What is "sinnerschrader"

SinnerSchrader (also known as the SinnerSchrader Group) is the fourth largest digital marketing and advertising agency in Germany. It operates several subsidiaries that provide specialized services, such as mobile app development, e-commerce websites, online advertising and marketing communications.

SinnerSchrader was established in 1996. The company grew quickly and went public on the German Stock Exchange in 1999. It experienced losses after the dot-com bubble ended before rebounding in 2004 to 2005. Several of its subsidiaries were created or acquired between 2010 and 2013.