About Us:After School Matters is a Chicago-based nonprofit organization that annually offers after-school and summer programs to nearly 19,000 Chicago high school teens to explore and develop their talents while gaining critical skills that will set them up for success in college and beyond. Thirty-five years later, now known as After School Matters, our program has engaged more than 450,000 Chicago teens and is the nation’s largest and most successful provider of after-school and summer programs for high school teens.