Additional background from the submitter (Score 2, Informative)

The above AC has it right on the money. First, acquiring company is giving us access to a large base of installed clients interested in our application. Furthermore, to answer the parent, we (the quints) do receive a cut of the revenue we bring in from new installations of our software,as such we are not sacrificing all of our sales (and profit) to the mother company. Lastly, the scenario of being fired on day one is trumped since we all have employment contracts of various minimum durations.