Funimation Logo (previously known as FUNimation Productions) is an American entertainment company formed by Gen Fukunaga in the early 1990s to produce, merchandise and distribute anime and other entertainment properties in the United States and international markets. The company became a subsidiary of Navarre Corporation on May 11, 2005. The company is headquartered and based in Flower Mound, Texas. But Navarre later sold the company back to Fukunaga in April 2011.

It was announced at Otakon 2009 that Funimation Entertainment will produce and distribute Casshern Sins for release in 2010, following a subtitled-only release on their video service in late 2009. The series made its North American television debut on December 14th, 2010 on the Funimation Channel. Cartoon Network and Adult Swim also broadcast the anime on their revived Toonami block, premiering May 27, 2012.