| Business | Phone |
| Hitachi America Ltd 1399 New York Ave Nw # 250, Washington 20005 | (202) 638-3999 |
| Komatsu Semiconductor Usa 1625 K St Nw # 902a, Washington 20006 | (202) 756-1370 |
| Texas Instruments Inc 1455 Pennsylvania Ave Nw # 375, Washington 20004 | (202) 628-3133 |