| SP2 Vision Limited | Real estate | 2025 |
| Spa and Leisure Title Limited | Professional & scientific | 2004 |
| Space Exchange Global C.I.C. | Professional & scientific | 2025 |
| Spacewaves Limited | Other services | 2019 |
| Spanish Property Company Services Limited | Professional & scientific | 2018 |
| Spark Electric Services Ltd | Construction | 2026 |
| Spark Medical Connect Ltd | Health & social care | 2021 |
| Spark Nest Cleaners Limited | Administrative & support | 2025 |
| Sparky P Limited | Administrative & support | 2009 |
| Spata Media Ltd | Information & communication | 2016 |
| SPE Water Treatment Limited | Administrative & support | 2006 |
| Specialist Cutting Services Limited | Administrative & support | 1997 |
| Specialist Services Limited | Manufacturing | 2020 |
| Spectrum Displays Limited | Professional & scientific | 2012 |
| Speenwaf Enterprise Limited | Wholesale & retail | 2024 |
| Spencer & Grey's Limited | Real estate | 2022 |
| SPH Trading Limited | Construction | 2016 |
| Sphere Estates Ltd | Real estate | 2019 |
| Sphere Homes Limited | Real estate | 2009 |
| Spheric Design Ltd | Manufacturing | 2017 |
| Spheric Property Management Limited | Real estate | 2018 |
| Spica Lighting and Power Solutions Ltd | Other services | 2023 |
| Spica Temperature Control Solutions Limited | Administrative & support | 2013 |
| Spice Academy Limited | Wholesale & retail | 2023 |
| Spicy Pineapple Group Ltd | Hospitality | 2025 |
| Spinnaker Residential Limited | Extraterritorial | 2001 |
| Spiral Solutions Recruitment Limited | Administrative & support | 2023 |
| Spirality Limited | Other services | 2000 |
| Spiritus-Cc Limited | Professional & scientific | 2020 |
| Splendour Learning Hub Limited | Education | 2025 |
| Splinta Projekts Limited | Construction | 2014 |
| Spock Ltd | Professional & scientific | 2025 |
| Sports Lion Marketing & Promotion (UK) Ltd | Professional & scientific | 2024 |
| Sportsguide Limited | Arts & recreation | 1979 |
| Springfield Properties PVT Ltd | Real estate | 2022 |
| Springfield Superstore Ltd | Wholesale & retail | 2024 |
| Sprint Series Ltd | Arts & recreation | 2026 |
| Sprite Consultancy Ltd | Professional & scientific | 2024 |
| SPS & Associates Ltd | Professional & scientific | 2017 |
| Spsj Private Limited | Real estate | 2025 |
| SQM Properties Limited | Professional & scientific | 2019 |
| Squash Stix Ltd | Wholesale & retail | 2011 |
| Squawk Games Limited | Information & communication | 2024 |
| Srasha Properties Limited | Real estate | 2025 |
| SRH Builders Limited | Construction | 2016 |
| Srpl Ltd | Hospitality | 2022 |
| SS I Tech Limited | Transport & logistics | 2013 |
| SSA Consulting Engineers Limited | Extraterritorial | 2012 |
| SSL Foodservice Ltd | Wholesale & retail | 2005 |
| Ssolve Limited | Information & communication | 2018 |
| Ssrr Technology Limited | Information & communication | 2023 |
| ST Alban (Tekels Park) Limited | Real estate | 2015 |
| ST Catherine's Court (Bramley) Management Company Limited | Households | 2008 |
| ST Clair Healthcare Limited | Administrative & support | 2021 |
| ST Georges Court Camberley Management Limited | Households | 2011 |
| ST James Close Management Ltd | Households | 2011 |
| ST Martha's Place Management Company Limited | Households | 2020 |
| ST Mellion Operations Limited | Arts & recreation | 2019 |
| ST Mellion Property Limited | Real estate | 2004 |
| ST Mellion Property Management Limited | Real estate | 1995 |
| ST. Ann's Residents Association (Camberley) Limited | Households | 1983 |
| ST. George's Coachworks Limited | Wholesale & retail | 2005 |
| ST. George's Coachworks Properties Limited | Real estate | 2005 |
| ST. George's Wood (Haslemere) Limited | Households | 1981 |
| Staff Konnect Ltd | Administrative & support | 2024 |
| Staffing Direct UK Limited | Administrative & support | 2021 |
| Stahlwille Tools Limited | Wholesale & retail | 1991 |
| Standard Commercial Tobacco Company (UK) Limited | Financial services | 1979 |
| Stanulet Buildworks Ltd | Construction | 2026 |
| Star Vegetables Ltd | Wholesale & retail | 2021 |
| Stardock Limited | Professional & scientific | 2005 |
| Starfyn Limited | Administrative & support | 2020 |
| Stay Calm Keep Happy Ltd | Wholesale & retail | 2024 |
| Staywell Care Services Ltd | Public administration | 2023 |
| Steadfast Automation Ltd | Manufacturing | 2011 |
| Steamx Plus DRY Cleaners Ltd | Other services | 2023 |
| Stedan Ltd | Education | 2019 |
| Steeles Mews South Management Company Limited | Households | 2007 |
| Steery Limited | Health & social care | 2022 |
| Stellar Splash Ltd | Extraterritorial | 2021 |
| Stellarstream Ltd | Information & communication | 2026 |
| Stem Connex Limited | Administrative & support | 2024 |
| Step Ahead Recruitment Limited | Administrative & support | 2011 |
| STEP8UP Ltd | Information & communication | 2017 |
| Stephen Burridge Limited | Wholesale & retail | 2003 |
| Stephen Wolstenholme LLP | | 2004 |
| Steps Plumbing and Heating Limited | Construction | 2026 |
| Sterling Design and Build Ltd | Construction | 2022 |
| Steve Harris Decorating Contractors Ltd. | Construction | 2006 |
| Steve Martin Builders Ltd | Construction | 2013 |
| Stevens' Homes Group Limited | Construction | 2018 |
| Stevens-Hatherley Holdings Limited | Other services | 1972 |
| Stewart & Co Accountants LLP | | 2019 |
| Stewart & Co Company Secretary Limited | Professional & scientific | 2016 |
| Stewart & Stevenson TVS UK Ltd | Extraterritorial | 2002 |
| Stewarts Wealth Limited | Professional & scientific | 2015 |
| Sthomas Legalisation Services Limited | Administrative & support | 2018 |
| Sthomas Notary Public Ltd | Professional & scientific | 2014 |
| Stilk + VIN Limited | Professional & scientific | 2026 |
| Stirling Ackroyd Group Limited | Real estate | 1991 |