Indonesian Combinatorial Society (InaCombS) was established on 6 May 2006 with the objectives to facilitate, encourage, foster and cherish combinatorics development as well as to improve to role of combinatorics to other disciplines.

InaCombS is a professional organization that is scientific, non-profit and independent. This organization is a forum for combinatorist and other enthusiast who want to develop combinatorics in Indonesia. Since the establishment, InaCombS has at least 80 members.

The headquarter of InaCombS is located in Bandung.