Is it permissible in Islam to obtain Islamic Home Finance from a lender whose equity may not be from Halal sources?

Asalaam-o-Alaikum,

I have come across an Islamic Home Finance option on your ifg website (refer below 1st link). This is in particular about StrideUp, whose own website states that they are supported by some of the world’s largest institutional investors such as “ARAVenn”, “PICUS Capital” and “cur8 capital” (refer below 2nd link).

My question is, if the equity used here by StrideUp is coming from sources that may not be Halal, then is it permissible/Halal to use their Islamic Home Finance products (such as “Iman”)?

https://www.strideup.co/about