| Business | Phone |
| Patel P C 45860 Mourning Dove Ct, Great Mills 20634 | (301) 737-3257 |
| Sheetz Inc 20760 Old Great Mills Rd, Great Mills 20634 | (301) 994-9130 |
| Choice Program 45545 Coronado Dr, Great Mills 20634 | (301) 737-1461 |
| D H Little Corp 22451 Chancellors Run Rd, Great Mills 20634 | (301) 863-8081 |