The GV-backed online radio network has boosted its total funding to $140m with a $50m round co-led by Comcast Ventures, Marker and Institutional Venture Partners.

Comcast Ventures, the corporate venturing arm of mass media group Comcast, has co-led a $50m funding round for US-based online radio network TuneIn, Bloomberg reported on Friday.

Marker and Institutional Venture Partners (IVP) co-led the round, which valued TuneIn at $500m and which included Sequoia Capital, Causeway Media Partners and General Catalyst Partners, according to a person with knowledge of the matter.

Founded in 2002, TuneIn runs a platform that provides online listeners with access to more than 100,000 stations…