Donnelley Financial Solutions (DFIN) is a financial technology company that provides software and services to help companies manage their financial transactions and regulatory compliance. The company's products and services include software for managing financial reporting, SEC filings, and virtual data rooms for mergers and acquisitions. Donnelley Financial Solutions serves clients in a variety of industries, including banking, healthcare, and technology. The company was founded in 2016 and is headquartered in Chicago, Illinois.