Organization and Description of Business (Tables)

3 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Ownership in Subsidiaries

Direct Digital Holdings, Inc. owns 100% of the voting interest in DDH LLC and as of March 31, 2026, it owns 94.3% of the economic interest in DDH LLC. DDH LLC was formed on June 21, 2018 and acquired by DDH on February 15, 2022 in connection with its organizational transactions. DDH LLC’s wholly-owned subsidiaries are as follows:

Subsidiary	Date of Formation	Date of Acquisition
Colossus Media, LLC	September 8, 2017	June 21, 2018
Orange142, LLC	March 6, 2013	September 30, 2020
Huddled Masses, LLC	November 13, 2012	June 21, 2018