Precious metals are priority at Heraeus Holding. The family-owned company processes precious and specialty metals into products used in the aerospace, automobile, chemical, electronics, and pharmaceutical industries. Among Heraeus Holding's 100 other subsidiaries and affiliates are Heraeus Dental, Heraeus Dental, Heraeus Quarzglas (equipment and optics made from quartz glass), Heraeus Electro-Nite (temperature sensors used in the steel and auto industries and appliances), and Heraeus Noblelight (infrared, ultraviolet, and other specialty light sources). The founding Heraeus family owns the company.