The Amazon roll-up play — where one company creates economies of scale by buying up and consolidating multiple smaller third-party merchants that sell their goods via Amazon’s marketplace — continues to be a strong e-commerce trend, and in the latest development, one of the hopefuls in this space is announcing a major injection of capital to fuel its own place in the field. Elevate Brands, a New York- and Austin-based startup that acquires and runs third-party Amazon merchants, has picked up $250 million in funding, money that it will be…
