Porsche has taken a majority shareholding in the Manthey team that represents the German manufacturer in the GTE Pro class of the World Endurance Championship.
It has purchased 51 percent of Nurburgring-based team established by former racer Olaf Manthey, with which it has long-standing links.
Porsche Motorsport boss Hartmut Kristen said: "Olaf's son died in an accident a few years back and his daughter has no interest in taking over the company, so he approached us a few years ago and asked if we were interested in taking more of an involvement.
"We worked through the opportunity and reached an agreement that is only going to make life easier for everyone and keep a great team alive for the future."
Manthey Racing was established in 1996 for twin assaults on the Porsche Supercup and the Porsche Carrera Cup in Germany, going on to win the former for four consecutive years with Patrick Huisman in 1997-2000.
The team ran one of two development 911 GT3-Rs at the 1999 Le Mans 24 Hours prior to the 996-shape car's release to customers and has maintained strong links with Porsche Motorsport since.
It has claimed victory in the Nurburgring 24 Hours on five occasions with different of levels of support from the factory.
Under the Porsche AG Team Manthey banner in 2013, it mounted the first world championship campaign by a factory Porsche team for more than 20 years in the WEC with the new 911 RSR and will return to the series in 2014.