| Business | Phone |
| K H Kim's Tae Kwon Do Inst 3141 Dundee Rd, Northbrook 60062 | (847) 480-9222 |
| North Shore Racquet Club 2860 Old Willow Rd, Northbrook 60062 | (847) 729-0450 |
| Northbrook Gymnastics Training 1845 Raymond Dr, Northbrook 60062 | (847) 564-3420 |
| Oatc 3141 Dundee Rd, Northbrook 60062 | (847) 480-9224 |