| THE White House (ST Andrews) Ltd | Other services | 2022 |
| THE Zora Collective CIC | Other services | 2026 |
| Thecoachbuilder Limited | Manufacturing | 2016 |
| Themadrascottage Ltd | Hospitality | 2024 |
| Thistle Joinery Limited | Manufacturing | 2025 |
| Three-D Managers Limited | Real estate | 2026 |
| Thrive Childcare and Education Group Limited | Health & social care | 2006 |
| Thrive Childcare and Education Limited | Health & social care | 1999 |
| Tima Styles and Creations Limited | Professional & scientific | 2025 |
| TM Edinburgh Ltd | Real estate | 2021 |
| TOD Enterprises Ltd | Real estate | 2020 |
| TOM Foottit Carpentry Ltd | Construction | 2021 |
| Totex Construction and Consulting Limited | Construction | 2017 |
| Totex Real Estate Limited | Real estate | 2026 |
| Tourist Customer Services Ltd | Wholesale & retail | 2019 |
| Trabc Ltd | Arts & recreation | 2019 |
| Tracey Welsh Limited | Other services | 2014 |
| Treasured Home Care Limited | Health & social care | 2024 |
| Tribauto Limited | Information & communication | 2024 |
| Tricorn Capital Limited | Real estate | 2011 |
| Trifecta Plumbing & Heating Limited | Construction | 2023 |
| Trinity Roofing Limited | Construction | 1992 |
| Trinity Roofing Solar Limited | Construction | 2024 |
| TSG Letting Services Ltd | Real estate | 2011 |
| Tucker Plumbing Services Ltd | Construction | 2018 |
| Turing Consultancy Ltd | Administrative & support | 2025 |
| Tuttle Consulting Ltd | Professional & scientific | 2025 |
| Tystie Tours Ltd | Administrative & support | 2022 |
| UK Response 247 Ltd | Construction | 2014 |
| Ultimate Alloys Limited | Wholesale & retail | 2014 |
| Universal Essentials Ltd | Wholesale & retail | 2022 |
| Urban Design (East Lothian) Limited | Professional & scientific | 2018 |
| V2 Joinery Ltd | Manufacturing | 2025 |
| Value Tax Limited | Administrative & support | 2016 |
| Van DER Velde Investments Ltd | Real estate | 2021 |
| Veen Barbers (East Lothian) Ltd | Other services | 2024 |
| Veen Barbers (Musselburgh) Ltd | Other services | 2019 |
| Vennel Ltd. | Information & communication | 2016 |
| Venue 13 Fringe Ltd | Arts & recreation | 2025 |
| Veridex AI Ltd | Information & communication | 2026 |
| Vintage & Reclaimed Limited | Wholesale & retail | 2021 |
| Virtuoso Hairdressing Ltd | Other services | 2023 |
| Visage Beauty & Tanning Studios Ltd. | Other services | 1997 |
| Vridhee Ltd | Hospitality | 2023 |
| VUE Windows & Doors Ltd | Construction | 2026 |
| Wally Coffee Ltd | Manufacturing | 2025 |
| Walton B C Limited | Construction | 2017 |
| Waverley Construction Ltd | Construction | 2022 |
| Waymarker Music Ltd | Arts & recreation | 2015 |
| Weathervale Limited | Transport & logistics | 2002 |
| WEE Mosquito Limited | Arts & recreation | 2022 |
| WEE Shop Musselburgh Ltd | Wholesale & retail | 2025 |
| Wellness Thai Ltd | Other services | 2025 |
| West HO Property Ltd | Real estate | 2025 |
| Where's the One? Ltd. | Information & communication | 2004 |
| Whitecraig Kitchen Franchise Limited | Hospitality | 2025 |
| William Marr Ltd | Real estate | 2000 |
| WILLIAM210520 Limited | Other services | 2024 |
| Wilson Developments (Edinburgh ) Ltd | Construction | 2018 |
| Wilson Property Investments (Scotland) Ltd | Real estate | 2017 |
| Windsor Developments Scotland Limited | Construction | 2020 |
| WMM Services Ltd | Administrative & support | 2026 |
| Wrfu Ltd | Real estate | 2011 |
| Y-Not Coaching Ltd | Education | 2025 |
| Yaia Limited | Wholesale & retail | 2018 |
| YD Property Maintenance Ltd | Construction | 2019 |
| Yinvest? Limited | Professional & scientific | 2018 |
| Yplan? Limited | Information & communication | 2018 |
| Yvonne Somerville Consultancy Ltd | Administrative & support | 2023 |
| YZ Tech Solutions Ltd | Information & communication | 2025 |
| Zaiqa Feast Limited | Hospitality | 2025 |
| Zero DRY Time Dundee Ltd | Administrative & support | 2022 |
| Zerren Properties Ltd | Real estate | 2025 |
| Zora Network Ltd | Information & communication | 2023 |
| Zuhus Express Limited | Hospitality | 2019 |