| Sunita Beattie Limited | Information & communication | 2019 |
| Sunjeet Khela Ltd | Wholesale & retail | 2021 |
| Sunken Studio Ltd | Manufacturing | 2019 |
| Sunkissed Cottage Ltd | Real estate | 2021 |
| Sunlight Taverns Limited | Hospitality | 2026 |
| Sunlit Consultants Ltd | Professional & scientific | 2019 |
| Sunnah Engineering Ltd | Professional & scientific | 2024 |
| Sunnars Asset (UK) Limited | Real estate | 2018 |
| Sunni Harlen Homes Ltd | Real estate | 2025 |
| Sunningdale Care Limited | Health & social care | 2011 |
| Sunningdale Lodge Management Company Ltd | Households | 2024 |
| Sunningdale Lodge RTM Company Limited | Households | 2017 |
| Sunny Convenience Ltd | Wholesale & retail | 2025 |
| Sunny Day Capital Limited | Financial services | 2010 |
| Sunny Day Gentian (Abingdon) Limited | Real estate | 2020 |
| Sunny Day Property (NO. 1) Limited | Extraterritorial | 2007 |
| Sunny Day Property (NO. 2) Limited | Extraterritorial | 2007 |
| Sunny Day Property Holdings Limited | Financial services | 2008 |
| Sunny Day Property Limited | Financial services | 2008 |
| Sunny Day Property Trading LLP | | 2015 |
| Sunny Day Trading | Real estate | 1999 |
| Sunny Hill Properties Limited | Real estate | 2020 |
| Sunny House 888 Ltd | Hospitality | 2026 |
| Sunny Mugs Limited | Wholesale & retail | 2025 |
| Sunny Property Services Ltd | Real estate | 2022 |
| Sunny Spells & Co Limited | Other services | 2020 |
| Sunnybank Farm (Junction 27) Limited | Construction | 2020 |
| Sunnydrive Properties Limited | Extraterritorial | 2018 |
| Sunnyproductionz Ltd | Construction | 2025 |
| Sunnyside (Lofthouse Gate) Estate Company Limited(The) | Real estate | 1933 |
| Sunnyside Early Years and Childcare Limited | Health & social care | 2015 |
| Sunnyside Properties Limited | Real estate | 2022 |
| Sunnyside Solutions Ltd | Professional & scientific | 2022 |
| Sunora Holidays Ltd | Administrative & support | 2026 |
| Sunrise House of Prayer (U.K.) C.I.C. | Arts & recreation | 2025 |
| Sunrise Restaurant Ltd | Hospitality | 2025 |
| Sunrisers Leeds Limited | Arts & recreation | 2019 |
| Sunset Business Solutions Ltd | Information & communication | 2005 |
| Sunset Hotel Ltd | Hospitality | 2025 |
| Sunshine Auto Electric (Yorkshire) Ltd | Other services | 2026 |
| Sunshine Community Nursery Ltd | Education | 2017 |
| Sunshine Dwellings Limited | Financial services | 2021 |
| Sunshine Habesha Ltd | Hospitality | 2025 |
| Sunstead Ltd | Agriculture & fishing | 2023 |
| Sununguro Limited | Professional & scientific | 2020 |
| Sunuser Limited | Construction | 1981 |
| Supa Sofa Leeds Limited | Wholesale & retail | 2017 |
| Supacare Agency Ltd | Health & social care | 2018 |
| Supaideas Limited | Wholesale & retail | 2012 |
| Supamarkets Ltd | Hospitality | 2025 |
| Supasplit Limited | Manufacturing | 2008 |
| Super Barber (Guiseley) Ltd | Other services | 2022 |
| Super Bowlz Group Limited | Financial services | 2024 |
| Super Bowlz Leeds Limited | Hospitality | 2024 |
| Super Bowlz Manchester Limited | Hospitality | 2024 |
| Super Car (Leeds) Ltd | Administrative & support | 2017 |
| Super Ceramics (North) Limited | Professional & scientific | 2016 |
| Super Ceramics (Yorkshire) Limited | Professional & scientific | 2011 |
| Super Ceramics Limited | Wholesale & retail | 2000 |
| Super Friendz Limited | Arts & recreation | 2013 |
| Super Layzer Limited | Information & communication | 2026 |
| Super Motors Group Limited | Wholesale & retail | 2017 |
| Super Plus Cleaning Services Limited | Other services | 2007 |
| Super Project Ltd | Wholesale & retail | 2022 |
| Super Self Image Ltd | Information & communication | 2017 |
| Super Shine Leeds Ltd | Wholesale & retail | 2026 |
| Super Softee Limited | Hospitality | 2026 |
| Super Valu Supermarkets Limited | Wholesale & retail | 1988 |
| Superb Cleaning Ltd | Administrative & support | 2025 |
| Supercar Owner Ltd | Administrative & support | 2022 |
| Supercar Owner Tours Ltd | Administrative & support | 2022 |
| Supercomputer Limited | Real estate | 2002 |
| Supercore Ltd | Administrative & support | 2021 |
| Superequip Limited | Wholesale & retail | 2001 |
| Superfatlaces & Socks Ltd. | Wholesale & retail | 2013 |
| Superfood Market Online Ltd | Wholesale & retail | 2014 |
| Superfox Ltd | Real estate | 2003 |
| Superior Cleaning Solutions Ltd | Administrative & support | 2025 |
| Superior Finance Limited | Professional & scientific | 2015 |
| Superior Paving Yorkshire Ltd | Administrative & support | 2023 |
| Superior Shingle Limited | Construction | 2025 |
| Superior Software Limited | Information & communication | 1983 |
| Supermaidservice. Ltd | Administrative & support | 2023 |
| Supernova Record Label Ltd | Information & communication | 2021 |
| Supersonic Creative Holdings Limited | Professional & scientific | 2026 |
| Supersonic Creative Limited | Professional & scientific | 2022 |
| Superstore Enterprises Ltd | Wholesale & retail | 2009 |
| Superstore Pro Ltd | Wholesale & retail | 2024 |
| Supertan Sunbeds Ltd | Administrative & support | 2013 |
| Supervac Ltd | Manufacturing | 2002 |
| Supervents Ltd | Manufacturing | 2018 |
| Supervillainhq Ltd | Wholesale & retail | 2026 |
| Suphawadee Thai Spa Ltd | Other services | 2015 |
| Supplements Heaven Limited | Wholesale & retail | 2011 |
| Supply Chain Futures Limited | Extraterritorial | 2009 |
| Supply Education Limited | Financial services | 2014 |
| Supply Interiors Limited | Professional & scientific | 2005 |
| Supply Lens Ltd | Information & communication | 2020 |
| Supply ME Ltd | Administrative & support | 2018 |
| Support After Rape and Sexual Violence Leeds (Sarsvl) | Health & social care | 2010 |