| Loheat Limited | Manufacturing | 1994 |
| Lotus Wellbeing Hypnotherapy & Coaching Ltd | Health & social care | 2023 |
| Lower Farmhouse Management Company Limited | Households | 1992 |
| Lupton Wine Limited | Wholesale & retail | 2012 |
| M E Lindsay Limited | Information & communication | 2024 |
| M Edwards Brickwork Ltd | Construction | 2006 |
| Macks Technologies Ltd | Information & communication | 2026 |
| Made in the Pewsey Vale Ltd | Wholesale & retail | 2024 |
| Mailing Solutions Limited | | 1992 |
| Malin Limited | Manufacturing | 1995 |
| Maltin Sales Ltd | Wholesale & retail | 2024 |
| Mamaboushka Ltd | Wholesale & retail | 1987 |
| Manor Farm Wilcot Ltd | Professional & scientific | 2012 |
| Mark Logue Limited | Professional & scientific | 2005 |
| Mark Spanswick Plumbing and Heating Limited | Construction | 2004 |
| Marshalls Bakery Limited | Manufacturing | 2011 |
| Martin Middleton Holdings Limited | Real estate | 1964 |
| Martinsell Publishing Company Limited | Information & communication | 2011 |
| MB Farrell Limited | Transport & logistics | 2024 |
| Mellitus Ltd | Hospitality | 2019 |
| Merlin Contract Services Ltd | Administrative & support | 2023 |
| Middlemass Mews Limited | Households | 2014 |
| Milk Hill Consulting LLP | | 2021 |
| Milton Accounting Limited | Professional & scientific | 2012 |
| Milton Hill Farming Limited | Agriculture & fishing | 1998 |
| Mind Supplements Ltd | Wholesale & retail | 2024 |
| Miwin Solutions Ltd | Information & communication | 2010 |
| MLP Lifestyle Properties Ltd | Real estate | 2023 |
| Modini Limited | Manufacturing | 2016 |
| MOO 2 YOO Ltd | Hospitality | 2019 |
| Moonraker (Pewsey) Limited | Real estate | 2005 |
| MR Pape Ltd | Information & communication | 2017 |
| Mskg Ltd | Administrative & support | 2012 |
| N E Wheeler Ltd | Administrative & support | 2018 |
| Natural Resource Beneficiation Limited | Professional & scientific | 2019 |
| Near ME Searches UK Limited | Administrative & support | 2024 |
| Neijing Acupuncture Limited | Health & social care | 2020 |
| Nemesis Mindset Ltd | Education | 2020 |
| Nicholson Bond Partnership Limited | Financial services | 2015 |
| Nicole Jordan Ltd | Extraterritorial | 2022 |
| Nirb Consulting Limited | Professional & scientific | 2008 |
| NK Omni Services Limited | Construction | 2020 |
| NOW Here Press Ltd | Information & communication | 2026 |
| Nuruum Ltd | Real estate | 2021 |
| OH Added Value Consulting Ltd | Professional & scientific | 2022 |
| Old Ford Court (Management) Limited | Households | 1998 |
| Original Focus Limited | Extraterritorial | 2006 |
| Osmosis Limited | Professional & scientific | 2004 |
| P2P AI Consultancy Ltd | Professional & scientific | 2025 |
| Paladin Strategic Security Ltd | Information & communication | 2026 |
| Parr Trading Ltd. | Wholesale & retail | 2005 |
| Patrick Wilson Architects Limited | Professional & scientific | 2010 |
| Paul Woodgates Limited | Professional & scientific | 2024 |
| PC Doctor Dave Limited | Information & communication | 2013 |
| Perde Limited | Real estate | 2022 |
| Pet Waste Warriors Ltd | Water & waste | 2025 |
| Pewsey Heritage Centre | Arts & recreation | 2010 |
| Pewsey Meadows Management Limited | Households | 1986 |
| Pewsey Oral Health Care Ltd | Health & social care | 2018 |
| Pewsey Oral Practice Limited | Extraterritorial | 2012 |
| Pewsey Properties Limited | Real estate | 2020 |
| Pewsey Trading Company Limited | Wholesale & retail | 2002 |
| Pewsey Tyre and Auto Centre Limited | Wholesale & retail | 2008 |
| Pewsey Vale Coaches Limited | Transport & logistics | 2006 |
| Pewsey Vale Community Crafts and Tea Rooms | Hospitality | 1993 |
| Pewsey Vale Rugby Football Club Ltd | Arts & recreation | 2009 |
| Pewsey Vehicle Multiworks Limited | Wholesale & retail | 2009 |
| Picon Limited | Other services | 1969 |
| Piers Hampton Ltd | Other services | 2022 |
| Plant & Quarry Services Limited | Administrative & support | 2002 |
| Poetic Soup Limited | Arts & recreation | 1998 |
| Polcliff Limited | Other services | 1997 |
| Portstoken Limited | Construction | 2009 |
| Positive Community Action CIC | Hospitality | 2022 |
| Pristine Quality Services Limited | Administrative & support | 2025 |
| Professional Woodworkers Limited | Administrative & support | 1987 |
| Proto Glass Studios Limited | Manufacturing | 2022 |
| Proto Properties Limited | Real estate | 2011 |
| Proto Studios Limited | Manufacturing | 2000 |
| Puddleducks Nursery and Pre-School | Health & social care | 2012 |
| Puma Consulting Limited | Professional & scientific | 2025 |
| Pure Pastures Limited | Agriculture & fishing | 2010 |
| PWH Developments Ltd | Real estate | 2023 |
| Qros Limited | Professional & scientific | 2004 |
| Quantum Resonance Technologies Limited | Professional & scientific | 2023 |
| Quick U.K. Limited | Wholesale & retail | 1982 |
| R G Builders Wilts Limited | Construction | 2024 |
| Rail Asset Management Solutions Ltd | Professional & scientific | 2023 |
| Rapidalert Ltd | Information & communication | 2017 |
| Raven Scores Limited | Information & communication | 2018 |
| Ravens Point Limited | Education | 2018 |
| Rawlingson Lane Publicity (Holdings) Limited | Professional & scientific | 2014 |
| Red Kite Taverns Ltd | Hospitality | 2016 |
| RED2GREEN Group Limited | Education | 2025 |
| Resin Heat Ltd | Professional & scientific | 2025 |
| Ridgeway Press Limited | Manufacturing | 1988 |
| River City Judgement Index UK Ltd | Professional & scientific | 2008 |
| Riverside Court Developments Ltd | Construction | 2025 |
| Roadside Farm Management Limited | Professional & scientific | 2007 |
| Rupert Tate Consulting Ltd | Professional & scientific | 2025 |