About Us
Founded on experience, driven by purpose — 621 LLC combines professional expertise,
personalized guidance, and genuine care to create real, lasting results.
The 621 Story
Founded in 2025 by John St. Luce, 621 LLC was built on a simple belief — that fitness and wellness should be personal, purposeful, and sustainable.
621 LLC delivers high-quality, evidence-based fitness and nutrition programs for individuals and organizations seeking professional support in achieving their goals. Whether it’s improving strength, health, or overall well-being, 621’s mission is to make that journey positive, measurable, and transformative.
We believe in strength that lasts — physically, mentally, and professionally.
Mission
To inspire, guide, and empower individuals and organizations to live healthier, stronger, and more confident lives through quality fitness and nutrition programs grounded in professionalism, experience, and passion.
Vision
To become a recognized leader in fitness and wellness solutions — known for transforming health standards and creating lasting client success through personalized, evidence-based coaching.
Meet John
Owner & Head Consultant of 621 LLC
John St. Luce has spent over 17 years in the fitness and wellness industry, guiding clients of all backgrounds — from beginners to competitive athletes — toward healthier, stronger, and more confident lives.
Certified through ISSA in both Personal Training and Fitness Nutrition, and CPR certified, John blends technical expertise with a deeply personal coaching philosophy focused on progress, consistency, and mindset.
John’s coaching style combines accountability, empathy, and evidence-based methods, resulting in long-term, sustainable success.
“15 years ago I truly fell in love with health and fitness after acquiring my first client. The experience I had while working with someone who had some limitations brought out a level of care from within that I never knew existed. I believe you first have to change your mindset to achieve what you think is physically impossible. Over the past 12 years I've mainly worked with clients who are beginning their weight loss journey, coaching them to achieve great success. Moving forward, I want to dedicate my time to improving the lives of others through health and fitness.”
— John St. Luce
What Sets 621 Apart
Professional Expertise
17+ years of fitness and nutrition experience — real-world knowledge that delivers real results.
Personalized Coaching
Every program is tailored to you, with in-person guidance that keeps you focused and accountable.
Proven Results
Consistent success, high client retention — because our methods work and our clients stay.
Flexible Solutions
Programs built to fit your lifestyle, goals, and schedule — not the other way around.
Evidence-Based
Science-backed, sustainable training that transforms health without the gimmicks.