| Olive-Harvey Child Development Center | 10001 S Woodlawn Ave, Chicago, IL 60628 | Preschool |
| Operation Restoration Dev School Preschool | 8758 S Peoria St, Chicago, IL 60620 | Preschool |
| Orchard Street Christian Church Child Development Center | 2324 Orchard St, Blue Island, IL 60406 | Preschool |
| Orland Park Christian Pre-School | 7500 Sycamore Dr, Orland Park, IL 60462 | Preschool |
| Orland Park Headstart | 7249 Wheeler Dr, Orland Park, IL 60462 | Center |
| Otis P Graves Elementary School Preschool | 6021 S 74th Ave, Summit Argo, IL 60501 | Preschool |
| Otoole Elementary School Preschool | 6550 S Seeley Ave, Chicago, IL 60636 | Preschool |
| Ounce of Prevention Fund-Educare Center | 5044 S Wabash Ave, Chicago, IL 60615 | Preschool |
| Our Lady of Guadalupe Preschool | 9050 S Burley Ave, Chicago, IL 60617 | Preschool |
| Our Lady of The Snows School Preschool | 4810 S Leamington Av, Chicago, IL 60638 | Preschool |
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| Outreach Child Care Center | 15251 Dixie Hwy, Harvey, IL 60426 | Center |
| Outreach Exceptional Learn Academy | 15251 Dixie Hwy, Harvey, IL 60426 | Preschool |
| Overton Elementary School Preschool | 221 E 49th St, Chicago, IL 60615 | Preschool |
| Owens Elementary Community Academy Preschool | 12450 S State St, Chicago, IL 60628 | Preschool |
| Palos Christian Preschool | 7059 W 127th St, Palos Heights, IL 60463 | Preschool |
| Palos Lutheran School Preschool | 12428 S 71st Ct, Palos Heights, IL 60463 | Preschool |
| Palos Park Episcopal Day Care Center | 12219 S 86th Ave, Palos Park, IL 60464 | Center |
| Papoose Children's Center | 5354 W 95th St, Oak Lawn, IL 60453 | Center |
| Parent Cooperative For Early Learning | 5300 S South Shore Dr, Chicago, IL 60615 | Center |
| Park Manor Elementary School Preschool | 7037 S Rhodes Ave, Chicago, IL 60637 | Preschool |
| Parker Elementary Community Academy Preschool | 6800 S Stewart Ave, Chicago, IL 60621 | Preschool |
| Parkman Elementary School Preschool | 245 W 51st St, Chicago, IL 60609 | Preschool |
| Parkside Elementary Community Academy Preschool | 6938 S East End Ave, Chicago, IL 60649 | Preschool |
| Parkway School Age Day Care | 500 E 67th St, Chicago, IL 60637 | Center |
| Pass It On Academy Preschool | 2446-48 W 63rd St, Chicago, IL 60629 | Preschool |
| Pathways To Learning Academy Preschool | 15323 Turlington Ave, Harvey, IL 60426 | Preschool |
| Pathways To Learning Child Care Center | 3438 W 79th St, Chicago, IL 60652 | Center |
| Pathways To Learning Child Care Center | 3450 W 79th St # 54, Chicago, IL 60652 | Center |
| Pathways To Learning Child Care Center | 6535 S Kedzie Ave # 41, Chicago, IL 60629 | Center |
| Pathways To Learning II | 3416 1/2 3418 West 79th Str., Chicago, IL 60652 | Center |
| Paulo Freire Center | 1653 W 43rd St, Chicago, IL 60609 | Center |
| Peaceful Palace Child Care | 919 Summer Street, Hammond, IN 46320 | Center |
| Peaceful Palace Preschool | 3 Russell Street, Hammond, IN 46320 | Preschool |
| Peck Elementary School Preschool | 3826 W 58th St, Chicago, IL 60629 | Preschool |
| Penny Lane School | 4527 Southwest Hwy, Oak Lawn, IL 60453 | Center |
| Penny Lane School | 10255 Ridgeland Ave, Chicago Ridge, IL 60415 | Center |
| Perfect Beginnings Child Development Center | 7815 S Kedzie Ave, Chicago, IL 60652 | Center |
| Peter Pan Early Learning Center | 10301 S Kolmar Ave, Oak Lawn, IL 60453 | Center |
| Pilgrim Faith Preschool | 9411 S 51st Ave, Oak Lawn, IL 60453 | Preschool |
| Pill Hill Development Center | 8802 S Stony Island Ave, Chicago, IL 60617 | Center |
| Pink's Child Care Academy | 8236 S Kedzie Ave, Chicago, IL 60652 | Center |
| Pink's Child Care Academy II | 8000 S Kedzie Ave, Chicago, IL 60652 | Center |
| Pirie Elementary Fine Arts & Academic Center Preschool | 650 E 85th St, Chicago, IL 60619 | Preschool |
| Playhouse Childcare | Po Box 64, Dolton, IL 60419 | Center |
| Pope John Paul II Catholic School Preschool | 4325 S Richmond St, Chicago, IL 60632 | Preschool |
| Powell Elementary Paideia Community Academy Preschool | 7530 S South Shore, Chicago, IL 60649 | Preschool |
| Power Daycare Center | 725 W 123rd St, Chicago, IL 60628 | Center |
| Precious Infants & Tots Learning Center | Po Box 378303, Chicago, IL 60637 | Center |
| Precious Little One's Learning Center | Po Box 378303, Chicago, IL 60637 | Center |
| Precious Ones Development Academy | 11600 S Pulaski Rd, Alsip, IL 60803 | Preschool |
