Organizations that I have experienced and have been helpful to me. May they be of service to you.
Learning / Experiencing
(I have attended training at all of these)
Gestalt Training Institute of Philadelphia
Mindfulness-Based Stress Reduction at Jefferson University
One Spirit Learning Alliance / One Spirit Interfaith Seminary
The Essential Experience http://www.ee.org
A workshop and community for empowered living.
Soul of Yoga http://www.soulofyoga.com
200-hour and 500-hour yoga teacher trainings
Laughter Yoga Club America: Laugh, Learn, Prosper! http://www.laughteryogaamerica.com/
Kirkridge Retreat and Study Center http://www.kirkridge.org/
Insight Meditation Society http://www.dharma.org/
Journeys of the Heart http://www.journeysoftheheart.org/
Non-denominational officiants creating custom ceremonies.
I am an officiant for Journeys of the Heart!