| L & L Bright Beginnings Pre-School | 25 Mayer Ave, Wheeling, IL 60090 | Preschool |
| Lake Barrington Academy of Stars | 22102 N Pepper Rd, Barrington, IL 60010 | Preschool |
| Lakeview Elementary School Preschool | 615 Lakeview Ln, Hoffman Estates, IL 60169 | Preschool |
| Laura B Sprague School Preschool | 2425 Riverwoods Rd, Lincolnshire, IL 60069 | Preschool |
| Learning Loft | 655 N 1st Bank Dr, Palatine, IL 60067 | Center |
| Lincoln Prairie School | 500 Hillcrest Blvd, Hoffman Estates, IL 60169 | Preschool |
| Lincolnshire Community Nursery School | 30 Riverwoods Rd, Lincolnshire, IL 60069 | Preschool |
| Lincolnshire Montessori School | 1970 Riverwoods Rd, Lincolnshire, IL 60069 | Preschool |
| Little Angels Christian Preschool | 647 Dundee Ave, Barrington, IL 60010 | Preschool |
| Little Bison Day Care Center | 1100 W Dundee Rd, Buffalo Grove, IL 60089 | Preschool |
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| Little Hands Child Development Center | 2755 Sanders Rd, Northbrook, IL 60062 | Preschool |
| Little Lamb Christian Preschool & Kindergarten | 946 E Thacker St, Des Plaines, IL 60016 | Preschool |
| Little Learners Educational Center | 1060 W Rand Rd, Arlington Heights, IL 60004 | Preschool |
| Little Saints Christian Preschool | 630 S Quentin Rd, Palatine, IL 60067 | Preschool |
| Little University | 1250 Radcliffe Rd, Buffalo Grove, IL 60089 | Preschool |
| Long Grove Country School | 20400 Old Hicks Rd, Lake Zurich, IL 60047 | Preschool |
| Lotus Montessori School | 3805 Huntington Blvd, Hoffman Estates, IL 60192 | Preschool |
| M & M Academy - Vernon Hills | 1200 S Lake St, Mundelein, IL 60060 | Preschool |
| Magic Island | 1141 N Arlington Heights Rd, Buffalo Grove, IL 60089 | Center |
| Mark Twain Elementary School Preschool | 515 E Merle Ln, Wheeling, IL 60090 | Preschool |
| May Whitney Elementary School Preschool | 100 Church St, Lake Zurich, IL 60047 | Preschool |
| Meadowbrook Elementary School Preschool | 1600 Walters Ave, Northbrook, IL 60062 | Preschool |
| Medallion School Partnerships - Willow Gro | 777 Checker Dr, Buffalo Grove, IL 60089 | Center |
| Messiah Lutheran Preschool | 25225 W Ivanhoe Rd, Wauconda, IL 60084 | Preschool |
| Michael Collins Elementary School Preschool | 407 Summit Dr, Schaumburg, IL 60193 | Preschool |
| Mon Jardin | 20630 Milwaukee Ave, Deerfield, IL 60015 | Preschool |
| Montessori & Music Center | 1200 S Lake St, Mundelein, IL 60060 | Preschool |
| Montessori Children's House | 1500 Wilmot Rd, Deerfield, IL 60015 | Preschool |
| Montessori Childrens HeadStart of N Barrington | 115 Clover Hill Ln, Barrington, IL 60010 | Preschool |
| Montessori Childrens House | 115 Clover Hill Ln, Barrington, IL 60010 | Preschool |
| Montessori Learning Center | 1011 W Golf Rd # 1015, Hoffman Estates, IL 60169 | Center |
| Montessori Learning Center | 1819 N Yale Ave, Arlington Heights, IL 60004 | Preschool |
| Montessori School of Long Grove | 1115 Rfd, Lake Zurich, IL 60047 | Preschool |
