| Skyline Vision Investments Ltd | Real estate | 2023 |
| Skyline Vision Ltd | Health & social care | 2022 |
| Skyline Wholesales Trading Ltd | Wholesale & retail | 2025 |
| Skylink Estates Limited | Real estate | 2025 |
| Skylord Estates Limited | Real estate | 2010 |
| Skyrace Limited | Administrative & support | 2022 |
| Skyrise Build Ltd | Construction | 2025 |
| Skyrock Logistics Limited | Hospitality | 2026 |
| Skys Properties Limited | Real estate | 2015 |
| Skyswings Ltd | Information & communication | 2025 |
| Skyview Builders Limited | Construction | 2009 |
| Skyview Developers Limited | Construction | 2023 |
| Skyview Group Limited | Real estate | 2021 |
| Skyward Realty Ltd | Construction | 2024 |
| Skyway Construct Ltd | Construction | 2023 |
| Skyway IT Services and Solutions Ltd | Information & communication | 2024 |
| Skyway Property Investment Ltd | Real estate | 2023 |
| Skyway Technology Ltd | Information & communication | 2013 |
| Skyways Express Ltd | Transport & logistics | 2015 |
| Skyways House Ltd | Administrative & support | 2026 |
| Skywish Ltd | Wholesale & retail | 2013 |
| Skyzu Limited | Transport & logistics | 2022 |
| SKZ Consulting Ltd | Professional & scientific | 2012 |
| SKZ London Ltd | Hospitality | 2025 |
| SL Car Mart Ltd | Wholesale & retail | 2024 |
| SL Car World Ltd | Wholesale & retail | 2026 |
| SL Construction Limited | Extraterritorial | 2017 |
| SL Roofing Specialists Limited | Construction | 2025 |
| SL9 the Packhorse Ltd | Real estate | 2018 |
| Slade Building & Construction Ltd | Construction | 2017 |
| Slam Global UK Limited | Professional & scientific | 2016 |
| Slatehaven Ltd | Professional & scientific | 2025 |
| Slav Carpentry Ltd | Construction | 2026 |
| Slav Construct Ltd | Construction | 2020 |
| Slbjewellery Ltd | Wholesale & retail | 2022 |
| Sleepwell Training Ltd | Education | 2025 |
| Sleipnir Solutions Ltd | Information & communication | 2024 |
| Slenzer Ltd | Wholesale & retail | 2025 |
| Slick Edge Media Ltd | Wholesale & retail | 2021 |
| Slid Real Estate Limited | Real estate | 2017 |
| Slider Shine Glass Ltd | Manufacturing | 2022 |
| Sliding Wardrobes 4 U Ltd | Wholesale & retail | 2015 |
| Slik Took Ltd | Wholesale & retail | 2024 |
| Slimply Ltd | Manufacturing | 2020 |
| Slimpop Ltd | Construction | 2024 |
| SLK Traders Ltd | Wholesale & retail | 2024 |
| Slmjr Ltd | Other services | 2008 |
| Slmsm Limited | Real estate | 2026 |
| Sloane Group Ltd | Real estate | 2021 |
| Sloannes Ltd | Professional & scientific | 2022 |
| Sloroc Systems Ltd | Administrative & support | 2026 |
| Slough Store & Halal Meat Ltd | Wholesale & retail | 2019 |
| Slow Dance Ventures Limited | Other services | 2011 |
| Slst Investments Limited | Real estate | 2025 |
| SLT Logistic Limited | Administrative & support | 2025 |
| SLV Serv Ltd | Construction | 2019 |
| SM ALI UK Ltd | Wholesale & retail | 2018 |
| SM Associates (Essex) Ltd | Professional & scientific | 2014 |
| SM CAB Services Limited | Transport & logistics | 2019 |
| SM Collections Ltd | Information & communication | 2023 |
| SM Diagnostics and Intervention Ltd | Health & social care | 2022 |
| SM Disruptors Limited | Wholesale & retail | 2025 |
| SM Drylining Ltd | Construction | 2019 |
| SM Fleets Ltd | Administrative & support | 2026 |
| SM Guarding Limited | Administrative & support | 2024 |
| SM Hospitality and Property Group Ltd | Hospitality | 2025 |
| SM Property London Ltd | Real estate | 2017 |
| SM Star Traders Ltd | Wholesale & retail | 2026 |
| SM Tech PVT Limited | Information & communication | 2024 |
| SM Travel & Tours Ltd | Financial services | 2024 |
| SM Windows & Doors Ltd | Construction | 2024 |
| Sm-Cars-Uk Ltd | Administrative & support | 2016 |
| Sm@Rt Bookkeeping Solutions Ltd | Professional & scientific | 2007 |
| SMA Accountancy & Advisory Ltd | Professional & scientific | 2026 |
| SMA Repair Centre Ltd | Wholesale & retail | 2020 |
| Smacho Ltd | Wholesale & retail | 2021 |
| Smahar Mart Ltd | Wholesale & retail | 2025 |
| Smahie Ltd | Real estate | 2020 |
| Small World Construction Limited | Construction | 2025 |
| Smallsquarecafe Ltd | Hospitality | 2022 |
| Smaqj Limited | Health & social care | 2020 |
| Smart Animalia Ltd | Information & communication | 2021 |
| Smart Basket Ltd | Wholesale & retail | 2025 |
| Smart Cart Global Limited | Administrative & support | 2025 |
| Smart Choice Rent Ltd | Other services | 2019 |
| Smart Cleaners Ltd | Administrative & support | 2011 |
| Smart Equip Ltd | Wholesale & retail | 2009 |
| Smart Facility Management (UK) Limited | Administrative & support | 2015 |
| Smart Fadez Ltd | Other services | 2025 |
| Smart Fashion Enterprises Limited | Other services | 2022 |
| Smart Fast Ltd | Wholesale & retail | 2025 |
| Smart FM Services Ltd | Administrative & support | 2024 |
| Smart Future Alliance Consul Tancy Ltd | Information & communication | 2017 |
| Smart Global Key Solutions Ltd | Construction | 2020 |
| Smart Green Construction Ltd | Construction | 2021 |
| Smart Green Delivery Ltd | Transport & logistics | 2023 |
| Smart Home Security System Ltd | Administrative & support | 2020 |
| Smart Homes Construction & Buliders Ltd | Construction | 2026 |
| Smart IT Solutions & Services Ltd | Information & communication | 2022 |
| Smart JET Washing Ltd | Administrative & support | 2023 |