| Monroe Elementary School Preschool | 3651 W Schubert Ave, Chicago, IL 60647 | Preschool |
| Monroe Elementary School Preschool | 210 N Madison St, Hinsdale, IL 60521 | Preschool |
| Montessori Academy & Association | 11019 S Halsted St # 25, Chicago, IL 60628 | Center |
| Montessori Academy of Chicago | 1335 W Randolph St, Chicago, IL 60607 | Center |
| Montessori Childrens Academy | 706 E Park Blvd, Villa Park, IL 60181 | Preschool |
| Montessori Childrens Community | 3424 Maple Ave, Brookfield, IL 60513 | Preschool |
| Montessori Dela Citta | 1501 W Fullerton Ave, Chicago, IL 60614 | Preschool |
| Montessori Language Academy Preschool | 314 Circle Ave, Forest Park, IL 60130 | Preschool |
| Montessori Learning Center of Edison Park | 6740 N Oliphant Ave, Chicago, IL 60631 | Preschool |
| Montessori School of Western Springs Preschool | 1500 Walker St, Western Springs, IL 60558 | Preschool |
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| Moos Elementary School Preschool | 1711 N California Av, Chicago, IL 60647 | Preschool |
| Morningside Montessori Academy | 1192 S Cuyler Ave, Oak Park, IL 60304 | Preschool |
| Morrill Elementary Math & Science School Preschool | 6011 S Rockwell St, Chicago, IL 60629 | Preschool |
| Morton College Child Learning Center | 3801 S Central Ave, Cicero, IL 60804 | Center |
| Morton Elementary Career Academy Preschool | 431 N Troy St, Chicago, IL 60612 | Preschool |
| Mosaic Early Childhood Academy | 5334 W Addison St, Chicago, IL 60641 | Preschool |
| Mosaic Montessori Academy Preschool | 7970 Lake St, River Forest, IL 60305 | Preschool |
| Mother Goose Day Care Center | 1809 S Wolf Rd, Hillside, IL 60162 | Center |
| Mother's Touch Day Care | 2501 W 71st St, Chicago, IL 60629 | Preschool |
| Mount Carmel Academy Preschool | 720 W Belmont Ave, Chicago, IL 60657 | Preschool |
| Mozart Elementary School Preschool | 2200 N Hamlin Ave, Chicago, IL 60647 | Preschool |
| Mt. Ararat Daycare Center | 7208 W Summerdale Ave, Chicago, IL 60656 | Center |
| Murphy Elementary School Preschool | 3539 W Grace St, Chicago, IL 60618 | Preschool |
| My Corner Playroom | 2121 N Clybourn Ave, Chicago, IL 60614 | Preschool |
| My Precious Little Angels | 7012 W North Ave, Elmwood Park, IL 60707 | Center |
| Nash Elementary School Preschool | 4837 W Erie St, Chicago, IL 60644 | Preschool |
| National Teachers Elementary Academy Preschool | 55 W Cermak Rd, Chicago, IL 60616 | Preschool |
| Near North Montessori School | 1434 W Division St, Chicago, IL 60642 | Preschool |
| Near North Montessori School Preschool | 1434 W Division St, Chicago, IL 60642 | Preschool |
| Near South Side Child Dev Center | 2214 S Federal St, Chicago, IL 60616 | Preschool |
| Near The Pier Development Center | 540 N Lake Shore Dr, Chicago, IL 60611 | Center |
| Nettelhorst Elementary School Preschool | 3252 N Broadway St, Chicago, IL 60657 | Preschool |
| New Beginning Day Care | Po Box 440232, Chicago, IL 60644 | Center |
| New City Day Care | 1000 W 51st St, Chicago, IL 60609 | Center |
| New Day College Preparatory Preschool | 5038 W Madison St, Chicago, IL 60644 | Preschool |
| New Horizon Childcare | 854 N Central Ave, Chicago, IL 60651 | Center |
| New Horizon Organization | 5303 W Chicago Ave, Chicago, IL 60651 | Center |
| New Life Community Zone School Preschool | 3540 W Cermak Rd, Chicago, IL 60623 | Preschool |
| New Zion Child Care Academy | 1252 S Wolcott Ave, Chicago, IL 60608 | Center |
| Nia Family Center | 744 N Monticello Ave, Chicago, IL 60624 | Center |
| Nicholson Elementary Math & Science | 6006 S Peoria St, Chicago, IL 60621 | Preschool |
| Nightingale Elementary School Preschool | 5250 S Rockwell St, Chicago, IL 60632 | Preschool |
| Nixon Elementary School Preschool | 2121 N Keeler Ave, Chicago, IL 60639 | Preschool |
| Nobel Elementary School Preschool | 4127 W Hirsch St, Chicago, IL 60651 | Preschool |
| Norridge Park District ECPA Preschool | 8151 W Lawrence Ave, Harwood Heights, IL 60706 | Preschool |
| Norridge Park District Preschool & Daycare Center | 8151 W Lawrence Ave, Harwood Heights, IL 60706 | Preschool |
| North Avenue Day Nursery | 2001 W Pierce Ave, Chicago, IL 60622 | Preschool |
| North Kenwood Day Care Center | 516 E 43rd St # 518, Chicago, IL 60653 | Center |
| North Lawndale YMCA | 3449 W Arthington St, Chicago, IL 60624 | Center |
