| Stauff UK Limited | Wholesale & retail | 1990 |
| Staveley Cast Products Limited | Extraterritorial | 2001 |
| Steve Ives Decorators Ltd | Construction | 2003 |
| Steve Kelly Consulting Ltd | Professional & scientific | 2007 |
| Stonegate Financial Advisers Limited | Financial services | 2007 |
| Stoneoaks Developments Limited | Construction | 2004 |
| Stubbing Court Training Limited | Administrative & support | 2003 |
| Student Line Limited | Financial services | 1993 |
| Studio of the North Limited | Information & communication | 2003 |
| Sumbabeus Limited | Health & social care | 2019 |
| Sunrisestar Limited | Real estate | 1995 |
| Sure Property Investments Ltd | Construction | 2025 |
| Surveysoft Engineering Ltd | Professional & scientific | 2006 |
| Sutherland Farms Limited | Agriculture & fishing | 1999 |
| Swaran Mini Market Limited | Wholesale & retail | 2003 |
| Swinton Lock Activity Centre | Arts & recreation | 2004 |
| Syac Limited | Administrative & support | 1995 |
| SYB (UK) Limited | Real estate | 2005 |
| T & T Automation Limited | Manufacturing | 2001 |
| T L Joinery & Construction (Sheffield) Ltd | Manufacturing | 1995 |
| T W C Properties Limited | Real estate | 2025 |
| T W Ward Machinery Limited | Professional & scientific | 2002 |
| T-Link Services Ltd | Professional & scientific | 2026 |
| T. & H. Hopkin Limited | Wholesale & retail | 1947 |
| T.M.K. Supermarket Limited | Wholesale & retail | 1985 |
| Taitwt Limited | Real estate | 1999 |
| Taylor Development Services Ltd | Construction | 2018 |
| Taylor Minshall Ltd. | Other services | 2023 |
| Taymar Properties Limited | Professional & scientific | 1989 |
| Tazy Properties Limited | Real estate | 2005 |
| TDR Transmission Ltd | Manufacturing | 1981 |
| Teco Europe Ltd | Other services | 1954 |
| Teco/Elemelt Limited | Extraterritorial | 1990 |
| Temar Precision Engineers Limited | Manufacturing | 2004 |
| TEN Xgrowth Limited | Professional & scientific | 2018 |
| Tensecrete Limited | Manufacturing | 1984 |
| Thatcham Systems Limited | Wholesale & retail | 2005 |
| THE a & S Leisure Group Limited | Arts & recreation | 1968 |
| THE Alloy Steel Melting Company Limited | Manufacturing | 1997 |
| THE Arbourthorne Centre Ltd | Education | 2004 |
| THE Barnsley Chronicle Pension Scheme (2001) Trustee Limited | Administrative & support | 2001 |
| THE Barnsley Chronicle Pension Scheme Trustee Limited | Financial services | 1994 |
| THE Car Lounge Yorkshire Ltd | Wholesale & retail | 2019 |
| THE Carr Fenton Foundation | Education | 2000 |
| THE Chippings Residents' Association Limited | Households | 1991 |
| THE City of Sheffield Theatre Trust | Arts & recreation | 2007 |
| THE Codfather (Barnsley) Limited | Hospitality | 2017 |
| THE Dale (Woodseats) Management Company Limited | Households | 2003 |
| THE Design & Image Works Limited | Professional & scientific | 2005 |
| THE Emperor's New Clothing Company Limited | Professional & scientific | 1990 |
| THE FAT Cat (Sheffield) Limited | Hospitality | 2005 |
| THE Gables (Doncaster) Limited | Hospitality | 1996 |
| THE Harley Hotel Limited | Professional & scientific | 1963 |
| THE Hollteck Company Limited | Manufacturing | 2001 |
| THE Maddocks Consultancy Limited | Health & social care | 2007 |
| THE Montanaro Growth & Income Fund Limited Partnership NO 5 | | 2004 |
| THE Nooking Plumber Limited | Construction | 2006 |
| THE Play Station (Yorkshire) Limited | Professional & scientific | 2005 |
| THE Psalter Foundation | Health & social care | 2004 |
| THE Sheffield and District Law Society Ltd | Professional & scientific | 1875 |
| THE Sheffield Dial-A-Ride Club | Transport & logistics | 2004 |
| THE Terminus Initiative | Other services | 2004 |
| Thornsett Properties Limited | Construction | 1999 |
| Thorntons Accountants Limited | Professional & scientific | 2002 |
| Thorntons Accounting Limited | Professional & scientific | 2004 |
| Thrustle Consulting Limited | Information & communication | 2007 |
| Togel Contractors Limited | Construction | 1985 |
| Tomah Holdings Limited | Professional & scientific | 2003 |
| Tommag (UK) Limited | Health & social care | 2007 |
| Tony Gregory Chiropodist Ltd | Health & social care | 2003 |
| Totally Group Limited | Real estate | 1976 |
| Totley Pharmacy Limited | Health & social care | 2007 |
| Townroe Limited | Professional & scientific | 1947 |
| Trenchline (Civil Engineering) Limited | Wholesale & retail | 1987 |
| Trotman Consulting Limited | Information & communication | 2006 |
| Truflame (Welding Equipment) Limited | Wholesale & retail | 1982 |
| Truswell Property Maintenance Limited | Construction | 2003 |
| Turner Hire & Sales Limited | Wholesale & retail | 1996 |
| Turner's Bakers Limited | Wholesale & retail | 2003 |
| Turret Developments Limited | Extraterritorial | 1997 |
| Turret Hotels Limited | Professional & scientific | 1979 |
| Turret Projects Limited | Professional & scientific | 1996 |
| Turret Property Investments Limited | Real estate | 1982 |
| Twelvetree (Furnishings) Limited | Wholesale & retail | 2001 |
| UK Bullion Limited | Wholesale & retail | 2002 |
| UK Climbing Limited | Information & communication | 2001 |
| Umair Sarwar Limited | Wholesale & retail | 2023 |
| Union Road Management Limited | Households | 2002 |
| United Multicultural Centre | Other services | 1999 |
| Universal Computers Limited | Other services | 2003 |
| Urban I (Blonk Street) Ltd | Construction | 2003 |
| V + K Steel Services Limited | Professional & scientific | 1946 |
| Value Heat Treat Limited | Manufacturing | 2021 |
| Vance Queen Limited | Real estate | 2002 |
| Vanellus Limited | Financial services | 2024 |
| Vertex Engineered Systems Limited | Construction | 2018 |
| Verymuchso Limited | Information & communication | 2002 |
| VHL Fleet Support Ltd | Wholesale & retail | 2008 |
| Virtual Health & Safety Partnership Limited | Extraterritorial | 2007 |
| Visionmix Productions Limited | Information & communication | 2012 |