

From Fat to Fit - Accredited Personal Trainer and Online Nutritionist Bill Stumm Will Get You Ready for Stage or to Achieve Personal Fitness Goals.

MEET WILLIAM MICHAEL STUMM
Billt Fitness, founded by William Michael Stumm, is dedicated to helping individuals achieve their fitness goals through personalized training programs and expert guidance. Our mission is to empower our clients to transform their bodies and lifestyles, and we are committed to providing the highest quality training and nutrition consulting services.

BILLT FOR SUCCESS.

Mr. Shred
.jpeg)
Michelle O.

Anthony L.
"Working with Bill over the past few years has been the experience of a lifetime. I was able to get shredded for my wedding, as well as hitting all of my competitive athletic goals - including #1 ranked 4.5 tennis tournament player in the country, in 2025."
“Working with Bill is nothing short of amazing. He listened to my goals, tweaked my programs when I wanted more upper or lower body, and always checked in with me to ensure I was drinking my water and getting after a good workout. He’s knowledgeable, supportive, motivating, and overall the best trainer I have ever worked with.” -Michelle O
"Bill is hands-down one of the best trainers out there. He brings great energy to every session and genuinely cares about helping you succeed. He’s extremely knowledgeable, communicates clearly, and always knows how to adjust workouts to match exactly what you need.
Bill is a huge motivator who pushes you to work hard while keeping things fun and positive. He’s personable, easy to connect with, and makes every workout something you actually look forward to. If you want real results with a trainer who’s committed, adaptable, and truly invested in you, Bill is the one."


Billt Program.
Located in the Greater Philadelphia Area, our personalized training and nutrition guidance program(s) are designed to provide a feasible, health-related, and impactful goals for your fitness journey (via the help of accredited trainer/nutritionist William Stumm).. With top-of-the-line fitness plans and nutrition regimes, we ensure a rewarding experience for every client.
LOCATION
Springfield, PA.
Greater Philadelphia
Delaware County
OPERATING HOURS
MONDAY - SATURDAY
6:00AM - 9:00PM












.png)