[blahi]

There's Pyramid Analytics which is officially endorsed by Microsoft as "Power Bi onprem" and present on the Power BI's homepage.

[greggyb]

Pyramid is the third party I mentioned in my post. It is not a Microsoft product, as I mentioned in my post.

Pyramid offers .pbix file hosting and web rendering. It does not offer the Power BI portal that is a cloud offering from Microsoft. There is a big difference between these things.