| Springhead Court Management Company Limited | Households | 2009 |
| Springhill Management Company (Wilsden) Limited | Professional & scientific | 2002 |
| Springmill Autos Limited | Wholesale & retail | 2022 |
| Springmill Tyres Limited | Wholesale & retail | 2010 |
| Sprinkl Ltd | Hospitality | 2025 |
| Sprint Automotive Ltd | Wholesale & retail | 2018 |
| Sprint Group (UK) Limited | Extraterritorial | 2014 |
| Sprint Refrigeration & Air Conditioning Limited | Professional & scientific | 2000 |
| Sprint Refrigeration & Catering Equipment Ltd. | Other services | 1994 |
| Sprint Refrigeration Limited | Wholesale & retail | 1993 |
| Sprotrop Global Exports Ltd | Wholesale & retail | 2025 |
| SPS Bidco Limited | Financial services | 2022 |
| SPS Estates Limited | Real estate | 2021 |
| SPS Holdco Limited | Financial services | 2022 |
| SPS Investments Group Limited | Professional & scientific | 2011 |
| SPS Midco Limited | Financial services | 2022 |
| Spuddy's @ Parkgate Fisheries (Yorkshire) Ltd | Hospitality | 2024 |
| Spuddys Leeds Road Limited | Hospitality | 2023 |
| Spuddys Ltd | Hospitality | 2019 |
| Spudwarma Limited | Hospitality | 2024 |
| SPW PUB Management Limited | Hospitality | 2025 |
| SPX Digital Ltd | Information & communication | 2025 |
| SQ Capital Holdings Limited | Financial services | 2024 |
| SQC Limited | Real estate | 2020 |
| SQR Surveying Ltd | Professional & scientific | 2022 |
| Square Apple Inc Limited | Hospitality | 2012 |
| Square Global Events Limited | Wholesale & retail | 2025 |
| Square IT Ltd | Information & communication | 2022 |
| Square Oak Ltd | Real estate | 2023 |
| Square PAN Pizza Limited | Hospitality | 2018 |
| Squarefoot Investments (UK) Ltd | Real estate | 2006 |
| Squaremango Performance and Wellness Ltd | Wholesale & retail | 2025 |
| Squarepeg Broadcast Ltd | Information & communication | 2008 |
| Squeaky Squad Limited | Administrative & support | 2026 |
| Squeeze ME Juice Bar Ltd | Manufacturing | 2024 |
| SR Autos (Bradford) Ltd | Wholesale & retail | 2019 |
| SR Blinds Ltd | Wholesale & retail | 2022 |
| SR Hybrid Cars Limited | Wholesale & retail | 2025 |
| SR Properties Leicester Ltd | Financial services | 2020 |
| SR Recycling Limited | Wholesale & retail | 2026 |
| SR Upholstery Ltd | Manufacturing | 2024 |
| SR1111 Ltd | Health & social care | 2025 |
| SRA Group Ltd | Administrative & support | 2025 |
| SRG Trades Ltd | Wholesale & retail | 2025 |
| SRH Installations Limited | Construction | 2018 |
| SRI Living Ltd | Construction | 2015 |
| SRK (YS) Limited | Real estate | 2026 |
| SRK General Services Ltd | Transport & logistics | 2023 |
| SRM Finance Limited | Financial services | 2018 |
| Srobeson Investment Limited | Real estate | 2023 |
| SRS Cycling Co Ltd | Wholesale & retail | 2024 |
| SRT Franchises Limited | Financial services | 2025 |
| SS Aluminium Solutions Limited | Manufacturing | 2021 |
| SS Auto Detailing Ltd | Wholesale & retail | 2026 |
| SS BD9 Limited | Hospitality | 2025 |
| SS Cafe Trading AS Savi Kitchen Ltd | Hospitality | 2019 |
| SS Commerce Inc Ltd | Wholesale & retail | 2022 |
| SS Elite Holdings Ltd | Financial services | 2026 |
| SS Financials Ltd | Professional & scientific | 2024 |
| SS Foods Bradford Ltd | Wholesale & retail | 2025 |
| SS Home Store Ltd | Wholesale & retail | 2019 |
| SS Marketing & Consultant Limited | Professional & scientific | 2023 |
| SS Medical Health Ltd | Health & social care | 2013 |
| SS Medical Management Ltd | Health & social care | 2022 |
| SS Motoring Group Limited | Wholesale & retail | 2019 |
| SS Optom Ltd | Health & social care | 2016 |
| SS Pharmaceutics Limited | Health & social care | 2014 |
| SS Records Ltd | Information & communication | 2024 |
| SS94 Locums Limited | Health & social care | 2022 |
| Ssaa Portfolio Ltd | Real estate | 2020 |
| Ssafa Building Works Ltd | Other services | 2019 |
| SSB Market Ltd | Wholesale & retail | 2025 |
| SSC Leasing Limited | Administrative & support | 2017 |
| SSD Automotive Limited | Wholesale & retail | 2008 |
| SSD Global Limited | Wholesale & retail | 2014 |
| SSG Leisure Limited | Hospitality | 2026 |
| SSG Retail Group Limited | Real estate | 2022 |
| Ssgorg (UK) Limited | Other services | 2021 |
| Sshaukat Limited | Health & social care | 2020 |
| SSI Group Holdings Limited | Education | 2023 |
| Ssingeco Ltd | Agriculture & fishing | 2020 |
| SSK Hire Ltd | Transport & logistics | 2020 |
| Sslush Ltd | Hospitality | 2023 |
| SSM Media Ltd | Information & communication | 2025 |
| SSM Property Group Ltd | Real estate | 2022 |
| SSP01 Limited | Arts & recreation | 2025 |
| Sspersonalshopper Ltd | Wholesale & retail | 2024 |
| Ssprop Limited | Real estate | 2023 |
| Ssrs Promoters Limited | Information & communication | 2026 |
| SSS Associates Limited | Hospitality | 2003 |
| Ssscars Ltd | Wholesale & retail | 2023 |
| ST Andrews Tickets Ltd | Administrative & support | 2026 |
| ST Anthonys Project for Homeless Addicts | Health & social care | 2008 |
| ST Auto Breakers Ltd | Wholesale & retail | 2025 |
| ST Bede's Catholic Grammar School Trust Bradford | Education | 2015 |
| ST Blackburn Limited | Hospitality | 2025 |
| ST Food Store Ltd | Other services | 2023 |
| ST George Building RTM Company Ltd | Extraterritorial | 2025 |
| ST Halifax Limited | Hospitality | 2024 |
| ST Keighley Limited | Hospitality | 2023 |