The international Local Organisation of the organization began in 1923 with the Winnipeg Board of Trade's becoming the first Junior Chamber outside the United States. By 1928 the idea of an international body crossed the Atlantic Ocean to England.
In 1940 a resolution was passed by the United State Junior Chamber approving a program to further mutual interest among countries in Central and South America. This lead to the establishment of Junior Chamber in Mexico City, El Salvador, Honduras, Nicaragua, Costa Rica and Panama City in 1943.
The realization of Junior Chamber International had begun. In December 11 1944, first International Conference was held in Mexico City. Raul Garcia Vidal of Mexico was elected the first President. The countries which formed Junior Chamber International were: Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama and the United State of America.
Junior Chamber International has grown to nearly half-a-million members between the ages of 18 and 40 in more than 125 countries and over 5,000 communities around the world today.