| Svenska Handelsgruppen LP | | 2013 |
| Svenska ORM LP | | 2013 |
| SVS Holdings Limited | Manufacturing | 2008 |
| SW HR Consultancy Limited | Administrative & support | 2025 |
| Swablets Ltd | Real estate | 2023 |
| Swailend Properties Limited | Real estate | 2023 |
| Swan & Co (Marine Surveyors) Limited | Professional & scientific | 1998 |
| Swan Marine Surveyors Limited | Administrative & support | 2005 |
| Swan Property Maintenance Ltd | Other services | 2022 |
| Swankie Plant Ltd | Wholesale & retail | 2025 |
| Swankie's Food Products Limited | Manufacturing | 1979 |
| Sweet Blossom Ltd | Wholesale & retail | 2026 |
| Sweet Bubbletea Ltd | Hospitality | 2023 |
| Swell X Limited | Professional & scientific | 2012 |
| Swes & Ashgrove Limited | Construction | 2011 |
| SWG Subsea Ltd | Administrative & support | 2024 |
| Swiflane Ltd | Transport & logistics | 2025 |
| Swift Sale Properties Ltd | Real estate | 2024 |
| Swiftcart Stores Ltd | Wholesale & retail | 2025 |
| Swiftmoda Ltd | Wholesale & retail | 2024 |
| Swinton Academic Services Ltd | Information & communication | 2022 |
| Swipen Ltd | Financial services | 2019 |
| Swiss Equiti Ltd | Financial services | 2020 |
| Swiss Italian LP | | 2015 |
| Switon & Lawson Ltd | Financial services | 2015 |
| Swtc Trading Limited | Wholesale & retail | 2022 |
| SXC (Scotland) Ltd | Professional & scientific | 2019 |
| SY Ventures Group Limited | Professional & scientific | 2018 |
| Sybol Limited | Hospitality | 2021 |
| Syedali Consulting Limited | Professional & scientific | 2025 |
| Syet Holdings Limited | Real estate | 2022 |
| Sykes Holidays Limited | Real estate | 2024 |
| Sylvamo UK Limited | Wholesale & retail | 1901 |
| Sylvan Redd Ltd | Professional & scientific | 2014 |
| Sylvan Redd Property Ltd | Real estate | 2023 |
| Synapsed NET Ltd | Professional & scientific | 2017 |
| Synaptai Limited | Information & communication | 2025 |
| Synergen OIL & GAS UK Limited | Professional & scientific | 2013 |
| Synergic Materials Engineering Ltd. | Professional & scientific | 2009 |
| Synergy and Nexus Ltd | Information & communication | 2025 |
| Synergy Control Systems Ltd | Administrative & support | 2003 |
| Synergy Energy Resources Ltd | Information & communication | 2019 |
| Synergy Global Resources Ltd | Administrative & support | 2013 |
| Synerisk Solutions Ltd | Mining & quarrying | 2025 |
| Synnax Limited | Professional & scientific | 2023 |
| Syntara Energy Limited | Energy | 2025 |
| Syntraai Services Ltd | Information & communication | 2026 |
| Sypospark Ltd | Administrative & support | 2024 |
| Syps Aberdeen Ltd | Wholesale & retail | 2020 |
| Syradale Limited | Professional & scientific | 2007 |
| Sysco IT Consultants Ltd | Information & communication | 2013 |
| Systemiq Capital CIP III LP | | 2026 |
| Systems Flow Studio Ltd | Professional & scientific | 2026 |
| Systrum Limited | Financial services | 2007 |
| Sythers Ltd | Wholesale & retail | 2022 |
| SZ Catering Ltd | Hospitality | 2019 |
| SZN Media Ltd | Information & communication | 2025 |
| T & G Grampian Limited | Real estate | 2008 |
| T & H Flooring Limited | Construction | 2018 |
| T and D Subsea Ltd | Professional & scientific | 2021 |
| T B M Controls Ltd | Mining & quarrying | 2012 |
| T D C (Aberdeen) Limited | Administrative & support | 1997 |
| T D C Parsons Peebles Limited | Professional & scientific | 2020 |
| T Livingstone Flooring Ltd | Construction | 2024 |
| T P Aberdeen Limited | Hospitality | 2016 |
| T&Ma Limited | Wholesale & retail | 2022 |
| T&W Smile Limited | Health & social care | 2026 |
| T-Press Ltd | Professional & scientific | 2025 |
| T.Creda Electrical Ltd | Manufacturing | 2025 |
| T.E Ortho Care Ltd | Health & social care | 2024 |
| T.Keeley Advanced Inspection Ltd | Professional & scientific | 2022 |
| T.O. Welding Services Ltd | Administrative & support | 2026 |
| T.P.S. Fruit & Vegetables Limited | Wholesale & retail | 1999 |
| T5 Flooring Limited | Construction | 2025 |
| Ta-Core Ltd | Professional & scientific | 2026 |
| Taavetti Interiors Limited | Wholesale & retail | 2016 |
| Taavetti Office Interiors Limited | Wholesale & retail | 2016 |
| Tabletop Central Ltd | Wholesale & retail | 2023 |
| Tabrifics Ltd | Wholesale & retail | 2022 |
| TAC Healthcare Group Ltd | Health & social care | 2013 |
| Tadaoilis Ltd | Professional & scientific | 2023 |
| TAF Powell Associates Limited | Professional & scientific | 2013 |
| Taggart Mechanical Services Limited | Professional & scientific | 2018 |
| Taida Salaber Interiors Ltd | Professional & scientific | 2024 |
| Tailored Facilities Management Limited | Administrative & support | 2024 |
| Tailored Security Services Limited | Administrative & support | 2022 |
| Tailored Training Services Limited | Education | 2023 |
| Takeme Somewhere Limited | Transport & logistics | 2025 |
| Takomax LP | | 2012 |
| Talemkhu Ltd | Health & social care | 2022 |
| Talk to a Dentist Ltd | Information & communication | 2020 |
| Tamarind Bridge Limited | Real estate | 1996 |
| Tamaskar Business Management Limited | Professional & scientific | 2013 |
| Tamileelam Foods Limited | Wholesale & retail | 2025 |
| TAN Allure Ltd | Professional & scientific | 2022 |
| Tandeco NET LP | | 2012 |
| Taniri Limited | Health & social care | 2018 |
| Tanjore Tales Ltd | Wholesale & retail | 2025 |
| Tank Services (Aberdeen) Limited | Administrative & support | 2004 |
| Tantalus OIL and GAS Ltd | Administrative & support | 2025 |