| Montessori School of Long Grove Preschool | 1115 Rfd, Lake Zurich, IL 60047 | Preschool |
| Montessori School of North Hoffman Preschool | 1200 Freeman Rd, Hoffman Estates, IL 60192 | Preschool |
| Montessori Schoolhouse | 501 S Emerson St, Mount Prospect, IL 60056 | Preschool |
| Montessori World of Discovery | 1395 N Arlington Heights Rd, Buffalo Grove, IL 60089 | Preschool |
| Montessori World of Discovery | 1395 N Arlington Hts, Buffalo Grove, IL 60089 | Preschool |
| Montessori and Music Center | 1200 S Lake, Mundelein, IL 60060 | Preschool |
| Motorola Child Care & Education Centers | 1315 E Algonquin Road, Schaumburg, IL 60196 | Center |
| Mount Prospect Child Care Center | 406 E Northwest Hwy # 408, Mount Prospect, IL 60056 | Preschool |
| Mundelein Meadows KinderCare - CLOSED | 800 S. IL Route 83, Mundelein, IL 60060 | Preschool |
| Mundelein Montessori School | 1401 S Lake St, Mundelein, IL 60060 | Preschool |
| Mundelein Montessori School Preschool | 1401 S Lake St, Mundelein, IL 60060 | Preschool |
| Nathan Hale Elementary School Preschool | 1300 W Wise Rd, Schaumburg, IL 60193 | Preschool |
| Nathaniel Hawthorne EC School Preschool | 200 Glendale St, Wheeling, IL 60090 | Preschool |
| Neil Armstrong Elementary School Preschool | 1320 Kingsdale Rd, Hoffman Estates, IL 60169 | Preschool |
| North Suburban YMCA | 2705 Techny Rd, Northbrook, IL 60062 | Center |
| Northbrook Community Nursery School | Po Box 2204, Northbrook, IL 60065 | Preschool |
| Northwest Suburban Montessori School | 800 N Fernandez Ave, Arlington Heights, IL 60004 | Preschool |
| Northwest Suburban Montessori School Preschool | 800 N Fernandez Ave, Arlington Heights, IL 60004 | Preschool |
| One Leap Ahead Learning Center and Child Care | 3588 Milwaukee Ave, Northbrook, IL 60062 | Center |
| Our Lady of The Wayside Preschool | 432 S Mitchell Ave, Arlington Heights, IL 60005 | Preschool |
| Our Lord's Little Ones | 25967 N Arrowhead Dr, Mundelein, IL 60060 | Center |
| Palatine Park Dist. Preschool-maple Park | 250 E Wood St, Palatine, IL 60067 | Preschool |
| Palatine Park District Preschool - Birchwood | 250 E Wood St, Palatine, IL 60067 | Preschool |
| Palatine Park District Preschool - Eagle | 250 E Wood St, Palatine, IL 60067 | Preschool |
| Palatine Park District Preschool Parkside | 250 E Wood St, Palatine, IL 60067 | Preschool |
| Park View Montessori | 805 N Burning Bush, Mount Prospect, IL 60056 | Preschool |
| Park View Montessori School | 805 N Burning Bush Ln, Mount Prospect, IL 60056 | Preschool |
| Plato Academy Preschool | 733 Lee St Ste 200, Des Plaines, IL 60016 | Preschool |
| Poko Loko Child Care Center | 404 S Elmhurst Rd, Wheeling, IL 60090 | Center |
| Precious Angels | 1833 W Golf Rd, Schaumburg, IL 60194 | Center |
| Prince of Peace Lutheran Preschool | 930 W Higgins Rd, Schaumburg, IL 60195 | Preschool |
| Queen of The Rosary School Preschool | 690 W Elk Grove Blvd, Elk Grove Village, IL 60007 | Preschool |
| Ray Walker Head Start | 653 Windsor Dr, Schaumburg, IL 60193 | Preschool |
