No need to hunt for that A+. Huntington Learning Centers provides tutoring services to students from kindergarten through 12th grade (ages 5 to 17) to help them get better grades, raise their test scores, and improve their study skills. Each enrolled student is given a series of diagnostic tests to discover his or her abilities, isolate problem areas, and develop an individualized instruction program. The company franchises locations across the US; it has more than 400 learning centers located in 42 states. The firm also offers Huntington School Services franchises that tutor students at underperforming schools. Huntington Learning was founded in 1977 by Dr. Raymond and Eileen Huntington.