| Business | Phone |
| Back To Basics Tutoring Svc 23 E Church St, Frederick 21701 | (301) 695-5322 |
| Huntington Learning Ctr 1039 W Patrick St, Frederick 21702 | (301) 698-1515 |
| Jpl Tutoring & Editorial Svc 213 W Patrick St, Frederick 21701 | (301) 620-7717 |
| Learning Rx Frederick 21701 | (301) 662-6920 |
| Sylvan Learning Ctr 69 Thomas Johnson Dr, Frederick 21702 | (301) 662-2727 |