Signal Hill Insights is the leading audio-first market research firm with a core focus on brand lift studies for audio and video podcasts, streaming audio and radio, and survey-driven audience insights. Signal Hill partners with broadcasters, publishers and advertisers on custom research solutions for audio, including industry leaders like Acast, AdLarge, Audioboom, Cumulus/Westwood One, Gumball, Soundrise, SiriusXM, and Triton Digital.