Dr. Arati Prabhakar has to be lauded for leading the way US government entities evolve with the times. She had a distinguished leadership tenure at NIST and was responsible for increasing its outreach with industries in my opinion.
Regarding DARPA funding GaN research in RF and power devices, here is a link that lists companies funded:
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.