Direct Digital Holdings, Inc. operates as an end-to-end full-service advertising and marketing platform. The company's platform primarily focuses on providing advertising technology, data-driven campaign optimization, and other solutions to underserved and less efficient markets on both the buy- and sell-side of the digital advertising ecosystem. It serves various industry verticals, such as travel, education, healthcare, financial services, consumer products, and other sectors with a focus on small and mid-sized businesses. The company was founded in 2018 and is headquartered in Houston, Texas.