Walaris (formerly known as Tarsier Systems) is a company that develops optical-based drone detection and tracking systems. It offers AirScout, a signal processing and sensor fusion software platform that uses hardened AI to fuse and process data from sensor arrays; AirScout Sentry, an electro-optical and infrared sensor (EO/IR)-based system that scans airspace for unmanned aircraft systems (UAS) threats; and AirScout Verify, a system that autonomously acquires, classifies, and tracks UAS.