| North Park Church Preschool | 5250 N Christiana Ave, Chicago, IL 60625 | Preschool |
| North River Elementary School Preschool | 4416 N Troy St, Chicago, IL 60625 | Preschool |
| North Shore Sda Junior Academy Preschool | 5220 N California Av, Chicago, IL 60625 | Preschool |
| Northeastern Illinois University Child Care | 5500 N Saint Louis Ave, Chicago, IL 60625 | Center |
| Northern Trust Kids Kamp | 50 S Lasalle C1s, Chicago, IL 60675 | Center |
| Northside Catholic Academy Preschool | 5525 N Magnolia Ave, Chicago, IL 60640 | Preschool |
| Northside Catholic Academy Preschool | 6216 N Glenwood Ave, Chicago, IL 60660 | Preschool |
| Northwest Institute For Contemp Academy Preschool | 5108 W Division St, Chicago, IL 60651 | Preschool |
| Northwest Institute For Contemporary Learning | 4040 W Division St, Chicago, IL 60651 | Center |
| Northwestern University Settlement Association | 1400 W Augusta Blvd, Chicago, IL 60642 | Center |
| Norwood Park Elementary School Preschool | 5900 N Nina Ave, Chicago, IL 60631 | Preschool |
| Oak Park Friends Academy | 1192 S CUYLER AVE, Oak Park, IL 60304 | Center |
| Oak Park Montessori School Preschool | 937 Garfield St, Oak Park, IL 60304 | Preschool |
| Oak Park and River Forest Day Nursery | 1139 Randolph St, Oak Park, IL 60302 | Center |
| Oak Tree Pre School | 9220 Broadway Ave, Brookfield, IL 60513 | Preschool |
| Oak Tree Preschool | 9219 Broadway Ave Ste B, Brookfield, IL 60513 | Preschool |
| Oakbrook KinderCare - CLOSED | 1111 Pasquinelli Dr. #300, Westmont, IL 60559 | Preschool |
| Oakton Comm Coll Early Care & Ed Center | 7701 Lincoln Ave, Skokie, IL 60077 | Center |
| Ogden Ave Elementary School Preschool | 501 W Ogden Ave, La Grange, IL 60525 | Preschool |
| Old St Marys School Preschool | 1532 S Michigan Ave, Chicago, IL 60605 | Preschool |
| Oliver W Holmes Elementary School Preschool | 508 N Kenilworth Ave, Oak Park, IL 60302 | Preschool |
| Onahan Elementary School Preschool | 6634 W Raven St, Chicago, IL 60631 | Preschool |
| Onward Neighborhood House | 600 N Leavitt St, Chicago, IL 60612 | Preschool |
| Onward Neighborhood House Day Care Programs | 600 N Leavitt St, Chicago, IL 60612 | Center |
| Open Space Early Learning Center | 4846 N Clark St, Ste 200, Chicago, IL 60640 | Center |
| Orchard Place Elementary School Preschool | 2727 Maple St, Des Plaines, IL 60018 | Preschool |
| Oriole Park Elementary School Preschool | 5424 N Oketo Ave, Chicago, IL 60656 | Preschool |
| Orr Infant and Family Development | 730 N. Pulaski Rd., Chicago, IL 60606 | Center |
| Ortiz De Dominguez Elementary School Preschool | 3000 S Lawndale Ave, Chicago, IL 60623 | Preschool |
| Otis Elementary School Preschool | 525 N Armour St, Chicago, IL 60642 | Preschool |
| 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 Immaculate Academy Preschool | 410 Washington Blvd, Oak Park, IL 60302 | Preschool |
| Our Lady of Charity Preschool | 3620 S 57th Ct, Cicero, IL 60804 | Preschool |
| Our Lady of Grace School Preschool | 2446 N Ridgeway Ave, Chicago, IL 60647 | Preschool |
| Our Lady of Lourdes Head Start | 1449 S Keeler Ave, Chicago, IL 60623 | Preschool |
| Our Lady of Lourdes Preschool | 4641 N Ashland Ave, Chicago, IL 60640 | Preschool |
| Our Lady of Tepeyac Head Start | 2414 S Albany Ave, Chicago, IL 60623 | Preschool |
| Our Lady of Tepeyac Preschool | 2235 S Albany Ave, Chicago, IL 60623 | Preschool |
| Our Lady of The Snows School Preschool | 4810 S Leamington Av, Chicago, IL 60638 | Preschool |
| Our Lady of Victory Preschool | 4434 N Laramie Ave, Chicago, IL 60630 | Preschool |
| Our Saviour Preschool | 7151 W Cornelia Ave, Chicago, IL 60634 | Preschool |
| PLCCA Ceda Head Start | Po Box 950, Maywood, IL 60153 | Preschool |
| PLCCA Debra Ann Porter 24/7 Childcare | Po Box 950, Maywood, IL 60153 | Center |
| PLCCA Proviso-Leyden Council | Po Box 950, Maywood, IL 60153 | Center |
| Paderewski Elementary Learning Academy Preschool | 2221 S Lawndale Ave, Chicago, IL 60623 | Preschool |
| Paec Education Center Preschool | 1636 S 10th Ave, Maywood, IL 60153 | Preschool |
| Palmer Elementary School Preschool | 5051 N Kenneth Ave, Chicago, IL 60630 | Preschool |
| Parent-Child Program of Hinsdale United Methodist | 945 S Garfield St, Hinsdale, IL 60522 | Preschool |
| Park View Lutheran School Preschool | 3919 N Monticello Av, Chicago, IL 60618 | Preschool |