| SENSPV5 Limited | Construction | 2026 |
| SENSPV6 Limited | Construction | 2026 |
| SENSPV7 Limited | Construction | 2026 |
| SENSPV8 Limited | Construction | 2026 |
| Sente Communications Ltd | Information & communication | 2004 |
| Sentinel Automated Manufacturing Limited | Manufacturing | 2024 |
| Sentinel Cast Solutions Limited | Manufacturing | 2022 |
| Sentinel Manufacturing Limited | Manufacturing | 2022 |
| Sentinel Medics Ltd | Wholesale & retail | 2026 |
| Sentinel Security Technicians Ltd | Administrative & support | 2009 |
| SER1 Limited | Professional & scientific | 2017 |
| Serendipities Ltd | Agriculture & fishing | 2010 |
| Serenity Plus Limited | Health & social care | 2019 |
| Serenity Waves Ltd | Health & social care | 2025 |
| Serioplast UK Ltd | Manufacturing | 2020 |
| Serious Business Ltd | Information & communication | 2025 |
| Sermo Creative Ltd | Professional & scientific | 2022 |
| Services by KJ Limited | Wholesale & retail | 2026 |
| Servopack Ltd | Wholesale & retail | 2022 |
| Ses-Sustainable Energy Services Ltd | Professional & scientific | 2022 |
| Settled Transition CIC | Education | 2024 |
| Seven Consultants Limited | Information & communication | 2009 |
| Seven Four Sports Group Ltd | Arts & recreation | 2021 |
| Seven Pixels Ltd | Information & communication | 2014 |
| Seven Salon Ltd | Other services | 2018 |
| Seven Trees Holdings Limited | Real estate | 2026 |
| Severn Accountancy Limited | Professional & scientific | 2008 |
| Severn Bridges Multi Academy Trust | Education | 2017 |
| Severn Chiropractic Ltd | Health & social care | 2010 |
| Severn Commercial Finance Ltd. | Financial services | 2025 |
| Severn Contract Cleaning Limited | Administrative & support | 2015 |
| Severn Diamond Ltd | Wholesale & retail | 2010 |
| Severn Farewells Limited | Other services | 2025 |
| Severn Farm Machinery Ltd | Manufacturing | 2013 |
| Severn Fitness Ltd | Administrative & support | 2021 |
| Severn Gymnastics and Trampoline Club Limited | Arts & recreation | 2014 |
| Severn Homes Limited | Real estate | 2008 |
| Severn Marine Design Ltd | Professional & scientific | 2017 |
| Severn Marketing Ltd | Professional & scientific | 2018 |
| Severn Mortgage and Protect Limited | Financial services | 2019 |
| Severn Orthotics Ltd | Health & social care | 2026 |
| Severn Osteopathy Clinic Limited | Health & social care | 2016 |
| Severn Private Health Ltd | Financial services | 2025 |
| Severn Promotions Company Limited | Arts & recreation | 1994 |
| Severn Renewables Ltd | Construction | 2025 |
| Severn Single PLY Ltd | Construction | 2017 |
| Severn Solutions Ltd | Information & communication | 2011 |
| Severn Structural Engineering Ltd | Professional & scientific | 2021 |
| Severn Tractor Hire Limited | Administrative & support | 2008 |
| Severn Trustees Ltd | Professional & scientific | 2018 |
| Severn Valley Construction Shropshire Limited | Construction | 2021 |
| Severn Valley Farmers Ltd | Agriculture & fishing | 2004 |
| Severn Valley Foodservice Limited | Other services | 2016 |
| Severn Valley Renewables Limited | Construction | 2014 |
| Severn X-Ray Supplies Limited | Professional & scientific | 1998 |
| Severnbell Sleepovers Ltd | Administrative & support | 2020 |
| Severnhaus Studio Ltd | Professional & scientific | 2026 |
| Severnshifters Ltd | Transport & logistics | 2025 |
| Sexual Violence Training and Consultancy Ltd | Professional & scientific | 2025 |
| SFT Property Services Limited | Real estate | 2025 |
| SFV Holdings Limited | Financial services | 2021 |
| SGE Secretaries Limited | Administrative & support | 2003 |
| SGP Commercial Management Ltd | Administrative & support | 2013 |
| SH Partnerships Limited | Construction | 2025 |
| Shackleton Consultants Ltd | Professional & scientific | 2002 |
| Shadow Facades Ltd | Professional & scientific | 2025 |
| Shanahan Holdings Ltd | Financial services | 2026 |
| Shape & Scape Ltd | Administrative & support | 2010 |
| Sharps Roofing Supplies Limited | Wholesale & retail | 2006 |
| Shaun Holyhead Limited | Construction | 2014 |
| Shawbury Foot Care Limited | Health & social care | 2018 |
| Shawbury Industrial Estate Management Company Ltd | Real estate | 2014 |
| Shawbury Service Station Trading Ltd | Wholesale & retail | 2023 |
| Shawcross Aran Ltd | Professional & scientific | 2007 |
| SHE Aesthetics Health & Wellness Ltd | Health & social care | 2024 |
| SHE Cosmetics Ltd | Wholesale & retail | 2024 |
| Sheet Road Management Company Limited | Households | 2020 |
| Sheinton Limited | Financial services | 2024 |
| Shelby Ventures Ltd | Wholesale & retail | 2018 |
| Shelf Company 2025 Limited | Professional & scientific | 2021 |
| Shelley Signs Limited | Manufacturing | 1968 |
| Shelta Bespoke Campers & Conversions Limited | Wholesale & retail | 2018 |
| Shelton Land Sourcing Services Ltd | Professional & scientific | 2025 |
| Shelton Planning Services Ltd | Professional & scientific | 2023 |
| Sheoak Limited | Professional & scientific | 2014 |
| Shepherd Supported Housing Ltd | Real estate | 2018 |
| Sherpa Properties Limited | Construction | 2005 |
| Sherston Property Limited | Construction | 1993 |
| Shields Transportation Ltd | Manufacturing | 2023 |
| Shifnal Carpets Ltd | Real estate | 2013 |
| Shinestar Group Ltd | Wholesale & retail | 2025 |
| Shingler Construction Limited | Construction | 2008 |
| Shingler Group Limited | Extraterritorial | 2020 |
| Shingler Homes (Baschurch) Limited | Construction | 2026 |
| Shingler Homes (Gobowen) Limited | Construction | 2026 |
| Shingler Homes (Nesscliffe) Ltd | Households | 2025 |
| Shingler Homes Limited | Construction | 1999 |
| Shingler Management Services Ltd | Households | 2018 |
| Shinzui Ltd | Wholesale & retail | 2024 |
| Shire Bright Ltd | Administrative & support | 2023 |