Rudolf Ohnesorge (pictured), a former managing partner of Germany-based industrial conglomerate Siemens’ growth capital investment unit, has joined Italy-based environmental-focused private equity firm Ambienta.

Ohnesorge, now an investment partner at Ambienta, which raised €217.5m ($250m) for its first fund, said: “I am opening the German office for Ambienta.”

Between 2008 and 2012, Ohnesorge worked within Siemens Financial Services’ €800m private equity group on setting up a growth capital programme investing into small and mid-sized industrial companies primarily in Europe and…