JACO (The Japan Association of Charitable Organizations) is a registered charity (number A001132) which gives voice and support to civil society.

JACO, established in 1972, is the largest umbrella body in the Public Interest Corporation (PIC) sector of Japan with 1,550 dominant organizations in membership at present, and is fulfilling its mission by undertaking a wide variety of activities covering a diverse range of civil society organizations. The new PIC law went into effect in December 2008, and JACO was recognized and granted its new legal status as PIC by the Public Interest Commission as the first one under the new legal scheme.

Their new goal is to promote and support public benefit activities operated by PICs and contribute further development of whole the third sector in Japan. To achieve this goal, they are going to have three main programs:
1. Dissemination and enlightenment program on civil public benefit activities
2. Operational Support and capacity development program for civil public benefit activities
3. Promotion of research and advocacy campaign program on civil public benefit activities, organizations and systems