1968

Ing. Ismael Montes de Oca

1970

Ing. Ismael Montes de Oca

1973

Ing. Álvaro Fernández C

1974

Ing. Álvaro Fernández C.

1976

Ing. Álvaro Fernández C.

1978

Ing. Guillermo Cortez

1984

Dr. Fernando Urquidi B.

1986

Ing. Lorgio Ruiz

1990

Ing. Lorgio Ruiz

1992

Ing. Edgar Vargas C.

1994

Ing. Edgar Vargas C.

1996

Ing. Edgar Vargas C.

1998

Ing. Oscar Ballivián Ch.

2000

2002

Ing. Enrique Arteaga R.

2004

2006

Ing. Dionisio Garzón M.

2009

2010

Ing. Dardo Barrientos T.