The US based company ROFIN-SINAR Technologies Inc. develops, manufactures and sells laser sources and laser-based solutions for industrial material processing.

In addition, in July 2001, RSTI was listed on the German "Prime Standard" segment of the Frankfurt Stock Exchange under the ISIN US7750431022.

[3] The company was founded 1975 in Hamburg, Germany as "SINAR Laser Systeme Verkaufsgesellschaft mbH".

By taking over the British enterprise Rofin, the company changed its name to ROFIN-SINAR Laser GmbH.

[4] In 2015, Rofin came under significant pressure by an investor, SilverArrow Capital, to exchange the companies independent directors based on questions on compliance and below average management performance.