Heavy Water Aero
https://heavywateraero.com/Technology driven aeroponics
Current indoor hydroponic and aeroponic systems are expensive to set up, difficult to maintain, and less efficient than they could be. They also lack batteries-included and robust monitoring capabilities.
Heavy Water Aeroponics is building simple, cheap, and scalable high-pressure aeroponic grow setups for commercial use.
Angel list: https://angel.co/company/heavy-water-aero
Member count: 1-10