| Steelstock (Burton on Trent) Limited | Wholesale & retail | 2010 |
| Steer Your Future Driving School Limited | Education | 2025 |
| Stefan Kopinski Limited | Professional & scientific | 2022 |
| Stella Polaris Maris Ltd | Wholesale & retail | 2025 |
| Stella Property Services Limited | Real estate | 2017 |
| Stella PUB Co Limited | Hospitality | 2025 |
| Stellar Construction Consultants Limited | Professional & scientific | 2009 |
| Stelllary Ltd | Wholesale & retail | 2025 |
| Stemitup Ltd | Administrative & support | 2025 |
| Step Ahead Tutors Ltd | Education | 2025 |
| Step and Style UK Ltd | Wholesale & retail | 2018 |
| Step UP Digital Ltd | Wholesale & retail | 2022 |
| Step WON Limited | Wholesale & retail | 2024 |
| Step-In Educational Services Limited | Education | 2023 |
| Stephen Perry Limited | Professional & scientific | 2016 |
| Stephenson Brothers (Haulage) Limited | Transport & logistics | 2011 |
| Stepping Stones Agency Ltd | Administrative & support | 2022 |
| Stepping Stones Care Group Limited | Health & social care | 2023 |
| Stepping Stride Ltd | Education | 2024 |
| Stercap (Energy) Ltd. | Information & communication | 2005 |
| Sterling Bakery T/A Old Bridge Bakery Limited | Wholesale & retail | 2024 |
| Sterling Campaigns Limited | Professional & scientific | 2026 |
| Sterling Investment Solutions Ltd | Real estate | 2025 |
| Sterling Locks Limited | Manufacturing | 2016 |
| Sterling Luxe Properties Limited | Real estate | 2026 |
| Sterling Pharma Limited | Wholesale & retail | 2019 |
| Sterling Portfolio Limited | Real estate | 2023 |
| Sterling Properties LM Limited | Real estate | 2023 |
| Sterling Safety Limited | Households | 2020 |
| Sternwatch Ltd | Administrative & support | 2024 |
| Steten Ltd | Information & communication | 2025 |
| Stetig Ltd | Wholesale & retail | 2018 |
| Steve & Samantha's Consultancy Ltd | Health & social care | 2024 |
| Steven Maclean Estates Ltd | Real estate | 2024 |
| Steven Wild Limited | Construction | 2019 |
| Steves Carpets Online Limited | Administrative & support | 2017 |
| Steward Property Ltd | Real estate | 2026 |
| Stewart & Smith Ltd | Real estate | 2025 |
| STH Eco Solutions Ltd | Other services | 2023 |
| Sthesonium Ltd | Administrative & support | 2021 |
| Sticker Lane (Bradford) Ltd | Wholesale & retail | 2021 |
| Sticker Lane Ltd | Wholesale & retail | 2025 |
| Sticker N Things Ltd | Wholesale & retail | 2025 |
| Stickerpimps Limited | Extraterritorial | 2006 |
| Stine Hospitality Limited | Hospitality | 2017 |
| Stiq Consulting Ltd | Professional & scientific | 2023 |
| Stitchcrafts Haberdashery Ltd | Wholesale & retail | 2018 |
| Stitched by Farida Ltd | Professional & scientific | 2025 |
| STK Private Limited | Wholesale & retail | 2022 |
| STK Properties Ltd | Real estate | 2026 |
| STL Recovery Services Ltd | Transport & logistics | 2025 |
| STO Consult Limited | Professional & scientific | 2025 |
| STO Fire Safety Consultancy Ltd | Financial services | 2026 |
| Stobart Pet Foods Ltd | Wholesale & retail | 2023 |
| Stobart Premium Pet Food Ltd | Manufacturing | 2023 |
| Stobarts Bodyshop Limited | Wholesale & retail | 2022 |
| Stock Bargains Ltd | Wholesale & retail | 2023 |
| Stockbank Motor Group Limited | Wholesale & retail | 2020 |
| Stocked Ltd | Wholesale & retail | 2025 |
| Stockport Travel Ltd | Transport & logistics | 2023 |
| Stocks House Farm Management Company Limited | Real estate | 2006 |
| Stocks Makeup Limited | Wholesale & retail | 2024 |
| Stocksfield Building Services LLP | | 2002 |
| Stocksfield Construction Limited | Administrative & support | 1998 |
| Stocksfield Land Limited | Administrative & support | 2002 |
| Stocksfield Project Management Limited | Professional & scientific | 2006 |
| Stocksfield Property Limited | Real estate | 1991 |
| Stocktronics Ltd | Wholesale & retail | 2024 |
| Stody Consult Ltd | Transport & logistics | 2025 |
| Stone Cutter Developments Limited | Construction | 2016 |
| Stone Hall Property Ltd | Real estate | 2026 |
| Stone Taverns Limited | Hospitality | 2015 |
| Stonearc Investment Limited | Real estate | 2024 |
| Stonebridge Assets Ltd | Real estate | 2025 |
| Stonebridge Chinese Services Limited | Professional & scientific | 2004 |
| Stonebridge Developments Ltd | Construction | 2024 |
| Stonebrook Property Ltd | Real estate | 2025 |
| Stonecroft Holdings Limited | Professional & scientific | 2001 |
| Stonegate (Bradford) Ltd | Real estate | 2024 |
| Stonegate Automotive Ltd | Wholesale & retail | 2026 |
| Stonelea Management Limited | Real estate | 2002 |
| Stoneleigh Pavilions (Birkby) Limited | Real estate | 2009 |
| Stonelode Limited | Professional & scientific | 2017 |
| Stonemoor Developments Limited | Construction | 2026 |
| Stonewell Supply Ltd | Wholesale & retail | 2026 |
| Stonewood Holdings Group Ltd | Construction | 2026 |
| Stonewood KBB UK Ltd | Manufacturing | 2026 |
| Stoneyflex Ltd | Wholesale & retail | 2024 |
| Stop Shop Local Ltd | Wholesale & retail | 2024 |
| STOPSHOP118 Ltd | Wholesale & retail | 2024 |
| Storage and Distribution Solutions Limited | Hospitality | 2021 |
| Storage Design Solutions Ltd | Professional & scientific | 2026 |
| Storage Fife Ltd | Real estate | 2026 |
| Storage Units Fife Ltd | Real estate | 2026 |
| Store QA Ltd | Wholesale & retail | 2026 |
| Stores Group Limited | Professional & scientific | 1983 |
| Storey Transport Ltd | Transport & logistics | 2021 |
| Storm Courier Services Limited | Transport & logistics | 2001 |
| Storm Interactive Ltd | Information & communication | 2025 |
| Storm Proof Roofing Systems Limited | Construction | 2025 |