eMoSys

eMoSys is a German company that develops high performance electric motors and electric drive systems. It designs motors to customer requirements. Its core skill is high power density at low weight. Its power electronics are developed in-house.

The company offers custom electric motor development for main and auxiliary drives. Its eDrive technologies include BoostDrive AIR and BoostDrive SPEED. It also builds integrated power electronics and software for high and low voltage drives. The company says these drives are quieter, smaller and more efficient.

For aviation, eMoSys develops electric propulsion for aircraft, drones and eVTOL vehicles. Its website names heavy drones, eVTOL and eCTOL aircraft. It also offers actuators and auxiliary drives. Motorsport and automotive drives are other areas of work.

The company's inverters cover applications from 48 volts to 1,200 volts. The website says a 1,000 volt inverter with housing for a 250 kW machine weighs less than 2 kg. It compares this with more than 9 kg for competing units.

Testing is a major service. The company tests the efficiency and safety of high power and traction drives under real conditions. Its test bench in Starnberg has an electric load machine rated at 600 kW and 16,500 rpm, with DC supply of 0 to 600 volts. A second bench covers up to 1,000 volts and 25,000 rpm.

Power electronics and software follow a V-model development process. The team works on embedded hardware and software, model based development, FPGA and communication protocols such as CAN, SPI and Ethernet. Its ESD protected labs test components for heat, leakage and electromagnetic compatibility.

The company describes its values as pioneering spirit, expertise and transparency. It has a transparent quality policy and says it is a climate neutral company. It is recruiting engineers for projects in electric mobility and aviation. The company's news pages also cover its Scale Up workshops and a talk on high efficiency electric propulsion for heavy drones, eVTOLs and eCTOL aircraft at AIRTEC 2026.

Services

• Electric motor development
• BoostDrive AIR
• BoostDrive SPEED
• Integrated power electronics
• Inverters
• Drive software
• Motor testing
• Actuators and auxiliary drives
• Motorsport motors
• Aviation propulsion