Since its founding in 1985, ACE has certified more than 200,000 health and fitness professionals in the United States and 77 other countries. ACE certification exams are standardized, broad-based tests of the knowledge necessary to safely and effectively instruct one on one, lead group exercise, and consult on lifestyle and weight-management issues. ACE also offers a clinical exercise specialist certification for fitness professionals who work with clients who have recently recovered from injury or illness. In 2003, the American Council on Exercise was granted accreditation for all of its certification programs by the National Commission for Certifying Agencies (NCCA).

NCCA is the accreditation body of the National Organization for Competency Assurance (NOCA). The NCCA accreditation serves as a benchmark on how organizations should conduct certification. There are more than 300 fitness certification programs available to the public. The NCCA accreditation clearly distinguishes the excellence and value of ACE certification and clearly discriminates between qualified and unqualified fitness professionals.

ACE-certified Professionals are the most sought after and respected fitness instructors in the world. Known for their inspiration, dedication and knowledge, they train and educate their clients on safe and effective exercise techniques and motivate them to achieve healthier lifestyles. Through the ACE Academy, ACE-certified Professionals plan for and maintain their certification through exam preparation, practical training and continuing education. The Academy offers opportunities for fitness professionals to enhance their credentials at all levels.