Bayern Munich have announced that Allianz have acquired an 8.33 per cent stake in the club.
Allianz, which already holds the naming rights to the Bundesliga outfit's stadium, has invested €110 million [£90m] in the reigning European champions, thus becoming the third Bavarian company after Adidas and Audi to agree such a deal.
"Today is a big day for FC Bayern," said Bayern president Uli Hoeness. "The club’s executive committee and advisory committee approved this decision unanimously.
"With the three Bavarian companies Allianz, Adidas and Audi, FC Bayern has a Triple-A of partners. It is a dream and we are very proud, because it shows the strength of this club."
Bayern have also revealed that the €110m gained from the deal will be spent on the club's remaining obligations on the Allianz Arena, thereby making the stadium debt free, and on the planned reconstruction of the Bayern youth facility in Munich.
Following the Allianz deal, 75 per cent of Bayern's stock remains in the hands of the club's members, more than fulfilling the obligations of all Bundesliga clubs to have at least 50% plus one share under the ownership of fans.