About Us

Founded by Bill Coller and Sharon Siubis, the I.S.C.’s mission is to provide intensive and in-depth training for the Intuitive and Mediumistic unfoldment and growth. Our goal is for each person to find and achieve their individual potential through classes, ongoing seminars, and cross training with Swiss/German Development groups. A combination of solid knowledge, integrity, dynamic teaching styles and years of experience allow the student an unprecedented foundation in their individual path of learning.
Inner Spiritual Center Provision/Disclaimer
Please note that in any mediumship work, there is evidence of information, but there may also be “message” information given to the client/recipient during a personal or public session. As the evidence part of mediumship communication stands on its own merit, the message is only an opinion from the communication. It is then one’s own personal responsibility as to the choice that is made based on this message information. ISC holds no responsibility for personal choice.