Innovation in motion

Founded in 1998, TM4 pioneered the electric propulsion system technology developed by Hydro-Québec’s renowned research center (IREQ). Today, TM4 provides its customers with distinctive expertise in electric drive systems.


TM4 provides its customers with distinctive expertise in leveraging its permanent magnet motors, power electronics and control technology.

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Manufacturing facilities

Located in Boucherville, Canada, our facilities are equipped for an annual output of up to 10,000 systems (motor, inverter, VMU). Moreover, our independent prototyping installations allow us to tailor to specific customer requests.

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Testing facilities

TM4’s facilities allow for testing of electric and hybrid motors. State-of-the-art equipment permits testing and validation of any type of electric motor.

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Our team

TM4 employs over 300 specialists worldwide and in each of them thrives a restless perfectionism and the passion to push technology to its limits and beyond.

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Joint venture

Prestolite E-Propulsion Systems (Beijing) Limited (PEPS) is a sino-foreign equity joint venture between TM4 inc. and Prestolite Electric Beijing Limited (PEBL).

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