| SQ Darnley Ltd | Other services | 2024 |
| SQ Denniston Ltd | Other services | 2025 |
| SQ Eaglesham Ltd | Other services | 2024 |
| SQ Great Western Ltd | Other services | 2024 |
| SQ Hamilton Ltd | Other services | 2025 |
| SQ Hardgate Ltd | Other services | 2025 |
| SQ Jackton Ltd | Other services | 2026 |
| SQ Kilmarnock Ltd | Other services | 2024 |
| SQ Kirkintilloch Ltd | Other services | 2024 |
| SQ Knightswood Ltd | Other services | 2024 |
| SQ London RD Ltd | Other services | 2026 |
| SQ LOW Waters Ltd | Other services | 2026 |
| SQ Montgomerie Park Ltd | Other services | 2026 |
| SQ Muirend Ltd | Other services | 2024 |
| SQ Newmains Ltd | Other services | 2025 |
| SQ OER Ltd | Other services | 2025 |
| SQ Partick Ltd | Other services | 2025 |
| SQ PRW Ltd | Other services | 2025 |
| SQ Renfrew Ltd | Other services | 2024 |
| SQ Shawlands Ltd | Other services | 2024 |
| SQ Uddingston Ltd | Other services | 2024 |
| SQ Water ROW Ltd | Other services | 2025 |
| SQS Laundry Ltd | Other services | 2026 |
| SR Motorhomes Ltd | Administrative & support | 2019 |
| SR Traders Paisley Ltd | Wholesale & retail | 2025 |
| SRG Property Ltd | Real estate | 2022 |
| SRH Traders UK Ltd | Wholesale & retail | 2018 |
| SRK Property Developments Ltd | Construction | 2022 |
| SRM Builders Ltd | Manufacturing | 2021 |
| SRW Electrical Group Ltd | Construction | 2026 |
| SS Brows & Nails Ltd | Other services | 2025 |
| SS Domestic & Office Services Ltd | Administrative & support | 2019 |
| SS Pharmaconsult Ltd | Health & social care | 2021 |
| SS Properties & Investments Ltd | Real estate | 2022 |
| SSA Energy Limited | Energy | 2025 |
| Ssim Ltd | Real estate | 2023 |
| Ssul Holdings Ltd | Financial services | 2025 |
| ST 24 Ltd | Hospitality | 2024 |
| ST Andrews Timber & Building Supplies (West) Limited | Wholesale & retail | 2002 |
| ST Clair Financial Planning Limited | Financial services | 2014 |
| ST Enoch Apartments Limited | Real estate | 2024 |
| ST Fillans Business Park Ltd | Real estate | 2026 |
| ST. Mirren Fitness Centre Ltd. | Arts & recreation | 2005 |
| ST. Mirren Food Store Ltd | Wholesale & retail | 2019 |
| ST. Mirren Football Club Ltd. (the) | Arts & recreation | 1905 |
| Stacked Supreme Limited | Hospitality | 2025 |
| Stafffinders Franchising Limited | Administrative & support | 1981 |
| Stafffinders Limited | Administrative & support | 1981 |
| Stafffinders Recruitment Ltd | Administrative & support | 2025 |
| Stag Doors Limited | Wholesale & retail | 2023 |
| Stag House Eight Limited | Professional & scientific | 1993 |
| Stags Dumbarton Ltd | Hospitality | 2023 |
| Standard Quality Inspection Limited | Professional & scientific | 2021 |
| Stanely Residential Limited | Real estate | 2024 |
| Staneshod Farm Developments Limited | Real estate | 2016 |
| Stanley Craig Ltd | Other services | 2020 |
| Star Habbies Bar Limited | Hospitality | 2021 |
| Star Trust Inn Managers Limited | Hospitality | 2021 |
| Starex One Ltd | Wholesale & retail | 2026 |
| Starkstrom (Scotland) Limited | Construction | 2016 |
| Starlex Scaffolding Ltd | Construction | 2023 |
| Starlex Scaffolding Services Ltd | Construction | 2025 |
| Startup Solutions Limited | Wholesale & retail | 2024 |
| Static Save Ltd. | Extraterritorial | 2005 |
| Stela Engineered Ltd | Information & communication | 2025 |
| Stellar Welding Engineering Consultancy Limited | Professional & scientific | 2023 |
| Stemran Limited | Administrative & support | 2024 |
| Stephen Annmarie Ciara Limited | Transport & logistics | 2016 |
| Stephen Mcallister Golf Ltd. | Arts & recreation | 2005 |
| Stephen Mcallister Golf Travel Ltd | Arts & recreation | 2019 |
| Stephen Potts Ltd | Construction | 2021 |
| Stepping Stones for Families | Education | 1988 |
| Sterling Care Group Limited | Health & social care | 2008 |
| Sterling Care Homes Limited | Health & social care | 1987 |
| Steven Cameron Funeral Directors Limited | Other services | 2024 |
| Stewart Property Investments (Scotland) Ltd | Real estate | 2023 |
| Stewart Stout Holdings Ltd | Real estate | 2025 |
| STG Property Ltd | Real estate | 2025 |
| Stirling Finds Ltd | Wholesale & retail | 2025 |
| Stirling Shaw (Barrhead) Ltd | Transport & logistics | 2026 |
| Stirlings Marine and Services Limited | Extraterritorial | 2014 |
| STN Restoration and Refurbishment Ltd | Construction | 2019 |
| Stockbridge Apartments Limited | Real estate | 2024 |
| Stonecare Memorials Ltd | Other services | 2006 |
| Stonefield Property Services Ltd | Construction | 2023 |
| Stonemoss Ltd | Professional & scientific | 2024 |
| Stonesbridge X11 Ltd | Wholesale & retail | 2025 |
| Stonespace Limited | Hospitality | 2003 |
| Storeprime.Co.Uk Ltd | Wholesale & retail | 2022 |
| Storm 7 Limited | Wholesale & retail | 2019 |
| Storm Consultants (Glasgow) Limited | Professional & scientific | 2022 |
| Storm Consultants Limited | Professional & scientific | 2020 |
| Stow Brae Ltd | Hospitality | 2023 |
| Strathbond Limited | Manufacturing | 1967 |
| Strathclyde Cables Limited | Manufacturing | 1984 |
| Strathclyde Cooperage Limited | Manufacturing | 1988 |
| Strathclyde Group Limited | Construction | 2016 |
| Strathclyde Sealants Ltd | Construction | 2021 |
| Strathclyde Surveys Ltd | Professional & scientific | 2010 |
| Strathdar Property Company Limited | Households | 1972 |