The first known wielder of the Senzogan, was none other than the Shinju — aggregate of all tailed beast. Later down the line, it is shown that, Kaguya, had also gained the eyes, which she used to cast the Infinite Tsukuyomi. Later, right before Naruto's — what seemed to be — death, he met Hagoromo, also has a marking on his forehead resembling the eye, yet it is unknown if he ever had gained them.