StrÃ¶er SE & Co. KGaA is a multi-channel media company that offers individualized communication solutions. It operates through the following segments: Content Media, Direct Media, OOH Media. The Content Media segment provides digital advertising spaces in the internet, on mobile terminals, and in the public area as public video network. The Direct Media segment includes the dialog marketing and product groups. The OOH Media segment offers advertising services such as street furniture, billboard, transport, and outdoor advertising media. The company was founded by Udo MÃ¼ller and Heinz W. StrÃ¶er in 1990 and is headquartered in Cologne, Germany.