| Red Wagon Child Care Center | 1225 E Davis St, Arlington Heights, IL 60005 | Center |
| Ridge Family Center For Learning | 650 Ridge Ave, Elk Grove Village, IL 60007 | Preschool |
| Riverwoods Montessori Preschool | 3140 Riverwoods Rd, Deerfield, IL 60015 | Preschool |
| Riverwoods Montessori School | 3140 Riverwoods Rd, Deerfield, IL 60015 | Preschool |
| Robert Frost Elementary School Preschool | 1308 S Cypress Dr, Mount Prospect, IL 60056 | Preschool |
| Rupley Elementary School Preschool | 305 Oakton St, Elk Grove Village, IL 60007 | Preschool |
| Safari Childcare | 1630 W Algonquin Rd, Mount Prospect, IL 60056 | Preschool |
| Safari Childcare | 1736 E Kensington Rd # 38, Mount Prospect, IL 60056 | Preschool |
| Safari Childcare | 126 E Wing St Ste 336, Arlington Heights, IL 60005 | Center |
| Safari Childcare Incorporated | 1524 W Algonquin Rd, Palatine, IL 60067 | Center |
| Salem Methodist Preschool | 115 W Lincoln Ave, Barrington, IL 60010 | Preschool |
| Salem Plaza KinderCare - CLOSED | 1021 North Salem Dr., Schaumburg, IL 60194 | Preschool |
| Salt Creek Elementary School Preschool | 65 Jf Kennedy Blvd, Elk Grove Village, IL 60007 | Preschool |
| Santa Maria Del Popolo Preschool | 126 N Lake St, Mundelein, IL 60060 | Preschool |
| Sarah Adams Elementary School Preschool | 555 Old Mill Grove, Lake Zurich, IL 60047 | Preschool |
| Schaumburg Christian School Preschool | 200 N Roselle Rd, Schaumburg, IL 60194 | Preschool |
| Schoolhouse Children's Center at Hawthorn | 301 W Hawthorn Pkwy, Vernon Hills, IL 60061 | Center |
| Science and Arts Academy | 1825 Miner St, Des Plaines, IL 60016 | Preschool |
| Shepherds Flock | 800 W Oakton St, Arlington Heights, IL 60004 | Preschool |
| Small World Children's Center | 2316 Hassell Rd, Hoffman Estates, IL 60169 | Preschool |
| Sonshine Nursery School | 304 W Palatine Rd, Prospect Heights, IL 60070 | Center |
| South Park Elementary School Preschool | 1421 Hackberry Rd, Deerfield, IL 60015 | Preschool |
| Spencer Loomis Elementary School Preschool | 1 Hubbard Ln, Lake Zurich, IL 60047 | Preschool |
| St Alphonsus Liguori Preschool | 411 N Wheeling Rd, Prospect Heights, IL 60070 | Preschool |
| St Anne Preschool | 319 Franklin St, Barrington, IL 60010 | Preschool |
| St Catherine Laboure Preschool | 3425 Thornwood Ave, Glenview, IL 60026 | Preschool |
| St Colette School Preschool | 3900 Pheasant Dr, Rolling Meadows, IL 60008 | Preschool |
| St Emily School Preschool | 1400 E Central Rd, Mount Prospect, IL 60056 | Preschool |
| St Francis De Sales Preschool | 11 S Buesching Rd, Lake Zurich, IL 60047 | Preschool |
| St Hubert School Preschool | 255 Flagstaff Ln, Hoffman Estates, IL 60169 | Preschool |
| St James School Preschool | 821 N Arlington Hts, Arlington Heights, IL 60004 | Preschool |
| St Mary Preschool | 50 N Buffalo Grv Rd, Buffalo Grove, IL 60089 | Preschool |
| St Matthew Lutheran School Preschool | 24480 N Old McHenry, Lake Zurich, IL 60047 | Preschool |
| St Paul Lutheran School Preschool | 18 S School St, Mount Prospect, IL 60056 | Preschool |