ACE Fitness CertificationsACE educates, certifies and represents more than 85,000 health and fitness professionals, health coaches, and other healthcare professionals who have made movement their mission. We are the largest certifier in health and fitness, offering four certifications, accredited by the National Commission for Certifying Agencies (NCCA), the gold standard in the United States for assessing professional competence, and numerous specialties aimed at helping fitness professionals lead special populations.