| Subhan Limited | Wholesale & retail | 2018 |
| Subtile Stones Limited | Wholesale & retail | 2016 |
| Success Consulting Ltd | Information & communication | 2025 |
| Sudhan Welfare Society CIC | Health & social care | 2021 |
| Sue@Changes Ltd | Wholesale & retail | 2025 |
| Sueno Sights Limited | Real estate | 2024 |
| Suger Limited | Other services | 2018 |
| Suits and Sliders Limited | Information & communication | 2025 |
| Sukhvilas Living Limited | Construction | 2025 |
| Sulivan Green Ltd | Real estate | 2019 |
| Sulleyco Limited | Wholesale & retail | 2023 |
| Sulzer Pumps Wastewater UK Limited | Manufacturing | 1989 |
| Summerfield Plumbing Limited | Construction | 2010 |
| Sun Saver Limited | Wholesale & retail | 2018 |
| Suncar Trans Ltd | Administrative & support | 2025 |
| Suncity Motors Ltd | Wholesale & retail | 2026 |
| Suncity UK Group Ltd | Wholesale & retail | 2024 |
| Sundial Developments (UK) Ltd | Construction | 1985 |
| Suniq Ltd | Wholesale & retail | 2010 |
| Sunmount Management Company Limited | Households | 2003 |
| Sunmount Properties Limited | Real estate | 2001 |
| Sunningdale Group Limited | Financial services | 2022 |
| Sunrise IT Consultant Limited | Information & communication | 2012 |
| Sunshine Property Management Limited | Real estate | 2022 |
| Supatrust Limited | Real estate | 2001 |
| Super Shiny Ltd | Administrative & support | 2026 |
| Supertive Shopfront & Shutters Ltd | Manufacturing | 2022 |
| Supertive Waste Collection Limited | Water & waste | 2026 |
| Suppression Systems Limited | Extraterritorial | 2016 |
| Supra Design Ltd | Professional & scientific | 2021 |
| Supra Interior Ltd | Wholesale & retail | 2021 |
| SUR O Bani CIC | Education | 2025 |
| Sure Vision Limited | Wholesale & retail | 2015 |
| Surenanju Limited | Information & communication | 2019 |
| Suresh Enterprises Ltd | Professional & scientific | 2019 |
| Surf N Turf Digital Ltd | Professional & scientific | 2024 |
| Surgacademy Ltd | Education | 2022 |
| Surrealist Sound Limited | Extraterritorial | 2015 |
| Surrenden Hillview Management Company Limited | Households | 1986 |
| Surrey & Sussex Cars Limited | Wholesale & retail | 2023 |
| Surrey & Sussex Electrical Ltd | Construction | 2026 |
| Surrey Bi-Folding Doors Ltd | Construction | 2018 |
| Surrey Buses 4U Limited | Transport & logistics | 2018 |
| Surrey Ductwork Fabrication Limited | Manufacturing | 2009 |
| Surrey Fire Protection Limited | Construction | 2013 |
| Surrey Gardens Trust | Administrative & support | 1991 |
| Surrey Roofing & Building Limited | Construction | 2024 |
| Surrey Signs Ltd | Manufacturing | 2024 |
| Surrey Sparks & Solar Ltd | Professional & scientific | 2022 |
| Surrey Stairlifts Ltd | Manufacturing | 2017 |
| Surrey Style Home Improvements Limited | Construction | 2017 |
| Surrey Sussex Plumbers Ltd | Construction | 2023 |
| Surrey&Sussex Distribution Ltd | Transport & logistics | 2025 |
| Susie Evans Wedding & Events Co. Ltd | Other services | 2022 |
| Sussane Care Limited | Health & social care | 2017 |
| Sussex & Kent Electrical Ltd | Construction | 2025 |
| Sussex Aesthetics Ltd | Health & social care | 2018 |
| Sussex Air Conditioning Limited | Extraterritorial | 2020 |
| Sussex and Surrey Construction Ltd | Construction | 2017 |
| Sussex Balustrade Solutions Ltd | Construction | 2024 |
| Sussex Carpet & Flooring Centre Limited | Wholesale & retail | 2021 |
| Sussex Carpet Centre Limited | Wholesale & retail | 2012 |
| Sussex Data Solutions Ltd | Information & communication | 2012 |
| Sussex Door Solutions Ltd | Construction | 2021 |
| Sussex Freight Services Ltd | Transport & logistics | 2022 |
| Sussex Gold Buyers Ltd | Wholesale & retail | 2023 |
| Sussex Hospitality Ltd | Hospitality | 2019 |
| Sussex Lgbt CIC | Health & social care | 2020 |
| Sussex Logistics Limited | Transport & logistics | 2025 |
| Sussex Tax Accountants Ltd | Professional & scientific | 2010 |
| Sussex Trading & Investments Ltd | Real estate | 2020 |
| Sussex Tyres Limited | Wholesale & retail | 2018 |
| Sussex Van Hire & Sales Limited | Extraterritorial | 2012 |
| Sussex Waste Solutions Ltd | Water & waste | 2025 |
| Sussex Wine Limited | Wholesale & retail | 2019 |
| Sussex Youth CIC | Education | 2023 |
| Sussex-Shine Ltd | Administrative & support | 2020 |
| Sutton & Cheam Motor Club Limited | Arts & recreation | 1969 |
| SVC Labs Ltd. | Manufacturing | 2014 |
| SVC Retail Ltd | Wholesale & retail | 2017 |
| SVM International Services Limited | Financial services | 2019 |
| SVR Logistics Ltd | Transport & logistics | 2021 |
| SW Exotics Ltd | Wholesale & retail | 2023 |
| SW National Ventilation Limited | Construction | 1999 |
| Swabi Mart Ltd | Wholesale & retail | 2025 |
| Swallow Crest Ltd. | Construction | 2007 |
| Swan Property Management (Crawley) Ltd | Households | 2011 |
| Swanlake Limited | Administrative & support | 2019 |
| Swatkpk Limited | Administrative & support | 2022 |
| Swayambhu Power System Solutions Limited | Professional & scientific | 2014 |
| Sweep IT Clean Limited | Administrative & support | 2025 |
| SWF Private Capital Limited | Financial services | 2025 |
| Swift Home Design Ltd | Construction | 2019 |
| Swift Mobility Cars Ltd | Transport & logistics | 2021 |
| Swift Print Pack Ltd | Manufacturing | 2021 |
| Swift Riders Limited | Transport & logistics | 2017 |
| Swift Transport Solutions Ltd | Transport & logistics | 2023 |
| Swiftly Solutions Ltd | Construction | 2023 |
| Swiftrms Ltd | Information & communication | 2025 |
| Swiftway Group Ltd | Administrative & support | 2026 |