| Business | Phone |
| Area Wide Market Research 12 Brighton Dr, Gaithersburg 20877 | (301) 948-1920 |
| Area Wide Market Research 16017 Comprint Cir, Gaithersburg 20877 | (301) 590-1160 |
| Sonneville Associates 314 Wye Mill Ct, Gaithersburg 20879 | (301) 869-4460 |
| Research Services 20 E Diamond Ave, Gaithersburg 20877 | (301) 330-2083 |