Real estate | 2019 |
| Molton Media Limited | Professional & scientific | 2023 |
| Molton Tiger Limited | Hospitality | 2025 |
| Moroc Surf Limited | Administrative & support | 2012 |
| Morrish Sisters Ltd | Professional & scientific | 2015 |
| Mounticombe Farm Ltd | Agriculture & fishing | 2010 |
| MTS Trade Supplies Limited | Wholesale & retail | 2021 |
| MVF Trading Ltd | Energy | 2020 |
| My Vetloyal Limited | Manufacturing | 2024 |
| N.Packwood Limited | Real estate | 1947 |
| Nadder Meadow (19,20 & 21) Company Limited | Households | 2008 |
| Nancekivell & Co Ltd | Real estate | 2005 |
| Neptune Glassfibre Mouldings Limited | Manufacturing | 2003 |
| New Leads Marketing Ltd | Information & communication | 2010 |
| Nicholas Barrow Associates Ltd | Health & social care | 2023 |
| Nick Theobald Design Ltd | Information & communication | 2021 |
| Nikki's Attic Limited | Wholesale & retail | 2019 |
| North Devon Agricultural Society | Administrative & support | 1998 |
| North Devon Enterprises Ltd | Wholesale & retail | 2012 |
| North Hayne Farm Cottages Ltd | Hospitality | 2004 |
| North Shore Developments Limited | Real estate | 2004 |
| Northshore Timber Frame Design Limited | Professional & scientific | 2008 |
| NOS DA Event Hire Ltd | Hospitality | 2025 |
| Noutaz Stud LLP | | 2025 |
| Oakfields Horticulture Limited | Wholesale & retail | 2024 |
| Oakwood Farming Ltd | Agriculture & fishing | 2025 |
| Ocean Shade Canopies & Awnings Limited | Manufacturing | 2013 |
| Old Folding Maps Ltd | Wholesale & retail | 2003 |
| Old Sheep Ltd | Financial services | 2016 |
| Omega (Roofing) Plastics Limited | Wholesale & retail | 2005 |
| Omnidrive Limited | Transport & logistics | 2018 |
| ON Point Moto Ltd | Wholesale & retail | 2024 |
| Onsplek & Company Ltd | Hospitality | 2021 |
| Ontrak Holdings Limited | Financial services | 2026 |
| Ontrak Solar Limited | Agriculture & fishing | 2026 |
| P.A.V Complete Scaffolding Ltd | Construction | 2022 |
| Pagoda WOK Ltd | Hospitality | 2020 |
| Parker Acoustics Ltd | Professional & scientific | 2021 |
| Paul Bancroft Limited | Agriculture & fishing | 2014 |
| Paul Hand Tennis Consultancy Limited | Arts & recreation | 2013 |
| Paul Thorne Ltd. | Manufacturing | 2014 |
| Pdrc Holdings Ltd | Agriculture & fishing | 1997 |
| Pearlcrew Limited | Wholesale & retail | 1977 |
| Peninsula Access Ltd. | Construction | 2014 |
| Perry Resources Limited | Administrative & support | 2012 |
| Peter Stucley Limited | Real estate | 2008 |
| Pinnacle Vapes Ltd | Wholesale & retail | 2024 |
| PJ Euro Products Limited | Professional & scientific | 2023 |
| PJ Gear Fencing Ltd | Construction | 2023 |
| Plane & Sanded Limited | Manufacturing | 2020 |
| Portia Financial Solutions Limited | Professional & scientific | 2016 |
| Positive Heat Limited | Construction | 2024 |
| Precision Autos Ltd | Wholesale & retail | 2022 |
| Prestglade Property Management Limited | Households | 1998 |
| Printworkx Limited | Administrative & support | 2010 |
| Pro-Sail Limited | Manufacturing | 2001 |
| Project (SW) Ltd | Professional & scientific | 2010 |
| Pure Power Solar Ltd | Energy | 2023 |
| Purple Pixies Ltd | Health & social care | 2015 |
| Putsborough Beach Shop Limited | Wholesale & retail | 2006 |
| R S C Plant and Advisory Ltd | Construction | 2020 |
| RAM Pack UK Limited | Wholesale & retail | 2004 |
| RC Residential Property Limited | Real estate | 2016 |
| RCN Risk Management Resource Limited | Professional & scientific | 2015 |
| RE - Volition Community Interest Company | Wholesale & retail | 2022 |
| RE Consultancy & Training Limited | Public administration | 2012 |
| Repson Timber Limited | Wholesale & retail | 2017 |
| Resoil Ltd | Agriculture & fishing | 2026 |
| RH Surface Designs Ltd | Construction | 2024 |
| Rhodevale Management Limited | Real estate | 1987 |
| Richard Gray Building Services Limited | Construction | 2001 |
| Riverside Caravan Park (Devon) Limited | Hospitality | 2004 |
| Riverside Caravan Storage Limited | Transport & logistics | 2008 |
| RJC Farming Limited | Agriculture & fishing | 2025 |
| Rock & Rapid Adventures Limited | Arts & recreation | 2008 |
| Rock and Rapid Training Ltd | Education | 2019 |
| Roseford Ltd | Wholesale & retail | 2022 |
| Roses Holidays Limited | Hospitality | 2019 |
| Round Town Holdings Limited | Financial services | 2023 |
| Rowan Oak Timber Framing Ltd | Construction | 2025 |
| Ruby (SW) Ltd | Wholesale & retail | 2013 |