The phrase "to invest with" means to provide someone or something with an opportunity, resources, or support in order to achieve a desired outcome. Full definition
In fact, there are many ways to solve this problem, but I will show you one clever way of investing with only one hundred dollars. (wealthlift.com)
We specialize in investing with mutual funds, index funds, socially - responsible funds, and stocks. (tginvesting.com)
I don't think that I have ever read one chapter, blog post or even word about the responsibility you take on when investing with money that is not your own. (biggerpockets.com)