| St Clair | George E. St Clair |
| Stables | Maurice Stables Ltd |
| Stacey | Ebenezer Stacey & Sons |
| Stacey | George Stacey |
| Stacey | Henry V. Stacey |
| Stacey | Jackson, Stacey & Smith |
| Stacey | John Stacey |
| Stacey | Stacey & Bourne |
| Stacey | Stacey Brothers |
| Stacey | Stacey Brothers & Company |
| Stacey | Stacey, Henry & Horton |
| Stacey | Stacey, Pease & Company |
| Stafford | John Stafford |
| Stainless | British Stainless Products Ltd |
| Stainless | Sheffield Stainless Cutlery Co Ltd |
| Stainless | The Stainless |
| Stainless | The Stainless & Rustless Steel Company Ltd |
| Stainless | The Stainless Cutlery Co Ltd |
| Staley | Maw & Staley |
| Stamford | Joseph Stamford & Company |
| Standard | Standard Cutlery Co |
| Standex | Standex |
| Standfield | Standfield, Newbould & Baildon |
| Staniforth | Arthur Worrall Staniforth |
| Staniforth | Bierton & Staniforth |
| Staniforth | Charles Staniforth |
| Staniforth | George Staniforth |
| Staniforth | John Walter Staniforth & Company |
| Staniforth | Roberts & Staniforth |
| Staniforth | Samuel Staniforth Ltd |
| Staniforth | Staniforth, Parkin & Company |
| Staniforth | Thomas Staniforth |
| Staniforth | Thomas Staniforth |
| Staniforth | William Thomas Staniforth |
| Staniland | Gregory & Staniland |
| Staniland | John Staniland |
| Staniland | Richard Staniland |
| Staniland | Wainwright & Staniland |
| Stanley | Stanley, Lister & Kay |
| Stanley | The Stanley Works (Great Britain) Ltd |
| Stansfield | Stansfield Brothers |
| Staton | Staton & Ellis |
| Stead | John Stead & Company Ltd |
| Stead | Richard Stead & Son |
| Steelcrafts | Silver & Steelcrafts Ltd |
| Steele | Moorhouse, Rushworth & Steele |
| Steer | Steer & Webster |
| Stenton | William Stenton & Son / R. S. Stenton |
| Stephenson | John Stephenson (Cutlers) Ltd |
| Stephenson | Stephenson & Wilson Ltd |
| Sternberger | Sternberger & Schwab |
| Stevenson | Job Stevenson / Stevenson & Law |
| Stevenson | Leonard R. Stevenson Ltd |
| Stevenson | R. Stevenson & Co |
| Stirling | Thomas Stirling & Company |
| Stokes | Charles Stokes & Son |
| Stokes | Jukes Coulson & Company / Jukes Coulson, Stokes & Company |
| Stokes | Stokes, Ayres & Co |
| Stone | Miles Stone & Co |
| Stones | Frederick Stones |
| Stones | Thomas Stones & Company |
| Stones | W. Stones & Son |
| Stork | Samuel Stork & Sons |
| Storr | Parsisson & Storr |
| Stovin | John Stovin |
| Stratford | Henry Stratford Ltd |
| Stratford | William Stratford |
| Stringer | Joseph Stringer & Sons |
| Stringer | S. & G. Stringer |
| Styring | Charles Styring & Son |
| Styring | Styring & Hadfield |
