The people behind powerhouse
Director of People, Culture & OperationsCoach • Recruiter • Operations
MARISSA D WILSON
Founder Coach • Educator • Mentor
Marissa founded Powerhouse Fitness with a simple belief: exceptional coaching and genuine community have the power to change lives. With more than 20 years in the health and fitness industry, she has dedicated her career to helping people build strength, confidence, and longevity through intentional movement.
Before opening Powerhouse in 2020, Marissa helped launch and develop boutique fitness studios, gaining extensive experience in leadership, operations, instructor development, and member experience. Her approach blends technical expertise with thoughtful coaching, creating an environment where every client feels challenged, supported, and seen.
As a mother of three, Marissa understands the demands of balancing health, family, and career. That perspective continues to shape her coaching philosophy: movement should empower people both inside and outside the studio.
Credentials
20+ Years in Health & Fitness
BASI Comprehensive Pilates
Lagree Level 1 & 2
500-Hour Yoga Teacher
Personal Training
Integrative Health Coaching
MBA
Master of Interior Architecture
"Great workouts build strong bodies. Great communities build confident people."
Studio managerCoach • Client Experience • Operations
amandeep parhar
Troy's journey into fitness began during one of the most challenging seasons of his life. After being laid off from a company he deeply loved, he turned to Pilates in search of renewed purpose. What started as personal healing quickly became a passion for helping others discover their own strength through movement.
He began teaching Powerhouse's FIIT program before apprenticing under Marissa Wilson, where he studied Pilates, anatomy, tactile instruction, and intentional cueing. Since beginning his teaching career in 2023, Troy has taught more than 500 hours and built a reputation for thoughtful coaching, authentic connection, and classes that challenge clients while making them feel supported.
Today, Troy leads People, Culture & Operations, combining his background in recruiting with his passion for developing instructors and building a studio culture rooted in excellence, connection, and community. His long-term goal is to become a Lagree Master Teacher and help educate the next generation of instructors around the world.
Credentials
BASI Certified Pilates Instructor
Lagree Level 1
Lagree Level 2
500+ Teaching Hours
"Movement gave me purpose. Helping others discover theirs is why I coach.
Troy bernritter
Troy's journey into fitness began during one of the most challenging seasons of his life. After being laid off from a company he deeply loved, he turned to Pilates in search of renewed purpose. What started as personal healing quickly became a passion for helping others discover their own strength through movement.
He began teaching Powerhouse's FIIT program before apprenticing under Marissa Wilson, where he studied Pilates, anatomy, tactile instruction, and intentional cueing. Since beginning his teaching career in 2023, Troy has taught more than 500 hours and built a reputation for thoughtful coaching, authentic connection, and classes that challenge clients while making them feel supported.
Today, Troy leads People, Culture & Operations, combining his background in recruiting with his passion for developing instructors and building a studio culture rooted in excellence, connection, and community. His long-term goal is to become a Lagree Master Teacher and help educate the next generation of instructors around the world.
Credentials
BASI Certified Pilates Instructor
Lagree Level 1
Lagree Level 2
500+ Teaching Hours
"Movement gave me purpose. Helping others discover theirs is why I coach.
Lead lagree coachCoach • Mentor • Movement Specialist
Maggie believes the best classes challenge both your body and your mindset. As Powerhouse Fitness's Lead Lagree Instructor, she's known for creating classes that are equal parts encouraging and demanding—combining thoughtful coaching with advanced sequencing that pushes clients beyond what they thought was possible.
Before joining Powerhouse, Maggie coached at The Dungeon in Orange County, where she developed a strong technical foundation in the Lagree Method. For more than two years, she has continued to refine her coaching through ongoing education, mentorship, and a genuine passion for helping clients move with strength, precision, and confidence.
A graduate of Chapman University and currently pursuing graduate studies, Maggie brings the same dedication to learning into every class she teaches. Her attention to detail, technical expertise, and ability to connect with every client have made her one of Powerhouse's most loved instructors.
Clients know Maggie for her warm, approachable personality—but they also know not to underestimate her. Her classes are challenging, creative, and just the right amount of spicy. Whether you're taking your first Lagree class or looking to elevate your practice, Maggie's goal is to help you leave feeling stronger than when you walked in.
Education & Certifications
Graduate, Chapman University
Graduate Studies (currently pursuing)
Lagree Fitness Level 1 Certified
Lagree Fitness Level 2 Certified
Over 2 Years Coaching Lagree