The practical application of numerical simulation dates back to the 1970s. That’s when the first commercial programs came onto the market. These included ANSYS, which was developed by John Swanson. The acceptance of numerical simulation in the industry grew strongly in the 1980s and drove John Swanson to seek engineering firms across the world, who would market ANSYS on-site on behalf of his company, Swanson Analysis Systems, Inc. (SASI). The partners served as ANSYS support representatives. One of the partners was Günter Müller, who in 1982 went on to become a freelancer in this profession. He used to travel internationally, working on behalf of SASI to acquire and support customers across Europe. In 1985, John Swanson established the network of ANSYS Support Distributors. The partners now had to buy the software from SASI and resell it to customers. This business model led to the founding of CADFEM GmbH. CADFEM was granted exclusive distribution rights for Germany, Switzerland, Liechtenstein, Austria, and in early 1990, the Czech Republic, Slovakia, Poland, and Russia.