| Business | Phone |
| Aoac Intl 481 N Frederick Ave # 500, Gaithersburg 20877 | (301) 924-7077 |
| Scientific Solutions 4615 Sundown Rd, Gaithersburg 20882 | (301) 570-2811 |
| Clonexpress 504 E Diamond Ave # G, Gaithersburg 20877 | (301) 869-0840 |
| Proxemy Research Inc 20528 Farcroft Ln, Gaithersburg 20882 | (301) 869-0838 |
| Mtr Scientific 19212 Orbit Dr, Gaithersburg 20879 | (301) 831-1377 |