Our Story

Who we are atThe Little Gym of Hatfield

After twelve years of practicing law doing commercial litigation, Bob Greenberg was ready to do something fun and more productive. In August of 1994, Bob opened The Little Gym of Newtown, PA, which moved to The Little Gym of Langhorne, PA in 2015. Since getting his first taste of The Little Gym magic in 1994, Bob has gone on to open: The Little Gym of West Windsor, NJ in 1997, The Little Gym of Cranford, NJ in 2001 which moved to The Little Gym of Scotch Plains in October 2016, The Little Gym of Hatfield, PA in 2004, The Little Gym of Summit, NJ in 2010 and The Little of Winchester, VA in 2013.

Teaching kids skills, building strong bodies and minds, and growing self-confidence is what it is all about. The Little Gym's non-competitive, curriculum based gymnastics program provides an outstanding foundation. The key to our success is finding, training, and maintaining the finest possible staff that love to work with children. Bob has two children, who attended The Little Gym and are now college graduates. He loves playing with his own kids and teaching yours. Please call the Gym nearest you for a Free Introductory Class and find your child's happy place!


Our Philosophy of Three Dimensional Learning

The Little Gym of Hatfield, our environment is fun, but our purpose is serious. That’s why we embrace a proprietary philosophy called Three-Dimensional Learning, in which physical activity is a conduit for nurturing your whole child. The Three-Dimensional Learning approach to skill development means that every class we offer fosters growth in three holistic dimensions—Brain Boost!, Get Moving! and Citizen Kid!.  Read on to see how each dimension of learning helps your child grow into a well-rounded, well-adjusted super kid.

Get Moving

Get Moving

Developing flexibility, strength, balance and coordination through varied physical activities

Brain Boost

Brain Boost

Nurturing listening skills, concentration and decision-making that benefits your child well beyond the gym

Citizen Kid

Citizen Kid

Promoting sharing, teamwork, cooperation and leadership through spending time with your kid’s friends and peers


40 Years of Serious Fun

An innovative educator, musician and kinesiologist, Robin Wes envisioned a nurturing place where children could explore their physical development, while also growing socially, emotionally and intellectually. He opened the first The Little Gym in 1976 in Bellevue, Washington and infused those early classes with the same positive, non-competitive spirit that characterizes us today. Forty years later, children at The Little Gym of Hatfield experience the benefits of Serious Fun.

We're proud of

Our Partnerships

We’ve teamed up with some of the most respected names in children’s toys and entertainment to enrich the experience of classes, parties, camps and more at The Little Gym.


The Little Gym is the exclusive childhood development center home to LEGO®-based activities. Look for special building experiences in “Let’s Build, Let’s Play” Parent/Child events, WonderKids Club, Awesome Birthday Bash parties, Camps and Parents’ Survival Nights!

Peppa Pig

The Little Gym and Peppa Pig have teamed up to create a one-of-a-kind Awesome Birthday Adventure for an oinktastic cause! On behalf of every party booked, The Little Gym will be making contributions to support The Muddy Puddles Project’s mission to end childhood cancer. Jump on over…It’s going to be a muddy good time!

Giving Back

The Little Gym Big Hearts has partnered with SeriousFun Children's Network, a global community of camps and programs that serve children coping with serious illnesses and their families.

Toys & Music
The Little Gym Active

Toys & Music

The fun doesn't have to stop when class is over! Bring Serious Fun home with The Little Gym Active Toys & Music!

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