| School Readiness Center Preschool | 430 S River Rd, Naperville, IL 60540 | Preschool |
| Scott Elementary School Preschool | 2250 Scott St, Melrose Park, IL 60164 | Preschool |
| Seton Little Peoples Montessori | 5728 Virginia Ave, Clarendon Hills, IL 60514 | Preschool |
| Seton Montessori School | 5728 Virginia Ave, Clarendon Hills, IL 60514 | Preschool |
| Seton Montessori School Site 2 | 5728 Virginia Ave, Clarendon Hills, IL 60514 | Preschool |
| Simba Child Care Center | 176 W Irwing Park, Wood Dale, IL 60191 | Center |
| Sky Blue Scholars | 1141 Catherine Ave, Naperville, IL 60540 | Center |
| Spring Trail Elementary School Preschool | 1384 Spring Valley, Carol Stream, IL 60188 | Preschool |
| St Domitilla School Preschool | 605 N Hillside Ave, Hillside, IL 60162 | Preschool |
| St Irene School Preschool | 3s601 Warren Ave, Warrenville, IL 60555 | Preschool |
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| St Isidore School Preschool | 431 W Army Trail Rd, Bloomingdale, IL 60108 | Preschool |
| St Joan of Arc Preschool | 4913 Columbia Ave, Lisle, IL 60532 | Preschool |
| St John Lutheran Preschool | 220 S Lincoln Ave, Lombard, IL 60148 | Preschool |
| St John Lutheran School | 125 E Seminary Ave, Wheaton, IL 60187 | Preschool |
| St John The Baptist Preschool | 0s259 Church, Winfield, IL 60190 | Preschool |
| St John Vianney School Preschool | 27 N Lavergne Ave, Melrose Park, IL 60164 | Preschool |
| St John of The Cross Preschool | 708 51st St, Western Springs, IL 60558 | Preschool |
| St Mary Preschool | 147 Garden St, West Chicago, IL 60185 | Preschool |
| St Mary of Gostyn School Preschool | 440 Prairie Ave, Downers Grove, IL 60515 | Preschool |
| St Matthew School Preschool | 1555 Glen Ellyn Rd, Glendale Heights, IL 60139 | Preschool |
| St Michael Preschool | 314 W Willow Ave, Wheaton, IL 60187 | Preschool |
| St Paul Christian Day Care Center | 545 S Ardmore Ave, Villa Park, IL 60181 | Center |
| St Peter The Apostle School Preschool | 500 N Cherry St, Itasca, IL 60143 | Preschool |
| St Philip The Apostle School Preschool | 1233 W Holtz Ave, Addison, IL 60101 | Preschool |
| St Pius X Preschool | 601 S Westmore Ave, Lombard, IL 60148 | Preschool |
| St Walter School Preschool | 201 W Maple Ave, Roselle, IL 60172 | Preschool |
| St. John Early Childhood Education Center | 7214 S Cass Ave, Darien, IL 60561 | Preschool |
| St. John Ev. Lutheran Pre-School | 1800 S Rodenburg Rd, Schaumburg, IL 60193 | Preschool |
| St. John's Pre-School | 750 Aurora Ave, Naperville, IL 60540 | Preschool |
| Stevenson School Preschool | 18w331 15th St, Lombard, IL 60148 | Preschool |
| Sunrise Montessori Academy | 960 W Army Trail Rd, Addison, IL 60101 | Preschool |
| Sunrise Montessori Academy | 960 W Army Trail Bld, Addison, IL 60101 | Preschool |
| Sunshine Preschool | 520 E Roosevelt Rd, Wheaton, IL 60187 | Preschool |
| Tate Woods Elementary School Preschool | 1736 Middleton Ave, Lisle, IL 60532 | Preschool |
| Tender Loving Care Mont | 30 N Park Ave, Lombard, IL 60148 | Preschool |
| Tender Loving Care Professional | 30 N Park Ave, Lombard, IL 60148 | Preschool |
| The Ark Preschool | 277 Hawthorne Blvd, Glen Ellyn, IL 60137 | Preschool |
| The Big Barn Preschool | 888 S Roselle Rd, Schaumburg, IL 60193 | Preschool |
| The Children's Academy - CLOSED | 4045 Naperville Road, Lisle, IL 60532 | Center |
| The Children's Center of Celebration | 919 S. Washington Street, Naperville, IL 60540 | Preschool |
| The Gardner School of Naperville | 28 W 611 Ferry Road, Warrenville, IL 60555 | Preschool |
| The Growing Place | 1111 E Madison St, Lombard, IL 60148 | Center |
| The Little Shepherd Day School Center | 1020 W Jefferson Ave, Naperville, IL 60540 | Preschool |
| The Shepherd's Learning Academy | 1818 N 32nd Ave, Stone Park, IL 60165 | Center |
| The Village Glendale Heights Parks & Recreation Department Pre-School | 250 Civic Center Plz, Glendale Heights, IL 60139 | Preschool |
