[Ekaros]

Could there also be 7) Can I sell or offer something to this new company and prop up my other parts of my portfolio?

[nivertech]

aka "loss leader" or "supporting the ecosystem"

e.g. VCs invest in startups commercializing open-source foundational/infrastructure projects not only for the financial RoI, but also because it helps their portfolio companies succeed faster while maintaining a smaller headcount or spending less on non-core R&D.