| Strip Kwik Limited | Construction | 2020 |
| Stuart Grant Car Sales Ltd | Wholesale & retail | 2014 |
| Stuart Mckenzie Consulting Limited | Professional & scientific | 2023 |
| Sweetbloom Candles Ltd | Arts & recreation | 2020 |
| Synergies Capital Ltd | Information & communication | 2020 |
| T S Aitken CQS Limited | Professional & scientific | 2014 |
| T.G. Allan Limited | Construction | 1915 |
| T.G.Wilson Ltd | Administrative & support | 2020 |
| Table Group Limited | Hospitality | 2025 |
| Tabrowsandbeauty Ltd | Other services | 2026 |
| Tanah Merah Holdings Ltd | Real estate | 2017 |
| Tartan Tease Ltd | Wholesale & retail | 2024 |
| Tartan Tigers Ltd. | Wholesale & retail | 2012 |
| Tartan Triangle Limited | Wholesale & retail | 2016 |
| Tartan Wolf Minicabs & Taxis Ltd | Transport & logistics | 2026 |
| Tasha Holdings Ltd | Real estate | 2015 |
| Tawny Lodge Aviemore Ltd | Hospitality | 2024 |
| Taylor IT Limited | Information & communication | 2018 |
| Texscot Ltd | Arts & recreation | 2024 |
| THE Arden Collection Ltd | Professional & scientific | 2023 |
| THE Aviary (Dollar) Ltd | Hospitality | 2025 |
| THE CAD Practice Limited | Professional & scientific | 1996 |
| THE Chair (Helensburgh) Limited | Other services | 2013 |
| THE Clyde Bar Helensburgh Limited | Hospitality | 2022 |
| THE Coffee Club Helensburgh Ltd | Hospitality | 2015 |
| THE Cove and Kilcreggan Trust | Other services | 2012 |
| THE Credit Dispensary Limited | Financial services | 2014 |
| THE Edinburgh Emporium Ltd | Wholesale & retail | 2025 |
| THE Helensburgh Pier Company Limited | Manufacturing | 2024 |
| THE John Dobbie Foundation | Other services | 2011 |
| THE Jounrey Helensburgh LLP | | 2023 |
| THE Journey Fitness Ltd | Wholesale & retail | 2023 |
| THE Journey Yoga Ltd | Other services | 2023 |
| THE Leader Scotland Ltd | Professional & scientific | 2018 |
| THE Lomond Clinic Limited | Health & social care | 2009 |
| THE Mighty Quinn Home Renovations Ltd | Construction | 2024 |
| THE Station Bar (Helensburgh) Limited | Hospitality | 2011 |
| THE Submariner Whisky Ltd | Wholesale & retail | 2026 |
| THE Tower Digital Arts Centre | Arts & recreation | 2014 |
| THE Venue @ Saint Columba Limited | Arts & recreation | 2024 |
| THE WEE Coaching Company Limited | Education | 2021 |
| THE Yard Helensburgh Ltd | Wholesale & retail | 2022 |
| Thea Fellowes Services Ltd | Health & social care | 2021 |
| Thegbmbakery Ltd | Manufacturing | 2019 |
| Thejourney LLP | | 2019 |
| Thistle Consultants Limited | Information & communication | 2005 |
| Thomas Rowatt & SON Limited | Wholesale & retail | 1962 |
| Thomson Rentals Helensburgh Ltd | Real estate | 2013 |
| Thorgil's Limited | Manufacturing | 2023 |
| Thorn Crioch Ltd | Hospitality | 2021 |
| Three Ideas Solutions Ltd | Information & communication | 2018 |
| Ticlee Limited | Other services | 2009 |
| Tidswell Electrical Services Ltd. | Mining & quarrying | 2023 |
| TIG Marketing Ltd | Information & communication | 2019 |
| Tinloryn Ltd | Hospitality | 2025 |
| Toovey Ltd | Real estate | 2018 |
| Topaz Marine Ltd | Professional & scientific | 2026 |
| Touchstone Education LLP | | 2014 |
| Towerfield Limited | Real estate | 2019 |
| Town Square Property Ltd | Transport & logistics | 2015 |
| Townhead Farm Helensburgh Ltd | Agriculture & fishing | 2024 |
| Travel Argyll Group Ltd | Transport & logistics | 2025 |
| Treearge Ltd | Agriculture & fishing | 2025 |
| Trend Bathrooms Ltd | Construction | 2026 |
| Trident Private Hire Ltd | Transport & logistics | 2019 |
| Trident Taxis and Trident Private Hire Ltd | Transport & logistics | 2025 |
| Trident Taxis Limited | Transport & logistics | 2019 |
| Trig Inspection Services Limited | Professional & scientific | 2025 |
| Tullochan Hydro Limited | Energy | 2014 |
| Tynedale Contracts Limited | Construction | 2009 |
| UCM Veterinary Clinics Ltd | Professional & scientific | 2023 |
| Ucroft Limited | Information & communication | 2020 |
| Urquhart Knox Limited | Financial services | 2009 |
| Urquhart Yacht Services Limited | Wholesale & retail | 2016 |
| Vape Cook Ltd | Wholesale & retail | 2017 |
| VEGAN100 Ltd | Extraterritorial | 2019 |
| Vehicle Wraps (Scotland) Limited | Administrative & support | 2016 |
| Vertigo (Scotland) Limited | Construction | 2015 |
| Veterinary Practice Hygiene Ltd | Wholesale & retail | 2023 |
| Viking Business Services Ltd | Administrative & support | 2009 |
| Visit Helensburgh Limited | Administrative & support | 2010 |
| VJS Property Consulting Limited | Other services | 2013 |
| Vrlv Limited | Wholesale & retail | 2025 |
| VS Restaurant Ltd | Hospitality | 2026 |
| Warren-Henrik Limited | Households | 2022 |
| Wasteaway Scotland Ltd | Administrative & support | 2016 |
| Waverleycarers Ltd | Health & social care | 2023 |
| Waysfound Ltd | Administrative & support | 2026 |
| Webtoolbox Ltd | Professional & scientific | 2021 |
| West Building Contracts Ltd | Administrative & support | 2017 |
| West Coast 300 Limited | Information & communication | 2025 |
| West Coast Stoves Ltd | Construction | 2026 |
| West Coast Wood Ltd | Arts & recreation | 2023 |
| West Lodge Promotions Limited | Other services | 2014 |
| West Princes Apartment Ltd | Real estate | 2013 |
| Western (Glasgow Test Centres) Ltd | Manufacturing | 2008 |
| Western Isles Coastal Cruises Limited | Transport & logistics | 2024 |
| Wicker & Wine Ltd | Wholesale & retail | 2025 |
| Wiggle Room Play Cafe Limited | Other services | 2026 |
| Wild Highlands Property Limited | Financial services | 2019 |