| 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 |
| Oakton Comm Coll Early Care & Ed Center | 7701 Lincoln Ave, Skokie, IL 60077 | Center |
| 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 |
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| 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 |
| 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 |
| Our Lady Immaculate Academy Preschool | 410 Washington Blvd, Oak Park, IL 60302 | 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 Perpetual Help Preschool | 1123 Church St, Glenview, IL 60025 | 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 Victory Preschool | 4434 N Laramie Ave, Chicago, IL 60630 | Preschool |
| Our Saviour Preschool | 7151 W Cornelia Ave, Chicago, IL 60634 | Preschool |
| Paderewski Elementary Learning Academy Preschool | 2221 S Lawndale Ave, Chicago, IL 60623 | Preschool |
| Palmer Elementary School Preschool | 5051 N Kenneth Ave, Chicago, IL 60630 | Preschool |
| Panda Montessori Academy | 6921 N Ridge Blvd, Chicago, IL 60645 | Center |
| Parent Day Out | 1420 Maple Ave, Evanston, IL 60201 | Center |
| Park School Preschool | 828 Main St, Evanston, IL 60202 | Preschool |
| Park View Elementary School Preschool | 6200 Lake St, Morton Grove, IL 60053 | Preschool |
| Park View Lutheran School Preschool | 3919 N Monticello Av, Chicago, IL 60618 | Preschool |
| Park View Montessori School III | 640 W Irving Park Rd, Chicago, IL 60613 | Preschool |
| Park West Cooperative Nursery School | 2335 N Orchard St, Chicago, IL 60614 | Preschool |
| Passages Elementary Charter School Preschool | 1643 W Bryn Mawr Ave, Chicago, IL 60660 | Preschool |
| Peabody Elementary School Preschool | 1444 W Augusta Blvd, Chicago, IL 60642 | Preschool |
| Peace Infant and Toddler Center | 6242 N CLARK ST, Chicago, IL 60660 | Center |
| Peachtree Nursery and Learning Center | Po Box 23020, Chicago, IL 60623 | Center |
| Pedia Learning Center - Luv "N" Care | 5776 N Lincoln Ave # 78, Chicago, IL 60659 | Center |
| Pegasus Children's Center | 7321 N Kildare Ave, Lincolnwood, IL 60712 | Center |
| Peirce Elementary International Studies School Preschool | 1423 W Bryn Mawr Ave, Chicago, IL 60660 | Preschool |
| Penn Elementary School Preschool | 1616 S Avers Ave, Chicago, IL 60623 | Preschool |
| Pennoyer Elementary School Preschool | 5200 N Cumberland, Harwood Heights, IL 60706 | Preschool |
| Perez Elementary School Preschool | 1241 W 19th St, Chicago, IL 60608 | Preschool |
| Pershing Elementary Humanities Magnet Preschool | 3113 S Rhodes Ave, Chicago, IL 60616 | Preschool |
| Peterson Elementary School Preschool | 5510 N Christiana Av, Chicago, IL 60625 | Preschool |
| Piccolo Elementary Specialty School Preschool | 1040 N Keeler Ave, Chicago, IL 60651 | Preschool |
| Pickard Elementary School Preschool | 2301 W 21st Pl, Chicago, IL 60608 | Preschool |
| Picket Fence Day Care & Learning Center | 36 W Conti Pkwy, Elmwood Park, IL 60707 | Center |
| Pilgrim Community Nursery School | 460 Lake St, Oak Park, IL 60302 | Center |
| Pilgrim Lutheran School Preschool | 4300 N Winchester Av, Chicago, IL 60613 | Preschool |
| Pilsen Elementary Community Academy Preschool | 1420 W 17th St, Chicago, IL 60608 | Preschool |
| Pinocchio Child Care | 5932 W Gunnison St, Chicago, IL 60630 | Center |
| Pleasant Ridge Elementary School Preschool | 1730 Sunset Ridge Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Day Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Infant / Toddler Center | 320 Waukegan Rd, Glenview, IL 60025 | Center |
| Poko Loko Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Pope John XXIII School Preschool | 1120 Washington St, Evanston, IL 60202 | Preschool |
