1. Spectrum Learning Institute 18780 Amar Rd, Walnut, CA 91789 Coordinate: 34.02769,-117.89254 Phone: (626) 820-0966
2. Institute Of Knowledge Inc 659 Brea Canyon Rd, Walnut, CA 91789 Coordinate: 34.00633,-117.84671 Phone: (909) 595-2401