| Business | Phone |
| Castle Rock Fun Club 2975 Castle Rock Rd, Diamond Bar 91765 | (909) 594-0593 |
| Dbc Children's Center 2335 S Diamond Bar Blvd, Diamond Bar 91765 | (909) 861-6230 |
| Village Montessori Academy 23431 Golden Springs Dr, Diamond Bar 91765 | (909) 860-4001 |
| Montesori School-Diamond Bar 3201 S Brea Canyon Rd, Diamond Bar 91765 | (909) 444-4649 |