| Promotional Vehicles Ltd | Other services | 2013 |
| Properties NJ Ltd | Real estate | 2024 |
| PSN Motors Limited | Wholesale & retail | 2025 |
| Psycheia Ltd | Information & communication | 2026 |
| Pyvo UK Ltd | Wholesale & retail | 2016 |
| QC Law Solicitors Ltd | Professional & scientific | 2015 |
| Quickstack Group Ltd | Information & communication | 2021 |
| R D S Property Developments Ltd | Construction | 2025 |
| R Easton Powersystems Ltd | Construction | 2023 |
| R Trowse Plumbing & Heating Limited | Construction | 2017 |
| Ralph G Wilson Limited | Wholesale & retail | 2010 |
| Rammgoods Ltd | Wholesale & retail | 2025 |
| Rawlings Diesel Services Ltd | Professional & scientific | 2025 |
| Refill Energy Ltd | Wholesale & retail | 2024 |
| Rentacarpet Limited | Professional & scientific | 1991 |
| Rentamat Limited | Professional & scientific | 1995 |
| Rite Choice Windows (Spen Valley) Ltd | Construction | 2011 |
| Rosies Nails Ltd | Other services | 2024 |
| Rounding Energy Design Services Limited | Professional & scientific | 2026 |
| RS Orange Ltd | Other services | 2026 |
| RT Wholesale Ltd | Wholesale & retail | 2025 |
| RUG World Ltd | Manufacturing | 2017 |
| RWP Services Ltd | Public administration | 2020 |
| Ryder Management Services Limited | Professional & scientific | 2017 |
| S & G Construction (Yorkshire) Limited | Construction | 2025 |
| S & S Motors Limited | Wholesale & retail | 1983 |
| S. Brierley & Sons Limited | Construction | 1986 |
| Sabai Sabai Spa Ltd | Other services | 2016 |
| Safe Hand Security Ltd | Administrative & support | 2024 |
| Saffron Park Management Company Limited | Households | 2014 |
| Same Day Concrete Limited | Manufacturing | 2025 |
| Sana Hassaan Limited | Health & social care | 2022 |
| Sarania Ltd | Wholesale & retail | 2025 |
| SBF Liftrucks Limited | Manufacturing | 2019 |
| SGC Consultants Ltd | Information & communication | 2007 |
| Shemeansbusiness 25 Ltd | Professional & scientific | 2025 |
| Silvergaming Ltd | Information & communication | 2023 |
| SJ Consultation Ltd | Education | 2025 |
| Smart Physio Ltd | Health & social care | 2022 |
| Smart Talking Limited | Wholesale & retail | 2014 |
| Smart Translations Ltd | Professional & scientific | 2025 |
| Smartlec Limited | Construction | 2022 |
| SMD Bespoke Joinery Ltd | Construction | 2024 |
| Smith Parcels Ltd | Transport & logistics | 2025 |
| Solutions Home Improvements Ltd | Construction | 2025 |
| Sommer Rose Contracts Limited | Professional & scientific | 2026 |
| Sommer Rose Interiors Ltd | Professional & scientific | 2018 |
| Sparkid Limited | Construction | 2018 |
| Spen Valley Crafts Ltd | Other services | 2025 |
| Spen Valley Dyers Ltd | Other services | 2025 |
| Spencer Limited | Professional & scientific | 2007 |
| Sport Funding Ltd | Financial services | 2019 |
| SR Empire Ltd | Wholesale & retail | 2021 |
| Stag Sports (Holdings) Ltd | Financial services | 2019 |
| Stag Sports Limited | Manufacturing | 2007 |
| Standeven Builders (Yorkshire) Limited | Real estate | 1976 |
| Standeven Holdings Ltd | Professional & scientific | 2014 |
| Standeven Properties Limited | Real estate | 2001 |
| Statement Joinery Limited | Construction | 2012 |
| STE5 Operational Property Consultants Ltd | Professional & scientific | 2021 |
| Steam Workshop Designs Ltd | Manufacturing | 2023 |
| Steam Workshop Publishing Limited | Information & communication | 2020 |
| Steam Workshop Servicing Ltd | Manufacturing | 2025 |
| Steam Workshop Stores Ltd | Manufacturing | 2019 |
| Steward Engineering Ltd. | Wholesale & retail | 2012 |
| Stocksford Limited | Hospitality | 2015 |
| Stone Artisans Ltd | Manufacturing | 2025 |
| Stonehouse Holdings Yorkshire Ltd | Real estate | 2025 |
| Stonehouse the BED Company Ltd | Manufacturing | 2013 |
| Strawberry Cirque CIC | Education | 2026 |
| Suncity Estates Private Limited | Real estate | 2021 |
| Suspended Ceilings Limited | Construction | 2002 |
| Sustainable Traffic Solutions Ltd | Construction | 2024 |
| T&S Holidays Ltd | Real estate | 2025 |
| T.K. Halford LLP | | 2001 |
| T.N.M Joinery Ltd | Construction | 2023 |
| Tate Swithen Bespoke Ltd | Manufacturing | 2023 |
| TCS Structures Ltd | Manufacturing | 2017 |
| Teachersxchange Limited | Wholesale & retail | 2021 |
| Tefson Property Management Ltd | Real estate | 2021 |
| TFS Yorkshire Ltd | Wholesale & retail | 2013 |
| THE Cafe Cloud Ltd | Information & communication | 2023 |
| THE Dome Regeneration Co Limited | Construction | 2013 |
| THE Food Forum Limited | Hospitality | 2023 |
| THE Free From Spot Ltd | Hospitality | 2025 |
| THE Golden Fish (Liversedge) Limited | Hospitality | 2023 |
| THE Home Design Studio Yorkshire Ltd | Construction | 2021 |
| THE Little Luxe Party Co Ltd | Information & communication | 2024 |
| THE LOG Yard Limited | Manufacturing | 2019 |
| THE Marketing & Research Network Limited | Professional & scientific | 1993 |
| THE Spenborough Co-Operative Trust | Education | 2012 |
| THE Steam Workshop Ltd | Wholesale & retail | 2016 |
| THE Suns the Limit Limited | Hospitality | 2014 |
| Thirtysix Competitions Ltd | Arts & recreation | 2026 |
| Thrivemyway LLP | | 2026 |
| Toby Liver Ltd | Hospitality | 2023 |
| Todd & Co. Estates Limited | Real estate | 2025 |
| Tolson Holdings Limited | Financial services | 2018 |
| Tolson Limited | Manufacturing | 2002 |
| Topland Comms Limited | Information & communication | 2013 |