The Personal Trainer Development Center (PTDC) is an educational resource and business development platform for fitness professionals, founded in 2011 by Jonathan Goodman. Based in Etobicoke, Ontario, PTDC aims to empower personal trainers, nutrition coaches, gym owners, and fitness influencers to create sustainable, client-centered businesses.

PTDC offers a variety of services, including the Online Trainers Academy for certification in online coaching, group workshops for skill refinement, and one-on-one phone consulting. They provide free resources such as articles and guides on client retention and sales techniques. Additionally, PTDC features QuickCoach.Fit, a free software tool for creating professional training programs. Their products include books focused on online training and social media marketing, along with certifications for online coaching specialization. With over 100,000 professionals served, PTDC emphasizes practical solutions that help fitness professionals enhance their impact while enjoying personal freedom.