The company operates in two segments, Investment for Own Account and Publishing. The company was founded in 1971 and is based in Dusseldorf, Germany. It holds investments in other companies, as well as publishes stock market journals. Das Unternehmen wurde im Jahr 1971 gegründet. The almost obsessive focus on flush toilets throughout the world is causing the problems of international sanitation to remain unresolved. In fact, compost toilet systems yield a dividend — humus, which allows such a sanitation system to yield a net profit, rather than being a constant financial drain (no pun intended).