| Suffolk SUB Ltd | Hospitality | 2024 |
| Sufi Capital Limited | Financial services | 2020 |
| Sufi Traders 9426 Ltd | Wholesale & retail | 2026 |
| Sufort Shine Cleaners Ltd | Administrative & support | 2026 |
| SUG Kitchen Limited | Hospitality | 2026 |
| Suganthey Stores Limited | Wholesale & retail | 2023 |
| Sugar & Sweets Ltd | Hospitality | 2022 |
| Sugar Candi Ltd | Professional & scientific | 2023 |
| Sugar Roti Ltd | Hospitality | 2026 |
| Sugar's International Limited | Extraterritorial | 1984 |
| Sugga Shack Limited | Wholesale & retail | 2023 |
| Suhaani Ltd | Wholesale & retail | 2014 |
| Suhailah Ltd | Transport & logistics | 2019 |
| Suhrad Enterprise Limited | Wholesale & retail | 2023 |
| SUK Construction Ltd | Construction | 2022 |
| Sukan Travel Ltd | Administrative & support | 2012 |
| Sukh Haulage Ltd | Transport & logistics | 2021 |
| Sukha Oils Ltd | Wholesale & retail | 2022 |
| Sukhi Jewellery Limited | Wholesale & retail | 2019 |
| Sukhis Construction Ltd | Construction | 2015 |
| Sukhjinder Transport Ltd | Transport & logistics | 2025 |
| Sukhwinder Kaur Ltd | Hospitality | 2026 |
| Sukoon Travel Hub Ltd | Administrative & support | 2025 |
| Sulaj Construction Ltd | Construction | 2025 |
| Sulemans Property Investments Ltd | Real estate | 2020 |
| Suleyman Group (Holdings) Limited | Financial services | 2026 |
| Sulpac Ltd | Extraterritorial | 2020 |
| Sultan Ahmet Ltd | Hospitality | 2018 |
| Sultan Bros Ltd | Hospitality | 2024 |
| Sultan Lounge Ltd | Financial services | 2016 |
| Sultan Optics Ltd | Health & social care | 2023 |
| Sultan Refinery Ltd | Wholesale & retail | 2026 |
| Sultan Service and Installation Ltd | Construction | 2025 |
| Sultan Shisha Lounge Ltd | Hospitality | 2025 |
| Sultana Property Investments Ltd | Real estate | 2025 |
| Sultan’S Events Solution Ltd | Hospitality | 2024 |
| Suly Food Ltd | Wholesale & retail | 2023 |
| SUM Total Consulting Limited | Professional & scientific | 2022 |
| Sumair Optics Ltd | Health & social care | 2024 |
| Sumaiyya Atcha Holdings Limited | Financial services | 2023 |
| Sumall Builders Ltd | Construction | 2026 |
| Suman Shivshankar Limited | Households | 2021 |
| Sumayyah Ltd | Health & social care | 2024 |
| Sumeya Jakhura Limited | Other services | 2008 |
| Sumi Holdings Ltd | Real estate | 2025 |
| Sumit Communications Ltd | Professional & scientific | 2024 |
| Summa Consulting Limited | Other services | 2017 |
| Summer Bloom Limited | Health & social care | 2023 |
| Summer Willow Limited | Real estate | 2020 |
| Summerfield Flair Ltd | Hospitality | 2015 |
| Summersengineering Ltd | Professional & scientific | 2023 |
| Summerville Wood Management Company Limited | Administrative & support | 1997 |
| Summit Corporation Ltd | Construction | 2021 |
| Summit Edge Education Ltd | Education | 2025 |
| Summit Investco Limited | Financial services | 2020 |
| Summit One Ltd | Professional & scientific | 2019 |
| Summit Servizes Ltd | Information & communication | 2025 |
| Summitcore Management Limited | Professional & scientific | 2026 |
| Summitcraft CIC | Education | 2026 |
| Summitcraft Leadership Ltd | Other services | 2026 |
| Sumon Courier Services Limited | Transport & logistics | 2023 |
| Sumpal Investments Limited | Real estate | 2021 |
| Sumraspal Investments Limited | Real estate | 2026 |
| Sun & DEE Ltd | Real estate | 2023 |
| Sun Accountants Limited | Professional & scientific | 2002 |
| Sun Energy Solutions Ltd | Wholesale & retail | 2024 |
| Sun Garments Ltd | Manufacturing | 2019 |
| Sun Global Trade Ltd | Wholesale & retail | 2024 |
| Sun Mobile Gaming Limited | Extraterritorial | 2005 |
| Sun Rise Driving Academy Ltd | Education | 2025 |
| Sun Textile UK Limited | Professional & scientific | 2012 |
| Sun Thai Massage Ltd | Other services | 2025 |
| Sun X Star Ltd | Wholesale & retail | 2019 |
| Sunbeam Supreme Group Limited | Professional & scientific | 2014 |
| Sunburst Properties Limited | Households | 1996 |
| Sunco Knitwear Limited | Wholesale & retail | 2015 |
| Sunday Manor Ltd | Wholesale & retail | 2025 |
| Sundeep Dhillon Trading Ltd | Extraterritorial | 2019 |
| Sunderland Hindu Cultural Society C.I.C. | Health & social care | 2025 |
| Sundial Group Limited | Hospitality | 1997 |
| Sundial Trading Limited | Manufacturing | 2013 |
| Sundus Textiles Ltd | Manufacturing | 2025 |
| Sunflower Spalding Cash and Carry Ltd | Transport & logistics | 2015 |
| Sunflower Staffing Solutions Ltd | Administrative & support | 2025 |
| Sunita Bhogal Investments Ltd | Financial services | 2025 |
| Sunita Bhogal Pattani Ltd | Health & social care | 2025 |
| Sunita Limited | Health & social care | 2010 |
| Sunkim Holdings Limited | Financial services | 2016 |
| Sunkim Limited | Extraterritorial | 2016 |
| Sunlight Innovations Ltd | Real estate | 2025 |
| Sunlight Systems Limited | Wholesale & retail | 1993 |
| Sunnah Natural Ltd | Wholesale & retail | 2022 |
| Sunnah Outfits Ltd | Wholesale & retail | 2025 |
| Sunnah Tech Ltd | Information & communication | 2025 |
| Sunnier Property Group Ltd | Real estate | 2019 |
| Sunningdale Carriage Company Limited | Wholesale & retail | 1972 |
| Sunningdale Landscape Supplies Limited | Wholesale & retail | 2004 |
| Sunny (Euro) Ltd | Wholesale & retail | 2016 |
| Sunny and Brothers Limited | Wholesale & retail | 2021 |
| Sunny Autos Ltd | Wholesale & retail | 2018 |