The area of Little Tokyo played a primary role in restoring Japanese Americans' lives. Their lives begun to stabilize, various organizations were formed to protect Japanese Americans' rights and promoted their economical positions as well. On that occasion, Los Angeles Japanese American Association was founded to represent the community of Japanese Americans in September 1947. This association became regarded as an authoritative body in the community. Little Tokyo Business Association, on the other hand, was dealing with local development and vitalization. These two organizations were merged into Japanese American Chamber of Commerce of Southern California which was licensed as Japanese Chamber of Commerce of Southern California by the government of the State of California in 1951.

From its foundation, JCC as a pivotal body in the community has had two major activities such as social work and the promotion of Japanese American commerce and industry. However, Japanese Americans being a minority group in American society, JCC could not but devote its major time to social work.

1958:
Founded JCC Scholarship which became Japanese American Treaty Centennial Scholarship Fund, Inc. in 1960 and to present

1959:
Relief activities for victims of Isewan Typhoon

1980:
Cooperated in the completion of Japanese American Cultural and Community Center

1983:
Cooperated in building Japan America Theatre

Current:
JCCSC Members 263 (Corporate: 157 Individual: 106)

Manages to deliberate and select recommendees for Jokun (Medals by Japanese government) candidates with other principal organizations in the community for the spring and autumn of every year.

Hosts Jokun recognition banquet for the awardees annually.

Hosts, sponsors and supports different kinds of friendship enhancing parties, anniversary celebration parties, etc. (New Year Parties, golf tournaments, picnics, respective welcome and farewell party for new and old Consul General of Japan. Reception for Japanese training ship and squadrons of the Maritime Self-Defense Force of Japan)

Receives and takes care of Japanese Traffic Orphan students annually.

Participates in and supports local revitalization plans and studies such as East Little Tokyo Station on Red Line, the introduction of local development fund and planning of local redevelopment.

Receives and exchanges opinions with agricultural, commercial and industrial missions from Japan.

Cooperates in and supports cultural and educational activities.

Hosts seminars for the community and local businesses.

Distributes information and event notices to members.

Provides information on Southern California society and businesses.

Engaged in relief activities for victims of different disasters.