| SV Tiling Ltd | Construction | 2021 |
| SV11 Limited | Professional & scientific | 2020 |
| Svac Ltd | Professional & scientific | 2015 |
| Svante Systems Limited | Information & communication | 2016 |
| Svastha Limited | Information & communication | 2016 |
| Svasthya Ltd | Real estate | 2018 |
| SVB Dent Ltd | Health & social care | 2023 |
| SVB Healthcare Limited | Wholesale & retail | 2021 |
| SVD Property Ltd | Real estate | 2024 |
| Sveamed Services Ltd | Health & social care | 2026 |
| Svedha Limited | Information & communication | 2014 |
| SVF Coaching Ltd | Education | 2021 |
| SVF Recruitment Ltd | Construction | 2024 |
| SVJ Trading Limited | Real estate | 2022 |
| SVM Global Investment Ltd | Real estate | 2009 |
| Svmp Ltd | Wholesale & retail | 2017 |
| SVN Capital Limited | Real estate | 2021 |
| SVN Real Estate Consulting Limited | Professional & scientific | 2023 |
| SVO Property Ltd | Real estate | 2026 |
| SVP Consultancy Limited | Information & communication | 2010 |
| SVP Investments Ltd | Real estate | 2020 |
| Svptech Ltd | Information & communication | 2021 |
| SVR Estates Limited | Real estate | 2017 |
| SVV Smart Construction Limited | Construction | 2016 |
| SVY Holdings Ltd | Financial services | 2025 |
| SW Beauty Clinic Limited | Other services | 2024 |
| SW Homecare Agency Ltd | Health & social care | 2012 |
| SW Tailoring London Limited | Wholesale & retail | 2017 |
| SW11 Investments LLP | | 2026 |
| SW16 Motors Ltd | Wholesale & retail | 2021 |
| SW17 Café Ltd | Hospitality | 2018 |
| SWA Gems & Jewels Ltd | Manufacturing | 2024 |
| Swaad Ltd | Hospitality | 2024 |
| Swaaru Ltd | Information & communication | 2022 |
| Swabi Foods Limited | Wholesale & retail | 2026 |
| Swadin Legal Consultancy Ltd | Professional & scientific | 2025 |
| Swagat Cuisine Ltd | Hospitality | 2025 |
| Swaid Consultants Limited | Professional & scientific | 2019 |
| Swakaa Electrical Services Ltd | Construction | 2021 |
| Swallow Swallow Ltd | Hospitality | 2023 |
| Swallows Limited | Information & communication | 2002 |
| Swals Global UK Limited | Wholesale & retail | 2023 |
| Swalyn Limited | Hospitality | 2024 |
| Swami Hari Ltd | Wholesale & retail | 2025 |
| Swaminarayan Gurukul Rajkot | Other services | 2013 |
| Swan Contractors Ltd | Construction | 2001 |
| Swan Enterprises Limited | Real estate | 1983 |
| Swan in Foods Ltd | Wholesale & retail | 2023 |
| Swan in London Ltd | Wholesale & retail | 2025 |
| Swan Inn PUB Ltd | Hospitality | 2025 |
| Swan Property Developers Limited | Construction | 2017 |
| Swan Reach Management Company Limited | Real estate | 1987 |
| Swan Road (West Drayton) Management Limited | Households | 2016 |
| Swanley Bar Lane Holdings Limited | Real estate | 2023 |
| Swanley Property Limited | Real estate | 2017 |
| Swans Logistic Limited | Wholesale & retail | 2021 |
| Swarnim Kesha Limited | Wholesale & retail | 2025 |
| Swarp Services Ltd | Real estate | 2019 |
| Swastech Limited | Information & communication | 2022 |
| Swastek Technologies Limited | Information & communication | 2009 |
| Swastha Limited | Health & social care | 2023 |
| Swastik International (UK) Limited | Wholesale & retail | 2011 |
| Swastik Retail Limited | Wholesale & retail | 2026 |
| Swathik International and Domestic Ltd | Wholesale & retail | 2024 |
| Swayam Global Limited | Wholesale & retail | 2011 |
| SWB Power Ltd | Financial services | 2017 |
| SWB Skelmersdale Ltd | Energy | 2016 |
| SWB ST Helens Ltd | Energy | 2018 |
| Sweat Seal Ltd | Wholesale & retail | 2025 |
| Sweet Icream Ltd | Wholesale & retail | 2025 |
| Sweet Indulgent Trio Limited | Wholesale & retail | 2018 |
| Sweet Shop Holdings Limited | Wholesale & retail | 2026 |
| Sweetbite Gifts Limited | Wholesale & retail | 2025 |
| Sweetbury's Local Ltd | Wholesale & retail | 2011 |
| Sweetcakes Limited Partnership | | 2011 |
| Sweetest Delights Ltd | Wholesale & retail | 2019 |
| Sweetland Limited | Manufacturing | 1997 |
| Sweets by PRI Ltd | Wholesale & retail | 2021 |
| Swegway Limited | Wholesale & retail | 2015 |
| Swellsun Holding Ltd | Financial services | 2017 |
| Swift Auto Garage & MOT Centre Ltd | Wholesale & retail | 2020 |
| Swift Dynamics Ltd | Information & communication | 2016 |
| Swift Sell Properties Limited | Financial services | 2025 |
| Swift Travels Ltd | Administrative & support | 2024 |
| Swiftbooks Incorporated Limited | Professional & scientific | 2015 |
| Swifton Corp Limited | Wholesale & retail | 2022 |
| Swifton Ltd | Wholesale & retail | 2024 |
| Swiftpick Supplies Ltd | Wholesale & retail | 2025 |
| Swimathon Foundation | Arts & recreation | 2003 |
| Swinging Sixties Limited | Wholesale & retail | 2021 |
| Swingpulse Ltd | Wholesale & retail | 2025 |
| Swipe Services Limited | Administrative & support | 2025 |
| Switch Consultants Limited | Administrative & support | 2025 |
| Switzerland Rights Limited | Information & communication | 2023 |
| Switzerland the Film Limited | Information & communication | 2023 |
| Swizard Ltd | Information & communication | 2026 |
| Sword Electrical Limited | Construction | 2022 |
| SWP Driveways Ltd | Administrative & support | 2025 |
| SWP Landscaping Limited | Administrative & support | 2024 |
| SWS Aesthetics Ltd | Health & social care | 2025 |