| Business | Phone |
| Care Facilities Corp 9607 Doctor Perry Rd, Ijamsville 21754 | (301) 831-8978 |
| Ebenezer United Methdosit Chr 9715 Spencer Ln, Ijamsville 21754 | (301) 874-0720 |
| Ebinezer United Methodist Chr 9715 Spencer Ln, Ijamsville 21754 | (301) 874-0720 |
| Mmr & Assoc 11024 Nicholas Pl, Ijamsville 21754 | (301) 865-0604 |
| National Inlet Protection 3348 Big Woods Rd, Ijamsville 21754 | (301) 831-9100 |
| Polysonics Corp 9639 Doctor Perry Rd, Ijamsville 21754 | (301) 874-2600 |
| Province Crossing Llc 4745 Mussetter Rd, Ijamsville 21754 | (301) 865-5800 |
| Qualtech 5201 Mussetter Rd # C, Ijamsville 21754 | (301) 662-1161 |
| Skyline Inc 10088 Tyler Pl, Ijamsville 21754 | (301) 831-8610 |
| Tappan Assoc Inc Ijamsville 21754 | (301) 831-8677 |
| Urbana Field 9229 Fingerboard Rd, Ijamsville 21754 | (301) 874-6066 |