| Soliman Consulting Ltd | Information & communication | 2025 |
| Solingen Private Equity Limited | Financial services | 2014 |
| Solingen Private Equity NO 1 Limited Partnership | | 2014 |
| Solingen Private Equity Partners LLP | | 2014 |
| Solingen Private Equity Partners NO 2 LLP | | 2015 |
| Solivia Ltd | Wholesale & retail | 2019 |
| Soll Refinish Ltd | Construction | 2016 |
| Sollo Properties Ltd | Real estate | 2026 |
| Solmare Ltd | Professional & scientific | 2011 |
| Solo CUP (UK) Limited | Professional & scientific | 2000 |
| Solo CUP Finance Limited | Professional & scientific | 2010 |
| Solo Development & Construction Limited | Construction | 2009 |
| Solo International Limited | Wholesale & retail | 1995 |
| Solo Search Services Limited | Administrative & support | 2005 |
| Solo Sheeting Ltd | Construction | 2015 |
| Solo Valeting Limited | Administrative & support | 2023 |
| Soloavd Transport Limited | Transport & logistics | 2025 |
| Solomj Ltd | Transport & logistics | 2019 |
| Solomon Technology Limited | Information & communication | 2013 |
| Solomon Transportation Limited | Transport & logistics | 2025 |
| Solomon’S Consultancy Partners Ltd | Real estate | 2025 |
| Solonko Ltd | Health & social care | 2022 |
| Solootions Limited | Construction | 2006 |
| Solros Construction Limited | Construction | 2020 |
| Solros Group Holdings Ltd | Financial services | 2021 |
| Solros Ltd | Construction | 2025 |
| Solros Physiotherapy Limited | Health & social care | 2021 |
| Solros Specialist Services Ltd | Professional & scientific | 2021 |
| Sols Allotment Ltd | Administrative & support | 2017 |
| Solstice Haus Co Ltd | Wholesale & retail | 2025 |
| Solterra Studio Limited | Wholesale & retail | 2025 |
| Solutek Environmental Limited | Construction | 2013 |
| Solutions Ekonomi Office Ltd | Professional & scientific | 2021 |
| Solutions for Industry Ltd | Professional & scientific | 2021 |
| Solutions for the MRI Limited | Other services | 2019 |
| Solutions Lighting Limited | Manufacturing | 2008 |
| Solutions Packaging Ltd | Wholesale & retail | 2014 |
| Solutions Registered Office Limited | Professional & scientific | 2021 |
| Solutions Secretaries Ltd | Professional & scientific | 2021 |
| Solutions Shareholder Office Limited | Professional & scientific | 2021 |
| Solutions Support Office Ltd | Professional & scientific | 2021 |
| Solutions With .NET Ltd | Information & communication | 2010 |
| Solutionsbolagsproffs Ltd | Professional & scientific | 2021 |
| Solutionsbolagsservice Limited | Professional & scientific | 2021 |
| Soluxe Properties Ltd | Real estate | 2025 |
| Solval Ltd | Arts & recreation | 2024 |
| Solvate Solutions Limited | Information & communication | 2024 |
| Solvendo Ltd | Professional & scientific | 2015 |
| Solvenox Ltd | Manufacturing | 2022 |
| Solventis Ltd. | Wholesale & retail | 1997 |
| Solventis Solutions Ltd | Wholesale & retail | 2006 |
| Solvenza Limited | Financial services | 2012 |
| Solverb IT Solutions Ltd | Information & communication | 2024 |
| Solvgrin Limited | Households | 1973 |
| Solvnow Limited | Professional & scientific | 2010 |
| Solway Capital Ltd | Real estate | 2010 |
| Solway Firth Ltd | Real estate | 2025 |
| SOM Solutions Limited | Wholesale & retail | 2025 |
| Soma Omar Ltd | Health & social care | 2025 |
| Somanest UK Ltd | Wholesale & retail | 2025 |
| Somarcha Ltd | Hospitality | 2025 |
| Some Property Company Limited | Construction | 1999 |
| Somerby Hall Farm Limited | Administrative & support | 2005 |
| Somerford Real Estate Limited | Professional & scientific | 2016 |
| Somerset House Retail Group Ltd | Wholesale & retail | 2023 |
| Something Wicked Holdings Limited | Manufacturing | 2016 |
| Somewheremusical Ltd | Arts & recreation | 2023 |
| Somnus Limited | Manufacturing | 2001 |
| SON COV Ltd | Hospitality | 2026 |
| Sona (Yorkshire) Ltd | Administrative & support | 2024 |
| Sonal Nigam Limited | Information & communication | 2012 |
| Sonali Pocklington Limited | Hospitality | 2013 |
| Sonamau Limited | Health & social care | 2025 |
| Sonba Ltd | Administrative & support | 2024 |
| Sond Ltd | Health & social care | 2022 |
| Sond Property Limited | Real estate | 2023 |
| Sondad Ltd | Manufacturing | 2012 |
| Sonder & Clay IP Limited | Professional & scientific | 2018 |
| Sonder IP Limited | Professional & scientific | 2022 |
| Sonder LAB Ltd | Professional & scientific | 2019 |
| Sonder Lifestyle Group Ltd | Wholesale & retail | 2024 |
| Sonder Studios Limited | Information & communication | 2018 |
| Song Fast Food Ltd | Hospitality | 2025 |
| Soniapersida Ltd | Transport & logistics | 2026 |
| Sonmarg Investments Limited | Real estate | 2019 |
| Sonny Automatic Driving School Ltd | Education | 2026 |
| Sonny Cat Ltd | Hospitality | 2019 |
| Sono Medical Ltd | Health & social care | 2026 |
| Sonocea Group Limited | Information & communication | 2024 |
| Sonocent Holdings Ltd | Financial services | 2018 |
| Sonocent Ltd | Information & communication | 2007 |
| Sonofthepear Ltd | Professional & scientific | 2025 |
| Sonovista Ltd | Health & social care | 2025 |
| Sonter Engineering Limited | Professional & scientific | 2021 |
| Sony Developments Limited | Real estate | 2023 |
| Sook Fashion Ltd | Other services | 2015 |
| Sooq Ltd | Wholesale & retail | 2021 |
| Sooqly Ltd | Information & communication | 2024 |
| Sooraj Enterprise Limited | Wholesale & retail | 2024 |
| Soosi 2 Ltd | Hospitality | 2026 |