Kalodion is marked by the entrepreneurial expertise of David Zimmer. As the founder of the company inexio he has created a „Unicorn”, a start-up at least worth 1 billion. David Zimmer has built up inexio and for further growth transferred it to the hands of some investors. He is probably the only entrepreneur who founded a company in the sector of the telecommunication infrastructure industry and at the same time led it to such an enormous success.