| Institute of Positive Education | 7825 S Ellis Ave, Chicago, IL 60619 | Preschool |
| Inter-American Elementary Magnet School Preschool | 851 W Waveland Ave, Chicago, IL 60613 | Preschool |
| Intercultural Montessori Preschool | 301 S Ridgeland Ave, Oak Park, IL 60302 | Preschool |
| Irving Elementary School Preschool | 805 S 17th Ave, Maywood, IL 60153 | Preschool |
| Irving Elementary School Preschool | 749 S Oakley Blvd, Chicago, IL 60612 | Preschool |
| Irving Elementary School Preschool | 3501 Clinton Ave, Berwyn, IL 60402 | Preschool |
| Irving Park Early Learning Center | 3021 W Montrose Ave # 23, Chicago, IL 60618 | Preschool |
| Irving Park Infant Toddler Center | 3000 W Montrose Ave # 3006, Chicago, IL 60618 | Preschool |
| Irving Park Y.M.C.A. | 4251 W Irving Park Rd, Chicago, IL 60641 | Center |
| It Takes A Village Early Learning Center | 4020 W Division St, Chicago, IL 60651 | Preschool |
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| It Takes A Village Services | 4000 W Division St, Chicago, IL 60651 | Preschool |
| It Takes A Village at River City | 800 S Wells St Ste 90, Chicago, IL 60607 | Preschool |
| Itsy Bitsy People Palace | 7419 S Cottage Grove Ave, Chicago, IL 60619 | Preschool |
| Itsy Bitsy People Palace III | 7411 S Cottage Grove Ave, Chicago, IL 60619 | Preschool |
| Iva Playhouse | Po Box 528157, Chicago, IL 60652 | Center |
| Ivy Garden After School Center | 625 W 31st St, Chicago, IL 60616 | Center |
| J Giles Elementary School Preschool | 4251 N Oriole Ave, Harwood Heights, IL 60706 | Preschool |
| J Leigh Elementary School Preschool | 8151 W Lawrence Ave, Harwood Heights, IL 60706 | Preschool |
| J W Robinson Jr Elementary School Preschool | 4431 Gage Ave, Lyons, IL 60534 | Preschool |
| JFH Educational Academy | 7642 W Irving Park, Harwood Heights, IL 60706 | Preschool |
| Jackson M Elementary School Preschool | 917 W 88th St, Chicago, IL 60620 | Preschool |
| Jahn Elementary School Preschool | 3149 N Wolcott Ave, Chicago, IL 60657 | Preschool |
| Jane Addams Elementary School Preschool | 910 Division St, Melrose Park, IL 60160 | Preschool |
| Jane Addams Hull House Leclaire | 1030 W Van Buren St Fl 5, Chicago, IL 60607 | Center |
| Jeanne Kenney YMCA Day Care Center | 7600 S Parnell Ave, Chicago, IL 60620 | Center |
| Jefferson Elementary School Preschool | 225 46th Ave, Bellwood, IL 60104 | Preschool |
| Jefferson Elementary School Preschool | 7035 16th St, Berwyn, IL 60402 | Preschool |
| Jehovah Lutheran School Preschool | 3740 W Belden Ave, Chicago, IL 60647 | Preschool |
| Jellybean Learning Center | 8501 S Ashland Ave, Chicago, IL 60620 | Center |
| Jellybean Learning Center II | 358 E 71st St # 370, Chicago, IL 60619 | Center |
| Jenner Elementary Academy of The Arts Preschool | 1119 N Cleveland Ave, Chicago, IL 60610 | Preschool |
| Jensen Elementary Scholastic Academy Preschool | 3030 W Harrison St, Chicago, IL 60612 | Preschool |
| Jewish Council For Youth Orchard Branch | 957 W Grace St, Chicago, IL 60613 | Center |
| Jewish Council For Youth Services - Lakeview | 957 W Grace St, Chicago, IL 60613 | Preschool |
| Johnson Elementary School Preschool | 1420 S Albany Ave, Chicago, IL 60623 | Preschool |
| Jolly Fun House Playschools | 7559 W Addison St, Chicago, IL 60634 | Preschool |
| Joplin Elementary School Preschool | 7931 S Honore St, Chicago, IL 60620 | Preschool |
| Jordan Baptist School Preschool | 5040 W 87th St, Burbank, IL 60459 | Preschool |
| Joyful Noise Christian Daycare | 4243 N North Ave, Chicago, IL 60639 | Center |
| Jungman Elementary School Preschool | 1746 S Miller St, Chicago, IL 60608 | Preschool |
| Just For Kids | 5036 S Blackstone, Chicago, IL 60615 | Preschool |
| Kacs Early Childhood Center | 4300 N California Ave, Chicago, IL 60618 | Preschool |
| Kaleidoscope Kids Academy | 6958 Windsor Ave, Berwyn, IL 60402 | Center |
| Kalina Preschool & Kindergarten | 4100 N California Ave, Chicago, IL 60618 | Preschool |
| Kangaroo Korner Day Care Center | 900 Beloit Ave, Forest Park, IL 60130 | Preschool |
| Kanoon Elementary Magnet School Preschool | 2233 S Kedzie Ave, Chicago, IL 60623 | Preschool |
| Kc's Academy & Early Childhood Education | 835 W Sheridan Rd, Chicago, IL 60613 | Preschool |
| Keeper's Institute | 2718 W 59th St, Chicago, IL 60629 | Center |
