| Tejj Business Solutions Ltd | Hospitality | 2010 |
| Tekaton Limited | Information & communication | 2023 |
| Teker Limited | Professional & scientific | 2011 |
| Tekhi Subsea Limited | Other services | 2012 |
| Teklux Limited | Professional & scientific | 2021 |
| Tekoa LP | | 2013 |
| Telemetry & Logic Engineering TLE Ltd | Professional & scientific | 2025 |
| Telephony Ltd | Information & communication | 2023 |
| Teleplan Forsberg Limited | Manufacturing | 1987 |
| Telford LP | | 2013 |
| Telluride Ltd | Construction | 2026 |
| Telos Beta Limited | Extraterritorial | 2022 |
| Teltem Limited | Professional & scientific | 2014 |
| Temmy's Little Angels Ltd | Health & social care | 2022 |
| Tempest Engineering Limited | Professional & scientific | 2022 |
| Tempest One Ltd | Professional & scientific | 2017 |
| Temple Medical Limited | Health & social care | 2010 |
| Temple VIE Ltd | Health & social care | 2020 |
| TEN Acre (Scotland) Limited | Professional & scientific | 1999 |
| Tenders Connect Limited | Information & communication | 2019 |
| Tendies Limited | Hospitality | 2024 |
| Tenfold Traders Ltd | Wholesale & retail | 2018 |
| Tenli Limited | Professional & scientific | 2020 |
| Tennants (Elgin) Limited | Administrative & support | 1998 |
| Teno Energy Ltd | Professional & scientific | 2016 |
| Tenpin (Scotland) Limited | Arts & recreation | 2010 |
| Tenzor GEO Ltd | Professional & scientific | 2018 |
| Teperek Engineering Ltd | Other services | 2010 |
| TER Bron UK Ltd | Professional & scientific | 2026 |
| Termspeed Limited | Hospitality | 1992 |
| Ternan Energy Limited | Professional & scientific | 2015 |
| Terra Nossa Ltd | Professional & scientific | 2016 |
| Terragrid Energy Systems Ltd | Energy | 2026 |
| Terram Consultancy Ltd | Real estate | 2024 |
| Terraocean Limited | Construction | 2020 |
| Terrastar Gnss Limited | Information & communication | 2013 |
| Terry Surveying Services Co (UK) Ltd. | Construction | 2018 |
| Tertowie Limited | Energy | 2012 |
| Tervimet LP | | 2013 |
| Tesi Developments Ltd | Real estate | 2020 |
| Tess Aberdeen Limited | Administrative & support | 1998 |
| Tess Group Ltd | Professional & scientific | 2018 |
| Tessari Ltd | Professional & scientific | 2025 |
| Tesseract (Scotland) Limited | Professional & scientific | 2021 |
| Test Centre Aberdeen Ltd | Manufacturing | 2016 |
| Tethys Testing Limited | Information & communication | 2005 |
| Tetra Investments Company U.K. Limited | Mining & quarrying | 2011 |
| Tetrad Aberdeen Limited | Administrative & support | 2019 |
| Tewnion-Brown Productions Ltd | Professional & scientific | 2022 |
| Textile Wastes (Scotland) Limited | Extraterritorial | 1982 |
| Tezel Limited | Administrative & support | 2023 |
| TFC Media Limited | Health & social care | 2024 |
| TFI Marine UK Ltd | Professional & scientific | 2020 |
| TFR Global Ltd | Wholesale & retail | 2025 |
| TG Energy Services Limited | Wholesale & retail | 2012 |
| TG Office Services Limited | Wholesale & retail | 2021 |
| TG21 Beauty Limited | Other services | 2020 |
| TGC Aberdeen North Limited | Administrative & support | 2020 |
| TGC F2 Ltd | Administrative & support | 2018 |
| TGC F3 Ltd | Administrative & support | 2018 |
| TGC Facilities Management Ltd | Administrative & support | 2016 |
| TGC Franchising Ltd | Administrative & support | 2018 |
| TGC Glasgow and West Ltd | Administrative & support | 2021 |
| TGC South Ltd | Administrative & support | 2017 |
| TGT Oilfield Services UK Limited | Mining & quarrying | 2012 |
| Thai Luck Thai Limited | Hospitality | 2025 |
| Thai Seasons Limited | Hospitality | 2012 |
| Thai Supermarket (Rowson) Limited | Wholesale & retail | 2024 |
| Thailand NET LP | | 2014 |
| Thain Harrington Edward Chartered Architects and Town Planning Consultancy Limited | Professional & scientific | 2019 |
| Thainstone LLP | | 2014 |
| Thamin Global Limited | Manufacturing | 2024 |
| THE 33RD Barber Company Limited | Other services | 2017 |
| THE Aberdeen and District Property Company Limited | Real estate | 1932 |
| THE Aberdeen Business School Limited | Extraterritorial | 1992 |
| THE Aberdeen Clinic Ltd | Health & social care | 2018 |
| THE Aberdeen Doctor Ltd | Health & social care | 2024 |
| THE Aberdeen Foot Specialist Limited | Health & social care | 2023 |
| THE Aberdeen Management Centre Limited | Extraterritorial | 1992 |
| THE Aberdeen Marathon Company Limited | Arts & recreation | 2026 |
| THE Aberdeen Property Company Limited | Real estate | 2008 |
| THE Aberdeen University Press Limited | Professional & scientific | 1992 |
| THE Adam Lounge Limited | Hospitality | 2018 |
| THE Africulture Network | Education | 2021 |
| THE Albyn Foundation | Administrative & support | 2008 |
| THE Alpha Foundation Ltd | Professional & scientific | 2025 |
| THE Approved Chapter Ltd | Other services | 2026 |
| THE Archie Foundation | Health & social care | 2008 |
| THE Aries Collective Ltd | Other services | 2025 |
| THE Atrium Aberdeen Ltd | Hospitality | 2023 |
| THE Auld Alliance Limited | Wholesale & retail | 1989 |
| THE Auto Lounge Limited | Wholesale & retail | 2019 |
| THE Bagger's Tally Ltd | Administrative & support | 2021 |
| THE Ballater Baker Limited | Wholesale & retail | 2024 |
| THE Ballater Gallery Limited | Wholesale & retail | 2019 |
| THE Balm Limited | Health & social care | 2016 |
| THE Barbers Pole Limited | Other services | 2001 |
| THE Bee's Knees WSG Ltd | Hospitality | 2020 |
| THE Bessington Group Ltd | Wholesale & retail | 2024 |
| THE BGA Dish Ltd | Hospitality | 2026 |