| Skycube Ltd | Transport & logistics | 2023 |
| Skydive Parts Ltd | Manufacturing | 2025 |
| Skye Blue Properties Ltd | Households | 2022 |
| Skye Kloud Communications Limited | Information & communication | 2025 |
| Skye Kloud Group Ltd | Information & communication | 2025 |
| Skye Services Keyworth Ltd | Health & social care | 2021 |
| Skyhart Business Services Limited | Professional & scientific | 2012 |
| Skyla's Choice Ltd | Wholesale & retail | 2024 |
| Skylark Accountancy Services Ltd | Professional & scientific | 2009 |
| Skylark Secretaries Limited | Professional & scientific | 2003 |
| Skylarking Holdings Limited | Financial services | 2026 |
| Skyler Nottingham Ltd | Hospitality | 2026 |
| Skylift Cars Ltd | Transport & logistics | 2023 |
| Skylight Media Limited | Information & communication | 2004 |
| Skylimit Properties Ltd | Construction | 2022 |
| Skyline Builders G Ltd | Construction | 2018 |
| Skyline CG Limited | Professional & scientific | 2005 |
| Skyline Haul & Homes Limited | Transport & logistics | 2025 |
| Skyline Housing Ltd | Real estate | 2023 |
| Skyline Kitchens Ltd | Wholesale & retail | 2023 |
| Skyline Loft Specialists Ltd | Construction | 2021 |
| Skyline Properties Nottingham Ltd | Real estate | 2025 |
| Skyline Property (East) Limited | Real estate | 2016 |
| Skyline Property (UK) Ltd | Real estate | 2012 |
| Skyline Venice Ltd | Information & communication | 2023 |
| Skynopa Ltd | Extraterritorial | 2025 |
| Skythink Engineering Ltd | Professional & scientific | 2024 |
| Skytrex (2013) Limited | Manufacturing | 2013 |
| Skyvera Travels UK Ltd | Administrative & support | 2026 |
| Skyview Acres Ltd | Agriculture & fishing | 2024 |
| Skyview Escapes Ltd | Real estate | 2023 |
| Skyview Pharma Ltd | Professional & scientific | 2019 |
| Skyview Unity Ltd | Financial services | 2021 |
| Skyview Windows & Doors Limited | Construction | 2013 |
| SL Asset Management Limited | Professional & scientific | 2011 |
| SL Family Law Solutions Ltd | Professional & scientific | 2019 |
| SL Flooring Limited | Construction | 2013 |
| SL Labour Solutions Ltd | Administrative & support | 2017 |
| Slack & Co Floorcoverings Limited | Construction | 1999 |
| Slack & Rose Painting and Interiors Ltd | Construction | 2012 |
| Sladen Technical Services Ltd | Information & communication | 2014 |
| Slak Investment Ltd | Financial services | 2021 |
| Slam Investments Limited | Real estate | 2020 |
| Slasa Limited | Education | 2016 |
| Slashmental Ltd | Wholesale & retail | 2026 |
| Slate & White Services Ltd | Health & social care | 2026 |
| Slate Foundry Ltd | Information & communication | 2026 |
| Slatepack Limited | Arts & recreation | 1988 |
| Slater and Brandley Properties Limited | Real estate | 2007 |
| Slater Electrical Services Limited | Construction | 1989 |
| Slavbuild Limited | Construction | 2011 |
| Slawek Trans Ltd | Wholesale & retail | 2014 |
| Slaycycle Ltd | Wholesale & retail | 2025 |
| SLB Direct Limited | Wholesale & retail | 2022 |
| SLB Training Ltd | Professional & scientific | 2017 |
| Slbl Limited | Construction | 2021 |
| SLC Group Services Limited | Construction | 2021 |
| Sldpk Ltd | Wholesale & retail | 2025 |
| Sleaford Town Football Club Limited | Arts & recreation | 2021 |
| Sleapar Limited | Real estate | 2014 |
| Sleaths of Leicester Limited | Transport & logistics | 2006 |
| Sled Solutions Ltd | Professional & scientific | 2024 |
| Sleddale Limited | Financial services | 2021 |
| Sleek Cleaning Ltd | Administrative & support | 2026 |
| Sleek Community Wellness CIC | Health & social care | 2021 |
| Sleek Developments Ltd | Financial services | 2019 |
| Sleek Investments Ltd | Real estate | 2026 |
| Sleekmade Property Co. Limited | Real estate | 1985 |
| Sleepy Shark Ltd | Wholesale & retail | 2023 |
| Slemm Ltd | Information & communication | 2026 |
| SLG Building Services Ltd | Construction | 2003 |
| Slice IT Sweet Limited | Manufacturing | 2024 |
| Sliceology Limited | Hospitality | 2019 |
| Slick Trimz Limited | Other services | 2023 |
| Sliding Tackle Limited | Administrative & support | 2024 |
| Slimebyte Limited | Information & communication | 2024 |
| Slimmer Group Management Limited | Financial services | 2019 |
| Slimtes Global Dynamic Limited | Administrative & support | 2024 |
| Slingsbys Lincoln Limited | Administrative & support | 1978 |
| Sliverleaf Stay Ltd | Hospitality | 2026 |
| Sljb Electrical Ltd | Construction | 2019 |
| SLK Barbering Ltd | Other services | 2020 |
| SLK Food Production Ltd | Manufacturing | 2026 |
| SLK Solutions Limited | Administrative & support | 2016 |
| SLM Coproperty Ltd | Real estate | 2025 |
| SLM Services Notts Ltd | Information & communication | 2018 |
| SLN Properties Ltd | Real estate | 2015 |
| Sloan Management Ltd | Information & communication | 2018 |
| Sloane & Stirling Estates Limited | Real estate | 2024 |
| Slow Train Coming Limited | Information & communication | 2021 |
| Slowfree Residents Association Limited | Households | 1985 |
| SLS Engineering Solutions Ltd | Administrative & support | 2012 |
| SLS Life Coaching Ltd | Health & social care | 2025 |
| SLS Trading Ltd | Wholesale & retail | 2022 |
| Slumberworks UK Limited | Wholesale & retail | 2022 |
| SLV Gastro Private Limited | Health & social care | 2022 |
| SM & AM Holdings Ltd | Financial services | 2025 |
| SM Batty Nottingham Limited | Professional & scientific | 2011 |
| SM Carz Ltd | Administrative & support | 2026 |
| SM Clear Vision Ltd | Health & social care | 2025 |