Welcome to Green Tree School & Services

Green Tree School & Services (GTSS) is a nonprofit, state-licensed agency that provides education, therapeutic and clinical support to children ages 5-21 with Autism Spectrum Disorder and Severe Emotional Disability.

Contact Us

We believe that regardless of their unique challenges and abilities every child and young adult should have the opportunity to learn. Contact us today.


Working at Green Tree School & Services may be one the most rewarding positions you will ever hold. Check out our employment opportunities.


At Green Tree School & Services, all students are instructed based on their IEP goals and the appropriate state standards as defined by the Pennsylvania Department of Education.

Our Staff

The Green Tree School & Services staff is committed to providing uninterrupted instructional time, in which students are actively engaged in the learning process.

We are currently hiring!

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Learning without limits

Serving children with unique challenges and abilities since 1957.