1.1 billion people globally live without an officially recognized identity. As a result, these individuals often struggle to access basic services - education, healthcare, voting, opening a bank account - and other fundamental human rights. The ID2020 Alliance was formed to solve this problem through digital identity. We bring together multinational institutions, nonprofits, philanthropies, businesses, and governments to set the technical standards for a safe, secure, and interoperable digital identity that is owned and controlled by the user. We fund high-impact pilot projects that bring digital identity to vulnerable populations, and use the data generated to find scalable solutions and inform public policy.