Czechoslovak Tesla was shared brand of various state-owned electronics companies in the communist era (the companies in fact didn't have common parent company).

Czechoslovak Tesla was shared brand of various state-owned electronics companies in the communist era (the companies in fact didn't have common parent company). Several of such companies are still in business. In particular the semiconductor manufacturer Tesla Roznov and later TESLA SEZAM is today a subsidiary of ON Semiconductor (anecdotally they manufacture the power transistors used in Tesla Motors drive units, but I have no way to verify that claim).