| Stones Properties (Nottingham) Limited | Real estate | 2016 |
| Stones Sankey Developments Limited | Construction | 2015 |
| Stoneseed Limited | Information & communication | 2009 |
| Stoneseed Recruitment Limited | Administrative & support | 2023 |
| Stoneserv Limited | Information & communication | 2022 |
| Stoneside Limited | Financial services | 2022 |
| Stonestile Limited | Real estate | 1985 |
| Stonewall Properties Ltd | Real estate | 2015 |
| Stoney Ceramics Ltd | Construction | 2020 |
| Stoney Coffee Ltd | Hospitality | 2024 |
| Stoney Creek Wind Farm Limited | Energy | 2014 |
| Stoney Property Limited | Real estate | 2024 |
| Stoney Students Limited | Construction | 2025 |
| Stop and Stare Fashion Limited | Wholesale & retail | 2022 |
| Stop Here Limited | Real estate | 2007 |
| Stop Mart Ltd | Wholesale & retail | 2026 |
| Stopmart 4 US Ltd | Wholesale & retail | 2025 |
| Stoppards Limited | Wholesale & retail | 2023 |
| Stopsley Limited | Administrative & support | 2020 |
| Storage Space Limited | Administrative & support | 2004 |
| Storageffective Limited | Professional & scientific | 1998 |
| Storal GR Limited | Administrative & support | 2019 |
| Storal Learning Ltd | Education | 2016 |
| Storal Nurseries Limited | Education | 1989 |
| Store It.Com Limited | Extraterritorial | 2004 |
| Storeezy Ltd | Information & communication | 2021 |
| Storelynx UK Limited | Manufacturing | 2009 |
| Storer Refrigeration and Catering Manufacturers Limited | Manufacturing | 1987 |
| Storevia Ltd | Wholesale & retail | 2025 |
| Storey & Moore Holdings Limited | Financial services | 2022 |
| Storey Associates (GB) Ltd | Professional & scientific | 2013 |
| Storeybuild Limited | Construction | 2015 |
| Storeycomp Ltd | Information & communication | 2024 |
| Storeys Hardware Ltd | Wholesale & retail | 2026 |
| Storied Limited | Manufacturing | 2022 |
| Storify Ltd | Wholesale & retail | 2025 |
| Storm Business Consultants Limited | Professional & scientific | 2007 |
| Storm Contractors Ltd | Construction | 2012 |
| Storm INK Limited | Administrative & support | 2013 |
| Stormin Property Sourcing Ltd | Real estate | 2019 |
| Stormywaves Ltd | Real estate | 2025 |
| Stoughton Lodge Farm Developments Limited | Real estate | 2004 |
| Stowbon Consulting Ltd | Information & communication | 2022 |
| Stowe Residential Ltd | Real estate | 2023 |
| Stoyan Vapez Limited | Wholesale & retail | 2024 |
| Stoyanovi Properties Limited | Real estate | 2017 |
| STP Nutrition Ltd | Wholesale & retail | 2026 |
| STR Digital Ltd | Other services | 2021 |
| STR Nottingham Group Limited | Construction | 2025 |
| STR29 Ltd | Households | 2024 |
| Straight White Limited | Health & social care | 2019 |
| Straighten Talking Ltd | Education | 2024 |
| Strand Furniture Limited | | 1973 |
| Strands by Libby Ltd | Other services | 2023 |
| Strandwell Ltd | Professional & scientific | 2026 |
| Straplan Ltd | Professional & scientific | 2005 |
| Strata Financial Resourcing Ltd | Financial services | 2006 |
| Strata Joinery Limited | Construction | 2023 |
| Strata Materials Ltd | Wholesale & retail | 2026 |
| Stratajet Investments Limited | Real estate | 2017 |
| Stratasys Powder Production Ltd | Wholesale & retail | 2018 |
| Strategic Access Advisory Ltd | Professional & scientific | 2026 |
| Strategic Capital Services Ltd | Professional & scientific | 2015 |
| Strategic Data Consultancy Ltd | Construction | 2025 |
| Strategic Transport Logics Ltd | Transport & logistics | 2020 |
| Strategiq Solutions Ltd | Professional & scientific | 2024 |
| Strategy Based Solutions Ltd | Administrative & support | 2023 |
| Stratford Upon Avon Funeral Services Limited | Extraterritorial | 1991 |
| Stratford Upon Avon Optical Limited | Other services | 2006 |
| Strathium Group Limited | Arts & recreation | 2025 |
| Stratigen Limited | Administrative & support | 2002 |
| Stratos a R Limited | Construction | 2013 |
| Stratosmind Limited | Information & communication | 2024 |
| Stratospheric Platforms (UK) Limited | Professional & scientific | 2021 |
| Stratstone Automotive Limited | Wholesale & retail | 1919 |
| Stratstone Cars Limited | Wholesale & retail | 1954 |
| Stratstone Limited | Wholesale & retail | 1999 |
| Stratstone Luxury Vehicles Limited | Wholesale & retail | 1954 |
| Stratstone Motor Holdings Limited | Professional & scientific | 1999 |
| Stratstone Specialist Cars Limited | Wholesale & retail | 1963 |
| Stratstone Sports Cars Limited | Wholesale & retail | 1990 |
| Stratstone.Com Limited | Wholesale & retail | 1999 |
| Stratum Consulting Ltd | Information & communication | 2024 |
| Stratus Credit Consultancy Limited | Financial services | 1996 |
| Straw and Bramley Limited | Professional & scientific | 1993 |
| Strawberry Fayre Limited | Wholesale & retail | 2025 |
| Strawberry Heights RTM Company Ltd | Households | 2020 |
| Strawberry Wood (Gotham) Community Interest Company | Real estate | 2022 |
| Stream Health Training Centre Ltd | Education | 2023 |
| Stream Rooms Media Limited | Information & communication | 2024 |
| Stream Studio Limited | Administrative & support | 2014 |
| Streamline Contractors Ltd | Wholesale & retail | 2019 |
| Streamline Homes Limited | Real estate | 2012 |
| Streamlyst Ltd | Information & communication | 2026 |
| Streams of Joy International Ministries | Other services | 2017 |
| Streatham High Road Ltd | Real estate | 2008 |
| Street Food Solutions UK Ltd | Wholesale & retail | 2015 |
| Street Reach ADS Ltd | Professional & scientific | 2026 |
| Streeter West Limited | Professional & scientific | 2001 |
| Streetreup Limited | Wholesale & retail | 2026 |