Description: The U.S. Chamber of Commerce is the largest business federation in the United States, representing companies and local chambers to advocate for pro-business public policy, economic growth, and a favorable regulatory and legal environment. Type: Trade association / nonprofit business federation (operates as a 501(c)(6) lobbying organization) Policies: Advocates for pro-business economic policies including tax and regulatory reform, free trade and market openness, litigation and regulatory reform, infrastructure and workforce development, and positions typically aligned with corporate and business interests on labor, energy, and healthcare policy. Funding: Primarily funded by membership dues and fees from national, state, and local chambers and corporate members, plus event and sponsorship revenue and contributions to affiliated political action committees. Affiliates: State and local chambers of commerce, the U.S. Chamber Institute for Legal Reform, the Center for Capital Markets Competitiveness, the U.S. Chamber Litigation Center, and a broad network of corporate members and business leaders.