| Sorta UK Limited | Real estate | 2018 |
| Sound AS a Bell Ltd | Education | 2019 |
| Souter Garden Maintenance Ltd | Administrative & support | 2018 |
| Startin Aviation Ltd | Transport & logistics | 2023 |
| Steel Viper Limited | Other services | 2017 |
| Stewart Angus Limited | Agriculture & fishing | 2003 |
| Stewart Pipework Limited | Manufacturing | 1997 |
| Stuart Mitchell (Joiner) Limited | Construction | 2003 |
| Subsea Piping Solutions Limited | Manufacturing | 2014 |
| Techlings Ltd | Professional & scientific | 2015 |
| Tetro Energy Limited | Energy | 2002 |
| THE Brood Pet Services Ltd | Agriculture & fishing | 2022 |
| THE Crovie Partnership Limited | Professional & scientific | 2014 |
| THE Dog & Doublet Lockside Marquee & Events Ltd | Arts & recreation | 2026 |
| THE GIN Cooperative Ltd | Wholesale & retail | 2018 |
| Thorogood Consultants | Mining & quarrying | 2007 |
| TM Equine Ltd | Professional & scientific | 2023 |
| Tolag Project Services Ltd. | Professional & scientific | 2007 |
| Transcend Cost Consultancy Limited | Professional & scientific | 2026 |
| VIP Engineering Services Limited | Professional & scientific | 2007 |
| Voyaj&R Projects Limited | Administrative & support | 2021 |
| Wantonwells Limited | Agriculture & fishing | 2021 |
| Wardhouse Estate Limited | Real estate | 2004 |
| Waterdowns Hideaway Ltd | Hospitality | 2026 |
| Waterside Inspection Services Ltd | Other services | 2012 |
| Waterton Energy Ltd | Energy | 2014 |
| Weldright Fabrications Limited | Manufacturing | 2001 |
| Wellred Ltd | Mining & quarrying | 2007 |
| Wildlife for Development | Professional & scientific | 2009 |
| William Duguid Ltd | Construction | 2011 |
| Wilson Firmware Limited | Information & communication | 2021 |
| Wilson Whitehall Ltd | Agriculture & fishing | 2023 |
| Wood Recycling (Scotland) Limited | Water & waste | 2005 |