Blade development and manufacturing firm Euros Group is based in Berlin and has about 20 technical experts, new owner TPI stated.
Financial terms of the transaction have not been disclosed.
Ramesh Gopalakrishnan, TPI’s chief operating officer, said the purchase would allow the US firm to apply "technical know-how in blade engineering and mould design... on a broader scale".
Senvion has owned blade manufacturer Euros Group since 2016.
It is believed Senvion is in discussions with interested parties about finding an investor, or possibly a buyer, as it seeks to stabilise the company.
Windpower Monthly explored Senvion’s future options this week.