What is Direct Digital Holdings's business focus and history?
Direct Digital Holdings is a publicly traded company based in Houston, Texas, founded in 2018 by Mark D. Walker and Keith W. Smith. It operates as an end-to-end, full-service advertising and marketing platform, offering solutions through its subsidiaries Colossus SSP and Orange 142. The company has raised $25 million in Series A funding as of September 2025. Direct Digital Holdings has 79 employees and serves a diverse clientele, including small and mid-sized businesses, agencies, and brands.
Direct Digital Holdings Corporate Details & Core Services
Direct Digital Holdings is an end-to-end, full-service advertising and marketing platform focused on providing advertising technology, data-driven campaign optimization, and other solutions to help brands, agencies, and middle-market businesses deliver successful marketing results across both the sell- and buy-side of the digital advertising ecosystem.
Direct Digital Holdings Contact Information & Official Links