| Business | Phone |
| American Art Therapy Assn 1202 Allanson Rd, Mundelein 60060 | (847) 949-6064 |
| Sylvan Lake Improvement Assn 21081 W Sylvan Dr N, Mundelein 60060 | (847) 837-8782 |
| Mundelein Mainstreet 16 E Park St, Mundelein 60060 | (847) 970-9235 |
| Loch Lomond Property Owners 1113 N Midlothian Rd, Mundelein 60060 | (847) 949-1579 |