| Metcombe Consulting Ltd | Professional & scientific | 2020 |
| Meweas Ltd | Other services | 2018 |
| MG & KL Associates Limited | Health & social care | 2016 |
| Milton Engineering (Exeter) Limited | Professional & scientific | 2014 |
| Mint Global Solutions Ltd | Information & communication | 2022 |
| Montague House Management Company (Exmouth) Limited | Households | 1974 |
| Moorlander Consulting Limited | Professional & scientific | 2020 |
| Moorlander Services Limited | Professional & scientific | 2024 |
| Morecamble Ltd | Other services | 2018 |
| Mr&K Co. Ltd | Wholesale & retail | 2020 |
| MSK Software Ltd | Information & communication | 2025 |
| Nagata Ltd | Real estate | 2020 |
| Neil Franks Maintenance Solutions Ltd | Construction | 2015 |
| Neuro Physio Works Limited | Health & social care | 2013 |
| Neutrino Contracting Ltd | Other services | 2018 |
| NOT Rick Limited | Wholesale & retail | 2023 |
| Oak Tree Innovation Ltd | Professional & scientific | 2013 |
| Octapressy Printing Ltd | Arts & recreation | 2020 |
| Omidvar Trading Ltd | Wholesale & retail | 2024 |
| ON Target Accounting Ltd | Professional & scientific | 2021 |
| Opal Risings Ltd | Administrative & support | 2026 |
| Opratim Ltd | Other services | 2018 |
| Osprey Talent Solutions Ltd | Administrative & support | 2025 |
| Osteo and Physio Honiton Ltd | Other services | 2022 |
| Osteo and Physio Ltd | Health & social care | 2009 |
| Otter Car Detailing Ltd | Administrative & support | 2025 |
| Otter Engineering Limited | Professional & scientific | 2015 |
| Otter Financial Services Limited | Administrative & support | 1998 |
| Otters Holt Members Company Limited | Real estate | 2018 |
| Ottery Gazette Limited | Information & communication | 2017 |
| Ottery Help Scheme | Health & social care | 2013 |
| Outile Ltd | Other services | 2019 |
| P.J. Atherton (Surveying) Limited | Professional & scientific | 2000 |
| Paggle Limited | Real estate | 2016 |
| Paleocy Ltd | Other services | 2019 |
| Palfrey Design Ltd | Professional & scientific | 2006 |
| Panda Badger Productions Ltd | Arts & recreation | 2017 |
| Papadom Restaurant Ltd | Hospitality | 2025 |
| Pear Bear Ltd | Professional & scientific | 2024 |
| PECO2C Limited | Professional & scientific | 2023 |
| Penfield Construction Limited | Administrative & support | 2019 |
| Peter Hutchings Limited | Transport & logistics | 2008 |
| Pett Software Limited | Information & communication | 2014 |
| PGQ Property Consulting Ltd | Construction | 2022 |
| PMP Industries Limited | Professional & scientific | 2013 |
| Portwale Ltd | Other services | 2018 |
| PPP Trading Management Limited | Professional & scientific | 2008 |
| Primary Sports & Education Limited | Arts & recreation | 2010 |
| Private Plate King Ltd | Wholesale & retail | 2019 |
| Purple Piano Productions Ltd | Information & communication | 2019 |
| PW Hospitality Ltd | Hospitality | 2014 |
| Quested Monitoring Systems Limited | Manufacturing | 1985 |
| R & a Carpentry Ltd | Construction | 2014 |
| Race Car Experiences Limited | Arts & recreation | 2023 |
| Raeisiangold Group Ltd | Wholesale & retail | 2023 |
| RAID93 Ltd | Wholesale & retail | 2023 |
| Rain Commercial Ltd | Information & communication | 2022 |
| Rain Open Source Software Ltd | Information & communication | 2022 |
| Ratitea Ltd | Transport & logistics | 2014 |
| REACH22 Limited | Professional & scientific | 2006 |
| Really Active Limited | Professional & scientific | 2007 |
| Red Squirrel South West Project Limited | Agriculture & fishing | 2010 |
| Redferns Holdings Limited | Financial services | 2021 |
| Redtext Ltd | Professional & scientific | 2020 |
| Regenerate Property Ltd | Real estate | 2018 |
| Regis Court 2001 (Sidmouth) Management Company Limited | Households | 2001 |
| Renfrew HMO Ltd | Real estate | 2026 |
| Richard Long Consulting Ltd | Professional & scientific | 2025 |
| Richards Trading Group Ltd | Wholesale & retail | 2026 |
| Rich’S K9 Security Ltd | Administrative & support | 2025 |
| Rmote Health Ltd | Health & social care | 2025 |
| S & S Lifestyle Ltd | Wholesale & retail | 2014 |
| S.L. Cather Limited | Health & social care | 2002 |
| S.S.E.R. Ltd. | Information & communication | 1996 |
| Salcombe Garden Company Ltd | Administrative & support | 2022 |
| Salston Farms Limited | Agriculture & fishing | 2017 |
| Sarpy Ltd | Other services | 2018 |
| Seabrook Marketing Limited | Professional & scientific | 2006 |
| Sidfordhomes Ltd | Real estate | 2025 |
| Simply Herbs Workers Co-Operative Limited | Agriculture & fishing | 1998 |
| SJF Accounts Ltd | Professional & scientific | 2022 |
| Sound Mixer Limited | Information & communication | 2016 |
| Souvlaki Nick the Greek Ltd | Administrative & support | 2020 |
| Sparkwell and Shaugh Prior Community Interest Company | Professional & scientific | 2017 |
| Spring Life Home & Garden Ltd | Wholesale & retail | 2014 |
| ST. Martins Court Sidmouth Management Company Limited | Households | 1991 |
| Stafford Jaggles Limited | Wholesale & retail | 2018 |
| STOP2CHANGE Limited | Transport & logistics | 2012 |
| Streamline Lettings Limited | Real estate | 2020 |
| Streamline Properties Limited | Real estate | 2017 |
| Studio LEA Ltd | Professional & scientific | 2024 |
| Sustainability Advisory Limited | Professional & scientific | 2026 |
| Taxworld Financial Ltd | Professional & scientific | 2002 |
| Technocloud Software Ltd | Information & communication | 2013 |
| THE Bearded Badger PUB Company Limited | Hospitality | 2018 |
| THE Coast and Country Club Limited | Hospitality | 2025 |
| THE Eco Boutique Ltd | Wholesale & retail | 2020 |
| THE King's School Ottery ST Mary | Education | 2011 |
| THE Laurels (Sidmouth) Management Limited | Households | 1989 |
| THE Leaderpath Limited | Administrative & support | 2017 |