| SGA Poole Limited | Manufacturing | 2024 |
| SGG Consultancy Ltd | Professional & scientific | 2013 |
| SGG Real Estate Ltd | Real estate | 2017 |
| SGG Solutions Ltd | Information & communication | 2023 |
| SGK Mechanical Solutions Ltd | Professional & scientific | 2022 |
| SGL Sandham Ltd | Real estate | 2023 |
| SGL Sandy Lane Ltd | Construction | 2025 |
| SGL Weston Ltd | Real estate | 2024 |
| SH Cleanskye Limited | Other services | 2025 |
| SH Electrical (Dorset) Ltd | Construction | 2018 |
| SH Labs Ltd | Financial services | 2025 |
| SHA Walk Ltd | Wholesale & retail | 2023 |
| Shabana Properties Limited | Real estate | 2025 |
| Shackleton Solutions Ltd | Health & social care | 2015 |
| Shadow CEO Ltd | Information & communication | 2016 |
| Shadow Design (Bournemouth) Ltd | Manufacturing | 2015 |
| Shaftesbury Country Park Limited | Other services | 2021 |
| Shaftesbury Lodge Management Limited | Households | 2011 |
| Shah Hamza Ltd | Wholesale & retail | 2025 |
| Shah Jehan Shiekh Ltd | Wholesale & retail | 2025 |
| Shahid ALI Sawdagar Ltd | Wholesale & retail | 2025 |
| Shahrukh Ltd | Wholesale & retail | 2025 |
| Shakeaway Global Limited | Wholesale & retail | 2024 |
| Shakers Takeaway Ltd | Hospitality | 2025 |
| Shakeware Limited | Extraterritorial | 2026 |
| Shalli Limited | Health & social care | 2006 |
| Shalli Management Limited | Real estate | 2025 |
| Shan HAI Chinese Ltd | Hospitality | 2022 |
| Shanah Tovah Capital Ltd | Real estate | 2022 |
| Shandon Lodge (Bournemouth) Limited | Households | 2012 |
| Shannon and Lauren Court RTM Company Limited | Households | 2011 |
| Shannon Sharp Hair Ltd | Other services | 2025 |
| Shanty Spirit IP Ltd | Extraterritorial | 2024 |
| Shanty Spirit Ltd | Manufacturing | 2017 |
| Shaping Ideas Limited | Information & communication | 2017 |
| Sharepoole Ltd | Professional & scientific | 2019 |
| Sharifa ALI Limited | Wholesale & retail | 2025 |
| Sharman Homes Ltd | Real estate | 2023 |
| Sharman Renewables Ltd | Construction | 2024 |
| Sharp Electrical (Dorset) Ltd | Construction | 2026 |
| Sharp Hair Limited | Other services | 2012 |
| Sharp Source Ltd | Wholesale & retail | 2025 |
| Sharp Techsolutions Ltd | Information & communication | 2017 |
| Sharp-Form Ltd | Other services | 2021 |
| Sharpe Labs Limited | Information & communication | 2025 |
| Sharpflow Consulting Ltd | Information & communication | 2025 |
| Shastonhill Property Ltd | Real estate | 2017 |
| Shatanah Archer Ltd | Extraterritorial | 2024 |
| Shaun Parker Mortgages Limited | Financial services | 2024 |
| Shaw Carpentry & Build Limited | Construction | 2022 |
| Shaw IS Design Limited | Professional & scientific | 2022 |
| Shawford Residential Limited | Real estate | 2025 |
| Shayner Ltd | Professional & scientific | 2026 |
| SHE CAN DJ Ltd | Hospitality | 2025 |
| SHE Ciso Limited | Other services | 2022 |
| SHE Loves Change Ltd | Information & communication | 2019 |
| Shebo Limited | Real estate | 2016 |
| Shed Beauty Limited | Wholesale & retail | 2023 |
| Sheila Holdings Limited | Real estate | 1998 |
| Shelby Solutions Ltd | Construction | 2023 |
| Shell Bay Dreams Ltd | Real estate | 2024 |
| Shell Bay Group Limited | Financial services | 2015 |
| Shellfish Direct Ltd | Agriculture & fishing | 2013 |
| Shelly West Mortgages Limited | Financial services | 2018 |
| Shemilt & Williams Ltd | Professional & scientific | 2011 |
| Shephard Squared Properties Limited | Real estate | 2017 |
| Shepherd Haulage Limited | Transport & logistics | 2023 |
| Sherborne Court (Poole) Management Company Limited | Households | 1978 |
| Sherlet Homes Ltd | Extraterritorial | 2023 |
| Sherway House Management Company Limited | Real estate | 1988 |
| Sherwood Enterprise Ltd | Wholesale & retail | 2020 |
| Sherwood Estates Limited | Construction | 2006 |
| Shield Scaffolding Services Ltd | Construction | 2017 |
| Shift Global Limited | Professional & scientific | 2020 |
| Shift Global Ventures Limited | Financial services | 2025 |
| Shimmers and Shines Ltd. | Manufacturing | 2024 |
| Shinelively Ltd | Wholesale & retail | 2025 |
| Shingle Point Limited | Real estate | 2015 |
| Shining Example Holiday Home Services Ltd | Administrative & support | 2026 |
| Shining Stars Childminding Ltd | Health & social care | 2024 |
| Shinsuway Limited | Administrative & support | 2012 |
| Ship Digital Ltd | Wholesale & retail | 2019 |
| Shipco Ltd | Wholesale & retail | 2026 |
| Shipshape Marine Ltd | Manufacturing | 2023 |
| Shipstal Limited | Professional & scientific | 2022 |
| Shipstal Management Limited | Households | 1994 |
| Shipthem Ltd | Transport & logistics | 2018 |
| Shires Court Freehold Limited | Professional & scientific | 2012 |
| Shiver Sauna Limited | Construction | 2024 |
| SHM Consulting (London) Limited | Professional & scientific | 2015 |
| Shobrawie Limited | Health & social care | 2021 |
| Shooting Training Solutions Ltd | Arts & recreation | 2011 |
| Shopodile Ltd | Wholesale & retail | 2025 |
| Shoponomy Ltd | Extraterritorial | 2020 |
| Shore (Poole) Limited | Financial services | 2026 |
| Shore Architecture Ltd | Professional & scientific | 2019 |
| Shore Boats Ltd | Manufacturing | 2021 |
| Shore Developments (South Coast) Ltd | Real estate | 2025 |
| Shore Educational Psychology Ltd | Education | 2025 |
| Shore Financial Planning Ltd | Financial services | 2012 |