| Montessori & Music Center | 1200 S Lake St, Mundelein, IL 60060 | Preschool |
| Montessori Children's House | 1500 Wilmot Rd, Deerfield, IL 60015 | Preschool |
| Montessori Connection | 1731 Deerfield Rd, Highland Park, IL 60035 | Preschool |
| Montessori Connection East | 330 Laurel Ave, Highland Park, IL 60035 | Preschool |
| Montessori Learning Center | 1819 N Yale Ave, Arlington Heights, IL 60004 | Preschool |
| Montessori School of Lake Forest | 13700 W Laurel Dr, Lake Forest, IL 60045 | 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 Schoolhouse | 501 S Emerson St, Mount Prospect, IL 60056 | Preschool |
| Montessori World of Discovery | 1395 N Arlington Heights Rd, Buffalo Grove, IL 60089 | Preschool |
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| Montessori World of Discovery | 1395 N Arlington Hts, Buffalo Grove, IL 60089 | Preschool |
| Montessori and Music Center | 1200 S Lake, Mundelein, IL 60060 | Preschool |
| Moriah Preschool Day Care Center | 200 Taub Dr, Deerfield, IL 60015 | Preschool |
| Mount Prospect Child Care Center | 406 E Northwest Hwy # 408, Mount Prospect, IL 60056 | Preschool |
| Mundelein Montessori School | 1401 S Lake St, Mundelein, IL 60060 | Preschool |
| Mundelein Montessori School Preschool | 1401 S Lake St, Mundelein, IL 60060 | Preschool |
| NSS Beth El Paul & Sylvia Steinberg Pre School | 1175 Sheridan Rd, Highland Park, IL 60035 | Center |
| Nathaniel Hawthorne EC School Preschool | 200 Glendale St, Wheeling, IL 60090 | Preschool |
| North Shore Country Day School Preschool | 310 Green Bay Rd, Winnetka, IL 60093 | Preschool |
| North Suburban YMCA | 2705 Techny Rd, Northbrook, IL 60062 | Center |
| Northbrook Community Nursery School | Po Box 2204, Northbrook, IL 60065 | Preschool |
| Northfield Community Nursery School | 400 Wagner Rd, Winnetka, IL 60093 | Preschool |
| Northminster Nursery School | 2515 Central Park Ave, Evanston, IL 60201 | Center |
| 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 |
| Oak Grove Elementary School Preschool | 1700 Oplaine Rd, Libertyville, IL 60048 | Preschool |
| One Leap Ahead Learning Center and Child Care | 3588 Milwaukee Ave, Northbrook, IL 60062 | Center |
| Open Arms Christian Child Development Center | 1850 Chestnut Ave, Glenview, IL 60025 | Center |
| Our Lady of Perpetual Help Preschool | 1123 Church St, Glenview, IL 60025 | Preschool |
| 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 |
| Park Ridge Intercultural Montessori | 8800 W Ballard Rd, Des Plaines, IL 60016 | Center |
| Park View Elementary School Preschool | 6200 Lake St, Morton Grove, IL 60053 | 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 |
| Pattie Cake Child Care | 1298 S Milwaukee Ave, Libertyville, IL 60048 | Center |
| Paul K. Kennedy Child Care Center | 3001 Green Bay Rd Bldg 135, North Chicago, IL 60064 | Center |
| Plato Academy Preschool | 733 Lee St Ste 200, Des Plaines, IL 60016 | Preschool |
| Pleasant Ridge Elementary School Preschool | 1730 Sunset Ridge Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Child Care Center | 404 S Elmhurst Rd, Wheeling, IL 60090 | Center |
| Poko Loko Day Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Poko Loko Early Learning Center | 1601 North Windrd, Libertyville, IL 60048 | Preschool |
| Poko Loko Infant / Toddler Center | 320 Waukegan Rd, Glenview, IL 60025 | Center |
| Poko Loko Nursery School | 300 Waukegan Rd, Glenview, IL 60025 | Preschool |
| Ravinia Nursery School | 686 Red Oak Ln, Highland Park, IL 60035 | Center |
| Red Wagon Child Care Center | 1225 E Davis St, Arlington Heights, IL 60005 | Center |
| 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 |
| Romona Elementary School Preschool | 600 Romona Rd, Wilmette, IL 60091 | Preschool |
| Ronald Knox Montessori School | 2031 Elmwood Ave, Wilmette, IL 60091 | Center |
