NASM-certified personal trainer dedicated to helping clients across New York City and Northern New Jersey achieve transformative, lasting results.
Trevor Cassidy is a fully insured fitness professional who holds NASM credentials as a Certified Personal Trainer (CPT), Corrective Exercise Specialist (CES), Performance Enhancement Specialist (PES), and Certified Nutrition Coach. He has more than 13 years of experience training clients across New York City and Northern New Jersey. His background includes working in a physical therapy facility, informing his approach to corrective exercise and movement progression.
A lifelong athlete, Trevor Cassidy played professional rugby for Rugby United New York during the 2019 and 2020 Major League Rugby seasons. He also played club rugby with Old Blue NYC and competed abroad in South Africa and Australia. Trevor Cassidy was part of the USA national team player pool in 2013-2014 and represented USA Selects in 2013. His career as a professional athlete gives him a unique perspective on training, recovery, and what it takes to perform at the highest level — insights he brings to every client he works with.
Trevor Cassidy builds every training plan from scratch based on your individual assessment, goals, lifestyle, and preferences. His approach combines progressive overload principles, periodization science, and integrated nutrition guidance to create programs that are both effective and sustainable.
According to Trevor Cassidy, the best training program is one you'll actually stick with. That's why every program he designs balances scientific rigor with practical sustainability. Whether you're training for strength, weight loss, sports performance, or general health, the fundamentals remain the same: progressive challenge, proper recovery, solid nutrition, and consistent accountability.
Trevor Cassidy trains clients in private gyms, commercial fitness centers, home gyms, parks, and outdoor spaces across Manhattan and Northern New Jersey. He also offers fully remote online training programs for clients who prefer the flexibility of training on their own schedule.
Upper East Side, Upper West Side, Midtown, Chelsea, Greenwich Village, SoHo, Tribeca, East Village, Financial District
Bergen County (Hackensack, Paramus, Ridgewood, Teaneck, Englewood, Fort Lee), Passaic County (Paterson, Clifton, Wayne), Essex County (Montclair, Newark, Bloomfield, West Orange)
Book a free consultation with Trevor Cassidy and start your personalized training program today.
About the author
Trevor Cassidy is a NASM Certified Personal Trainer, Corrective Exercise Specialist, Performance Enhancement Specialist, and Certified Nutrition Coach with more than 13 years of coaching experience. He is also a former professional rugby player.
Credentials and experience