| Langdon HR & Compliance Ltd | Administrative & support | 2026 |
| Langdon Works Ltd | Financial services | 2026 |
| Lasting Life International Ltd | Administrative & support | 2018 |
| Law Brief Publishing Limited | Information & communication | 2006 |
| LBH (South West) Limited | Agriculture & fishing | 2020 |
| LEO Davey Artist Ltd | Arts & recreation | 2023 |
| Lewis Analysis Limited | Information & communication | 2012 |
| Ley-Lines.Com Limited | Information & communication | 2000 |
| Libellula Limited | Hospitality | 2017 |
| Lillycombe Sporting Club Limited | Agriculture & fishing | 2017 |
| Lime Works Construction Ltd | Construction | 2024 |
| Lofts Construction Limited | Construction | 2024 |
| London West Capital Limited | Financial services | 2020 |
| London West Property Consultancy Limited | Other services | 2012 |
| Looks Direct Limited | Wholesale & retail | 1999 |
| Loopians Ltd | Information & communication | 2024 |
| Louise Crossman Architects Limited | Professional & scientific | 2006 |
| Louise Crossman Architects Trustee Limited | Administrative & support | 2022 |
| Loxhole Ltd | Wholesale & retail | 2015 |
| Lukas Heating Ltd | Construction | 2021 |
| Lumident Ltd | Health & social care | 2025 |
| Lynham M.R. Services Limited | Wholesale & retail | 2009 |
| Lyntha Management Company Limited | Real estate | 1999 |
| M Smith Consulting Limited | Information & communication | 2011 |
| Magnum Blinds & Awnings Limited | Wholesale & retail | 2014 |
| Maitland Walker LLP | | 2010 |
| Maitmour Buck Limited | Real estate | 1988 |
| Maitmour Limited | Real estate | 1987 |
| Manor From Heaven Ltd | Water & waste | 2025 |
| Mansfield Buchanan Ltd | Professional & scientific | 2004 |
| Marine Pro Academy Ltd | Education | 2025 |
| Marston Lodge Limited | Hospitality | 2004 |
| Matc Holdings Limited | Professional & scientific | 2019 |
| Matravers Plant Hire Ltd | Administrative & support | 2014 |
| MDS Project Management Ltd | Construction | 2021 |
| MDS Project Properties Ltd | Real estate | 2024 |
| Mediumship Plus Limited | Other services | 2025 |
| Mellory Limited | Real estate | 2015 |
| Melodiam Limited | Information & communication | 2014 |
| MG Langdon Builders Ltd | Construction | 2026 |
| MG Project Management (Civils) Ltd | Professional & scientific | 2017 |
| Mhpf (UK) Ltd | Agriculture & fishing | 2016 |
| MIA Elif Ltd | Hospitality | 2023 |
| Mimi Art Productions Ltd | Wholesale & retail | 2013 |
| Minehead and West Somerset Golf Club Limited | Hospitality | 2022 |
| Minehead EYE Community Interest Company | Arts & recreation | 2006 |
| Minehead Masonic Hall Company Limited(The) | Real estate | 1894 |
| Minehead Motor Club Limited | Arts & recreation | 1990 |
| Minehead Pump Track CIC | Arts & recreation | 2025 |
| Minehead Radio Limited | Wholesale & retail | 1962 |
| Minehead Radiovision Rentals Limited | Extraterritorial | 1964 |
| MK Performance Roofing Limited | Construction | 2006 |
| Mobile Air Traffic Control Systems Limited | Manufacturing | 2006 |
| Mobile Integrated Solutions Limited | Professional & scientific | 2014 |
| Moor Cottages Ltd | Real estate | 2023 |
| Moor Outdoor CIC | Education | 2024 |
| Mount Pleasant (Watchet) Management Company Limited | Households | 1981 |
| Mount Royal Residents' Company Limited | Households | 1988 |
| MPG Land Consultancy Southwest Limited | Real estate | 2023 |
| MR H Barber Shop Limited | Other services | 2018 |
| National Livestock Management Database Limited | Agriculture & fishing | 2004 |
| Navy Pier Ltd | Wholesale & retail | 2025 |
| Nehemiah Group Limited | Real estate | 2018 |
| Neil Arnold Tyres Limited | Wholesale & retail | 2007 |
| Ngmk Ltd | Hospitality | 2022 |
| Nicholls & Sons Plumbing and Heating Ltd | Construction | 2015 |
| Nigel Jones Property Services Limited | Construction | 2007 |
| Nile Street Ltd | Information & communication | 2024 |
| Nolli 15 Ltd | Arts & recreation | 2013 |
| Nomadicount LLP | | 2011 |
| Norris Charles Limited | Information & communication | 2008 |
| North Road Mews (Minehead) Limited | Households | 1997 |
| Number 1 Gymnastics Club CIC | Education | 2022 |
| Number 1 West Somerset Ltd | Arts & recreation | 2023 |
| O & T Enterprises Ltd | Hospitality | 2022 |
| Old Cleeve House Limited | Real estate | 1992 |
| Oldfield & Langdon Plumbing & Heating Ltd | Construction | 2025 |
| One to Conquer Limited | Other services | 2019 |
| Orchard Rise (Doverhay) Management Limited | Households | 1983 |
| Oschapel Limited | Wholesale & retail | 2021 |
| Outdoors and Overland Ltd | Hospitality | 2025 |
| Overall Cleaning Services Limited | Households | 2002 |
| Overseas Education Partners Limited | Professional & scientific | 2005 |
| P D & E Enterprises Ltd | Hospitality | 2026 |
| Paint the Town Ltd | Construction | 2019 |
| Park Avenue Food Court Ltd | Wholesale & retail | 2019 |
| Parks Lane Construction Limited | Construction | 2012 |
| PD Publishing Ltd | Wholesale & retail | 2021 |
| PDN Probate & Estate Administration Ltd | Professional & scientific | 2021 |
| Phoenix Property Renovations Ltd | Construction | 2025 |
| Phone Central Limited | Wholesale & retail | 2017 |
| Picketstones Limited | Real estate | 2010 |
| Plain & Proper Ltd | Wholesale & retail | 2025 |
| Plumvis Properties Ltd | Real estate | 2022 |
| Pmqs Ltd | Construction | 2015 |
| PNC01 Limited | Wholesale & retail | 2024 |
| Poikile Ltd | Professional & scientific | 2009 |
| Poppins Children's Community Project CIC | Wholesale & retail | 2021 |
| Porlock Garage Ltd | Manufacturing | 2022 |
| Porlock Vale CIC | Other services | 2022 |