Kelli Vossler

Kelli Vossler is not just a fitness professional; she is a dynamic leader with a proven track record of driving both personal transformation and business success. With a unique blend of athletic excellence, coaching expertise, and a deep commitment to empowering individuals, Kelli is the game-changing partner businesses need to cultivate high-performance cultures and inspire teams to thrive—physically, mentally, and professionally.

A former college athlete with a passion for strength and conditioning, Kelli understands the power of perseverance, teamwork, and a mindset built for success. After an impactful career in competitive sports, Kelli dedicated herself to coaching and developing the next generation of athletes. Over the course of eight years, she guided young female hockey players to reach elite levels, including collegiate and Olympic competition. This experience shaped her belief that true success comes from a combination of discipline, empowerment, and a clear vision.

Today, Kelli is the owner of a thriving CrossFit Affiliate in Andover, MA, where she leads a community of over 200 members. She is also the Director of Expansion & Development and partial owner of Spark Fitness and Tennis, a growing fitness organization with more than 2,000 members across two locations outside of Boston, MA. In both roles, Kelli blends expert coaching with an unwavering focus on mindset, leadership, and building lasting habits that translate beyond fitness into every aspect of life and business.

Kelli’s approach goes far beyond traditional fitness training—she’s a catalyst for personal and professional growth. She helps people shift their mindset, creating lasting change in how they approach challenges, work together, and perform at their best. Whether in the gym or in the workplace, Kelli teaches individuals to see obstacles as opportunities and empowers them to take ownership of their health, their mindset, and their success.

Her mission is simple: to meet people where they are, challenge them to push their limits, and help them choose to live a life that’s bold, purposeful, and fulfilling. By helping employees develop the habits, mindset, and resilience they need to succeed, Kelli drives positive outcomes that impact both individual well-being and bottom-line performance.

With Kelli and our team, your business gains more than just a coach—you gain proven leaders who will inspire your team to perform at the highest level, both in the workplace and in life.