Ruth Ersfeld was born and raised in Cologne, Germany. She studied Latin American Studies at Cologne University while working already at festivals and the WDR broadcasting station.
From 2007 on, she started as a trainee at Lichtblick Film and then changed to being a line producer at Flare Film (formerly Lichtblick Media) in Berlin for more than a decade. In late 2019, as a producer for documentary and fiction at Tag/Traum Filmproduktion, she returned to Cologne. Since 2023, together with her colleague Susanne Heinz, Ruth founded Alma Bäng, a production company for both documentary and fiction feature length film and podcast, based in Cologne.
From 2007 on, she started as a trainee at Lichtblick Film and then changed to being a line producer at Flare Film (formerly Lichtblick Media) in Berlin for more than a decade. In late 2019, as a producer for documentary and fiction at Tag/Traum Filmproduktion, she returned to Cologne. Since 2023, together with her colleague Susanne Heinz, Ruth founded Alma Bäng, a production company for both documentary and fiction feature length film and podcast, based in Cologne.