Gears & Gear Cutting (Manufacturers) in Sheffield, South Yorkshire
| Name & Address | Phone # | Website |
| Derwent Tool Co Ltd 1 Wallace Road, Sheffield, South Yorkshire S3 9SR | 0114-275 4829 |  |
| J B Engineering Unit 1a/Carlisle House, Sheffield, South Yorkshire S4 7QN | 0114-273 9984 | |
| Pentag Power Transmissions Ltd PO Box 24, Sheffield, South Yorkshire S2 4EF | 0114-273 8651 |  |
| Bell Gearbox Refurbishment Frestan Works, Sheffield, South Yorkshire S4 7SE | 0114-243 5067 | |
| Bell Gears Ltd Frestan Works, Sheffield, South Yorkshire S4 7SE | 0114-243 1938 | |
| Evo Engineering 130 Chippingham Street, Sheffield, South Yorkshire S9 3SE | 0114-243 1267 | |
| Overdrive Repair Services Ellisons Road, Sheffield, South Yorkshire S21 2JG | 0114-248 2632 | |
| Sheffield Transmission Developments Highfield Lane, Sheffield, South Yorkshire S13 9NA | 0114-288 9440 | |
| T D R Transmission Ltd Transmission House, Sheffield, South Yorkshire S3 8RB | 0114-273 8997 | |
| T D R Transmissions Ltd 5 Hunsley Street, Sheffield, South Yorkshire S4 8DY | 0114-262 6050 | |
