| Smith and Woodcock Builders Ltd | Construction | 2023 |
| Smithfield Development Ltd | Construction | 2023 |
| Smooth Property Development Limited | Real estate | 2015 |
| Smugglers Property Group Ltd | Construction | 2018 |
| Snoozel Ltd | Wholesale & retail | 2018 |
| Solomon Theatre Company Limited | Administrative & support | 2018 |
| Songlines Management Company Limited | Households | 2014 |
| SOS Trading Ltd | Financial services | 2024 |
| South Devon Diesel Traction Limited | Manufacturing | 1999 |
| South Devon Optical Co. Limited | Health & social care | 1973 |
| South Devon Taxation Services Limited | Extraterritorial | 1999 |
| South Devon Windscreens Ltd | Wholesale & retail | 2025 |
| South West Commercial Flooring Ltd | Construction | 2019 |
| South West Fight Events Limited | Arts & recreation | 2023 |
| South West Holiday Parks Limited | Professional & scientific | 2011 |
| Southern Maintenance Holdings Ltd | Financial services | 2025 |
| Southern Maintenance Ltd | Professional & scientific | 2012 |
| Southwest Pressure Cleans Limited | Administrative & support | 2025 |
| Sova PDL Club Ltd | Wholesale & retail | 2025 |
| SP Controls Ltd | Construction | 2014 |
| Spartan Works Ltd | Construction | 2026 |
| Speed of Sound Coaching Ltd | Other services | 2022 |
| Spiders and Milk Digital Ltd | Professional & scientific | 2006 |
| Sses Property Services Ltd | Construction | 2020 |
| SSL Marketing Limited | Professional & scientific | 2003 |
| ST Marks Property Management Company Limited | Households | 2023 |
| ST Mary Magdalen Close Limited | Water & waste | 2011 |
| ST. Scholastica's Management Company Limited | Households | 1992 |
| Starkey Creative Limited | Professional & scientific | 2007 |
| Stellar Corp Enterprise Ltd | Wholesale & retail | 2025 |
| Stenner Evans Consulting Limited | Professional & scientific | 2020 |
| Sterlingrowth Enterprises Limited | Hospitality | 1994 |
| Steve Grogan Limited | Information & communication | 2013 |
| Steve Little Logistics Limited | Transport & logistics | 2021 |
| Stevens Glass & Glazing Ltd | Construction | 2004 |
| Stir Crazy Drinks Ltd | Wholesale & retail | 2020 |
| Stochastic Instruments Ltd | Manufacturing | 2021 |
| Stonelands Capital Advisors Ltd | Other services | 2023 |
| Stonelands Spring Water Ltd | Water & waste | 2013 |
| Strimmer Limited | Professional & scientific | 2021 |
| Studio Twenty Two Reformer & Wellness Ltd | Arts & recreation | 2025 |
| Sun Spark Solar Ltd | Construction | 2025 |
| Supawash Ltd | Other services | 2024 |
| Sureslot Property Management Limited | Households | 1989 |
| Sutherland MAY Investments Ltd | Professional & scientific | 2022 |
| SW Community Housing Ltd | Real estate | 2023 |
| SW Developments (Torbay) Ltd | Construction | 2023 |
| SW Engineering & Manufacture Ltd | Professional & scientific | 2025 |
| Swagco Ltd | Administrative & support | 2026 |
| SWD Home Removals Ltd | Transport & logistics | 2025 |
| Swish Housekeeping Services Ltd | Administrative & support | 2019 |
| T & B Footwear Limited | Wholesale & retail | 2015 |
| T & M Decorators Ltd | Construction | 2024 |
| T-C Scaffolding South West Limited | Construction | 2024 |
| T-Rex Homes Limited | Real estate | 2021 |
| T.J. Smith Contracting Ltd | Construction | 1999 |
| Taboo INK Limited | Information & communication | 2018 |
| Tailored Estate Planning Ltd | Financial services | 2018 |
| Tailored Wealth Financial Services Ltd | Financial services | 2021 |
| Taufer Homes Ltd | Real estate | 2021 |
| TBS Consulting Ltd | Professional & scientific | 2014 |
| Tcnc Machine Services Limited | Manufacturing | 2016 |
| Tcnc Parts Division Limited | Wholesale & retail | 2024 |
| TD Client Services Limited | Professional & scientific | 2023 |
| TDW Builders Limited | Construction | 2006 |
| Techknow Pro Limited | Construction | 2007 |
| Technicky Limited | Other services | 2018 |
| Teign Builders Ltd | Construction | 2026 |
| Teign Catering Limited | Hospitality | 2021 |
| Teign Commercial Management Ltd | Professional & scientific | 2022 |
| Teign Court Management Company Limited | Real estate | 2002 |
| Teign Fishermen and Watermen's Community Interest Company | Agriculture & fishing | 2010 |
| Teign Geeks Ltd | Information & communication | 2015 |
| Teign Heritage | Arts & recreation | 2006 |
| Teign Indian Cuisine Ltd | Hospitality | 2014 |
| Teign Indian Restaurant Ltd | Hospitality | 2026 |
| Teign Leisure Ltd | Other services | 2017 |
| Teign Life Cricket Ltd | Health & social care | 2026 |
| Teign Music Limited | Wholesale & retail | 2007 |
| Teign Property Holdings Ltd | Financial services | 2026 |
| Teign Site Management Services Limited | Construction | 2017 |
| Teign Trees and Landscapes South West Limited | Agriculture & fishing | 2016 |
| Teign Trustees Limited | Professional & scientific | 1999 |
| Teign Valley Building Co. Limited | Construction | 1968 |
| Teign View Management Company Limited | Households | 2008 |
| Teign Wash & Waste Ltd | Water & waste | 2021 |
| Teignbrooke Limited | Construction | 2025 |
| Teigndec Ltd | Construction | 2015 |
| Teignmouth & District Bonding Company Limited(The) | Real estate | 1935 |
| Teignmouth Airshow & Events Community Interest Company | Other services | 2018 |
| Teignmouth and Shaldon Cricket Club Community Interest Company | Arts & recreation | 2013 |
| Teignmouth Barber (SW) Ltd | Other services | 2024 |
| Teignmouth Eastcliff Community Company Limited | Other services | 2010 |
| Teignmouth Freemason's Hall Company Limited(The) | Other services | 1939 |
| Teignmouth Fresh Cuts Ltd | Other services | 2025 |
| Teignmouth Fruit & VEG Ltd | Wholesale & retail | 2026 |
| Teignmouth Golf Club Limited | Arts & recreation | 1992 |
| Teignmouth Kebab & Pizza Ltd | Hospitality | 2025 |
| Teignmouth Ltd | Hospitality | 2018 |
| Teignmouth Medico-Legal Limited | Financial services | 2021 |