John Siefert is chief marketing officer of STYR Labs, where he manages go-to-market strategy, app content and customer engagement. Prior to joining STYR Labs in 2017, he was president of the Global Health and Nutrition Network at Informa, where he was responsible for media brands and events in North America, Europe and Asia. Siefert was CEO of Virgo LLC from 2010 to 2014. He also spent 15 years with United Business Media, where he was the senior vice president of the InformationWeek Business Technology Network.