| Business | Phone |
| Transgenomic Inc 11 Firstfield Rd # E, Gaithersburg 20878 | (240) 631-2001 |
| Elmeco Engineering 7838 Beechcraft Ave, Gaithersburg 20879 | (301) 208-0445 |
| Nidatech Inc 6409 Brass Bucket Ct, Gaithersburg 20882 | (301) 208-0998 |
| Gts Scientific Inc 413 E Diamond Ave # B, Gaithersburg 20877 | (301) 929-1444 |