Eldex Laboratories, Inc. is a privately held company located in Napa, California. The company focuses on developing instrumentation for analytical chemistry and chemical process control. Eldexs primary vision is to manu......Eldex Laboratories, Inc. is a privately held company located in Napa, California. The company focuses on developing instrumentation for analytical chemistry and chemical process control. Eldexs primary vision is to manufacture instruments which both meet the industry’s exacting requirements and can be purchased at reasonable prices.