Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company in the business areas of precious metals, dental health, sensors, quartz glass and specialty lighting sources. With revenues of ?6.4 billion and 9,000 employees worldwide in over 100 subsidiaries and associated companies, Heraeus has stood out for more than 150 years as one of the leading companies involved in precious metals and materials technology.