ZenaTech (Nasdaq: ZENA) opens D.C. office to grow US defense business and federal access ZenaDrone opens a Manassas, Va office to engage US defense and federal buyers, complementing its Mesa, Ariz. expansion and 40 kg-payload UAV production. stocktitan.net stocktitan.net / feeds stocktitan-net / / #money / / 9 days 9d Share