Arbe Robotics

They are developing a lower-cost, high-resolution SAR (Synthetic Aperture Radar) and SLAM software to enable “4D imaging”.
This sounds like it would produce 3D images like military-grade SAR, with software to recognize and tracks objects through time.
At their booth they were just showing a marketing video (Fig. 1).
Website: www.arberobotics.com

There are other competitors in this space, such as Echodyne.

Fig. 1:

Fig. 2: Prototype sensor on top of testing vehicle in Las Vegas. Nikkei Electronics

RoyalTek

They were showing their automotive RADAR products and 360 degree camera system with ADAS (Advanced Driver Assistance System).
Website: www.royaltek.com

Fig. 3:

Fig. 4: