| Sunny Day Properties Limited | Real estate | 2022 |
| Sunrayburgers Limited | Hospitality | 2026 |
| Sunrise Team Ltd | Wholesale & retail | 2016 |
| Sunset 303 Limited | Information & communication | 2024 |
| Sunshine & Showers Nursery School Limited | Education | 2002 |
| Sunshine Mortgages Ltd | Financial services | 2023 |
| Sunup Solar Thermal Heating Ltd | Construction | 2016 |
| Super Natural Thing Limited | Wholesale & retail | 2020 |
| Superclean Pro Services Limited | Administrative & support | 2013 |
| Superhappy Ltd | Administrative & support | 2015 |
| Supertan Studio Limited | Other services | 2001 |
| Supertan Tanning Lotions Limited | Wholesale & retail | 2025 |
| Supplair UK Limited | Hospitality | 2001 |
| Supplement Factory Ltd | Manufacturing | 2011 |
| Support Edge Solutions Ltd | Wholesale & retail | 2025 |
| Supreme Medic Limited | Health & social care | 2024 |
| Supreme Splicing Services Limited | Information & communication | 2021 |
| Supreno Cars & Vans Limited | Wholesale & retail | 2024 |
| Supreno Cars Limited | Wholesale & retail | 2017 |
| Sureflow (Kent) Limited | Construction | 2015 |
| Surelink Group Limited | Construction | 2025 |
| Sureway Limited | Real estate | 2001 |
| Surgical Neurology Limited | Health & social care | 2025 |
| Surperklinservices Limited | Administrative & support | 2020 |
| Surplus Optics Ltd | Wholesale & retail | 2022 |
| Surrey Couriers Ltd | Transport & logistics | 2013 |
| Surrey Dog Training and Behaviour Limited | Professional & scientific | 2026 |
| Surrey Energy Solutions Limited | Construction | 2016 |
| Surrey Grill Food Ltd | Hospitality | 2019 |
| Surrey Heating Service Plan Limited | Administrative & support | 2017 |
| Surrey Heating Specialists Limited | Construction | 2015 |
| Surrey Home Installations Limited | Construction | 2017 |
| Surrey Property Management One Ltd | Real estate | 2023 |
| Surrey Recruitment Services Ltd | Construction | 2022 |
| Surrey Renewables Ltd | Construction | 2021 |
| Surrey Steps (Starting Together: Early Parenting Support) CIC | Health & social care | 2026 |
| Surveillance Solution Ltd | Professional & scientific | 2024 |
| Surveymate Ltd | Information & communication | 2026 |
| Susegad Properties Ltd | Hospitality | 2025 |
| Susenby Homes Ltd | Construction | 2024 |
| Sushi Canterbury Ltd | Hospitality | 2025 |
| Suspire Properties Ltd | Real estate | 2025 |
| Sussex Recruitment Limited | Professional & scientific | 1997 |
| Sustainable Landscape Foundation | Professional & scientific | 2020 |
| Susy Diaz Fitness Ltd | Other services | 2017 |
| Sutica Ltd | Construction | 2019 |
| Suzi Staden Pilates Limited | Other services | 2023 |
| SV Engineering Minds Ltd | Professional & scientific | 2023 |
| SV Estates Limited | Real estate | 2017 |
| SV Finance Services Limited | Professional & scientific | 2005 |
| SV Global Capital Ltd | Professional & scientific | 2011 |
| SV Global Procurement Ltd | Wholesale & retail | 2017 |
| SVFNO1 Ltd | Wholesale & retail | 2024 |
| Svik Housing Limited | Real estate | 2020 |
| Svik Solutions Limited | Information & communication | 2017 |
| SVM Contracts Ltd | Manufacturing | 2021 |
| SW Company Secretarial Services Limited | Construction | 2012 |
| SW Landscapes and Gardening Limited | Administrative & support | 2022 |
| Swadhgroup Limited | Financial services | 2020 |
| Swale Electrical Services Ltd | Construction | 2024 |
| Swale Plumbing & Heating Limited | Construction | 2020 |
| Swallow Mill Farm Limited | Agriculture & fishing | 2012 |
| Swan Care Services Ltd | Health & social care | 2026 |
| Swandef Ltd | Health & social care | 2019 |
| Swandrift Residents Company Limited | Households | 1987 |
| Swansborough Consultants Ltd | Wholesale & retail | 2018 |
| Swansdown Commercials Ltd. | Administrative & support | 2015 |
| Swap Motors Ltd | Wholesale & retail | 2022 |
| Swara Limited | Health & social care | 2014 |
| Swarm OPS Ltd | Agriculture & fishing | 2023 |
| Swarmtech Drones Ltd | Information & communication | 2018 |
| Swave Tech Limited | Information & communication | 2015 |
| Swayne Holdings Ltd | Financial services | 2025 |
| Sweet and Kind Ltd | Hospitality | 2018 |
| Sweet Merchandising Services Limited | Manufacturing | 2021 |
| Sweetsips Limited | Manufacturing | 2023 |
| SWF Medical Services Ltd | Health & social care | 2021 |
| Swift Accountancy Limited | Professional & scientific | 2020 |
| Swift and Hogarth Freehold Limited | Real estate | 2025 |
| Swift Building & DRY Lining Ltd | Construction | 2018 |
| Swift Consulting and Management Services Ltd | Real estate | 2023 |
| Swift Home Improvements South East Limited | Construction | 2025 |
| Swift Installations Ltd | Construction | 2025 |
| Swift Payment Limited | Professional & scientific | 2017 |
| Swift Response Legal Ltd | Professional & scientific | 2026 |
| Swiftacle Courier Ltd | Transport & logistics | 2026 |
| Swiftfba Ltd | Wholesale & retail | 2024 |
| Swiftoak Limited | Manufacturing | 2017 |
| Swiftoak Properties Limited | Real estate | 2025 |
| Swiftplan Limited | Professional & scientific | 2011 |
| Switha Systems Limited | Information & communication | 2022 |
| Swjc Rail Ltd | Administrative & support | 2023 |
| SWM Homes Limited | Construction | 2017 |
| SWM Roofing Limited | Construction | 2011 |
| Swordpath Limited | Wholesale & retail | 2023 |
| Sybertek Ltd | Information & communication | 2023 |
| Symbiosis Suits Ltd | Manufacturing | 2017 |
| Symmetry Performance Limited | Arts & recreation | 2017 |
| Symmetry Physiotherapy Limited | Extraterritorial | 2015 |
| Synapse & Stride Ltd | Health & social care | 2025 |