Yehuda Glick, an extremist settler and activist for Israeli sovereignty of the compound, was among the group, the foundation said.
The group toured the mosque and received talks on the possibility of building a Jewish temple on the compound, it added.
The compound, which sits just above the Western Wall plaza, houses both the Dome of the Rock and Al-Aqsa mosque and is the third holiest site in Islam.
It is also venerated as Judaism’s most holy place as it sits where Jews believe the First and Second Temples once stood. The Second Temple was destroyed by the Romans in 70 AD.
According to mainstream religious leaders, Jews are forbidden from entering for fear they would profane the “Holy of Holies” the inner sanctum of the Second Temple.