Yeah those groups are very active in Germany, but have you heard about the Al-Zein, Miri and Abu-Chaker clans ? They are Mhallami clans. In Germany they are often called 'Lebanese Kurds' or 'Arabs', but in fact the Mhallami are neither of those. They are mostly Islamicised Assyrians with Kurdish and Arab admixture. So they are a pretty distinct group of people. They immigrated from Lebanon to Germany. Like the Turkish or Albanian crime clans they have organized family-based criminal gangs. For instance, the Miri-clan alone makes about 50 million euros each year in the city of Bremen alone. Al-Zein was also named the 'druglord of Berlin'.
Some links in German (I hope you can read them :D) :
Al-Zein Miri clan clans 
