| Spurlife Ltd | Wholesale & retail | 2021 |
| SPV Healthcare Resourcing Limited | Administrative & support | 2023 |
| Square Metre Project Management Ltd | Construction | 2010 |
| Squared Circle Property Limited | Real estate | 2021 |
| Squareone Architecture Ltd | Professional & scientific | 2018 |
| Squirrel R&D Limited | Information & communication | 2025 |
| SR Accountancy Services Ltd | Professional & scientific | 2016 |
| SR Consultancy 6 Ltd | Wholesale & retail | 2020 |
| SR Property Investment Services Ltd | Real estate | 2021 |
| SR Stickit Limited | Manufacturing | 2021 |
| SRG Property Group (Consultancy) Ltd | Professional & scientific | 2023 |
| SRG Property Group Ltd | Construction | 2023 |
| SRI Lankan Society of Bedfordshire CIC | Other services | 2026 |
| SRI Properties Ltd | Real estate | 2019 |
| Sriven Homes Ltd | Real estate | 2022 |
| SRK Engineering PTE Ltd | Wholesale & retail | 2025 |
| SRQ Developments Ltd | Professional & scientific | 2021 |
| SRS8 Limited | Financial services | 2022 |
| Srsrm Limited | Administrative & support | 2015 |
| SS & SH Properties Ltd | Real estate | 2016 |
| SS Business Group Ltd | Hospitality | 2020 |
| SS Business Support Ltd | Administrative & support | 2022 |
| SS Capital Ltd | Real estate | 2014 |
| SS Tech Services Ltd | Information & communication | 2019 |
| SSA Property Management Ltd | Real estate | 2018 |
| Ssak Properties Ltd | Real estate | 2025 |
| SSD & Co Developers Ltd | Real estate | 2014 |
| SSG Community Solutions | Arts & recreation | 2014 |
| SSG Property Management Ltd | Households | 2020 |
| SSG Services (EST 2003) Limited | Arts & recreation | 2004 |
| SSH Wardrobes Ltd | Construction | 2024 |
| SSK Architects Ltd | Professional & scientific | 1999 |
| Sskusha Limited | Wholesale & retail | 2020 |
| Sskusp Ltd | Wholesale & retail | 2023 |
| SSL (Holdings) Limited | Professional & scientific | 2012 |
| Ssnj Roofing&Building Ltd | Construction | 2025 |
| SSP Couriers Limited | Other services | 2025 |
| SSP PROPERTIES04 Limited | Real estate | 2017 |
| SSS Vision Limited | Health & social care | 2022 |
| SST Amusements Ltd | Arts & recreation | 2021 |
| SST Food Comply Ltd | Professional & scientific | 2025 |
| SST Recycling Bedford Ltd | Water & waste | 2024 |
| ST 2003 Ltd | Information & communication | 2025 |
| ST Albans Property Limited | Real estate | 2017 |
| ST Albans Woodland Burial Trust | Health & social care | 2006 |
| ST Augustines Road Residents Association Limited | Households | 1996 |
| ST Bede's House Management Company Limited | Households | 1988 |
| ST Helena Restaurant Limited | Hospitality | 2001 |
| ST James Court (Bedford) Management Company Limited | Other services | 1975 |
| ST John's Court (Biggleswade) Limited | Households | 2001 |
| ST Mary's Close Management Limited | Real estate | 1997 |
| ST Neots Windows & Conservatories Ltd | Wholesale & retail | 1997 |
| ST. Anne's Court (Hitchin) Management Company Limited | Households | 1990 |
| ST. Bedes (Bedford) Management Company Limited | Households | 1988 |
| ST. Cuthberts Properties Limited | Households | 1988 |
| ST. Johns (Bedford) Limited | Construction | 2008 |
| ST. Leonards Close Ltd | Households | 2019 |
| ST. Neots Fencing Company Ltd | Construction | 2007 |
| ST. Peters Court (Potton) Management Company Limited | Households | 1990 |
| ST. Peters Green Ltd. | Real estate | 1989 |
| ST666 Limited | Hospitality | 2022 |
| Stable Hire G C Ltd | Real estate | 2023 |
| Stablehire Property Ltd | Real estate | 2017 |
| Stag Property Holdings Ltd | Real estate | 2025 |
| Stage ACT International Limited | Information & communication | 2022 |
| Stagg Estates Holdings Limited | Financial services | 2025 |
| Stagg Property Services Limited | Construction | 2001 |
| Stagsden Homes Ltd | Real estate | 2024 |
| Stairservice Ltd | Construction | 2023 |
| Stalino Horses Ltd | Other services | 2025 |
| Stamford Consultancy Ltd | Professional & scientific | 2019 |
| Stamford House Securities Limited | Administrative & support | 2015 |
| Stamp Addicts Limited | Arts & recreation | 2022 |
| Stamp Advisory Group Ltd | Manufacturing | 2026 |
| Stan Catering Limited | Hospitality | 2020 |
| Stan Holdings Limited | Financial services | 2016 |
| Stan in Business Limited | Construction | 2014 |
| Stan Tucker Engineering Ltd | Professional & scientific | 2018 |
| Standby Technical Support Ltd | Arts & recreation | 2014 |
| Standell Components (Holdings) Limited | Financial services | 2011 |
| Standfirst Publishing Limited | Information & communication | 2002 |
| Standish Advisory Services Limited | Administrative & support | 2013 |
| Stanecor Food & Beverage Limited | Hospitality | 2017 |
| Stanfix Limited | Construction | 2009 |
| Stani Garage Ltd | Wholesale & retail | 2025 |
| Stanlec Services Ltd | Construction | 2022 |
| Stanley Thurston & Sons Limited | Arts & recreation | 1949 |
| Star Cafe & Takeaway Ltd | Hospitality | 2021 |
| Star Cafe (Bedford) Limited | Hospitality | 2017 |
| Star Club (1960) CIC | Arts & recreation | 2022 |
| Star Club Bedford Limited | Real estate | 1985 |
| Star Direct Ltd | Transport & logistics | 2026 |
| Star Nails 95 Ltd | Other services | 2024 |
| Star Treat Ltd | Hospitality | 2017 |
| Starbucks Village Store Ltd | Wholesale & retail | 2018 |
| Starcontrol Limited | Professional & scientific | 1984 |
| Stardust Solutions LLP | | 2025 |
| Starfield Developments Limited | Construction | 2005 |
| Starlight Creative Marketing Limited | Manufacturing | 2018 |
| Starmar Ltd | Transport & logistics | 2020 |