| Shabbir Brothers Ltd | Wholesale & retail | 2026 |
| Shacks PVT Ltd | Real estate | 2024 |
| Shad Trading Ltd | Transport & logistics | 2018 |
| Shadbolt Plastering Ltd | Construction | 2021 |
| Shades of Leather Limited | Wholesale & retail | 2014 |
| Shaf Trading Ltd | Real estate | 2025 |
| Shagufta'Z Ltd | Real estate | 2020 |
| Shahida Trading Limited | Transport & logistics | 2017 |
| Shahra Ltd | Professional & scientific | 2021 |
| Shahz Holdings Ltd | Real estate | 2024 |
| Shair Trading Ltd | Transport & logistics | 2024 |
| Shaj Sells Limited | Wholesale & retail | 2025 |
| Shakes & Flakes Ltd | Hospitality | 2019 |
| Shakoor Associates Ltd | Real estate | 2019 |
| Shakti Financials Limited | Professional & scientific | 2008 |
| Shaldon Property Ltd | Real estate | 2023 |
| Shameer Driving School Ltd | Education | 2024 |
| Shamy Beauty Parlour Limited | Other services | 2016 |
| Shangrilla Fashions Ltd | Other services | 2016 |
| Shankar Retail Trading Ltd | Wholesale & retail | 2017 |
| Shar Shar's Cleaning Services Ltd | Administrative & support | 2025 |
| Shareef Trading Limited | Wholesale & retail | 2016 |
| Sharif Goldsmith Limited | Manufacturing | 2023 |
| Sharif Jewellers Ltd. | Wholesale & retail | 2012 |
| Sharp Engineering Limited | Construction | 2022 |
| Shawarma Palace Limited | Hospitality | 2025 |
| Shaz JP UK Limited | Wholesale & retail | 2025 |
| Shaz Trading London Ltd | Transport & logistics | 2023 |
| Shaztech Limited | Information & communication | 2025 |
| Sheeraz Trading Limited | Public administration | 2014 |
| Sheero Homes Ltd | Real estate | 2024 |
| Shehara Netmi Confectionery UK Limited | Manufacturing | 2023 |
| Sheikh Motors Ltd | Wholesale & retail | 2024 |
| Shene Valley Catering Limited | Hospitality | 2015 |
| Sherlina NYM Ltd | Professional & scientific | 2020 |
| Shgw Properties Limited | Real estate | 2017 |
| Shibui-Spaces Ltd. | Real estate | 2017 |
| Shift Productions Ltd | Health & social care | 2024 |
| Shifteasy Limited | Construction | 2024 |
| Shimmers London Ltd | Other services | 2015 |
| Shin Venture Holds Ltd | Financial services | 2024 |
| Shin Venture Ltd | Hospitality | 2023 |
| Shin Venture Property Investment Ltd | Real estate | 2026 |
| Shining Light Care Limited | Health & social care | 2021 |
| Shipon & Mitu Ltd | Transport & logistics | 2021 |
| Shiraz Services Ltd | Wholesale & retail | 2020 |
| Shooting Buds Childminding Ltd | Health & social care | 2022 |
| Shoreditch Chicken & COD Ltd | Hospitality | 2011 |
| Shree Muruga Ltd | Real estate | 2025 |
| Shree RAJ Rajeshwari Worldwide Ltd | Wholesale & retail | 2026 |
| Shubra Services Ltd | Construction | 2019 |
| Shurrab Medicare Ltd | Health & social care | 2014 |
| SIA & SIA Ltd | Professional & scientific | 2023 |
| SIA Gulf Limited | Transport & logistics | 2026 |
| Sia-Luxury Ltd | Wholesale & retail | 2022 |
| Siam Labeling & Advertising Solutions UK Limited | Manufacturing | 2025 |
| Siamese UK Trading Ltd | Hospitality | 2023 |
| Sibling Cigars Ltd | Wholesale & retail | 2021 |
| Siddique Properties Ltd | Construction | 2021 |
| Siddiqui Transport Service Ltd | Transport & logistics | 2024 |
| Siddy Cargo Ltd | Transport & logistics | 2026 |
| Sienna & Phoenix Holdings Ltd | Real estate | 2025 |
| Sigma Soft Limited | Real estate | 2018 |
| Signature Connections Limited | Administrative & support | 2024 |
| Signify Limited | Professional & scientific | 1999 |
| Silora Limited | Wholesale & retail | 2025 |
| Silver ELM Ltd | Financial services | 2020 |
| Silverlinks London Ltd | Information & communication | 2021 |
| Silviland Limited | Administrative & support | 2019 |
| SIM Noor Food Service Ltd | Hospitality | 2021 |
| SIM Property Maintenance Services Ltd | Construction | 2018 |
| Simple & Wright Ltd | Construction | 2014 |
| Simply Consult Limited | Information & communication | 2014 |
| Simply Dormant Limited | Administrative & support | 2016 |
| Simply Extend Ltd | Other services | 2020 |
| Sirosh & Co Ltd | Transport & logistics | 2024 |
| Sister Ventures Ltd | Households | 2025 |
| Sitla Properties Ltd | Real estate | 2020 |
| SIU Engineering Limited | Construction | 2026 |
| Sivagnanam Property Limited | Real estate | 2021 |
| Sivesh Ltd | Real estate | 2012 |
| SIX Kilometers Ltd | Information & communication | 2025 |
| Sixfour Services Ltd | Construction | 2022 |
| SJ Urban Property Solution Ltd | Households | 2025 |
| SJA Building Contractors Limited | Construction | 2007 |
| SJS Building & Roofing Contractors Limited | Construction | 2025 |
| SK Fencing & Landscaping Ltd | Professional & scientific | 2025 |
| SK George Hotel Henfield Ltd | Hospitality | 2022 |
| SK Management Consultancy Ltd | Professional & scientific | 2022 |
| SK Premium Vision Ltd | Health & social care | 2025 |
| SK Sandhu Ltd | Health & social care | 2026 |
| SK UK Medical Services Limited | Health & social care | 2013 |
| SKA Associates Ltd | Professional & scientific | 2010 |
| Skib Marine Services Ltd | Professional & scientific | 2024 |
| Skillzena Limited | Wholesale & retail | 2023 |
| Skinso Ltd | Wholesale & retail | 2026 |
| Skora Accounting Ltd | Professional & scientific | 2015 |
| Skora Construction Ltd | Construction | 2011 |
| SKP Medical Services Limited | Health & social care | 2005 |
| Sky Beacon Properties Ltd | Real estate | 2026 |