| Skhh Limited | Real estate | 2016 |
| Skhh Properties Ltd | Real estate | 2017 |
| SKI Life Science Consulting Ltd | Professional & scientific | 2023 |
| Skiiin London Ltd | Wholesale & retail | 2026 |
| Skill Stack Services Limited | Information & communication | 2026 |
| Skillbond Direct Limited | Wholesale & retail | 1992 |
| Skillbond Limited | Real estate | 1973 |
| Skilled Workforce Solutions Limited | Administrative & support | 2023 |
| Skilltragz Limited | Other services | 2018 |
| Skinnovations Clinic Ltd | Other services | 2020 |
| Skip Squad Ltd | Water & waste | 2016 |
| Skipnow Ltd | Information & communication | 2026 |
| SKJ Consulting Ltd | Wholesale & retail | 2024 |
| SKK Solicitors Limited | Professional & scientific | 2024 |
| SKL Property Maintenance Ltd | Construction | 2024 |
| SKL Transport Ltd | Transport & logistics | 2014 |
| SKM & SJ Limited | Real estate | 2026 |
| SKM Croydon Limited | Construction | 2023 |
| SKM Developers Ltd | Wholesale & retail | 2025 |
| SKM Logistics Ltd | Transport & logistics | 2024 |
| SKM Property Ventures Ltd Ltd | Real estate | 2026 |
| Skmaxo Ltd | Wholesale & retail | 2021 |
| SKN Delivery Services Ltd | Transport & logistics | 2024 |
| SKN Design & Build Ltd | Construction | 2026 |
| Skore Sports Limited | Education | 2023 |
| SKP Fruit and VEG Limited | Wholesale & retail | 2017 |
| SKR Inc Ltd | Professional & scientific | 2026 |
| SKS Global Ltd | Professional & scientific | 2025 |
| SKS Sandhu Construction Ltd | Construction | 2023 |
| SKS Vista Limited | Construction | 2025 |
| SKU Builders Limited | Construction | 2025 |
| SKU Textiles Limited | Manufacturing | 2025 |
| Sky Blue Express Ltd | Transport & logistics | 2019 |
| Sky Ceylon Ltd | Wholesale & retail | 2020 |
| Sky Distributions Ltd | Wholesale & retail | 2017 |
| Sky Express Travel Limited | Administrative & support | 1984 |
| Sky Hairdressers Limited | Other services | 2022 |
| Sky Mobile Traders Ltd | Wholesale & retail | 2024 |
| Sky Potential Limited | Information & communication | 2013 |
| Sky Reign Elite Flight Catering Ltd | Hospitality | 2026 |
| Sky Technology UK Ltd | Information & communication | 2025 |
| Sky World Airways Limited | Transport & logistics | 2024 |
| Skycart International Limited | Wholesale & retail | 2025 |
| Skycraft Roofers Ltd | Construction | 2024 |
| Skyfi Holding Ltd | Manufacturing | 2025 |
| Skylark Legal Ltd | Professional & scientific | 2024 |
| Skylark Timber Limited | Wholesale & retail | 2023 |
| Skyline Commercials Limited | Real estate | 2021 |
| Skyline Pro Builders Limited | Construction | 2024 |
| Skylinecreation Ltd | Construction | 2024 |
| Skylink Properties Limited | Real estate | 1987 |
| Skylion Group Ltd | Wholesale & retail | 2025 |
| Skynet AI Solutions Limited | Information & communication | 2025 |
| Skynet IT Consultancy Limited | Information & communication | 2018 |
| Skynet Ventures Ltd | Financial services | 2018 |
| Skyride Ltd | Transport & logistics | 2025 |
| Skyride Travel Solutions Limited | Transport & logistics | 2026 |
| Skyscopeuk Ltd | Construction | 2026 |
| Skysightsuk Ltd | Construction | 2025 |
| Skyview Serviced Apartments Ltd | Hospitality | 2019 |
| Skyviewthoughts Infotech Private Limited | Information & communication | 2022 |
| Skyway Construction Ltd | Construction | 2021 |
| Skyway Development Limited | Real estate | 2026 |
| Skyways Property Limited | Real estate | 2025 |
| Skywell (UK) Limited | Information & communication | 2012 |
| Skyz Gold Events International Ltd | Administrative & support | 2025 |
| SL Catering Ltd | Hospitality | 2022 |
| SL Customz Ltd | Wholesale & retail | 2023 |
| SL Recruitment Solutions Ltd. | Other services | 2013 |
| SL Renovations Ltd | Construction | 2024 |
| SL Supplements Ltd | Wholesale & retail | 2019 |
| SL Trades Ltd | Wholesale & retail | 2024 |
| Slab Gates Limited | Manufacturing | 2023 |
| Slatecode Ltd | Financial services | 2022 |
| Slbm Capital Ltd | Wholesale & retail | 2025 |
| SLD Clothing Ltd | Wholesale & retail | 2025 |
| Sldeals Ltd | Wholesale & retail | 2026 |
| Sleek Properties Limited | Real estate | 2017 |
| Sleek Smiles Ltd | Health & social care | 2025 |
| Sleik Luxe Ltd | Wholesale & retail | 2025 |
| Slice Pizza Ltd | Hospitality | 2023 |
| SLIEVE7 Productions Limited | Information & communication | 2023 |
| Slik Beauty Ltd | Other services | 2018 |
| Slik Foods Ltd | Hospitality | 2020 |
| SLL Food Ltd | Hospitality | 2024 |
| Slough & Eton DRY Cleaners Ltd | Other services | 2022 |
| Slough 5RIVER Ltd | Hospitality | 2025 |
| Slough Accountants Ltd | Professional & scientific | 2014 |
| Slough and Bucks Tutors Limited | Education | 2023 |
| Slough and District Deaf Centre | Health & social care | 2006 |
| Slough Anti-Litter C.I.C. | Other services | 2022 |
| Slough Asian Baptist Church Ltd | Other services | 2024 |
| Slough Auto Care Centre Ltd | Wholesale & retail | 2026 |
| Slough Auto Centre 1975 Ltd | Wholesale & retail | 2026 |
| Slough Auto Centre Ltd | Wholesale & retail | 2014 |
| Slough Autocare Ltd | Wholesale & retail | 2021 |
| Slough Automatic Motors Limited | Wholesale & retail | 2026 |
| Slough Automotives Ltd | Wholesale & retail | 2025 |
| Slough Blinds and Curtains Limited | Wholesale & retail | 2010 |
| Slough Build & Design Limited | Construction | 2026 |