co-sign is a New York-based artist development and music marketing agency specializing in radio promotion, strategic partnerships, live events, music licensing, and brand strategy. Rooted in independent radio, co-sign partners with artists, record labels, brands, and cultural organizations to build audiences, spark discovery, and strengthen the communities that build local musical ecosystems.

Founded on the belief that successful music marketing shouldn't exist in silos, co-sign takes a holistic approach to connecting artists with listeners through media, live experiences, community engagement, and strategic partnerships. While radio remains the foundation of the company's work, its campaigns extend far beyond the airwaves. The company at large works to help build the infrastructure that allows artists, audiences, independent media, and local music communities to grow together.

From national radio campaigns and sponsorship strategy to large-scale events, cultural initiatives, and music licensing opportunities across film, television, advertising, and branded content, co-sign develops programs that bring music into the places where people discover it, experience it, and build community.

Past clients include Run the Jewels, Justice, Shygirl, Cigarettes After Sex, ODESZA, Sofi Tukker, Everything But the Girl, and Ivan Cornejo, and collaborations on projects with Qobuz, Giant Step / W Hotels (the Clio Award-winning W Records campaign), Amazon Web Services' Intersect Festival, Anchor.FM, Fiverr, and the New York City Mayor's Office of Media and Entertainment, where it produces Radio City, an annual celebration of independent radio as part of New York Music Month.

co-sign also founded FairPlay, a nonprofit coalition dedicated to expanding access, advocacy, and opportunity for BIPOC voices in non-commercial radio and the broader music community.