| Sky Hand Technologies Ltd | Transport & logistics | 2025 |
| Sky LED Ltd | Professional & scientific | 2023 |
| Sky Leisure Limited | Professional & scientific | 1994 |
| Sky Roofing NW Ltd | Construction | 2022 |
| Sky Scaffold (NW) Limited | Administrative & support | 2011 |
| Skybolt Productions Limited | Wholesale & retail | 2015 |
| Skycheck Inspection and Events Ltd | Administrative & support | 2024 |
| Skye Caviar Ltd | Manufacturing | 2025 |
| Skye Construction Limited | Construction | 2026 |
| Skye Industrial Limited | Hospitality | 2024 |
| Skyear Limited | Real estate | 2021 |
| Skyhook Games Studio Ltd | Information & communication | 2007 |
| Skyhook Interactive Limited | Information & communication | 2023 |
| Skylah Publishing UK Ltd | Information & communication | 2025 |
| Skyland Equipment Limited | Wholesale & retail | 2011 |
| Skyland Property Ltd | Real estate | 2020 |
| Skylark Gardens Chester Management Company Limited | Real estate | 2025 |
| Skylava Solutions Ltd | Construction | 2015 |
| Skylet Group Ltd | Real estate | 2022 |
| Skyline Arboricultural Services Limited | Administrative & support | 2014 |
| Skyline Construction (NW) Ltd | Real estate | 2015 |
| Skyline Design London Ltd | Construction | 2017 |
| Skyline Design Services Ltd | Construction | 2021 |
| Skyline Developments Ltd | Construction | 2013 |
| Skyline NDT and High Access Ltd | Professional & scientific | 2013 |
| Skyline Orbit Ltd | Wholesale & retail | 2025 |
| Skyline PM Limited | Extraterritorial | 2014 |
| Skyline Pro Commerce Ltd | Wholesale & retail | 2026 |
| Skyline Property Solutions Limited | Construction | 2005 |
| Skyline Real Estate Development Ltd | Financial services | 2025 |
| Skyline Scaffolding (NW) Ltd | Professional & scientific | 2009 |
| Skyline Shows Limited | Administrative & support | 2024 |
| Skyline Support Limited | Administrative & support | 2017 |
| Skylink IT Services Ltd | Information & communication | 2022 |
| Skylot Ltd | Administrative & support | 2025 |
| Skymobile Limited | Real estate | 2011 |
| Skymomi Solutions Limited | Information & communication | 2026 |
| Skyn Aesthetics Academy Ltd | Other services | 2024 |
| Skyn Group Ltd | Other services | 2026 |
| Skyn Training Centre Ltd | Education | 2025 |
| Skynetcom Ltd | Transport & logistics | 2018 |
| Skypark (Liverpool) Limited | Other services | 2008 |
| Skypark Freight Limited | Real estate | 1994 |
| Skypark Limited | Other services | 2004 |
| Skypark Manchester Ltd | Other services | 2022 |
| Skypark Properties Limited | Real estate | 2014 |
| Skysight Inspection Limited | Professional & scientific | 2026 |
| Skytech Consultants Ltd | Professional & scientific | 2023 |
| Skyward Assets Ltd | Real estate | 2024 |
| Skyward Property Investments Ltd | Real estate | 2024 |
| Skyward Shelters Ltd | Construction | 2026 |
| Skywriters Ltd | Education | 2021 |
| SL & C Holdings Ltd | Financial services | 2025 |
| SL & C Ventures Ltd | Information & communication | 2025 |
| SL Access Limited | Administrative & support | 2020 |
| SL Digital Ltd | Professional & scientific | 2024 |
| SL Materials Limited | Wholesale & retail | 2023 |
| SL Offshore Limited | Construction | 2025 |
| SL Ventures NW Ltd | Arts & recreation | 2026 |
| SL Wealth Services Ltd | Professional & scientific | 2025 |
| Sl&D Housing Ltd | Real estate | 2019 |
| SL5 Properties Limited | Real estate | 2022 |
| SL55 Ltd | Hospitality | 2026 |
| SL86 Holdings Ltd | Professional & scientific | 2018 |
| SLA Electrical Services Ltd | Construction | 2020 |
| SLA Food & Wine Limited | Wholesale & retail | 2019 |
| SLA Pizza Ltd | Hospitality | 2017 |
| Slaats Fine Art Limited | Wholesale & retail | 2024 |
| Slaco Trade Ltd | Wholesale & retail | 2024 |
| Slanae Ltd | Other services | 2025 |
| Slany Design Ltd | Professional & scientific | 2017 |
| Slaps Smoke Ltd | Wholesale & retail | 2025 |
| Slater Lease Co Limited | Administrative & support | 2022 |
| Slater Street Assets Limited | Real estate | 2017 |
| Slater Street Pizza Takeaway Limited | Hospitality | 2025 |
| Slaterland Trading Limited | Professional & scientific | 2018 |
| Slaters Bar Liverpool Ltd | Hospitality | 2021 |
| Slaughter Comedy Ltd | Arts & recreation | 2025 |
| Slaughterhouse Liverpool Ltd | Hospitality | 2014 |
| Slavoil BIS Ltd | Transport & logistics | 2022 |
| Slay My Print Ltd | Wholesale & retail | 2017 |
| Slayden Enterprises Ltd | Real estate | 2021 |
| SLB Property Management Ltd | Real estate | 2021 |
| SLC Property Developments & Consultancy Ltd | Real estate | 2011 |
| SLD Industrial Roof Sheeting and Cladding Ltd | Professional & scientific | 2025 |
| Sldmformatt Limited | Manufacturing | 2026 |
| Sleep Easy Stays Limited | Hospitality | 2024 |
| Sleep in Style Beds Ltd | Manufacturing | 2013 |
| Sleep Trade Ltd | Wholesale & retail | 2014 |
| Sleepy Headzzz Beds Ltd | Wholesale & retail | 2016 |
| Sleepy Smiles Ltd | Other services | 2012 |
| Sleepyswan Studios Ltd | Information & communication | 2024 |
| Sleepzzz (Liverpool) Limited | Other services | 2017 |
| Sleepzzz (Liverpool) Management Limited | Extraterritorial | 2020 |
| Sleepzzz (Manchester) Limited | Other services | 2017 |
| Sleepzzz Operations Limited | Other services | 2023 |
| Sleev Ltd | Manufacturing | 2026 |
| SLEW4U Limited | Construction | 2014 |
| SLG DB 3 Limited | Construction | 2018 |
| SLG Driveways Ltd | Construction | 2022 |