January 9, 2023 PSP Investments promotes Duff and Marc to SVP roles Posted By: Duff joined PSP Investments in September 2016 while Marc came on board in August 2015. Share A– A+ 100% To read this article, you need to sign in. You should only be asked to sign in once. Not the case? Click here New to PE Hub? Register now to read this article and more for free.