| Scotia Town & Country Ltd | Wholesale & retail | 2023 |
| Scottish Leather Group Limited | Manufacturing | 1965 |
| Scottish Leather Group Operations Limited | Manufacturing | 1928 |
| Sensorpro Limited | Manufacturing | 1990 |
| Ship Consultancy Ltd | Extraterritorial | 2009 |
| Simondium Pictures Ltd | Professional & scientific | 2021 |
| SK Studio Design Limited | Information & communication | 2025 |
| SLG EBT Trustee Company Limited | Professional & scientific | 2007 |
| SLG Technology Limited | Manufacturing | 2008 |
| Squires Enigma Ltd | Information & communication | 2018 |
| Stanrock Property Ltd | Construction | 2025 |
| Star Cleaning (Scot) Ltd | Administrative & support | 2020 |
| Stemma Tree Care Ltd | Administrative & support | 2026 |
| Stewart IFA Limited | Financial services | 2002 |
| Stewart Independent Financial Advice Limited | Financial services | 2012 |
| Stuart Macintyre Limited | Professional & scientific | 2017 |
| Studio SJM Architects Ltd | Professional & scientific | 2019 |
| Susan Bland Consulting Limited | Professional & scientific | 2025 |
| Sustainable Futures Consultancy Limited | Professional & scientific | 2024 |
| Synclini Ltd | Administrative & support | 2024 |
| T.Gilmour Decorators Limited | Construction | 1985 |
| Taher & Mccallum Opticians Limited | Health & social care | 2013 |
| Take a Break Cleaning Ltd | Administrative & support | 2014 |
| Terre Lann Ltd Ltd | Construction | 2023 |
| THE Boxed Kitchens Ltd | Hospitality | 2026 |
| THE Delta Futures Trading Partnership | | 1999 |
| THE Ginger Cat Children's Book Shop Ltd | Wholesale & retail | 2021 |
| THE Kids Menu (Scotland) Ltd | Wholesale & retail | 2022 |
| THE Swim Barn Ltd | Arts & recreation | 2022 |
| TL Technology Ltd. | Wholesale & retail | 2016 |
| Todd Property Management Limited | Hospitality | 2001 |
| Tony Murray Ltd | Construction | 2010 |
| Torquil Murray Consulting Limited | Professional & scientific | 2007 |
| Torr Cuisine Ltd | Hospitality | 2019 |
| Torwood 1 Ltd | Real estate | 2024 |
| Trigan Enterprises Ltd | Real estate | 2023 |
| TT Glasgow South Limited | Arts & recreation | 2012 |
| UP the Hill Productions Limited | Information & communication | 2015 |
| Usepaq Ltd | Professional & scientific | 2015 |
| W.A.S. & K.A. Taylor Ltd. | Health & social care | 2003 |
| W.J. & W. Lang Limited | Manufacturing | 1947 |
| W.S. Moore (Properties) Limited | Other services | 1988 |
| W.Trading Limited | Real estate | 2020 |
| Wccs Scotland Limited | Administrative & support | 2017 |
| WCR Electrical Services Ltd. | Construction | 2009 |
| Weir DRY Cleaners Limited | Other services | 2010 |
| Weir Fortune Ltd | Hospitality | 2025 |
| Westering Property Company Ltd | Real estate | 2022 |
| Westfab Project Controls Limited | Professional & scientific | 2010 |
| Willis Garage 1 Ltd | Real estate | 2024 |
| Wingate Property (Scotland) Limited | Real estate | 2025 |
| Yatrix Limited | Information & communication | 2026 |
| Yeet Day Limited | Hospitality | 2020 |
| ZR Shop Ltd | Wholesale & retail | 2024 |