Member List Go back to directory. Add to Address Book. David P. Cannon Keystone Stabilization, LLC Work 4091 Saltsburg Rd. Suite E Murrysville PA 15668 work Cell Phone: 412.999.1649cell Work Email: dpcannon@keystonestabilization.comINTERNET Biographical Info Board of Directors Term Expires: 2023 Categories: Board of Directors, Members Updated 9 months ago.