| THE Piercing Studio Hamilton Limited | Other services | 2024 |
| THE Power Service (Scotland) Ltd | Construction | 2008 |
| THE Property Sourcer Ltd | Real estate | 2025 |
| THE Social News Company Limited | Information & communication | 2016 |
| THE Spectacle Box Ltd | Wholesale & retail | 2015 |
| THE Spectacle Maker Limited | Wholesale & retail | 2012 |
| THE Steps Bar Limited | Hospitality | 2019 |
| THE Stonehouse PUB Co Ltd | Hospitality | 2024 |
| THE Storage Zone Limited | Real estate | 2010 |
| THE Timber Craftsman Ltd | Administrative & support | 2026 |
| THE Tyre Factory Ltd | Wholesale & retail | 2021 |
| THE Upstagers Ltd | Professional & scientific | 2025 |
| THE Urban Butcher Limited | Manufacturing | 2020 |
| THE Urban Butcher Scotland Limited | Manufacturing | 2020 |
| THE Villa Hamilton Ltd | Hospitality | 2025 |
| THE Waggly Tail Pack Pet Services Ltd | Other services | 2024 |
| THE Wallace Cave Ltd | Hospitality | 2008 |
| THE Wedding Creative Ltd | Professional & scientific | 2025 |
| THE WEE KIT Company Limited | Manufacturing | 2024 |
| THE Wellbeing Hub (Hamilton) Ltd | Health & social care | 2025 |
| THE Wilkie Way Ltd | Other services | 2021 |
| THE Window MAN (GB) Limited | Construction | 2015 |
| THE Window MAN Repairs Limited | Construction | 2019 |
| THE Yarn Cake (Scotland) Ltd | Hospitality | 2012 |
| Thebigidea Ltd | Health & social care | 2023 |
| Thebriochebox Ltd | Wholesale & retail | 2025 |
| Therapeutic Minds Ltd | Health & social care | 2021 |
| Thermsaver Ltd | Wholesale & retail | 2009 |
| Think Print Media Ltd | Administrative & support | 2019 |
| Think Property Group Limited | Real estate | 2019 |
| Think Solutions Group Limited | Manufacturing | 2017 |
| Think Solutions Holdings Limited | Financial services | 2019 |
| Thistle & Brown Properties Ltd | Real estate | 2026 |
| Thistle and Heather Rentals Limited | Real estate | 2025 |
| Thistle Contract Hire and Leasinglimited | Wholesale & retail | 1979 |
| Thistle Healthcare Limited | Health & social care | 1986 |
| Thistle Immigration Ltd | Administrative & support | 2025 |
| Thistledome Parkburn Limited | Wholesale & retail | 2016 |
| Thomas Mcguigan & SON Limited | Manufacturing | 1993 |
| Thomas Mclean Rentals (SCO) Limited | Real estate | 2025 |
| Thomas Miller Holdings Ltd. | | 1999 |
| Thomas Miller Investment Holdings Ltd | | 2009 |
| Thombequ Office Limited | Wholesale & retail | 2025 |
| Thomson Associates Financial Advisers Ltd | Financial services | 2021 |
| Thomson Interactive Ltd. | Information & communication | 2010 |
| Thomson MOT & Service Centre Limited | Wholesale & retail | 2018 |
| Thrifty Supermart Ltd | Wholesale & retail | 2024 |
| Thurmaston Hand Car Wash Ltd | Administrative & support | 2022 |
| Thurmaston Tyres Ltd | Wholesale & retail | 2024 |
| Thyme Catering Ltd | Hospitality | 2023 |
| Tierney Heating & Plumbing Ltd | Construction | 2023 |
| Tierney Property Holdings Ltd | Real estate | 2024 |
| Tierney Roofing Solutions Limited | Administrative & support | 2017 |
| Tierney Transport & Consultancy Limited | Transport & logistics | 2019 |
| Tigh Dram Limited | Real estate | 2026 |
| Tillys Trails Ltd | Other services | 2025 |
| TIM Patel Property Limited | Real estate | 2021 |
| Timber Frame Steelwork Ltd | Manufacturing | 2020 |
| Timlin Beeks Limited | Financial services | 2021 |
| Tinthaus (Edinburgh) Limited | Administrative & support | 2009 |
| Tiny Tots Academy Ltd | Professional & scientific | 2006 |
| Tisam Property and Cleaning Services Limited | Real estate | 2022 |
| Titan Invest Ltd | Real estate | 2025 |
| Titleasst Private Limited | Information & communication | 2026 |
| TJ Granby Property Ltd | Real estate | 2021 |
| TJB Solutions Ltd | Information & communication | 2026 |
| TK Groundworks Ltd | Professional & scientific | 2023 |
| TM Leisure Edinburgh Ltd | Hospitality | 2015 |
| TM Leisure LDO Limited | Hospitality | 2024 |
| TMC Care Ltd | Health & social care | 2019 |
| TML CVH Limited | Professional & scientific | 2025 |
| TO Have and to Hold Your Dog Pet Chaperone Limited | Other services | 2024 |
| TO LET Investments Ltd | Real estate | 2018 |
| Tobias Moir Limited | Administrative & support | 2017 |
| Tobias Moir SCO Limited | Administrative & support | 2024 |
| Tobyco Property Investments Ltd | Real estate | 2025 |
| Todi Joinery & Maintenance Ltd | Manufacturing | 2025 |
| Tominey Transport Ltd | Transport & logistics | 2024 |
| Tommy's Garage Ltd | Wholesale & retail | 2015 |
| Tony Herron Joiners Limited | Construction | 2008 |
| Tony Kane Landscapes Ltd | Administrative & support | 2015 |
| Top Floor Tattoo Limited | Other services | 2019 |
| Topsie Limited | Real estate | 2019 |
| Total Engineering & Quality Services Ltd | Administrative & support | 2024 |
| Total Performance Fitness Ltd | Arts & recreation | 2014 |
| Total Power Solutions Limited | Construction | 2012 |
| Totally Scrumptious Limited | Wholesale & retail | 2019 |
| Touchless Disinfection Services Scotland Ltd | Professional & scientific | 2020 |
| Touring Scotland Limited | Administrative & support | 2021 |
| Townend Care Limited | Other services | 2004 |
| Townfield Construction Ltd. | Construction | 2002 |
| Townhead Café Ltd | Hospitality | 2015 |
| Townhill Welding Limited | Manufacturing | 2011 |
| Townweir Limited | Administrative & support | 2004 |
| Tracy Blake Fitness Ltd | Arts & recreation | 2022 |
| Tracy Crawford ANP Ltd | Health & social care | 2021 |
| Trade Force ALL Trades Ltd | Construction | 2026 |
| Tradeline (Scotland) Limited | Administrative & support | 2008 |
| Trades Locally Lanarkshire Ltd | Construction | 2018 |
| Tradeston Commercial Limited | Real estate | 2018 |