| Business | Phone |
| Campus Kids 1102 W Phillips St, Ontario 91762 | (909) 986-5400 |
| Champions 2840 S Parco Ave, Ontario 91761 | (909) 673-9551 |
| Chelsea's Home Preschool 1034 N San Antonio Ave, Ontario 91762 | (909) 391-3564 |
| Community Day Care Carol's 10795 Ada Ave, Ontario 91762 | (951) 529-0509 |
| Coopers Family Day Care 2926 E Firecrest Ct, Ontario 91761 | (909) 930-1120 |
| Dulaney Family Day Care Fclty Ontario 91761 | (909) 930-1064 |
| Guillory's Golden Rule 2941 S Cedar Ridge Pl, Ontario 91761 | (909) 947-5589 |
| Heart & Hand Child Care 827 W Harvard Pl, Ontario 91762 | (909) 984-5574 |
| Kids First Learning Center 2049 E Riverside Dr, Ontario 91761 | (909) 930-5459 |
| Kinder Care Learning Center 2140 S Euclid Ave, Ontario 91762 | (909) 983-5007 |
| Lighthouse Christian Preschool 1456 N Grove Ave, Ontario 91764 | (909) 984-5959 |
| Lil Blessings Christian Family 1627 N Lake Ave, Ontario 91764 | (909) 946-4290 |
| Mommy's Day Care 2841 Surrey Way, Ontario 91761 | (909) 673-9850 |
| Nanny Plus 1512 E 5th St # 210, Ontario 91764 | (909) 983-3475 |
| Negrete Family Child Care 1714 E Cherry Hill St, Ontario 91761 | (909) 947-0365 |
| Nicholson Child Care 2432 Blackpine Pl, Ontario 91761 | (909) 923-9536 |
| Ontario-Montclair Ymca Child 950 N Elderberry Ave, Ontario 91762 | (909) 986-0048 |
| Prince Of Peace Lutheran Day 1415 W 5th St, Ontario 91762 | (909) 984-1453 |
| Wee Care Learning Center 3876 Lytle Creek Loop, Ontario 91761 | (909) 923-5407 |
| West End Ymca 835 N Center Ave, Ontario 91764 | (909) 483-0275 |
| Ymca 1140 N Corona Ave, Ontario 91764 | (909) 986-6634 |
| You Are Special Child Care 1464 E 5th St, Ontario 91764 | (909) 988-8369 |