Companies How The Progressive Corporation (PGR) & Amazon.com, Inc. (AMZN) Used Instant HTML5 Gaming For Marketing: Tresensa CEO Rob GrossbergBy Solon Harmony B. DolorJuly 7, 2014 The Progressive Corporation (NYSE:PGR) and Amazon.com, Inc. (NASDAQ:AMZN) were two companies mentioned by Tresensa CEO Rob Grossberg who are taking…