| ACLS | Axcelis |
| AEHR | Aehr Test Systems |
| ASYS | Amtech Systems |
| AXTI | AXT |
| COHU | Cohu |
| ENTG | Entegris |
| ICHR | Ichor |
| IPGP | IPG Photonics |
| KLAC | KLA |
| KLIC | Kulicke and Soffa Industries |
| LRCX | Lam Research |
| NVMI | Nova |
| ONTO | Onto Innovation |
| UCTT | Ultra Clean |
| VECO | Veeco Instruments |