I am aware of a few orgs that license interesting software R&D often with engineering support, sometimes with an equity component. Another variant is the R&D holding company that creates separate companies to commercially exploit the R&D in different parts of the public or private sector. Most such R&D orgs are very low-profile, they usually don't have an internet presence. Many use few or no patents these days, those economics don't make sense unless the business is largely owned by lawyers, which creates a different kind of company (much closer to patent trolls).

It is a bespoke kind of business, tailored to the specific technology and investment network of the people involved.