Swami Vivekananda - 5 years: July 1893 to December 1896 and July 1899 to December 1900
Swami Saradananda - 2 Years: March 1896 to January 1898.
Swami Abhedananda - 25 years: August 1896 to November 1921
Swami Turiyananda - 3 years: July 1899 to July 1902
Swami Trigunatitananda - 12 years: January 1903 to January 1915