Investing in a company that is partnered with a company that deals in haraam

I had a question regarding finance in islam, specifically investing in cryptocurrencies. I understand that it is only halal to invest in companies that do not deal with any haram acts such as interest or alcohol. However, I was curious to know, if company A, for example, is completely halal in its goals but is partnered with company B that is not halal such as a banking company, is it still halal to invest in company A?

I had a friend call a local sheikh who stated that it is halal to invest in company A since the goal of the company itself, for example to build an education platform, is completely halal even though company A is partnered with company B that is not halal. I just wanted to verify this information with another sheikh to put my mind at peace since I do still have some small amount of doubt.