| The Wheaton Bible Church Pre-School | 27w500 North Ave, West Chicago, IL 60185 | Preschool |
| The Women's Treatment Center | 1301 W 22nd St Ste 800, Oak Brook, IL 60523 | Center |
| Thomas Dooley Elementary School Preschool | 622 Norwood Ln, Schaumburg, IL 60193 | Preschool |
| Through The Eyes of A Child | 29w100 Butterfield Rd Ste 100, Warrenville, IL 60555 | Center |
| Tick Tock Nursery School | 525 N. Neltnor Blvd., West Chicago, IL 60185 | Preschool |
| Timothy Christian Elementary Preschool | 188 W Butterfield Rd, Elmhurst, IL 60126 | Preschool |
| Tioga Elementary School Preschool | 212 W Memorial Rd, Bensenville, IL 60106 | Preschool |
| Toddlers Campus of First Baptist Church | 1310 N Main St, Wheaton, IL 60187 | Preschool |
| Tot Spot & Latch Key - Westchester Park District | 10201 Bond St, Westchester, IL 60154 | Center |
| Train Up A Child Christian Academy | 300 50th Ave, Bellwood, IL 60104 | Preschool |
| Tree Town Cooperative Nursery School | 235 S Kenilworth Ave, Elmhurst, IL 60126 | Preschool |
| Trinity Care Center | 233 E Maple Ave, Roselle, IL 60172 | Center |
| Trinity Christian Nursery School | 300 S Ardmore Ave, Villa Park, IL 60181 | Preschool |
| Trinity Lutheran Pre-School | 331 George St, West Chicago, IL 60185 | Preschool |
| Trinity Lutheran Preschool | 1101 Kimberly Way, Lisle, IL 60532 | Preschool |
| Trinity Lutheran School Preschool | 405 Rush St, Roselle, IL 60172 | Preschool |
| Trinity Lutheran School Preschool | 1008 E Roosevelt Rd, Lombard, IL 60148 | Preschool |
| Tt Acquisition | 1335 N Arlington Heights Rd, Itasca, IL 60143 | Center |
| Tt Acquisition | 460 75th St, Downers Grove, IL 60516 | Center |
| Tutor Time Child Care Learning Centers | 1970 Army Trail Rd, Hanover Park, IL 60133 | Center |
| Union Church Early Childhood Programs | 137 S Garfield St, Hinsdale, IL 60521 | Preschool |
| Villa Park Head Start | 331 S York Rd # Lifelink, Bensenville, IL 60106 | Preschool |
| Village Children's Academy | 40 S Clay St Ste 1w, Hinsdale, IL 60522 | Preschool |
| Village Children's Academy | 11 E Ogden Ave, Westmont, IL 60559 | Preschool |
| Village of Villa Park - Recreation Department Early Care Programs | 338 N Iowa Ave, Villa Park, IL 60181 | Preschool |
| Visitation Preschool | 851 S York St, Elmhurst, IL 60126 | Preschool |
| Waterbury Elementary School Preschool | 355 Rodenburg Rd, Roselle, IL 60172 | Preschool |
| Weekday Childrens Center | 300 E Gartner Rd, Naperville, IL 60540 | Center |
| West Chicago Head Start | 331 S York Rd, Bensenville, IL 60106 | Preschool |
| Westchester Primary School Preschool | 2400 Downing Ave, Westchester, IL 60154 | Preschool |
| Westdale Elementary School Preschool | 99 Diversey Ave, Melrose Park, IL 60164 | Preschool |
| Westminster Preschool | 500 Anthony St, Glen Ellyn, IL 60137 | Preschool |
| Westover Lane KinderCare - CLOSED | 1122 Westover Lane, Schaumburg, IL 60193 | Preschool |
| Wheaton Montessori School | 1970 N Gary Ave, Wheaton, IL 60187 | Preschool |
| Whittier Elementary School Preschool | 338 Whitehall Ave, Melrose Park, IL 60164 | Preschool |
| William F Murphy Elementary School Preschool | 7700 Larchwood Ln, Woodridge, IL 60517 | Preschool |
| Wilson Montessori Academy | 136 W Vallette St Ste 8, Elmhurst, IL 60126 | Center |
| Wilson Montessori Academy | 136 W Vallette #8, Elmhurst, IL 60126 | Preschool |
| Winfield Primary School Preschool | S150 Winfield Rd, Winfield, IL 60190 | Preschool |
| Winnebago Elementary School Preschool | 195 Greenway Dr, Bloomingdale, IL 60108 | Preschool |
| Wm Hammerschmidt Elementary School Preschool | 617 Hammerschmidt Av, Lombard, IL 60148 | Preschool |
| Woodridge United Methodist Preschool | 2700 75th St, Woodridge, IL 60517 | Preschool |
| Word of Life Lutheran Preschool | 879 Tudor Dr, Naperville, IL 60563 | Preschool |
| Zion Lutheran Early Childhood Ed Center | 204 S Grant St, Hinsdale, IL 60522 | Preschool |
| Zion Lutheran School | 125 S Vine St, Hinsdale, IL 60521 | Preschool |