| Prince & Princess Day Center | Po Box 1462, Harvey, IL 60426 | Center |
| Prince & Princess Infant-Toddler Care | Po Box 1462, Harvey, IL 60426 | Center |
| Prodigy Child Learning Center | 1921 E 79th St, Chicago, IL 60649 | Center |
| Professional Playhouse Day Care Center | 338 E 103rd St # 348, Chicago, IL 60628 | Center |
| Promise Christian Academy Preschool | 13560 S Indiana Ave, Riverdale, IL 60827 | Preschool |
| Pullman Elementary School Preschool | 11311 S Forrestville, Chicago, IL 60628 | Preschool |
| Qodesh Educational Institute | 8255 S Kingston Ave, Chicago, IL 60617 | Center |
| Queen of Martyrs Preschool | 3550 W 103rd St, Chicago, IL 60655 | Preschool |
| Queen of The Universe Preschool | 7130 S Hamlin Ave, Chicago, IL 60629 | Preschool |
| Quin School Preschool | 7825 W 103rd St, Palos Hills, IL 60465 | Preschool |
| Randolph Elementary School Preschool | 7316 S Hoyne Ave, Chicago, IL 60636 | Preschool |
| Ray Elementary School Preschool | 5631 S Kimbark Ave, Chicago, IL 60637 | Preschool |
| Reach Christian Academy Preschool | 7400 S Michigan Ave, Chicago, IL 60619 | Preschool |
| Reavis Elementary Math & Science Spec School Preschool | 834 E 50th St, Chicago, IL 60615 | Preschool |
| Redeemer's Preschool | 4955 158th St, Oak Forest, IL 60452 | Preschool |
| Reed Elementary School Preschool | 6350 S Stewart Ave, Chicago, IL 60621 | Preschool |
| Resurrection Lutheran School Preschool | 9349 S Wentworth Ave, Chicago, IL 60620 | Preschool |
| Resurrection Pre-School | 15050 Central Ave, Oak Forest, IL 60452 | Preschool |
| Revere Elementary School Preschool | 1010 E 72nd St, Chicago, IL 60619 | Preschool |
| Rey Gonzalez Children and Family Center | 3050 East 92nd Street, Chicago, IL 60617 | Preschool |
| Ridge Central Elementary School Preschool | 10800 Lyman Ave, Chicago Ridge, IL 60415 | Preschool |
| Ridge Early Childhood Center | 5151 149th St, Oak Forest, IL 60452 | Preschool |
| Ridge Lawn Elementary School Preschool | 5757 105th St, Chicago Ridge, IL 60415 | Preschool |
| Riley Preschool | 16001 Lincoln Ave, Harvey, IL 60426 | Preschool |
| Robbins Pre-School and Daycare | 3518 W 139th St, Robbins, IL 60472 | Preschool |
| Robina Lyle Elementary and Early Childhood | 7801 W 75th St, Bridgeview, IL 60455 | Preschool |
| Robinson Elementary School Preschool | 4225 S Lake Park Ave, Chicago, IL 60653 | Preschool |
| Rockets Before and After | Po Box 1914, Calumet City, IL 60409 | Center |
| Rocking Robin Day Care Center | 6000 W 79th St, Burbank, IL 60459 | Preschool |
| Roseland Child Development Center | 461 E 111th St, Chicago, IL 60628 | Center |
| Roseland Christian School Preschool | 314 W 108th St, Chicago, IL 60628 | Preschool |
| Roseland Learning Center | 10520 S Halsted St, Chicago, IL 60628 | Center |
| Ross Elementary School Preschool | 6059 S Wabash Ave, Chicago, IL 60637 | Preschool |
| Ruggles Elementary School Preschool | 7831 S Prairie Ave, Chicago, IL 60619 | Preschool |
| Ryder Elementary Math & Science Spec School Preschool | 8716 S Wallace St, Chicago, IL 60620 | Preschool |
| Safe Care Academy | 2926 W 147th St, Posen, IL 60469 | Center |
| Safe Haven Child Care Academy | 54 E 138th St, Riverdale, IL 60827 | Center |
| Salem Christian Academy Preschool | 11816 S Indiana Ave, Chicago, IL 60628 | Preschool |
| Salem Lutheran Early Childhood Center | 18328 Ashland Ave, Homewood, IL 60430 | Preschool |
| Sanctuary Child Care Development Center | 4922 S Cicero Ave, Chicago, IL 60638 | Center |
| Sandbox Learning Center | 12832 S Ridgeland Ave, Palos Heights, IL 60463 | Center |
| Sandbox Pre-School & Learning Center | 7845 W 103rd St, Palos Hills, IL 60465 | Center |
| Sanders Academy of Excellence Preschool | 11515 S Prairie Ave, Chicago, IL 60628 | Preschool |
| Schmid Elementary School Preschool | 9755 S Greenwood Ave, Chicago, IL 60628 | Preschool |
| School District 133 Annex Preschool | 150 W 137th St, Riverdale, IL 60827 | Preschool |
| Serendipity Child Care | 1300 W 99th St, Chicago, IL 60643 | Preschool |
| Seward Elementary Communication Arts Academy Preschool | 4600 S Hermitage Ave, Chicago, IL 60609 | Preschool |
| Sexton Elementary School Preschool | 6020 S Langley Ave, Chicago, IL 60637 | Preschool |
| Shelby Scholars Daycare | Po Box 1190, Robbins, IL 60472 | Center |
| Sherman Elementary School Preschool | 1000 W 52nd St, Chicago, IL 60609 | Preschool |