MagniX makes electric motors, and connected controllers. Based in Everett WA north of Seattle.
Involved with Harbour Air’s pandering to its gummint customers, last I heard (there was a change). HA’s Beaver has flown several flights, general status is on HA’s web site but no technical details, they are preparing a second aircraft in configuration for certification. (Based at YVR, there is engineering and fabrication support in the area.)
‘Aero TEC’ - you have to spell precisely as there are several with or without an h - marketing people are fools, is an established consulting outfit in Seattle and Moses Lake WA, incudes flight testing and now light manufacturing capability.
Leeham News blog had articles by Bjorn on hybrid and electric aircraft. Battery weight is a big problem, last i paid attention he seemed to be keen on hydrogen which requires huge investment in infrastructure.