| Sfsam Ltd | Transport & logistics | 2026 |
| SG Optom Limited | Wholesale & retail | 2015 |
| SG Sign Group Ltd | Professional & scientific | 2019 |
| SGA Railway Services Ltd | Construction | 2016 |
| SGD BS Ltd | Wholesale & retail | 2025 |
| SGH Distriibution Limited | Manufacturing | 2010 |
| SGH Nexus Limited | Administrative & support | 2025 |
| SGR Banstead Limited | Real estate | 2023 |
| SHA Cars Ltd | Wholesale & retail | 2019 |
| Shaam Hall Limited | Real estate | 2023 |
| Shaam Truck Ltd | Hospitality | 2026 |
| Shaark Ltd | Wholesale & retail | 2018 |
| Shades Solutions Ltd | Construction | 2024 |
| Shah Enterprice Ltd | Wholesale & retail | 2022 |
| Shah Importation Limited | Wholesale & retail | 2022 |
| Shah's Leytonstone Ltd | Hospitality | 2025 |
| Shahs Luton Ltd | Hospitality | 2024 |
| Shahs Streatham Ltd | Hospitality | 2023 |
| Shaiki Ltd | Wholesale & retail | 2017 |
| Shaip Holdings Limited | Financial services | 2021 |
| Shakspharm Ltd | Health & social care | 2025 |
| Shaktibp Property Ltd | Real estate | 2017 |
| Shala Property Limited | Real estate | 2018 |
| Shaligram Infotech Ltd | Information & communication | 2017 |
| Shalom Caterers Limited | Hospitality | 2021 |
| Shaluxehair Ltd | Other services | 2020 |
| Shamola Ltd | Hospitality | 2016 |
| Shanekotecha Limited | Hospitality | 2024 |
| Shanghai Express (Kentish Town) Ltd | Hospitality | 2026 |
| Shanghai KAI HUI Overseas Study Service Co Ltd | Education | 2025 |
| Shanstone Limited | Construction | 2025 |
| Shanti Tech Labs Ltd | Information & communication | 2023 |
| Sharachchandra Equities Limited | Real estate | 2025 |
| Share a Smile Limited | Health & social care | 2006 |
| Shared Home 24 Ltd | Real estate | 2023 |
| Sharif Housing Solutions Limited | Construction | 2025 |
| Sharif Security Solutions Ltd | Administrative & support | 2025 |
| Shark Infested Records Limited | Information & communication | 2020 |
| Shark Stark Ltd | Information & communication | 2023 |
| Sharon Stone Notary Public Limited | Professional & scientific | 2025 |
| Sharp Looks Ltd | Administrative & support | 2019 |
| Sharppr Limited | Other services | 2011 |
| Shaunak Popat Orthodontists Ltd | Health & social care | 2018 |
| Shay Medical Limited | Health & social care | 2013 |
| Shayavni Limited | Health & social care | 2022 |
| SHE Beauty Center Ltd | Other services | 2013 |
| Shecale Care Limited | Health & social care | 2022 |
| Shecale's Export and Import Limited | Wholesale & retail | 2025 |
| Sheebah Ltd | Information & communication | 2020 |
| Sheetals Hair & Beauty (Edgware) Ltd | Other services | 2026 |
| Shekinah Cuisine Ltd | Hospitality | 2025 |
| Shelley Close (Edgware) Limited | Other services | 2003 |
| Sheltery Housing Limited | Real estate | 2020 |
| Shenbay Limited | Professional & scientific | 2004 |
| Shercuterie Limited | Hospitality | 2022 |
| Shergar Capital Ltd | Real estate | 2017 |
| Sheridan Education Ltd | Education | 2021 |
| Sherlock Land and Developments Ltd | Construction | 2018 |
| Sherry's Interior Design Limited | Manufacturing | 2026 |
| Sheru Properties Limited | Real estate | 2022 |
| Shesha Properties Limited | Real estate | 2026 |
| SHG Associates Ltd | Information & communication | 2012 |
| Shia Properties Limited | Real estate | 2023 |
| Shield Financial Compliance (UK) Limited | Information & communication | 2021 |
| Shikfix Ltd | Construction | 2019 |
| Shiloh Made Ltd | Wholesale & retail | 2025 |
| Shine on Productions London Limited | Construction | 2011 |
| Shine SEN Ltd | Education | 2022 |
| Shing KEE Holding Limited | Real estate | 2019 |
| Shiny Sparkle Services Ltd | Administrative & support | 2025 |
| Shinynest Cleaning Services Ltd | Administrative & support | 2024 |
| Shisha Tasting Centre Limited | Households | 2018 |
| Shiv Ananta Ltd | Wholesale & retail | 2024 |
| Shiv Property Investments Limited | Real estate | 2007 |
| Shiva Data Ltd | Information & communication | 2024 |
| Shiva Heating and Plumbing Ltd | Wholesale & retail | 2022 |
| Shivam Construction Ltd | Construction | 2023 |
| Shivana Anand Ltd | Health & social care | 2015 |
| Shivarathna Shristi Engineering Limited | Professional & scientific | 2012 |
| Shivdaal Limited | Wholesale & retail | 1992 |
| Shivdarshan Limited | Wholesale & retail | 2009 |
| Shogun Brighton Ltd | Extraterritorial | 2024 |
| Shogun Pacific Ltd | Health & social care | 2025 |
| Shoocctv Ltd | Construction | 2023 |
| Shooting Star Tuition Ltd | Education | 2020 |
| Shopized Ltd | Wholesale & retail | 2025 |
| Shore Drive Limited | Wholesale & retail | 2025 |
| Shoreland Limited | Real estate | 1997 |
| Shorn Barbers Limited | Other services | 2017 |
| Shotokan Karate Harrow Ltd | Arts & recreation | 2025 |
| Showcase Artists Management Limited | Arts & recreation | 2012 |
| Showcase Weddings Limited | Other services | 2015 |
| Shree Hari Foods Ltd | Wholesale & retail | 2025 |
| Shree Hari KP Limited | Construction | 2013 |
| Shree Hari Krupa Limited | Real estate | 2025 |
| Shree JI Global Ltd | Real estate | 2017 |
| Shree Swami Limited | Professional & scientific | 2009 |
| Shreeji Infinity Services Ltd | Construction | 2024 |
| Shreeji Local Ltd | Wholesale & retail | 2024 |
| Shri Hari Catering Ltd | Hospitality | 2025 |