RhythmOne

Mid-tier independent programmatic advertising platform with strong video and cross-screen capabilities prior to acquisition by Tremor International

RhythmOne (formerly Blinkx) was a digital advertising technology company headquartered in San Francisco, California, that provided programmatic advertising solutions across desktop, mobile, and connected TV environments. The company offered a unified platform enabling advertisers and publishers to transact across multiple ad formats including video, display, native, and rich media, with a strong emphasis on brand safety and viewability. RhythmOne positioned itself as a premium programmatic marketplace, leveraging data-driven targeting and cross-screen capabilities to connect brands with engaged audiences at scale. The company grew significantly through acquisitions, notably acquiring YuMe (a video advertising platform) in 2017 and merging with TechTarget-backed entities, which expanded its video and connected TV footprint. RhythmOne also acquired RadiumOne and Perk.com assets, broadening its data and audience capabilities. These moves made RhythmOne one of the more substantial independent programmatic players in the mid-tier AdTech ecosystem during the late 2010s. In 2019, RhythmOne was acquired by Tremor International (formerly Tremor Video), which integrated RhythmOne's technology and publisher relationships into its broader video and CTV advertising stack. The acquisition marked the end of RhythmOne as an independent entity, with its assets and teams absorbed into Tremor's growing programmatic platform.