Douglas Rosenstein vs William Hausberg compared for founders deciding who to pitch. Stage focus, check size, and sector fit compared side by side.
Douglas Rosenstein is a family office based in Darien. William Hausberg is a private equity based in Darien.
Investors like Douglas Rosenstein · Investors like William Hausberg · Douglas Rosenstein co-investors · Full investor directory
The Startup Fundraising Platform
Raise funds for your startup
Find the right investors and get real replies — instantly, powered by AI.
Takes 30 seconds · No credit card · Cancel anytime
Slide-by-slide guide