INSC has four officers: Chairman, 1st Vice-Chairman, 2nd Vice-Chairman and Secretary/Treasurer. In addition, to give the necessary material support to the organization, the Chairman appoints an assistant from his Society to perform his secretarial activities.
The officers are elected by majority vote of the members of the Council. The term of office is two years, starting on January 1st of the year following the election.
The following tables list the INSC officers since its creation:
| Post | 1997 – 1998 | 1999 – 2000 | 2001 – 2002 |
| Chairman | Manuel Acero (ENS) | Gail de Planque (ANS) | Chang Kun Lee (KNS) |
| 1st Vice-Chairman | Gail de Planque (ANS) ** | Chang Kun Lee (KNS) | Jorge Spitalnik (LAS) |
| 2nd Vice-Chairman | Chang Kun Lee (KNS) | Jorge Spitalnik (LAS) | Agneta Rising (ENS) |
| Secretary/treasurer | Jorge Spitalnik (LAS) | Konrad H |
| Post | 1991 – 1992 | 1993 – 1994 | 1995 – 1996 |
| Chairman | Jean van Dievoet (ENS) | L.Manning Muntzing (ANS) | Mishima Yoshitsugu (AESJ) |
| 1st Vice-Chairman | L.Manning Muntzing (ANS) | Mishima Yoshitsugu (AESJ) | Manuel Acero (ENS) |
| 2nd Vice-Chairman | * | Manuel Acero (ENS) | Robert Long (ANS) |
| Secretary/treasurer | Jorge Spitalnik (LAS) | Jorge Spitalnik (LAS) | Jorge Spitalnik (LAS) |
| Chairman’s secretariat | Peter Feuz (ENS) | James Toscas (ANS) | Endo Yuzo (AESJ) |
| Post | 1997 – 1998 | 1999 – 2000 | 2001 – 2002 |
| Chairman | Manuel Acero (ENS) | Gail de Planque (ANS) | Chang Kun Lee (KNS) |
| 1st Vice-Chairman | Gail de Planque (ANS) ** | Chang Kun Lee (KNS) | Jorge Spitalnik (LAS) |
| 2nd Vice-Chairman | Chang Kun Lee (KNS) | Jorge Spitalnik (LAS) | Agneta Rising (ENS) |
| Secretary/treasurer | Jorge Spitalnik (LAS) | Konrad H
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