Investors like what they see with Downstream's traction. The Seattle startup that helps brands with their Amazon advertising strategies has reeled in an additional $2 million, bringing total funding to date to nearly $4 million. Existing firms including Haystack and Founders' Co-op "doubled down" on their previous investments, said Connor Foley, co-founder and CEO at Downstream. Revel Partners, Math Capital, and Tuesday Capital also invested. Downstream is among a bevy of startups building software that helps vendors, sellers and agencies manage their marketing investments on Amazon, which has seen advertising spend on its e-commerce site skyrocket in recent years. Brands... Read More