| Starnes (Folkestone) Limited | Real estate | 2000 |
| Starnes (Headcorn) Limited | Real estate | 1993 |
| Starnes (Maidstone) Ltd | Real estate | 2004 |
| Starnes (Robertsbridge) Limited | Real estate | 2005 |
| Starnes Developments Limited | Real estate | 2000 |
| Starnes Estates Limited | Real estate | 2000 |
| Starnes Management Ltd. | Real estate | 2003 |
| Starnes PLC | Construction | 1999 |
| Start UP Counsel Ltd | Professional & scientific | 2025 |
| Statflows Group Limited | Information & communication | 2019 |
| Station Cabs Tunbridge Wells Limited | Transport & logistics | 2024 |
| Stcloud Technology Services Limited | Information & communication | 2013 |
| Steakdoner Ltd | Hospitality | 2024 |
| Stedman Properties Ltd | Real estate | 2011 |
| Steel Real Estate Limited | Real estate | 2025 |
| Steermotive Limited | Wholesale & retail | 2024 |
| Stelle D' Italia Ltd | Hospitality | 2022 |
| Stellium Services Ltd | Administrative & support | 2016 |
| Stelow Limited | Professional & scientific | 2005 |
| Step Communications Holdings Limited | Information & communication | 2024 |
| Step Communications Limited | Information & communication | 1999 |
| Step CONNECT2 Limited | Administrative & support | 2015 |
| Step Exhibitions Limited | Administrative & support | 2006 |
| Stepex Limited | Administrative & support | 2007 |
| Stephen Dewar Consultancy Limited | Professional & scientific | 2014 |
| Stephen Dewar Limited | Professional & scientific | 2014 |
| Stephen Elsden Consulting Ltd | Professional & scientific | 2023 |
| Stephen Hebditch Consultancy Ltd | Professional & scientific | 2022 |
| Stephen James Residential Ltd | Real estate | 2025 |
| Stephen Langer Associates Ltd | Professional & scientific | 2002 |
| Stephen Lunt Limited | Construction | 2001 |
| Stephen Mccarthy Woodland Consultancy & Management LLP | | 2018 |
| Stephens Maguire Holdings Limited | Financial services | 2012 |
| Stephens, Maguire & Company Limited | Professional & scientific | 1987 |
| Stephenson Events & Media Limited | Professional & scientific | 2026 |
| Steptrack Limited | Real estate | 1990 |
| Stereo Interiors Limited | Wholesale & retail | 2009 |
| Steve Errey Limited | Information & communication | 2009 |
| Steve Jarrett Limited | Arts & recreation | 2003 |
| Steven Postlethwaite Limited | Information & communication | 2015 |
| Stil Suncare Ltd | Wholesale & retail | 2024 |
| Still Light Photography Limited | Professional & scientific | 2018 |
| Still Water Aquatics Limited | Agriculture & fishing | 2026 |
| Stillage Limited | Manufacturing | 2026 |
| Stockhurst Limited | Financial services | 2025 |
| Stocklands Place (Tonbridge) Management Limited | Households | 2005 |
| Stone Fable Ltd | Information & communication | 2024 |
| Stone House Bolney LLP | | 2015 |
| Stone Property Collective Limited | Real estate | 2026 |
| Stone Recruitment Group Limited | Administrative & support | 2019 |
| Stone Water Engineering Limited | Construction | 2016 |
| Stonebeck Ltd | Information & communication | 2025 |
| Stonebridge Technologies Limited | Information & communication | 2026 |
| Stonegate Property Management Ltd | Real estate | 2026 |
| Stonegate Property Partners Ltd | Real estate | 2026 |
| Stonelands Real Estate Ltd | Real estate | 2023 |
| Stoner Holdings Ltd | Real estate | 2019 |
| Stoner Motor Company Tunbridge Wells Limited | Wholesale & retail | 2024 |
| Stonestreet Interiors Limited | Construction | 2014 |
| Stonetools Limited | Wholesale & retail | 2007 |
| Stonewall Park Properties Limited | Real estate | 2009 |
| Stoneygate 2007 Ltd | Professional & scientific | 2007 |
| Stop & Save (Tunbridge Wells) Limited | Wholesale & retail | 2003 |
| Stoprr Ltd | Information & communication | 2022 |
| Stories in Bloom Ltd | Other services | 2020 |
| Storm Cars Valeting Ltd | Other services | 2015 |
| Storm Sail BJJ Ltd | Arts & recreation | 2026 |
| Storm Sail Studio Ltd | Information & communication | 2025 |
| Stormont London Limited | Arts & recreation | 2013 |
| Storms Scaffolding UK Ltd | Construction | 2021 |
| Stornoway Lime & Restoration Limited | Construction | 2014 |
| Story Box Alibi Limited | Wholesale & retail | 2023 |
| Straightforward Economics Ltd | Professional & scientific | 2025 |
| Straightforward Software Ltd | Information & communication | 2010 |
| Stranger Films Limited | Administrative & support | 2007 |
| Strata Consulting Limited | Professional & scientific | 2024 |
| Strategic Regulatory Management Limited | Professional & scientific | 2010 |
| Strategic Sourcing Solved Ltd | Professional & scientific | 2011 |
| Strategy and Soundingboard Limited | Professional & scientific | 2000 |
| Strategy to Action Partnership Limited | Professional & scientific | 2005 |
| Strawberry Hill Construction Ltd | Construction | 2016 |
| Strawberry Intelligence Ltd | Information & communication | 2026 |
| Strawberry TW Ltd | Real estate | 2020 |
| Stream Search Limited | Administrative & support | 2007 |
| Streamline Financial Planning Ltd | Financial services | 2022 |
| Strongarm Beekeeping Ltd | Manufacturing | 2023 |
| Strongfit Technologies Limited | Information & communication | 2022 |
| Stronggamers Ltd | Wholesale & retail | 2020 |
| Structuralconsultant Ltd | Professional & scientific | 2019 |
| Structured Capital Solutions Limited | Financial services | 2015 |
| Structured Finance Solutions Ltd | Financial services | 2018 |
| Stuart Guthrie-Brown Consultancy Limited | Professional & scientific | 2011 |
| Stubby Storage Limited | Real estate | 2015 |
| Studio 53 Degrees Ltd | Information & communication | 2025 |
| Studio Bloom Ltd | Professional & scientific | 2017 |
| Studio Courage Ltd | Information & communication | 2025 |
| Studio Education Ltd. | Education | 2015 |
| Studio Hodges Ltd | Information & communication | 2024 |
| Studio Hudson Ltd | Professional & scientific | 2016 |
| Studio LEO Limited | Real estate | 2018 |