Cupertino, home to Apple Inc. and known for its excellent schools, offers several high-quality tutoring options:

1. AJ Tutoring: Provides comprehensive tutoring services, including SAT/ACT prep and subject-specific help.
2. Mathnasium of Cupertino: Specializes in math tutoring for students of all levels.
3. Cupertino Learning Center: Offers tutoring in various subjects, including STEM fields and standardized test prep.
4. Sylvan Learning of Cupertino: Provides personalized tutoring programs in various subjects and test prep.
5. Kumon Math and Reading Center of Cupertino: Offers their signature method for improving math and reading skills.

For private tutors, consider reaching out to nearby universities like Stanford University or Santa Clara University for recommendations on education majors offering tutoring services.