| ST Matthews Walk (Wibsey) Management Company Limited | Households | 1992 |
| ST Oldham Limited | Hospitality | 2023 |
| ST Oswald's West END Centre | Health & social care | 2011 |
| ST Paul's Church Management Company Limited | Real estate | 2008 |
| ST Properties Yorkshire Ltd | Real estate | 2024 |
| ST Takeout Limited | Hospitality | 2023 |
| ST Vincent DE Paul Society (England & Wales) | Health & social care | 1996 |
| Stable Routes CIC | Education | 2020 |
| Stable Routes Equine Assisted Learning Limited | Agriculture & fishing | 2021 |
| Stable Stage Productions Limited | Arts & recreation | 2025 |
| Staff Force Services Limited | Other services | 2017 |
| Staff Motion Ltd | Administrative & support | 2022 |
| Stafwise Limited | Information & communication | 2025 |
| Stage 84 Performing Arts Ltd | Education | 2011 |
| Stage 84 Productions Ltd | Arts & recreation | 2025 |
| Stagehouse Properties Ltd | Real estate | 2014 |
| Stainbeck Ltd. | Wholesale & retail | 2016 |
| Stainless Steel Welding Limited | Manufacturing | 2026 |
| Stairlift Servicing Ltd | Professional & scientific | 2019 |
| Stal (NW) Ltd | Professional & scientific | 2025 |
| Stallion Autos Ltd | Wholesale & retail | 2024 |
| Stallion Chauffeurs Ltd | Transport & logistics | 2022 |
| Stallion Knight Security Ltd | Financial services | 2021 |
| Stallions Renovation Ltd | Real estate | 2024 |
| Stallions Windows & Doors Ltd | Construction | 2024 |
| Stalliontrader Limited | Information & communication | 2022 |
| Stamford Valley Investments Limited | Real estate | 2024 |
| Stanley Mills Weavers Limited | Manufacturing | 2009 |
| Stannys Caribbean Ltd | Hospitality | 2025 |
| Stanroyd Limited | Other services | 2012 |
| Stansfield International Limited | Administrative & support | 2007 |
| Staple Arrangement Limited | Real estate | 2018 |
| Star Cargo Services Limited | Transport & logistics | 2019 |
| Star Chef Limited | Hospitality | 2026 |
| Star Covers (Leeds) Limited | Manufacturing | 1999 |
| Star Crystal Ltd | Administrative & support | 2019 |
| Star Education Plus Ltd | Education | 2021 |
| Star International Telecom Limited | Manufacturing | 2000 |
| Star LED Lighting Ltd | Wholesale & retail | 2023 |
| Star Libra Limited | Households | 2022 |
| Star Logistic and Distributions Limited | Wholesale & retail | 2018 |
| Star Nails (Leeds) Limited | Other services | 2015 |
| Star Royce Limited | Wholesale & retail | 2024 |
| Star Shopfront & Shutters Ltd | Manufacturing | 2025 |
| Star Tubes (UK) Limited | Wholesale & retail | 1990 |
| Star Wedding Decor & Textiles Ltd | Administrative & support | 2014 |
| Star X Cleaning Ltd | Administrative & support | 2025 |
| Stara Contracts Services Ltd | Administrative & support | 2017 |
| Stara Pipeline Services Ltd | Other services | 2025 |
| Starbake Group Ltd | Wholesale & retail | 2025 |
| Starbake Patisseries Ltd | Wholesale & retail | 2019 |
| Starfish Marketing Limited | Professional & scientific | 2011 |
| Stargate Communications Ltd | Information & communication | 2025 |
| Stargate Entertainment Ltd | Arts & recreation | 2024 |
| Starka Traders Limited | Other services | 2022 |
| Starksales Limited | Wholesale & retail | 2024 |
| Starline Commerce Ltd | Wholesale & retail | 2025 |
| Starline Retail Ltd | Manufacturing | 2026 |
| Starling UK PK Ltd | Wholesale & retail | 2016 |
| Stars BD2 Limited | Real estate | 2025 |
| Starseedslrm Ltd | Hospitality | 2022 |
| Starsports Coaching and Fitness Ltd | Arts & recreation | 2024 |
| Start Stop Ltd | Transport & logistics | 2019 |
| Startwise Hub Ltd | Education | 2025 |
| Starworld Production Ltd | Professional & scientific | 2024 |
| Starzak Transport Ltd | Transport & logistics | 2017 |
| Stash Fine Yarns (Bradford) Limited | Wholesale & retail | 2016 |
| Stash'N'Store Ltd | Other services | 2025 |
| Station Hotel & Restaurant (MAN RD.) Ltd | Hospitality | 2025 |
| Station Road Stallingborough Limited | Construction | 2021 |
| Statuesque Ltd | Wholesale & retail | 2015 |
| Status Computer Solutions Limited | Information & communication | 2003 |
| Status Estates Ltd | Real estate | 2021 |
| Status Fisheries BD5 Limited | Hospitality | 2024 |
| Status Fisheries Express Ltd | Hospitality | 2025 |
| Status International (Holdings) Limited | Real estate | 2013 |
| Status International (UK) Ltd | Wholesale & retail | 1990 |
| Status Trading Limited | Construction | 2017 |
| Status-Uk Ltd | Wholesale & retail | 2020 |
| Stay Blackpool Rooms Limited | Hospitality | 2018 |
| Stay Blessed Ltd | Manufacturing | 2019 |
| Stay Elevate Holdings Ltd | Financial services | 2026 |
| Stay Healthy Healthcare Services Ltd | Health & social care | 2023 |
| Stay Kindred Ltd | Hospitality | 2021 |
| Stay North Digital Ltd | Professional & scientific | 2025 |
| Staycatchers Ltd | Construction | 2018 |
| Staysmartproperties Ltd | Real estate | 2025 |
| Staywise Group Ltd | Real estate | 2026 |
| Stazja & Jack Trans Ltd | Transport & logistics | 2019 |
| STB Worldwide Limited | Financial services | 2019 |
| Stcb Limited | Financial services | 2023 |
| Steadfast (Great Northern) Group Limited | Financial services | 2024 |
| Steadfast Loft Boarding Limited | Construction | 2023 |
| Steadfast Manufacturing and Storage Limited | Manufacturing | 2005 |
| Steadfast Works Ltd | Manufacturing | 2021 |
| Steak Bros Ltd | Hospitality | 2025 |
| Steakwala Ltd | Hospitality | 2025 |
| Steel Fabrications (Burton on Trent) Limited | Construction | 1962 |
| Steel Products Direct Limited | Wholesale & retail | 2004 |
| Steelis Workwear Limited | Wholesale & retail | 2014 |