Data aggregators are companies or services that collect and compile data from various sources to create a comprehensive database. They gather information from public records, social media, websites, and other platforms to provide insights and analytics. This data can be used for various purposes, including marketing, research, and decision-making. These aggregators often sell or share their compiled data with businesses, researchers, and government agencies. By consolidating information, data aggregators help organizations save time and resources, allowing them to access valuable insights without having to gather the data themselves. Examples of data aggregators include Acxiom, Experian, and Zillow.