While we have access to some proprietary data, the vast majority of our graphics rely on the many quality public sources of data available. These include government entities (i.e. U.S. Census data, FRED, etc.), intergovernmental organizations (IMF, World Bank, etc.), or established thought leaders in their respective sectors (think tanks, non-profits, corporations).
We lean towards using these types of sources because publicly available data is verifiable, accessible, and transparent.