| Portage Park Elementary School Preschool | 5330 W Berteau Ave, Chicago, IL 60641 | Preschool |
| Positive Attitudes Working Daycare Preschool | 112 Chicago Ave, Oak Park, IL 60302 | Center |
| Prescott Elementary School Preschool | 1632 W Wrightwood Av, Chicago, IL 60614 | Preschool |
| Prieto Math-Science Elementary School Preschool | 2231 N Central Ave, Chicago, IL 60639 | Preschool |
| Prince of Peace Child Development Center | 1210 N Waller Ave, Chicago, IL 60651 | Center |
| Pritzker Elementary School Preschool | 2009 W Schiller St, Chicago, IL 60622 | Preschool |
| Project Lead | 1512 S Pulaski Rd, Chicago, IL 60623 | Center |
| Prussing Elementary School Preschool | 4650 N Menard Ave, Chicago, IL 60630 | Preschool |
| Puerta Abierta Preschool | 9023 Lincolnwood Dr, Evanston, IL 60203 | Preschool |
| Pui Tak Christian School | 2301 S Wentworth Ave, Chicago, IL 60616 | Preschool |
| Pui Tak Christian School Preschool | 2301 S Wentworth Ave, Chicago, IL 60616 | Preschool |
| Pulaski Elementary Fine Arts Academy Preschool | 2230 W Mclean Ave, Chicago, IL 60647 | Preschool |
| Queen of All Saints School Preschool | 6230 N Lemont Ave, Chicago, IL 60646 | Preschool |
| Queen of Angels School Preschool | 4520 N Western Ave, Chicago, IL 60625 | Preschool |
| RFCC at Oak Park River Forest High School | 201 N Scoville Ave, Oak Park, IL 60302 | Center |
| Rainbow Day Care | 3250 W Irving Park Rd, Chicago, IL 60618 | Center |
| Rainforest Learning Center | 1325 S State St, Chicago, IL 60605 | Preschool |
| Ram Little Lambs Learning Center | 3339 W Chicago Ave # 41, Chicago, IL 60651 | Center |
| Rauner YMCA | 2700 S Western Ave, Chicago, IL 60608 | Preschool |
| Ravenswood Community Child Care Center | 4900 N Damen Ave, Chicago, IL 60625 | Preschool |
| Ravenswood Elementary School Preschool | 4332 N Paulina St, Chicago, IL 60613 | Preschool |
| Ravenswood Manor Child Care Center | 2756 W Montrose Ave # 58, Chicago, IL 60618 | Center |
| Reaching Out Career Academy Preschool | 1950 S Saint Louis A, Chicago, IL 60623 | Preschool |
| Reba Early Learning Center | 740 Custer Ave, Evanston, IL 60202 | Center |
| Rebecca K. Crown Child Development Center | 104 S Michigan Ave Fl 14, Chicago, IL 60603 | Center |
| Reilly Elementary School Preschool | 3650 W School St, Chicago, IL 60618 | Preschool |
| Reinberg Elementary School Preschool | 3425 N Major Ave, Chicago, IL 60634 | Preschool |
| Resurrection Pre-School and After School | 3309 N Seminary Ave, Chicago, IL 60657 | Preschool |
| Rhodes Elementary School Preschool | 8931 Fullerton Ave, River Grove, IL 60171 | Preschool |
| Rogers Elementary School Preschool | 7345 N Washtenaw Ave, Chicago, IL 60645 | Preschool |
| Rogers Park Montessori School | 1800 W Balmoral Ave, Chicago, IL 60640 | Preschool |
| Rogers Park Montessori School Preschool | 1800 W Balmoral Ave, Chicago, IL 60640 | Preschool |
| Romona Elementary School Preschool | 600 Romona Rd, Wilmette, IL 60091 | Preschool |
| Ronald Knox Montessori School | 2031 Elmwood Ave, Wilmette, IL 60091 | Center |
| Room2play | 2255 S Michigan Ave Apt 1w, Chicago, IL 60616 | Center |
| Rose Hall Montessori School | 1140 Wilmette Ave, Wilmette, IL 60091 | Center |
| Rose K Goedert Early Childhood Edu Center | 7200 Division St, River Forest, IL 60305 | Center |
| Roycemore School Preschool | 640 Lincoln St, Evanston, IL 60201 | Preschool |
| Rudolph Elementary Learning Center | 110 N Paulina St, Chicago, IL 60612 | Preschool |
| Ruiz Elementary School Preschool | 2410 S Leavitt St, Chicago, IL 60608 | Preschool |
| Ryerson Elementary School Preschool | 646 N Lawndale Ave, Chicago, IL 60624 | Preschool |
| Saint Chrysostom's Day School | 1424 N Dearborn St, Chicago, IL 60610 | Preschool |