Alternative investments like manufacturing financing, real estate debt, and loans have historically been the stuff of hedge funds and large private equity firms. But Milind Mehere, cofounder of Yodle, an internet marketing and advertising company that was acquired by Web.com for $342 million, wants to change that. That’s why in 2015 he teamed up with Wall Street veterans Michael Weisz and Dennis Shields to found YieldStreet, a New York-based digital wealth management platform that lets customers invest in asset classes at minimums as low as $5,000.