| Supreme Venetian Ltd | Construction | 2023 |
| Supremo Overseas Ltd | Real estate | 2017 |
| Supriya Agency Ltd | Health & social care | 2017 |
| Supsail Ltd | Manufacturing | 2024 |
| SUR Electronics Limited | Wholesale & retail | 2025 |
| Sura Power Limited | Professional & scientific | 2010 |
| Suratiwala Taste Ltd | Hospitality | 2023 |
| Surbiton Court Mews Management Ltd | Real estate | 2023 |
| Surcal Holdings Limited | Real estate | 2024 |
| Surcal Properties Ltd | Real estate | 2020 |
| Sure Cover Care Limited | Administrative & support | 2023 |
| Sure Heat Limited | Construction | 2013 |
| Sure Property Developments Limited | Real estate | 2006 |
| Sure Stitch Ltd | Manufacturing | 2018 |
| Surefast (Fasteners) Limited | Wholesale & retail | 2000 |
| Suregraft Roofing Limited | Other services | 2018 |
| Surelogic Ltd | Manufacturing | 2002 |
| Surepak Holdings Limited | Financial services | 2024 |
| Surf N Turf Limited | Hospitality | 2015 |
| Surface & Style Ltd | Construction | 2025 |
| Surface Water Solutions Ltd | Construction | 2024 |
| Surgery Compare Limited | Information & communication | 2016 |
| Surgeryside Pharmacy Limited | Wholesale & retail | 2025 |
| Surgex of Coventry Limited | Real estate | 1963 |
| Surgi Homecare Ltd | Information & communication | 2024 |
| Surgical Instrument Specialists Ltd | Wholesale & retail | 2013 |
| Surgiheal Limited | Health & social care | 2023 |
| Suri Holdings Limited | Financial services | 2018 |
| Suri Marketing Leicester Ltd | Professional & scientific | 2025 |
| Suribo Ltd | Wholesale & retail | 2019 |
| Surin Fashions Limited | Wholesale & retail | 1985 |
| Surin Investments Limited | Real estate | 2006 |
| Surin Limited | Wholesale & retail | 2020 |
| Suriya Holdings Ltd | Financial services | 2019 |
| Suriya Limited | Wholesale & retail | 2003 |
| Surjit Saund Trading Limited | Hospitality | 2016 |
| Surko Limited | Wholesale & retail | 2025 |
| Surma Bangla Ltd | Wholesale & retail | 2024 |
| Surma Dorset Limited | Hospitality | 2019 |
| Surnan Properties Ltd | Real estate | 2025 |
| Surplus Match Ltd | Wholesale & retail | 2007 |
| Surti Holdings Ltd | Real estate | 2017 |
| Surti Singoda PAN Ltd | Hospitality | 2021 |
| Survehub Global Ltd | Information & communication | 2020 |
| Surveying and Building Services Limited | | 1983 |
| Surveyor Plus Limited | Professional & scientific | 2019 |
| Survival Fitness Ltd | Health & social care | 2022 |
| Sushi Cafe Ltd | Hospitality | 2025 |
| Sushi Take Away Limited | Hospitality | 2022 |
| Sustain Consultants Limited | Professional & scientific | 2017 |
| Sustainability Concepts Ltd | Wholesale & retail | 2025 |
| Sustainability Group Limited | Financial services | 2026 |
| Sustainability ROX Limited | Professional & scientific | 2024 |
| Sustainable Sourcing Solutions Ltd | Professional & scientific | 2022 |
| Sustineri Properties Limited | Real estate | 2023 |
| Sustremify Ltd | Information & communication | 2015 |
| Sutari Limited | Administrative & support | 2013 |
| Sutcliffe Gatling Ltd | Wholesale & retail | 2024 |
| Sutton Coldfield Healthcare Ltd | Health & social care | 2019 |
| Sutton in the Elms Limited | Health & social care | 2019 |
| Sutton Land Development Limited | Construction | 2011 |
| Sutton St.James Store Ltd | Wholesale & retail | 2017 |
| Suttons Cloud Ltd | Information & communication | 2021 |
| SV Coaching Ltd | Professional & scientific | 2024 |
| SV Dental Care Ltd | Health & social care | 2026 |
| SV Distribution Ltd | Wholesale & retail | 2025 |
| SV Motors Limited | Wholesale & retail | 2025 |
| SVA Investments Limited | Real estate | 2025 |
| Svaha Ltd | Real estate | 2023 |
| Svans Properties Ltd | Real estate | 2016 |
| Svarna Jewellers Ltd | Wholesale & retail | 2025 |
| SVC Trading Limited | Education | 2025 |
| Svitch Ltd | Hospitality | 2024 |
| SVJ Enterprises Limited | Health & social care | 2019 |
| SVJ Group Ltd | Wholesale & retail | 2021 |
| SVK Ltd | Transport & logistics | 2022 |
| SVP IT Consulting Limited | Information & communication | 2016 |
| Svrgoods and Transports Limited | Transport & logistics | 2025 |
| SVS Balaji Retail Limited | Wholesale & retail | 2025 |
| SVS Developments Limited | Financial services | 2018 |
| Svscsolutions Limited | Information & communication | 2025 |
| Svsr Limited | Real estate | 2021 |
| Svuk Limited | Health & social care | 1998 |
| SW & HW Management Limited | Financial services | 2021 |
| SW Amazon Trader Ltd | Wholesale & retail | 2024 |
| SW Optical Ltd | Other services | 2021 |
| SW Security Services Ltd | Administrative & support | 2007 |
| SW16 Capital Ltd | Financial services | 2022 |
| Swaad-E-Punjab Ltd | Hospitality | 2025 |
| Swaadeshi (UK) Limited | Wholesale & retail | 2024 |
| Swahili Media Network CIC | Manufacturing | 2025 |
| Swallow Drinks Limited | Wholesale & retail | 2020 |
| Swallownest Fish Bar Limited | Hospitality | 2018 |
| Swamy Consulting Ltd | Information & communication | 2011 |
| Swan Courier Ltd | Transport & logistics | 2018 |
| Swan Selections Ltd | Wholesale & retail | 2023 |
| Swan Smiles Ltd | Health & social care | 2020 |
| Swann Investments Limited | Financial services | 2022 |
| Swansea OP Limited | Wholesale & retail | 2025 |
| Swansweb Ltd | Education | 2014 |