| Sutherlands Holding Group Limited | Financial services | 2016 |
| Sverige Absolut Group LP | | 2020 |
| Swansons Fruit Company Limited | Wholesale & retail | 2003 |
| Sweeney Rooms Inverness LP | | 2025 |
| Sweptawaycleaning Ltd | Administrative & support | 2025 |
| SWG Consultancy Ltd | Professional & scientific | 2025 |
| Swift Home Improvements Inverness Highlands and Islands Ltd | Construction | 2013 |
| SWIFT1 Recruitment Ltd | Professional & scientific | 2024 |
| Sylvestrus Limited | Agriculture & fishing | 2004 |
| Symphonic Limited | Information & communication | 1996 |
| Synapso Aesthetics Ltd | Other services | 2023 |
| Synapso Ltd | Health & social care | 2022 |
| Synergy Systems L.P. | | 2013 |
| System Components L.P. | | 2013 |
| Systema Electronics L.P. | | 2013 |
| Séasco Ltd | Construction | 2024 |
| T and T Fire Installation Ltd | Construction | 2010 |
| T Nelson Stonework Ltd | Construction | 2013 |
| T.M.R. Partnership | | 1999 |
| T20 Electrical Ltd | Construction | 2024 |
| T7HU Limited | Real estate | 2024 |
| Taco Amigos Ltd | Hospitality | 2026 |
| Tactical Wireless Operations Ltd | Manufacturing | 2018 |
| TAG Coachworks Ltd | Wholesale & retail | 2024 |
| Taigh Ailean Ltd | Hospitality | 2023 |
| Taigh Lettings Limited | Hospitality | 2013 |
| Tailor Made Moves Limited | Real estate | 2013 |
| Talent Forge Solutions Ltd | Professional & scientific | 2024 |
| Tanks 2 YOU Ltd | Construction | 2021 |
| Tapas (Inverness) Limited | Hospitality | 2000 |
| Tappstory Limited | Professional & scientific | 2015 |
| TAR Admin Ltd | Administrative & support | 2024 |
| Target Discount Limited | Wholesale & retail | 1992 |
| Target Technique.Co.Uk Ltd | Arts & recreation | 2012 |
| Tarrel Farmhouse Ltd | Hospitality | 2018 |
| Tartan Paint Project Ltd | Arts & recreation | 2025 |
| Tartan Training Ltd | Education | 2024 |
| Tartan Welders Ltd | Construction | 2019 |
| Taste of Orkney Limited | Professional & scientific | 2006 |
| Taste the Highlands Ltd | Administrative & support | 2026 |
| TAV Trading LP | | 2015 |
| Taylor Cars (Scotland) Ltd | Wholesale & retail | 2020 |
| Taylor Services Limited | Real estate | 2025 |
| Taylor Way Construction Ltd | Construction | 2024 |
| Taylor'D Masonry Ltd | Construction | 2025 |
| TB Electrical Highland Ltd | Construction | 2026 |
| TCP Electric Home Services Limited | Construction | 2025 |
| Tea Cafe Ltd | Hospitality | 2025 |
| Teaninich Castle Limited | Hospitality | 2018 |
| Tech Frontier Ltd | Professional & scientific | 2017 |
| Technocal Solutions Limited | Manufacturing | 2025 |
| Tefl Organisation Employee Ownership Trustees Limited | Professional & scientific | 2021 |
| Tefl Organisation Limited | Extraterritorial | 2013 |
| Tefl Scotland Ltd | Administrative & support | 2008 |
| Tehin ANS LP | | 2019 |
| Telsa Corporation LP | | 2016 |
| Tentmaker Creative Ltd | Professional & scientific | 2019 |
| Terras Forestry Company Limited | Agriculture & fishing | 2022 |
| Terras Properties Ltd | Real estate | 2025 |
| Test of China (Ming) Ltd | Hospitality | 2019 |
| Testme Allergies Ltd | Health & social care | 2023 |
| Testme Health Ltd | Wholesale & retail | 2025 |
| TG Autodoc Ltd | Wholesale & retail | 2023 |
| THE Allergist Ltd | Health & social care | 2023 |
| THE Asian Street Food Ltd | Hospitality | 2025 |
| THE Bistro (Lochcarron) Ltd | Hospitality | 2022 |
| THE Black Isle Partnership | Other services | 2001 |
| THE Black Isle Soap Company Limited | Manufacturing | 2024 |
| THE Book Dragon Bookshop Ltd | Wholesale & retail | 2026 |
| THE Cairn Digital Ltd | Information & communication | 2026 |
| THE Camanachd Association | Arts & recreation | 2005 |
| THE Castaway Catering Limited | Hospitality | 2019 |
| THE Chem Academy Ltd | Education | 2025 |
| THE Classroom (Nairn) Limited | Administrative & support | 2009 |
| THE Clay Studio Inverness Ltd | Arts & recreation | 2017 |
| THE Collective Inverness Ltd | Other services | 2024 |
| THE Collie Whisperer Ltd | Other services | 2025 |
| THE Cooking Club Limited | Hospitality | 2020 |
| THE CSP Partnership | | 1997 |
| THE Dolls House (Inverness) Ltd | Other services | 2015 |
| THE Engine Room Skye Ltd | Manufacturing | 2026 |
| THE Floor Centre Limited | Construction | 1989 |
| THE Future Group (Highland) Limited | Information & communication | 2010 |
| THE Gadget Refuge Highlands and Islands Limited | Other services | 2023 |
| THE Gallery (Inverness) Ltd. | Other services | 2003 |
| THE Gambian Education Limited | Water & waste | 2021 |
| THE Garden DEN Ltd | Manufacturing | 2021 |
| THE Gilded Lily Retail Limited | Wholesale & retail | 2025 |
| THE Glass House Inverness Ltd | Other services | 2025 |
| THE Grand Whisky Auction Limited | Wholesale & retail | 2018 |
| THE Great Glen Way Ltd | Extraterritorial | 2021 |
| THE Green Hall (Smithton) Ltd | Other services | 2010 |
| THE Head Gardener Inverness Ltd | Other services | 2007 |
| THE Highland Beekeeper Company Ltd | Manufacturing | 2024 |
| THE Highland Climbing Company Ltd | Administrative & support | 2023 |
| THE Highland Florist Ltd | Arts & recreation | 2022 |
| THE Highland Forge Inverness Ltd | Manufacturing | 2021 |
| THE Highland Hill Larder Ltd | Extraterritorial | 2022 |
| THE Highland Skincare Company Limited | Wholesale & retail | 2025 |
| THE Highlanders' Museum Limited | Education | 2010 |