| Secured Home Buy Ltd | Real estate | 2019 |
| Seeking Shiva Productions Ltd | Information & communication | 2013 |
| Sellforte Solutions UK Ltd | Information & communication | 2019 |
| Seob Ltd | Manufacturing | 2023 |
| Seqter Affiliates Co Ltd | Construction | 2019 |
| Services TM UK Ltd | Wholesale & retail | 2024 |
| SET Schulz Elektro Technik Limited | Administrative & support | 2005 |
| Seven Seven Resource Advisors Limited | Mining & quarrying | 2017 |
| Shamsi Holdings Limited | Real estate | 2022 |
| SHANDY83 Limited | Administrative & support | 2016 |
| Shape Talent Ltd | Professional & scientific | 2017 |
| Sharescape Limited | Financial services | 2025 |
| Shawn & Associates Limited | Professional & scientific | 2003 |
| Sherman & Waterman Associates Limited | Real estate | 1974 |
| Sherman & Waterman Associates Properties Limited | Real estate | 1996 |
| Shiftt Ltd | Information & communication | 2025 |
| Shocking Energy Ltd | Information & communication | 2023 |
| Showbiz Luxury Travel Ltd | Transport & logistics | 2021 |
| Shukr Supplements Limited | Wholesale & retail | 2025 |
| Silkprint Productions Ltd | Information & communication | 2025 |
| Silly Onion Ltd | Wholesale & retail | 2023 |
| Silsila Ltd | Wholesale & retail | 2025 |
| Silver Pine Ventures Ltd | Wholesale & retail | 2024 |
| Silvergate Holdings Limited | Real estate | 2021 |
| Simple Holdings Ltd | Manufacturing | 2016 |
| Simplexo Group Limited | Professional & scientific | 2007 |
| Sirat-Al-Islam CIC | Other services | 2025 |
| SIX Pennies Limited | Wholesale & retail | 2018 |
| Skinfrastructure Aesthetics Ltd. | Other services | 2023 |
| Skoll-Hati Ltd | Arts & recreation | 2024 |
| Skylark Logic Limited | Information & communication | 2011 |
| Skyways Consultants Ltd | Other services | 2023 |
| Slifkin TV Ltd | Information & communication | 2014 |
| Slingshot Venture Development Ltd | Professional & scientific | 2002 |
| Slingwise Limited | Real estate | 2025 |
| Smdpkh Accountancy Ltd. | Professional & scientific | 2021 |
| Snafflz Entertainment Ltd | Arts & recreation | 2011 |
| Snuzzze Ltd | Other services | 2020 |
| Sobe Enterprises Ltd | Construction | 2024 |
| Socialsyncai Ltd | Professional & scientific | 2024 |
| Sofitect Ltd | Information & communication | 2023 |
| Solencer Ltd | Professional & scientific | 2021 |
| Source and SIP Ltd | Wholesale & retail | 2025 |
| Sourcing the Way Ltd. | Professional & scientific | 2013 |
| Sovra Holdings Ltd | Information & communication | 2025 |
| Spark Retail and Technology Limited | Information & communication | 2024 |
| Sparkling Clean Services Ltd | Administrative & support | 2025 |
| Sporting Goods Ltd | Wholesale & retail | 2024 |
| Springhill Media Ltd | Information & communication | 2024 |
| Square One Architects Ltd | Professional & scientific | 2015 |
| Square One Real Estate Ltd | Real estate | 2018 |
| Staplehurst Monarchs FC CIC | Arts & recreation | 2024 |
| Star Inspired Jackets Limited | Wholesale & retail | 2025 |
| Stellaris Group Limited | Professional & scientific | 2024 |
| Sterling Financial Management Ltd | Professional & scientific | 2015 |
| Stethos Healthcare Ltd | Health & social care | 2023 |
| Streamsy Ltd | Information & communication | 2025 |
| Strong OFF Ltd | Arts & recreation | 2025 |
| Stupid Technologies Ltd. | Professional & scientific | 2019 |
| SUB-3 Media Ltd | Information & communication | 2025 |
| Success Global Property Investment Limited | Real estate | 2018 |
| Summer Hibiscus Staffing Solutions Limited | Hospitality | 2023 |
| Sundin Media Creations Ltd | Information & communication | 2019 |
| Sunley Estate Holdings Ltd | Real estate | 2025 |
| Sunora Energy Group Ltd | Other services | 2024 |
| Sunrise Design Limited | Professional & scientific | 2012 |
| Sweet Altitude Limited | Manufacturing | 2019 |
| Swishy Ltd | Other services | 2024 |
| Synapse Academy Limited | Education | 2025 |
| Synergise Marketing Ltd | Professional & scientific | 2014 |
| Taai Consultancy Limited | Extraterritorial | 2015 |
| Tales at the Threshold Ltd | Hospitality | 2025 |
| Talwia Ltd | Manufacturing | 2023 |
| Taxbuddi Ltd | Professional & scientific | 2022 |
| Taxing Nannies Ltd | Professional & scientific | 2024 |
| TC Midlands Ltd | Real estate | 2017 |
| Tdka Ltd | Professional & scientific | 2018 |
| Team Coaching Studio Limited | Professional & scientific | 2019 |
| Termpilot Ltd | Information & communication | 2025 |
| TF Networks Ltd. | Information & communication | 2020 |
| TFZ LLP | | 2013 |
| Tgate Property Group Limited | Real estate | 2024 |
| THE Boot Trader Ltd | Wholesale & retail | 2022 |
| THE Bridge Magazine Ltd | Administrative & support | 2011 |
| THE Comment Bureau Limited | Professional & scientific | 2013 |
| THE Copy GUY Limited | Professional & scientific | 2015 |
| THE Creative Penguin Limited | Information & communication | 2016 |
| THE Dhol Players Ltd | Arts & recreation | 2026 |
| THE Fabled Agency Ltd | Manufacturing | 2025 |
| THE Global Management Consultancy Ltd | Professional & scientific | 2013 |
| THE Good Work LAB Limited | Professional & scientific | 2024 |
| THE Grill on the Wheel Ltd | Hospitality | 2020 |
| THE Holistic Health Method Ltd. | Health & social care | 2019 |
| THE Hollies Consultancy Ltd | Professional & scientific | 2015 |
| THE Inner Potential Ltd | Administrative & support | 2017 |
| THE Modern Day Medium Ltd | Education | 2025 |
| THE Mulberries (Newdigate) Management Company Limited | Households | 2002 |
| THE Property Source Group Limited | Financial services | 2022 |
| THE Rack Glasgow Ltd | Education | 2022 |
| THE Scholar Gate (TSG) Ltd | Information & communication | 2021 |