| Midlands Trials Car Club Limited | Arts & recreation | 2016 |
| Millers Plumbing and Heating (SW) Ltd | Construction | 2022 |
| Mirus Projects Limited | Administrative & support | 2009 |
| Misterton Garage Limited | Wholesale & retail | 2018 |
| MJL Construction Management Ltd | Construction | 2018 |
| Msdilo Ltd | Wholesale & retail | 2020 |
| N Patten - Building & Carpentry Ltd | Construction | 2025 |
| Nascent VEK Consulting Ltd | Professional & scientific | 2013 |
| Nascent VEK Productions Limited | Arts & recreation | 2017 |
| Natural Waterscapes Ltd | Administrative & support | 2019 |
| Nature Units Limited | Professional & scientific | 2025 |
| New Fifty Eight UK Holdings Limited | Information & communication | 2023 |
| Nicky Llewellyn Flowers Limited | Other services | 2003 |
| North Down Orchard Ltd | Manufacturing | 2019 |
| North Star Storage Ltd | Transport & logistics | 2018 |
| Nova Aurum Ltd | Wholesale & retail | 2026 |
| Nuage Bleu Ltd | Administrative & support | 2016 |
| Nzante’S Clear EAR Solutions Ltd | Health & social care | 2024 |
| Oblong Live Limited | Information & communication | 2005 |
| Oblong Tech Limited | Information & communication | 2004 |
| OLA Engineering Ltd | Professional & scientific | 2018 |
| Old Skool Garage Ltd | Wholesale & retail | 2023 |
| Oliver Parsons Consulting Limited | Professional & scientific | 2025 |
| Omlu Ltd | Information & communication | 2026 |
| ON the Piazza Ltd | Hospitality | 2025 |
| ON Track Investments Ltd | Extraterritorial | 2017 |
| Orchard Camping Ltd | Hospitality | 2024 |
| Paddocks Farm Partnership Holdings Limited | Financial services | 2014 |
| Paddocks Farm Partnership Ltd | Wholesale & retail | 2005 |
| Paradoc Limited | Wholesale & retail | 2018 |
| Partridge Consultants Ltd | Wholesale & retail | 2021 |
| PAS Catering Ltd | Hospitality | 2018 |
| Pattemore's Transport (Crewkerne) Limited | Manufacturing | 1959 |
| Pattemores Transport (Holdings) Limited | Financial services | 2021 |
| Paul Crabbe Heating and Plumbing Ltd | Construction | 2017 |
| Pawsome FUN Paddock Ltd | Other services | 2022 |
| Pedredan Trustee Company | Professional & scientific | 1965 |
| Peerglow Properties Limited | Real estate | 1994 |
| Percival Devon Estates Ltd. | Hospitality | 2015 |
| Perfectly Formed Songs Ltd | Information & communication | 2008 |
| Perkai Limited | Information & communication | 2017 |
| Perrott Consulting Limited | Professional & scientific | 2015 |
| Perrott Hill School Ltd | Education | 2020 |
| Perry's Bridge Farm Limited | Agriculture & fishing | 2006 |
| PGS Interiors Limited | Construction | 2008 |
| Piling Operators Holdings Ltd | Financial services | 2024 |
| Piling Operators Ltd | Construction | 2010 |
| Playbrave Limited | Administrative & support | 2016 |
| PR Finance and Development Limited | Professional & scientific | 2008 |
| Prenn Products Limited | Wholesale & retail | 1946 |
| Prestige Global Commerce Ltd | Wholesale & retail | 2025 |
| Private Dental Mentor Limited | Administrative & support | 2023 |
| Property Maintenance SW Ltd | Construction | 2025 |
| Prtl WRX Ltd | Wholesale & retail | 2023 |
| Quantum Renewable Solutions Ltd | Construction | 2024 |
| Rategrove Limited | Financial services | 1975 |
| Recycle Roots Ltd | Professional & scientific | 2024 |
| Red Engine Creative Labs Limited | Information & communication | 2012 |
| RGM Limited | Professional & scientific | 2024 |
| Richard Keylock Accountancy Ltd | Professional & scientific | 2003 |
| Richmel Limited | Real estate | 2002 |
| Ripple 360 Limited | Information & communication | 2025 |
| Risk Engineering Solutions Limited | Administrative & support | 2005 |
| Rivermead Recovery Limited | Other services | 2007 |
| ROB Malton Limited | Construction | 2004 |
| Robert C Smith Limited | Administrative & support | 2026 |
| Salto Experiences Ltd | Professional & scientific | 2026 |
| Saltwater Trading Ltd | Wholesale & retail | 2018 |
| Salty Boat Company Ltd | Manufacturing | 2020 |
| SAM Best Abodes Ltd | Households | 2024 |
| Sandbay Solar Limited | Energy | 2022 |
| Sanderson Jewellers Ltd | Wholesale & retail | 2022 |
| Sanne Holdings LLP | | 2017 |
| Screwed-On Engineering Limited | Manufacturing | 2008 |
| Service International Limited | Information & communication | 2019 |
| SGS Construction South West Limited | Construction | 2018 |
| Sherborne Brewery Limited | Manufacturing | 1997 |
| Sherborne Brewing Company Limited | Professional & scientific | 2005 |
| Shieldacre Limited | Professional & scientific | 2003 |
| Shopto Sur.Uk Limited | Hospitality | 2017 |
| Singleton Engineering Holdings Limited | Professional & scientific | 2018 |
| Skyhigh Construction (SW) Ltd | Construction | 2012 |
| Solar South West Limited | Energy | 2022 |
| Somerset Farm Limited | Agriculture & fishing | 2016 |
| South Coast Support Ltd | Health & social care | 2021 |
| South Somerset Music CIC | Education | 2025 |
| Southern Sands Alpacas Limited | Agriculture & fishing | 2020 |
| Southwest Ortho Ltd | Health & social care | 2024 |
| Squarecomp Ltd | Information & communication | 2025 |
| SSW Developments Limited | Energy | 2020 |
| Sswuk Limited | Construction | 2010 |
| Stag and Apple Limited | Construction | 2019 |
| Steve Sivell Financial Services Limited | Administrative & support | 2011 |
| Stitch & Turn UK Ltd | Manufacturing | 2015 |
| Storage Solutions Southern Ltd | Transport & logistics | 2016 |
| Straw Trading Ltd | Hospitality | 2017 |
| Summit Solar Ltd | Construction | 2024 |
| Sunflower Business Consultancy Ltd | Professional & scientific | 2025 |
| Sureway Removals Limited | Transport & logistics | 1996 |
| Sureways of Weymouth Limited | Real estate | 2014 |