Production & StrategyEvent ManagementEvent Tech - GROHEOctober 30, 2015American Express partnered with several agencies to present a hydro-interactive experience at its pre-U.S. Open tennis event, "Rally on the River," on August 26 at New York's Pier 97.Photo: Brad Barket/Getty ImagesLatest in Event ManagementIndustry InsidersFirst Step of Event Planning: Understand Your Event Target AudienceIndustry InsidersBest Practices for Working With a Technical Production PartnerIndustry Insiders4 Ways a Payroll App Can Make Your Life EasierIndustry InsidersLess Planning, More Party With Lightwave Event ArtistsRelated StoriesEvent ManagementEvent TechnologyEvent ManagementTechnologyEvent ManagementEventPro SoftwareEvent ManagementEventPro Software