Felix Li Tai Ho Class of 1974 SJIOBA President – 1994 to 1997
George Thia Peng Heok Class of 1965 SJIOBA President – 1997 to 1999, 2001 to 2003
Victor Olsen Class of 1971 SJIOBA President – 1999 to 2001
Michael Sng Beng Hock Class of 1975 SJIOBA President – 2003 to 2005, 2005 to 2007
Thomas Leong Kok Fann Class of 1974 SJIOBA President – 2007 to 2009
Philip Seah Cheng Chua Class of 1971 SJIOBA President – 2009 to 2011