| Business | Phone |
| Cambridge Education Center 9200 State Route 108, Columbia 21045 | (410) 992-9400 |
| Ed Matrix Resources Inc Columbia 21044 | (410) 730-7939 |
| Goldes Enterprises 6552 Quiet Hours, Columbia 21045 | (410) 290-9176 |
| Huntington Learning Ctr 8890 Centre Park Dr # 200, Columbia 21045 | (410) 740-5577 |
| Kumon Math & Reading 6935 Oakland Mills Rd, Columbia 21045 | (410) 290-5894 |
| Kumon Usa Inc 5570 Sterrett Pl, Columbia 21044 | (410) 997-2617 |
| Sylvan Learning Ctr 5570 Sterrett Pl # 100, Columbia 21044 | (410) 740-8331 |