| Business | Phone |
| Westminster Financial Security Gaithersburg 20877 | (301) 926-7710 |
| Charles Schwab & Co 555 Quince Orchard Rd, Gaithersburg 20878 | (301) 947-1100 |
| Edward Jones Co 19110 Montgomery Vlg Ave # 310, Gaithersburg 20886 | (301) 258-0876 |
| Newby & Co 555 Quince Orchard Rd, Gaithersburg 20878 | (301) 987-0119 |
| Legg Mason Wood Walker Inc 18310 Montgomery Vlg Ave # 740, Gaithersburg 20879 | (301) 840-0890 |