| Solina UK Holdings Limited | Wholesale & retail | 1999 |
| Solina UK Trading Limited | Manufacturing | 1963 |
| South Park Place Management Company Limited | Households | 2021 |
| South Pennine Academies | Education | 2011 |
| Southowram Chapel Management Company Limited | Households | 2008 |
| Soyo Projects Limited | Administrative & support | 2009 |
| Spectrum Dyers Limited | Manufacturing | 2004 |
| Speights House Management Company Limited | Households | 2007 |
| Spencer Metals Limited | Mining & quarrying | 2024 |
| Spinnings Management Limited | Households | 1986 |
| Spira Power Manufacturing Limited | Professional & scientific | 2026 |
| Spooky Box Club Limited | Administrative & support | 2014 |
| Sports Strategy Services Limited | Professional & scientific | 2024 |
| Springwell Motors Ltd | Wholesale & retail | 2023 |
| Square One (Halifax) Management Company Limited | Households | 2006 |
| Squirrel Heating Services Ltd | Other services | 2014 |
| SRJ & Co Limited | Financial services | 2012 |
| Srnz Limited | Professional & scientific | 2016 |
| Sspcc Events Limited | Hospitality | 2023 |
| ST. Mary's Road Huyton Management Limited | Households | 2001 |
| Stada Media Limited | Information & communication | 2014 |
| Stafford Manor Holdings Ltd | Construction | 2018 |
| Stallou Limited | Public administration | 2025 |
| Stampede Equestrian Limited | Wholesale & retail | 2017 |
| Stancliffe Stone Co. Limited | Mining & quarrying | 1989 |
| Standring Properties Limited | Real estate | 2025 |
| Steedland Limited | Real estate | 2012 |
| Steeple Aston Limited | Households | 2026 |
| Stephen Beck Associates Limited | Professional & scientific | 2000 |
| Stickfest Group Ltd | Professional & scientific | 2017 |
| Stone Shippers Limited | Mining & quarrying | 2000 |
| Stonebnk Developments Ltd | Construction | 2026 |
| Stoneleigh Investments Ltd | Real estate | 2018 |
| Stonemarket (Concrete) Limited | Professional & scientific | 2002 |
| Stonemarket Limited | Manufacturing | 1970 |
| STR Consulting Limited | Information & communication | 2005 |
| Strafford Properties (Developments) Limited | Real estate | 1959 |
| Strafford Properties Limited | Extraterritorial | 2015 |
| Strata Cctv Limited | Wholesale & retail | 2014 |
| Strategic Facilities Management Ltd | Administrative & support | 2014 |
| Sunn Harvest Solar Ltd | Construction | 2024 |
| Supers of Birmingham Ltd | Hospitality | 2017 |
| Sure Scale Ltd | Information & communication | 2020 |
| Sutton Transport Limited | Transport & logistics | 1997 |
| SW K9 Ltd | Administrative & support | 2026 |
| Swallow Architectural Coatings Limited | Construction | 2012 |
| Swann Rentals Ltd | Energy | 2020 |
| Swanrey Developments Ltd | Real estate | 2021 |
| Swanside Management Company Limited | Households | 2018 |
| Swem Limited | Financial services | 2014 |
| Swiffen Consulting Ltd | Information & communication | 2016 |
| Swimshark Ltd | Wholesale & retail | 2020 |
| Symphony Financial Advisers Ltd | Financial services | 2000 |
| Synagria Ltd | Professional & scientific | 2025 |
| Synergy Financial Solutions Limited | Financial services | 2008 |
| T & a Holdings Limited | Financial services | 2016 |
| T & C Property Search Limited | Real estate | 2008 |
| T & S Hogan Limited | Financial services | 2007 |
| T Consulting Limited | Professional & scientific | 2006 |
| T E Beaumont & SON Limited | Construction | 2020 |
| T.S. Harrison & Sons Limited | Manufacturing | 2014 |
| Tackle Corner Limited | Wholesale & retail | 2017 |
| Tapnet Ltd | Other services | 2019 |
| Tara Stone Estate Agency Ltd | Real estate | 2023 |
| Taste Fine Wines Ltd | Wholesale & retail | 2008 |
| Taylors Trailers Limited | Manufacturing | 1998 |
| Team Howell Ltd | Health & social care | 2023 |
| Tebs Holdings Limited | Real estate | 2023 |
| Techbelt Ltd | Manufacturing | 2002 |
| Technopeers Limited | Manufacturing | 2011 |
| Tectum Consultancy Ltd | Professional & scientific | 2023 |
| Temple Lifestyle Ltd | Arts & recreation | 2017 |
| Terberg DTS (UK) Limited | Wholesale & retail | 1998 |
| Thai Fever Limited | Hospitality | 2012 |
| Thames Valley Fire Protection Limited | Extraterritorial | 1998 |
| THE Aesthetic Space Ltd | Other services | 2021 |
| THE Asset Manager UK Ltd | Real estate | 2021 |
| THE Badrock Family Investment Co | Administrative & support | 2014 |
| THE Boatyard Residents Management Company Limited | Professional & scientific | 2011 |
| THE Bright Side of Life Limited | Real estate | 2005 |
| THE Brooksbank School Sports College | Education | 2011 |
| THE Campaign Group Ltd | Information & communication | 2019 |
| THE Car Way Ltd | Wholesale & retail | 2022 |
| THE Charles Walker Group Limited | Manufacturing | 1988 |
| THE Clever App Company Limited | Information & communication | 2016 |
| THE Dunn Deal Tearooms Limited | Hospitality | 2015 |
| THE Elms (Bramley) Management Company Limited | Real estate | 2006 |
| THE Fitness Suite Limited | Arts & recreation | 2014 |
| THE General Fire Appliance Company Limited | Professional & scientific | 1935 |
| THE Great British Bollard Company Limited | Professional & scientific | 2010 |
| THE Hardy Trading Company Limited | Administrative & support | 2011 |
| THE Hub at Trilab Ltd | Hospitality | 2025 |
| THE Kensington Place Management Company Limited | Households | 2001 |
| THE Links Brighouse Management Company Limited | Real estate | 2004 |
| THE Manor Tavern Ltd | Hospitality | 2019 |
| THE Milk Store Limited | Wholesale & retail | 2025 |
| THE NOA Collective Ltd | Manufacturing | 2022 |
| THE Oaklands (Castleton) Management Company Limited | Households | 2005 |
| THE ODD Group Ltd | Financial services | 2020 |
| THE ODD Mattress Company Limited | Manufacturing | 2002 |