| Soul and Reggae Parties Ltd | Administrative & support | 2023 |
| Soul Developments UK Ltd | Real estate | 2022 |
| Souledout Global Entertainment Limited | Arts & recreation | 2010 |
| Soulsistercookswithlove Ltd | Hospitality | 2021 |
| Soundandvisionentertainmentmanagement Ltd | Professional & scientific | 2025 |
| Sounds Better 2022 C.I.C. | Education | 2016 |
| Souqstreet Ltd | Wholesale & retail | 2024 |
| SOURCE57 Limited | Hospitality | 2018 |
| Sourced by Ayesha Ltd | Wholesale & retail | 2025 |
| Sourced Property Group Ltd | Real estate | 2026 |
| Sourced Visions Ltd | Wholesale & retail | 2023 |
| Sourcifyofficials Limited | Wholesale & retail | 2026 |
| Sourcing Spaces Ltd | Real estate | 2024 |
| South African Sauces Limited | Wholesale & retail | 2017 |
| South Asia News Ltd | Information & communication | 2019 |
| South BMI Limited | Real estate | 2024 |
| South Breeze Estates Ltd | Real estate | 2021 |
| South Breeze U.K. Limited | Other services | 2017 |
| South East Pharma Limited | Wholesale & retail | 2026 |
| South Eastern Group Limited | Professional & scientific | 2010 |
| South Essex Sealed Units Ltd | Construction | 2018 |
| South Gate Management Ltd | Real estate | 2025 |
| South Indian Food and Beverages Ltd | Hospitality | 2024 |
| South London Learning Centre Limited | Education | 2012 |
| South Ockendon Ltd | Real estate | 2018 |
| South Park Commercial Holdings Limited | Real estate | 2023 |
| South Road 9 Ltd | Real estate | 2025 |
| South Road Holdings Ltd | Real estate | 2024 |
| South West PJ Holdings Ltd | Hospitality | 2026 |
| South Woodford Ltd | Administrative & support | 2016 |
| Southall Bicycles Ltd | Wholesale & retail | 2026 |
| Southall Ebikes Ltd | Wholesale & retail | 2026 |
| Southbray Associates Ltd | Other services | 2007 |
| Southbreeze Trading Ltd | Wholesale & retail | 2024 |
| Southchurch Fire Protection Ltd | Construction | 2022 |
| Southchurch Props Ltd | Households | 2019 |
| Southen Grove Ltd | Other services | 2023 |
| Southend Central Hotel Ltd | Hospitality | 2017 |
| Southend Guest House Ltd | Hospitality | 2014 |
| Southend Inn Hotel Ltd | Hospitality | 2015 |
| Southend Pier Coffee Ltd | Hospitality | 2026 |
| Southgate Property Services Ltd | Construction | 2018 |
| Southland Morocco Tours and Travels Ltd | Administrative & support | 2026 |
| Southreach Limited | Information & communication | 2020 |
| Southview Homes Limited | Professional & scientific | 2009 |
| Southwill Limited | Real estate | 2014 |
| Southworks Associates Ltd | Professional & scientific | 2019 |
| Soutrhall Travels UK Limited | Wholesale & retail | 2025 |
| Sova Healthcare Redbridge Ltd | Health & social care | 2019 |
| Sovereign Safe Deposit Centres Ltd | Administrative & support | 2014 |
| Soyka Group Ltd | Wholesale & retail | 2017 |
| SP Catering Events Ltd. | Hospitality | 2016 |
| SP Empire Traders London Ltd | Hospitality | 2025 |
| SP Eyelashes Ltd | Wholesale & retail | 2025 |
| SP Health Consulting Ltd | Health & social care | 2026 |
| SP Sivas Tutors Inspired Learning Ltd | Education | 2015 |
| SP Sivas Tutors Online Learning Ltd | Education | 2020 |
| SP Ventures Limited | Real estate | 2019 |
| Sp&M Maintenance Ltd | Construction | 2024 |
| Spa Wars Ltd | Wholesale & retail | 2019 |
| Space Design Studios Limited | Professional & scientific | 2008 |
| Space Impact Limited | Real estate | 2004 |
| Spaced Homes Ltd | Real estate | 2023 |
| Spacemaker Solutions Limited | Construction | 2009 |
| Spade Enterprises (PVT) Limited | Wholesale & retail | 2014 |
| Spago Trans Ltd | Transport & logistics | 2012 |
| Span Technologies Ltd | Information & communication | 2022 |
| Spanish Pizza & Grill Ltd | Hospitality | 2019 |
| Spanish World Academy Ltd | Education | 2025 |
| Spar Cons Ltd | Professional & scientific | 2016 |
| Spares Infotech Limited | Information & communication | 2012 |
| Sparestuff Limited | Administrative & support | 2017 |
| Spark Electrical Services Ltd | Energy | 2025 |
| Spark Metal Trading Limited | Wholesale & retail | 2024 |
| Spark Snap Ltd | Wholesale & retail | 2025 |
| Sparkflow Solutions Ltd | Construction | 2026 |
| Sparkle and Glitter Ltd | Arts & recreation | 2026 |
| Sparkle Generation UK Ltd | Health & social care | 2017 |
| Sparkle IT Ltd | Information & communication | 2023 |
| Sparkle Letting Ltd | Real estate | 2026 |
| Sparkle Orbit Ecom Ltd | Wholesale & retail | 2026 |
| Sparkle Palace Ltd | Wholesale & retail | 2020 |
| Sparklesphere Cleaning Ltd | Administrative & support | 2024 |
| Sparkline Events Limited | Administrative & support | 2025 |
| Sparkline Group Ltd | Professional & scientific | 2025 |
| Sparkling Investments Ltd | Real estate | 2020 |
| Sparkling Maids Cleaning Services Ltd | Administrative & support | 2017 |
| Sparkling Properties London Limited | Real estate | 2025 |
| Sparklite Limited | Other services | 2023 |
| Sparkspectrum Services Limited | Manufacturing | 2024 |
| Sparky Boyz Ltd | Construction | 2023 |
| SPARKY4YOU Ltd | Construction | 2025 |
| Sparrow Management Consultant Limited | Information & communication | 2014 |
| Spartan Productions Limited | Information & communication | 2014 |
| Spartan Properties Limited | Real estate | 2019 |
| Spartan Secure Services Ltd | Administrative & support | 2026 |
| Spas Drylining Ltd | Construction | 2025 |
| Spda Limited | Other services | 2020 |
| Spear Tools Hire Ltd | Administrative & support | 2024 |
| Spearhead Holdings Ltd | Real estate | 2021 |