Prelim is building a modern operating system that addresses the limitations of decades-old financial systems. By providing an interface and infrastructure that sit atop legacy systems, Prelim empowers banks and credit unions to launch new financial products in weeks instead of years, enabling better, modern services for more people. Their mission focuses on transforming banking by making it easier, faster, and more accessible through customer focus, proactive ownership, high standards and commitment, curiosity, detailed communication ("writing to align"), and scrappiness.