| Business | Phone |
| Applied Materials Inc 1997 State Route 52, Hopewell Jct 12533 | (845) 227-5000 |
| Hynix Semiconductor America 1989 State Route 52 # 1, Hopewell Jct 12533 | (845) 896-0353 |
| Kla-Tencor Corp 20 Corporate Park Dr # C, Hopewell Jct 12533 | (845) 896-0866 |
| Novellus Systems Inc 25 Corporate Park Dr # B, Hopewell Jct 12533 | (845) 896-5591 |
| Philips Semiconductors 1580 State Route 52, Hopewell Jct 12533 | (845) 894-2384 |