There is hardly a system today that does not rely on GPS in some way. However, when GPS was first designed decades ago, it was not architected to meet the current requirements. Signals compromised by scattering, jamming, and spoofing. Current applications require much greater accuracy/reliability/security in commercial applications. In military application it is mission critical to have a trusted, reliable and secure PNT solution. Our escPNT⢠provides resilience PNT in GNSS degraded environment by utilizing a patented, multi-sensor, tightly-coupled sensor fusion algorithm. Unlike some PNT with less capability, our solution is low size, weight and power (SWaP), and VERY affordable compared to other products. This makes escPNT⢠the perfect solution across all applications from small UAS, autonomous ground vehicles, precision weapons, personnel/dismounted, to maritime and aviation. Our Direct to Phase II proposal will provide additional enhancements to our already proven product for additional resiliency in total GPS denied environments. These enhancements include: 1) Leverage of non-positioning (communication) low-earth orbiting (LEO) satellites (i.e. OneWeb, Iridium, GlobalStar, Starlink, etc.) as alternate sources of positioning data; 2) utilization of these additional signals to develop a more robust capability to detect and mitigate GNSS spoofing.