National Association of Sports Nutrition   

The National Association of Sports Nutrition is an association of prominent health professionals committed to human sports nutrition. The NASN regulates licenses for Sports Nutritionists, worldwide.

National Council of Strength and Fitness   

NCSF personal trainer courses teach practical skills enabling students to safely and effectively deliver health and fitness to their clientele.

National Exercise and Sports Trainers Association   

An Association for Personal Training, Sports Conditioning, Yoga, Pilates, Integrative Fitness, and Life Coaching Professionals

National Federation of Professional Trainers   

Personal Trainer Certifications & Specialty Exams

National Gym Association, Inc.   

The NGA Certification Course enables you to more confidently pursue positions of responsibility in the fitness industry and to turn your skills into a fitness training enterprise.

National Personal Training Institute   

Personal trainer education and fitness instructor vocational training

National Strength and Conditioning Association   

The NSCA programs include Certified Strength and Conditioning Specialist and NSCA-Certified Personal Trainer, nationally accredited certification programs.

Personal Fitness Training School   

Personal Fitness Training School is an accredited personal fitness training school provides certified personal fitness trainer certification.

Personal Trainer   

PROhealth Lifestyle and Fitness Consultants is an association of Health and fitness Professionals

Pro-Fit WorldWide   

Gain the skills and knowledge you need to be a Certified Personal Trainer in just 25 weeks! Pro-Fit Worldwide offers the Web's foremost online training program for careers in personal training.

Professional Fitness Institute   

Professional Fitness Institute can train you to become a Certified Personal Trainer

Thinkfit®   

Paul Widerman founded Thinkfit and invented Smart Bells. Smart Bells are revolutionary sculptural weights—there is nothing like them: Thinkfit.com (info on Smart Bells & Instructor Certification)