Live feed07:45:00·365dPRReleasevia QuantisnowZenaTech Expands Drone as a Service (DaaS) for Government and Defense, Signing an Offer to Acquire a Virginia-Headquartered Tri-State Land Survey and Engineering Firm Serving Major US Federal ClientsByQuantisnow·Wall Street's wire, on your screen.ZENA· ZenaTech Inc.Technology