| Rose Hall Montessori School | 1140 Wilmette Ave, Wilmette, IL 60091 | Center |
| Sacred Heart School Preschool | 1095 Gage St, Winnetka, IL 60093 | 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 |
| Sally Potter School Preschool - Lake Forest | 300 S Waukegan Rd, Lake Forest, IL 60045 | Preschool |
| School of St Mary Preschool | 185 E Illinois Rd, Lake Forest, IL 60045 | 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 |
| Sonshine Nursery School | 304 W Palatine Rd, Prospect Heights, IL 60070 | Center |
| South Park Elementary School Preschool | 1421 Hackberry Rd, Deerfield, IL 60015 | Preschool |
| St Alphonsus Liguori Preschool | 411 N Wheeling Rd, Prospect Heights, IL 60070 | Preschool |
| St Catherine Laboure Preschool | 3425 Thornwood Ave, Glenview, IL 60026 | Preschool |
| St Emily School Preschool | 1400 E Central Rd, Mount Prospect, IL 60056 | Preschool |
| St Faith Hope & Charity Preschool | 180 Ridge Ave, Winnetka, IL 60093 | Preschool |
| St Francis Xavier Preschool | 808 Linden Ave, Wilmette, IL 60091 | Preschool |
| St James Preschool | 140 North Ave, Highwood, IL 60040 | Preschool |
| St James School Preschool | 821 N Arlington Hts, Arlington Heights, IL 60004 | Preschool |
| St John Brebeuf School Preschool | 8301 N Harlem Ave, Niles, IL 60714 | Preschool |
| St Johns Lutheran School Preschool | 501 W Park Ave, Libertyville, IL 60048 | Preschool |
| St Joseph Preschool | 1740 Lake Ave, Wilmette, IL 60091 | Preschool |
| St Joseph School Preschool | 221 Park Pl, Libertyville, IL 60048 | Preschool |
| St Mary Preschool | 50 N Buffalo Grv Rd, Buffalo Grove, IL 60089 | Preschool |
| St Norbert School Preschool | 1817 Walters Ave, Northbrook, IL 60062 | Preschool |
| St Paul Lutheran School Preschool | 18 S School St, Mount Prospect, IL 60056 | Preschool |
| St Peter Lutheran School Preschool | 111 W Olive St, Arlington Heights, IL 60004 | Preschool |
| St Raymond School Preschool | 300 S Elmhurst Ave, Mount Prospect, IL 60056 | Preschool |
| St Thomas of Villanova Preschool | 1141 E Anderson Dr, Palatine, IL 60074 | Preschool |
| St. David's Nursery School | 2410 Glenview Rd, Glenview, IL 60025 | Preschool |
| St. Elisabeth's Nursery School | 556 Vernon Ave, Glencoe, IL 60022 | Center |
| St. Gregory's Episcopal Preschool | 815 Wilmot Rd, Deerfield, IL 60015 | Preschool |
| St. Mark Preschool | 200 S Wille St, Mount Prospect, IL 60056 | Preschool |
| St. Matthew's Lutheran Preschool | 9204 N Milwaukee Ave, Niles, IL 60714 | Preschool |
| Sunshine Day Care Center of Desplaines | 1157 E Algonquin Rd, Des Plaines, IL 60016 | Center |
| Tamarak Country School | 23970 N Elm Rd, Lincolnshire, IL 60069 | Preschool |
| Terrace Elementary School Preschool | 735 S Westgate Rd, Des Plaines, IL 60016 | Preschool |
| The Children's Center at Lake Forest | 28457 N Ballard Dr Ste A2, Lake Forest, IL 60045 | Preschool |
| The Children's Center of Lakeside | 1221 County Line Rd, Highland Park, IL 60035 | Preschool |
| The Children's House | 223 W Golf Rd, Libertyville, IL 60048 | Preschool |
| The Childrens Circle Full Day Preschool | 999 Green Bay Rd, Glencoe, IL 60022 | Preschool |
| The Developing Child | 433 Vine Ave, Highland Park, IL 60035 | Center |
| The Goddard School | 9651 GROSS POINT RD, Skokie, IL 60076 | Center |
| The Grove Montessori School | 1660 Checker Rd, Lake Zurich, IL 60047 | Preschool |
| The Joseph Sears School | 542 Abbotsford Rd, Kenilworth, IL 60043 | Preschool |
| The Little Ones Nursery School | 765 Sanders Rd, Northbrook, IL 60062 | Preschool |
| The Mustard Seed Nursery School | 2245 Walters Ave, Northbrook, IL 60062 | Preschool |
| Tick Tock Hourly Child Care | 197 Northfield Rd, Winnetka, IL 60093 | Preschool |
| Torah Academy | 225 McHenry Rd, Buffalo Grove, IL 60089 | Preschool |
| Tri-Con Child Care Center | 425 Laurel Ave, Highland Park, IL 60035 | Preschool |