HySys GMBH is an old German Aerospace corporation. They had their hand in some top-of-the-range aircraft, especially in the lead up to the Resource War. During that war, they diversified into the creation of weapons and pharmaceuticals in the hope of sustaining the company afterwards.
What resulted was an extremely powerful mega corporation that offers colonization packages to governments; researches and explores new planets and systems in the search of rare resources; and maintains quite a scary presence on the edge of known space. It is often better to allow HySys to expand their enterprise and attempt to join, than it is to beat them to the punch. Many a smaller company, independent group, or local government have disappeared when attempting this.