Sigma Announces Marcello Gallo as Chief Revenue Officer, Sean Hughes as SVP of Sales for the Americas, and Appoints Chad Peets to the Board of DirectorsContributed by: Business WireLogoImagesMarcello Gallo, Chief Revenue Officer, Sean Hughes, SVP of Sales, Americas, and Chad Peets, member of the Board of Directors (Graphic: Business Wire)TagsData ManagementApps/ApplicationsTechnologyMobile/WirelessSoftwareNetworksInternetSigma