RhythmOne

Mid-tier independent programmatic advertising platform with strong video and CTV capabilities prior to merger with Taptica

RhythmOne was a San Francisco-based programmatic advertising technology company that operated a full-stack digital advertising platform spanning video, display, mobile, and connected TV inventory. The company was publicly listed on the London Stock Exchange's AIM market and positioned itself as a premium programmatic marketplace, connecting brand advertisers with quality publisher inventory through data-driven targeting and brand safety tools. RhythmOne grew significantly through acquisitions, most notably absorbing Burst Media, RadiumOne, and YuMe to expand its video advertising capabilities and publisher network. At its peak, RhythmOne offered a comprehensive suite of advertising solutions including a demand-side platform (DSP), supply-side platform (SSP), data management capabilities, and managed services for both advertisers and publishers. Its YuMe acquisition in 2017 was particularly significant, bringing advanced connected TV and video advertising technology into the fold and strengthening its position in the rapidly growing streaming video ad market. The combined entity was one of the larger independent programmatic platforms in North America. In February 2019, Taptica International announced an all-share merger with RhythmOne valued at approximately $176 million, which completed on April 1, 2019, when RhythmOne was delisted from AIM and ceased to exist as an independent brand. Taptica subsequently renamed itself Tremor International in June 2019, integrating RhythmOne's technology and publisher relationships into its expanded platform. Tremor International itself later rebranded as Nexxen in 2023, carrying forward the legacy of RhythmOne's assets within a broader connected TV and video advertising ecosystem.