| Seascape Management (Sandgate) Limited | Households | 2013 |
| Seastar Shipping Co., Ltd. | Transport & logistics | 2023 |
| Seasun Technology Co., Ltd | Wholesale & retail | 2023 |
| Seatsmart Car Accessories Co., Ltd | Extraterritorial | 2024 |
| Seattle (UK) International Limited | Manufacturing | 2023 |
| Secidi Ltd | Other services | 2019 |
| Secondblonde Limited | Administrative & support | 2025 |
| Secular Society Ltd | Other services | 1898 |
| Secured Key Property Limited | Real estate | 2021 |
| Sedlogistics Ltd | Transport & logistics | 2021 |
| Seecha Group Limited | Extraterritorial | 2020 |
| Seedisc Industrial Technology Co., Ltd | Extraterritorial | 2020 |
| Seeds Consulting and Construction Limited | Construction | 2024 |
| Seer Trade Co., Limited | Manufacturing | 2023 |
| SEF Edu&Chem Ltd | Extraterritorial | 2020 |
| Segments 1 Limited | Information & communication | 2021 |
| Seguro Industrial Co., Ltd. | Extraterritorial | 2013 |
| Seiren Professional Consulting Ltd | Information & communication | 2026 |
| Selddon Ltd | Professional & scientific | 2024 |
| Selead Technology Ltd | Manufacturing | 2021 |
| Selected Foods Co., Ltd | Wholesale & retail | 2024 |
| Sema Catering Limited | Other services | 2018 |
| Sembi Electrical Services Limited | Construction | 2008 |
| Seminismar Co., Ltd | Wholesale & retail | 2024 |
| Senke Motorcycle UK Co., Ltd | Professional & scientific | 2015 |
| Senlin Limited | Wholesale & retail | 2022 |
| Seno Controls Co., Limited | Extraterritorial | 2015 |
| Senrui International Trade Co., Ltd | Manufacturing | 2023 |
| Sense & Scale Limited | Professional & scientific | 2025 |
| Sense Applications Limited | Information & communication | 2021 |
| Sensely Top Industrial Limited | Extraterritorial | 2011 |
| Sensi Industrial Technology Co., Ltd | Administrative & support | 2019 |
| Sentient Holdings Ltd | Real estate | 2020 |
| Sentinel Capital Limited | Other services | 2016 |
| Sentinel Capital UK Properties Limited | Real estate | 2022 |
| Sentny International Trading Co., Ltd | Wholesale & retail | 2014 |
| Sepil Co., Ltd | Extraterritorial | 2024 |
| Serenity Mental Health Ltd | Health & social care | 2025 |
| Serge Krancenblum LLP | | 2024 |
| Servcase Co., Ltd | Manufacturing | 2023 |
| Serviceby-Jkj Ltd | Wholesale & retail | 2023 |
| Seven Avenue Freehold Company Limited | Households | 2022 |
| Seven Avenue Management Company Limited | Real estate | 2004 |
| Seven Sails Marine Service&Logistic Co., Ltd | Manufacturing | 2022 |
| Seven Star Supply Chain Management Co., Limited | Extraterritorial | 2025 |
| SEVEN38 Limited | Construction | 2019 |
| Sevenaura Limited | Extraterritorial | 2024 |
| Sevenka Trading Limited | Manufacturing | 2019 |
| Sevensails IMP and EXP Co., Ltd | Wholesale & retail | 2019 |
| Seventeen Lismore Limited | Households | 2024 |
| Seventh Horizon Co., Limited | Extraterritorial | 2014 |
| Severn UK Valves Ltd | Extraterritorial | 2023 |
| Sevich International Group Limited | Wholesale & retail | 2021 |
| Seyi Industrial Co., Ltd | Extraterritorial | 2019 |
| Seymour Ventures Limited | Real estate | 2009 |
| SFO Design Ltd | Wholesale & retail | 2021 |
| Sftf Limited | Administrative & support | 2017 |
| SGA Retail Ltd | Wholesale & retail | 2025 |
| Sgcc Trading Co., Limited | Manufacturing | 2023 |
| SGR Building Services Ltd | Construction | 2014 |
| Sgsa Retail Ltd | Wholesale & retail | 2024 |
| SH ANT Co., Ltd | Extraterritorial | 2016 |
| Sh-Kt Hardware Limited | Professional & scientific | 2008 |
| Shacman Global Exporting Co., Ltd | Manufacturing | 2025 |
| Shaffer and Co Ltd | Information & communication | 2023 |
| Shambleden Capital Limited | Professional & scientific | 2023 |
| Shandong Boni Technology Development Co., Ltd. | Wholesale & retail | 2021 |
| Shandong Caifu Chemical Industry Limited | Extraterritorial | 2025 |
| Shandong Ceramic Fiber Industry Co., Ltd | Professional & scientific | 2016 |
| Shandong Dapoly Group Co., Ltd | Extraterritorial | 2020 |
| Shandong Deshang Chemical Co., Ltd. | Extraterritorial | 2022 |
| Shandong Elite Group Co., Ltd | Extraterritorial | 2014 |
| Shandong Faster Abrasive Tech Co., Ltd | Extraterritorial | 2024 |
| Shandong FI Teng Source Limited | Professional & scientific | 2021 |
| Shandong Giki Tyre Co., Ltd | Extraterritorial | 2015 |
| Shandong Haigen Biotechnology Co., Ltd | Extraterritorial | 2015 |
| Shandong Hicas Machinery (Group) Co., Ltd. | Extraterritorial | 2014 |
| Shandong Home Shield Gypsum Co., Ltd | Extraterritorial | 2019 |
| Shandong Hongcheng Steel Co., Ltd | Extraterritorial | 2023 |
| Shandong Huafeng Tyre Co., Ltd | Professional & scientific | 2017 |
| Shandong Jiade Group Co., Ltd | Extraterritorial | 2014 |
| Shandong Lihongyuan Metal Material Co., Ltd | Wholesale & retail | 2021 |
| Shandong Qianhe Steel Co., Ltd | Extraterritorial | 2022 |
| Shandong Qinchen Labor Protection Products Co., Ltd | Wholesale & retail | 2024 |
| Shandong Rockholder Tyre Co., Ltd | Wholesale & retail | 2020 |
| Shandong Shouguang Xiufeng Industry Co., Ltd | Wholesale & retail | 2019 |
| Shandong Simon Bearing Co., Ltd | Professional & scientific | 2017 |
| Shandong Wanshine Tire Co., Ltd | Extraterritorial | 2016 |
| Shandong Xintao New Material Co., Ltd | Professional & scientific | 2019 |
| Shandong Yingyu Metal Materials Co., Ltd | Wholesale & retail | 2023 |
| Shandong Yuanbang Steel Co., Ltd. | Manufacturing | 2024 |
| Shandong Yuteng Industrial Group Co., Ltd | Wholesale & retail | 2015 |
| Shandong Zhongtuo New Material Group Co Ltd | Extraterritorial | 2022 |
| Shanghai Alienware Electric Ltd | Extraterritorial | 2021 |
| Shanghai Anbe Trading Co., Ltd | Manufacturing | 2023 |
| Shanghai Aomed Ortho Technology Co., Ltd | Extraterritorial | 2017 |
| Shanghai Baosteel Autoparts Co., Ltd | Extraterritorial | 2019 |
| Shanghai Baoxinda Steel Co., Ltd | Wholesale & retail | 2026 |
| Shanghai Bomar Industrial Co., Limited | Professional & scientific | 2023 |
| Shanghai COS Freight Co., Ltd. | Extraterritorial | 2014 |