| Kellman Corporate Community Elementary Preschool | 751 S Sacramento Blv, Chicago, IL 60612 | Preschool |
| Kensington School | 2215 York Rd Ste 204, Oak Brook, IL 60523 | Center |
| Kensington School of The Highlands | 2215 York Rd Ste 203, Oak Brook, IL 60523 | Center |
| Kensington School of Western Springs | 1500 Walker St, Western Springs, IL 60558 | Center |
| Kershaw Elementary School Preschool | 6450 S Lowe Ave, Chicago, IL 60621 | Preschool |
| Ketchings Cradle | 35 S 19th Ave, Maywood, IL 60153 | Center |
| Key Steps To Success | 4945 W Division St Fl 1, Chicago, IL 60651 | Center |
| Keystone Montessori School | Po Box 5548, River Forest, IL 60305 | Preschool |
| Kid'z Colony Day Care | 6287 S Archer Ave # 95, Chicago, IL 60638 | Preschool |
| Kid'z Imaginations Day Care | 5334 S Archer Ave, Chicago, IL 60632 | Center |
| Kiddie Academy of Carpentersville | 1000 W Adams St Apt 412, Chicago, IL 60607 | Preschool |
| Kiddie Garden Little Angels Child Care Center | 4235 S Kedzie Ave, Chicago, IL 60632 | Center |
| Kiddie Korner Academy | 7730 W North Ave, Elmwood Park, IL 60707 | Center |
| Kiddie Korral Academy | Po Box 23020, Chicago, IL 60623 | Center |
| Kiddie Kottage Day Care Center | 1946 W 87th St # 48, Chicago, IL 60620 | Preschool |
| Kiddy Comfort Zone #1 Day Care Center | 817 N Hamlin Ave, Chicago, IL 60651 | Center |
| Kiddy Comfort Zone Day Care Center | 6441 North Ave Ste 103, Oak Park, IL 60302 | Center |
| Kiddy Kare Pre-School | 4444 46 South Kedzie, Chicago, IL 60632 | Preschool |
| Kids Academy | 3509 S King Dr, Chicago, IL 60653 | Center |
| Kids Corner Academy | 2416 S Michigan Ave, Chicago, IL 60616 | Center |
| Kids Count Too Day Care Center | 360 - 364 E 61st St, Chicago, IL 60637 | Center |
| Kids Count Too Daycare Center | 1106 W 63rd St # 08, Chicago, IL 60621 | Center |
| Kids Count Too Daycare Center | 448 E 61st St # 452, Chicago, IL 60637 | Center |
| Kids Count Too Daycare Center | 8531 S 88th Ave, Justice, IL 60458 | Center |
| Kids Hope Child Development Center | 514 W 31st St, Chicago, IL 60616 | Preschool |
| Kids In Harmony Day School | 5039 W Berenice Ave, Chicago, IL 60641 | Center |
| Kids R First | 7538 S Halsted St, Chicago, IL 60620 | Center |
| Kids R First | 9040 S Vincennes Ave, Chicago, IL 60620 | Center |
| Kids R First Learning Academy | 1155 W 81st St, Chicago, IL 60620 | Center |
| Kids Work Chicago | 3842 N Claremont Ave, Chicago, IL 60618 | Preschool |
| Kids World Day Care | 5910 W Montrose Ave # 12, Chicago, IL 60634 | Center |
| Kidslife Daycare Center | 4447 W Fullerton Ave # 55, Chicago, IL 60639 | Preschool |
| Kidwatch Plus | 3901 N Ridgeway Ave, Chicago, IL 60618 | Preschool |
| Kidwatch Plus Inc | 3901 N Ridgeway Ave, Chicago, IL 60618 | Preschool |
| Kidz Creative Concepts | 719 E 63rd St, Chicago, IL 60637 | Center |
| King Elementary School Preschool | 740 S Campbell Ave, Chicago, IL 60612 | Preschool |
| King's Kiddie Kingdom | 815 W 74th St, Chicago, IL 60621 | Preschool |
| Kinzie Elementary School Preschool | 5625 S Mobile Ave, Chicago, IL 60638 | Preschool |
| Kolmar Avenue Elementary School Preschool | 10425 S Kolmar Ave, Oak Lawn, IL 60453 | Preschool |
| Komarek Elementary School Preschool | 8940 W 24th St, Riverside, IL 60546 | Preschool |
| Kove Learning Academy | 3137 W 71st St, Chicago, IL 60629 | Center |
| Kozminski Elementary Community Academy Preschool | 936 E 54th St, Chicago, IL 60615 | Preschool |
| L L Performing Arts Academy Preschool | 1551 W 95th St, Chicago, IL 60643 | Preschool |
| La Progresiva Pre-School | 2609 N Kimball Ave, Chicago, IL 60647 | Preschool |
| Lafayette Elementary School Preschool | 2714 W Augusta Blvd, Chicago, IL 60622 | Preschool |
| Lake Shore Preparatory School Preschool | 300 W Hill St, Chicago, IL 60610 | Preschool |
| Lakefront Children's Academy | 400 E Randolph St Fl 6b, Chicago, IL 60601 | Preschool |
| Langford A Elementary School Preschool | 6010 S Throop St, Chicago, IL 60636 | Preschool |
| Lara Elementary Academy Preschool | 4619 S Wolcott Ave, Chicago, IL 60609 | Preschool |
| Lasalle II Magnet Elementary School Preschool | 1148 N Honore St, Chicago, IL 60622 | Preschool |
| Lathrop Elementary School Preschool | 1440 S Christiana Av, Chicago, IL 60623 | Preschool |
| Latin School of Chicago Lower Preschool | 1531 N Dearborn Pkwy, Chicago, IL 60610 | Preschool |