| Class | Class Name |
|---|---|
| 40 | upcycling [waste recycling] |
| 40 | vulcanization [material treatment] |
| 40 | wafer fabrication for others |
| 40 | warping [looms] |
| 40 | waste crushing |
| 40 | waste destruction services |
| 40 | waste management information |
| 40 | waste management services |
| 40 | waste processing |
| 40 | waste treatment [transformation] |
| 40 | waste water treatment services |
| 40 | water purification services |
| 40 | water treating |
| 40 | water treatment and purification |
| 40 | water treatment (demineralising) services |
| 40 | water treatment for energy generating operations |
| 40 | water treatment services |
| 40 | welding of metals |
| 40 | welding services |
| 40 | window tinting treatment being surface coating |
| 40 | wine making for others |
| 40 | woodworking |
| 40 | woodworking |
| 40 | wool treating |