| Tunescape Ltd | Information & communication | 2020 |
| Tung Foods Ltd | Hospitality | 2016 |
| Tuning Performance Ltd | Professional & scientific | 2024 |
| Tunn Dental Care Ltd | Health & social care | 2008 |
| Turadh Holdings Limited | Hospitality | 2021 |
| Turatello Trailers Ltd | Wholesale & retail | 2014 |
| Turk Professional Services Ltd | Professional & scientific | 2018 |
| Turkish Flames Aberdeen Ltd | Hospitality | 2024 |
| Turn TEC Limited | Manufacturing | 2021 |
| Turnerhall Ltd | Real estate | 2026 |
| Turnkey Environmental Management Services Limited | Professional & scientific | 2017 |
| Turteesglobal Ltd | Wholesale & retail | 2024 |
| Tutoring With Debs (TWD) Ltd | Wholesale & retail | 2024 |
| Tuxedo Holdings Worldwide Ltd | Professional & scientific | 2015 |
| TVP Film & Multimedia Limited | Information & communication | 1996 |
| TVR Commissioning Ltd | Professional & scientific | 2015 |
| Tweed Wellness Ltd | Wholesale & retail | 2024 |
| Twefda Limited | Professional & scientific | 2018 |
| Twelve Ness Walk Limited | Hospitality | 2017 |
| Twenty Four Offshore Ltd | Arts & recreation | 2025 |
| Twenty Nine Consulting Limited | Professional & scientific | 2012 |
| Twenty SIX M Ltd | Professional & scientific | 2025 |
| Twinkley Jewellery Ltd | Wholesale & retail | 2024 |
| Twisted-Spoke Apparel Limited | Wholesale & retail | 2018 |
| Twma Group Limited | Professional & scientific | 2000 |
| Twma Middle East Limited | Professional & scientific | 1979 |
| Twothreefiveseven Limited | Administrative & support | 2014 |
| Twseagrave. Ltd | Transport & logistics | 2021 |
| Tycom Limited | Information & communication | 2011 |
| Tylertaitptonline Ltd | Other services | 2025 |
| Tymor Airtech Ltd | Wholesale & retail | 2023 |
| Tymor Energy Limited | Professional & scientific | 2016 |
| Tynan 55 Limited | Professional & scientific | 2014 |
| Tyre Warehouse Aberdeen Ltd | Wholesale & retail | 2018 |
| Tyremann Aberdeen Ltd | Wholesale & retail | 2018 |
| Tyreservices Aberdeen Limited | Wholesale & retail | 2017 |
| Tyrone Petroleum Consultants Limited | Real estate | 1992 |
| U Farms Holdings Limited | Extraterritorial | 2011 |
| U S Autos & Transport Solutions Ltd | Wholesale & retail | 2025 |
| U Sea Limited | Administrative & support | 2019 |
| U Stores Aberdeen Limited | Wholesale & retail | 2020 |
| U-Get Homes Ltd | Real estate | 2017 |
| UAC Scotland Limited | Professional & scientific | 2017 |
| Uaine Environmental Limited | Professional & scientific | 2023 |
| UBH Investments Ltd | Real estate | 2025 |
| UCF Services Limited | Professional & scientific | 2018 |
| UCM Looms Limited | Financial services | 2017 |
| Ucmp Merged Limited Partnership | | 2017 |
| Ucruit Limited | Administrative & support | 2020 |
| UDK Group Ltd | Manufacturing | 2016 |
| Udny Arms Hotel Ltd | Hospitality | 2020 |
| Udny Community Cafe Company Limited | Hospitality | 2021 |
| Udny Community Trust Company Limited | Administrative & support | 2009 |
| Udny Community Wind Turbine Company Limited | Energy | 2009 |
| UDS Services Limited | Real estate | 2005 |
| UH Trader Hub Ltd | Agriculture & fishing | 2026 |
| UHH Limited | Hospitality | 2024 |
| Uisge Energy Ltd | Energy | 2021 |
| UK Aberdeen Chinese Assoc Ltd. | Other services | 2020 |
| UK FJ Engineering Ltd | Construction | 2020 |
| UK Float Events Ltd | Arts & recreation | 2022 |
| UK Flood Risk Limited | Construction | 2015 |
| UK Reddy Hospitality Ltd | Hospitality | 2025 |
| Ukemi Ltd | Professional & scientific | 2018 |
| ULO Foods Ltd | Hospitality | 2026 |
| Ultimate Aberdeen Ltd | Administrative & support | 2024 |
| Ultimate Catering Limited | Hospitality | 2024 |
| Ultimate Fitness Retreats Ltd | Other services | 2018 |
| Ultimate Seals Limited | Manufacturing | 2014 |
| Ultimatesetup Ltd | Wholesale & retail | 2024 |
| Ultramarine Research Ltd | Professional & scientific | 2025 |
| Uluma Consulting Ltd | Professional & scientific | 2025 |
| Ulundi Consulting Limited | Professional & scientific | 2025 |
| Umax Limited | Construction | 2016 |
| Uncle Jovi Enterprise Limited | Hospitality | 2021 |
| Underwater Contracting Limited | Professional & scientific | 2016 |
| Underwater Contractors Limited | Construction | 2013 |
| Uniconn (Scotland) Limited | Mining & quarrying | 2018 |
| Unicorn Property Investments Limited | Real estate | 2022 |
| Unidan Property Group Ltd | Real estate | 2025 |
| Union 401 Ltd | Hospitality | 2019 |
| Union Bridge Commercial Aberdeen Limited | Real estate | 2026 |
| Union Cafe Limited | Hospitality | 2018 |
| Union Construction Aberdeen Ltd | Construction | 2025 |
| Union Cutz Ltd | Other services | 2024 |
| Union Enterprises Catering Limited | Hospitality | 2025 |
| Union Fountain Limited | Real estate | 2018 |
| Union Motors (Aberdeen) Limited | Wholesale & retail | 2016 |
| Union Salon Limited | Other services | 2018 |
| Union Street Clinic Ltd | Health & social care | 2025 |
| Union Street Dental Care Ltd | Health & social care | 2019 |
| Union Street Partnership Ltd | Administrative & support | 2022 |
| Union Supplies (Aberdeen) Limited | Wholesale & retail | 2001 |
| Union Terrace Ltd | Other services | 2025 |
| Unionspark Ltd | Wholesale & retail | 2011 |
| Unique Skin Beauty Clinic Ltd | Wholesale & retail | 2025 |
| Unique Solutions Engineering Ltd | Professional & scientific | 2018 |
| Unique System (UK) Limited | Administrative & support | 2009 |
| Uniquely Shiks Ltd | Wholesale & retail | 2020 |
| Unispace Scotland Ltd | Construction | 2013 |