A Chamber of Commerce is an organization formed specifically to cater to the needs and interest of a particular business group.  The Native American Chambers of Commerce were formed to help advance the interest of Native American owned businesses in the U.S.  Membership does require a fee.  This organization advocates on behalf of their constituents, with national and local governments and private organizations to promote the interest of Native American owned businesses.  They provide networking and marketing opportunities.  They hold regular meetings and promotional events.  Click on the "Calendar" link to see  their scheduled events.