Welcome to the Green Crescent Of Simi Valley aka Islamic Society Of Simi Valley (ISSV). All Muslims are invited to attend five daily prayers. ISSV is committed to provide quality services to all members of our community. In return we ask our members active participation and contribution in this time of growth and progress. Islamic Society Of Simi Valley is a non-profit, tax exempt (501c) organization. We rely on contributions from the community members to support the center.