The Team
Who We Are
Jason Rosenberg
Co-Owner
Hi, I’m Jason Rosenberg — a proud Chicagoan, lifelong fitness enthusiast, and Co-Owner of Dream Team Group Fitness right here in Jefferson Park. At Dream Team, my goal is simple: to help build a fun, welcoming space where people can come together, get stronger, and feel their best.
When I’m not cheering on our amazing members, you’ll find me helping home sellers and buyers all across Chicagoland. With 24 years of experience and over $100 million in real estate sold, I’ve built a reputation for delivering results — and saving my clients thousands — through my innovative, low-commission model and creative marketing strategies.
Whether it’s fitness or real estate, I’m passionate about helping people reach their goals and enjoy the journey along the way.
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312.882.9797
Mathew Kline
Co-Owner/Personal Trainer
Hi, I’m Mathew Kline — Co-Owner and Lead Personal Trainer at Dream Team Group Fitness in Chicago’s Jefferson Park neighborhood. I’m a Certified Personal Trainer with over 17 years of experience in the fitness industry, and I’m passionate about helping people build strength, confidence, and long-lasting healthy habits.
I believe workouts should be fun, effective, and designed around each person’s individual goals. Whether I’m leading a high-energy group class or working one-on-one, my goal is to make sure every member feels supported, motivated, and proud of their progress.
At Dream Team, we’ve built more than just a gym — we’ve built a community where everyone is encouraged to show up, give their best, and leave feeling amazing.
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708.254.8357
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