Hours Of Operations Matrix Systems California Grass Valley Matrix Systems Hours of Operation and Locations in Grass Valley, CA 4.9 - 112 votes 1 Locations in Grass Valley www.matrixsystem.com Matrix Systems Hours Category: Electronics Matrix Systems - Grass Valley, CA 95945 15291 Lakewood Ln(530) 273-5474 View Store Details Explore Grass ValleyView More Apparel KmartH & MCarharttBig 5 Sporting GoodsJCPenney Sports Big 5 Sporting GoodsVansColemanOut of the Blue Jewelry Antique Gallery Recommend For You Ae Inc Translations Synergy Computer Systems Element Box Incorporated Systech Solutions Digimax Multimedia Incorporated Complete Computer Services Adventus Technology Congruent Software Incorporated Syntonic Systems Media Audit