| Superclean Services (Commercial) | | 1996 |
| Superclean Services (Local Authority & Commercial) | | 1996 |
| Superior Cleaners Limited | Administrative & support | 2004 |
| Supermotodaz Limited | Wholesale & retail | 2006 |
| Surbiton Consultancy Co Ltd | Professional & scientific | 1995 |
| Surbiton Mini Cabs Ltd | Transport & logistics | 2016 |
| Surbiton Racket and Fitness Club Limited | Professional & scientific | 1991 |
| Sure Resources Limited | Real estate | 2002 |
| Suredata Limited | Professional & scientific | 1986 |
| Suregrove Limited | Professional & scientific | 1990 |
| Sureplan Developments Limited | Professional & scientific | 1993 |
| Surgetech Limited | Manufacturing | 1990 |
| Surgical Creations Limited | Health & social care | 2013 |
| Surgo UK Limited | Transport & logistics | 2011 |
| Surma Enterprise Ltd | Hospitality | 2016 |
| Surrey Advanced Control Limited | Professional & scientific | 2002 |
| Surrey Air CON Ltd | Manufacturing | 2016 |
| Surrey Coalition of Disabled People | Other services | 1997 |
| Surrey Counselling & Mediation Limited | Health & social care | 1993 |
| Surrey Downs Estates Limited | Real estate | 1990 |
| Surrey Downs Property Investment Limited | Real estate | 1993 |
| Surrey Estates UK Limited | Administrative & support | 2000 |
| Surrey Facebooth Ltd | Professional & scientific | 2014 |
| Surrey Heath Bowling Limited | Arts & recreation | 1988 |
| Surrey Heights Dementia Care Centre Limited | Health & social care | 2018 |
| Surrey Hills Property Investments Ltd | Construction | 2021 |
| Surrey Kitchen and More Limited | Construction | 2020 |
| Surrey Life Coaching Limited | Health & social care | 2004 |
| Surrey Limos Limited | Transport & logistics | 2022 |
| Surrey Masonic Halls Fund Limited | Financial services | 1974 |
| Surrey Mobile Personal Trainers Ltd | Other services | 2024 |
| Surrey Skyline Ltd | Real estate | 2016 |
| Surrey Smart Centre Limited | Wholesale & retail | 2000 |
| Surrey Tennis | Arts & recreation | 2023 |
| Surrey Welfare Rights Unit | Health & social care | 1997 |
| Surveying and Management Services Limited | Professional & scientific | 1999 |
| Sustainable Schools Project Limited | Other services | 2021 |
| Sutham Limited | Real estate | 1979 |
| Sutherland Day Nursery Limited | Education | 2007 |
| Sutton and East Surrey Water PLC | Water & waste | 1989 |
| Sutton and East Surrey Water Services Limited | Water & waste | 1989 |
| Sutton Christian Centre Trust | Other services | 2006 |
| Sutton Mencap Charity Company | Health & social care | 2000 |
| Sutton Mental Health Foundation Charity Company | Health & social care | 1998 |
| Sutton Specsavers Limited | Wholesale & retail | 1994 |
| Sutton Vision | Health & social care | 2002 |
| Sutton Visionplus Limited | Wholesale & retail | 1994 |
| SVJ Ltd | Professional & scientific | 2000 |
| Swales Consulting Limited | Professional & scientific | 2007 |
| Swan Barn Road Limited | Real estate | 2007 |
| Swan Cars & Couriers Ltd | Transport & logistics | 2004 |
| Swan Water Limited | Real estate | 1998 |
| Sweet Supply Ltd | Wholesale & retail | 2021 |
| Sweeting Associates Limited | Real estate | 2006 |
| Sweetings Property Management Limited | Real estate | 2000 |
| Swift Electrical Services Limited | Wholesale & retail | 2001 |
| Swift Management Consultants Limited | Professional & scientific | 2003 |
| Swift Moves Limited | Transport & logistics | 2015 |
| Swift Windows Caterham Limited | Wholesale & retail | 2004 |
| Swizzpets UK Limited | Wholesale & retail | 2021 |
| SWS Assessments Limited | Health & social care | 2025 |
| Sylvan Hill Ltd | Construction | 2006 |
| Sylvan Property Limited | Real estate | 2007 |
| Symprove Ltd | Professional & scientific | 2005 |
| Synaps Limited | Extraterritorial | 2005 |
| Synchronicity Marketing Limited | Agriculture & fishing | 2002 |
| Synchronise Limited | Real estate | 2001 |
| Synectic Enterprise Ltd | Professional & scientific | 2000 |
| Synergy (Europe) Limited | Professional & scientific | 1992 |
| Synergy Construction and Property Consultants LLP | | 2006 |
| Synergy Private Ltd | Health & social care | 2014 |
| Synergy School of Marketing Limited | Education | 2006 |
| Synopsys Consulting Limited | Information & communication | 1999 |
| System Dependability Limited | Professional & scientific | 2008 |
| System Store Solutions Limited | Wholesale & retail | 1998 |
| Systematic Systems Ltd | Information & communication | 1995 |
| Systemcore Limited | Information & communication | 1995 |
| Systemfast Techniques Limited | Information & communication | 1997 |
| T a a International Limited | Construction | 2007 |
| T B Consultants Limited | Administrative & support | 2007 |
| T Cocklin Ltd | Information & communication | 2007 |
| T Garland Building Services Ltd | Construction | 2006 |
| T H Dolman Limited | Wholesale & retail | 2002 |
| T Lyons Brickwork Ltd | Construction | 2018 |
| T-Bird Computers Limited | Wholesale & retail | 2002 |
| T-Infra UMH Ltd | Financial services | 2024 |
| T. & R. Test Equipment Limited | Manufacturing | 1981 |
| T. Northeast Limited | Wholesale & retail | 1959 |
| T. Property Associates Limited | Real estate | 2007 |
| T.A. Boxall (Engineering) Limited | Wholesale & retail | 1960 |
| T.A. Harris Limited | Extraterritorial | 2005 |
| T.A. Ranson & Sons (Farmers) Limited | Agriculture & fishing | 1969 |
| T.Andrews & Co.(Farncombe)Limited | Wholesale & retail | 1972 |
| T.C.T.C. Services Ltd | Wholesale & retail | 2003 |
| T.J. Inventory Services Guildford Limited | Professional & scientific | 2007 |
| T.J. Motors Limited | Wholesale & retail | 2005 |
| T.O.K. Construction Limited | Administrative & support | 1988 |
| T.T.L. Video Limited | Information & communication | 1987 |
| T3 Enterprises Limited | Professional & scientific | 2005 |
| Tadworth Legal Consultancy Ltd | Professional & scientific | 2018 |