Uniting Business. Advancing Arizona. The tagline of the Arizona Chamber of Commerce and Industry expresses our organizational goal to serve as the collective voice for Arizona business at the state legislature. The Arizona Chamber exists to represent the interests of commerce and industry in a way that enhances our state economy. The Arizona Chamber of Commerce and Industry is committed to advancing Arizona's competitive position in the global economy by advocating free-market policies that stimulate economic growth and prosperity for all Arizonans.