RedCircle, a podcast platform for independent creators, has raised $6 million in Series A funding round co-led by EPIC Ventures and Refinery Ventures. SignalFire, Bloomberg Beta, MathCapital, and angel investors including Justin Wohlstadter, founder of Wonder, George Strampolos, founder of Fullscreen, and Eckart Walther, contributor to the original RSS specification, also participated in the funding round. “Our data show that 65% of…