Dentsu

Dentsu, Inc. (株式会社電通, Kabushiki-gaisha Dentsū) is a Japanese international advertising, public relations, stockholding company HQ in Tokyo. Dentsu is currently the 5th largest advertising agency network in the world in terms of worldwide revenues. They've assisted in the production of some Ghibli films starting with Princess Mononoke, but since Tales from Earthsea, they've been credited in all following movies made by the company.

Movies

 * Princess Mononoke (1997
 * Spirited Away (2001)
 * Howl's Moving Castle (2004)
 * Tales from Earthsea (2006)
 * Ponyo (2008)
 * Arrietty (2010)
 * From Up on Poppy Hill (2011)
 * The Wind Rises (2013)
 * The Tale of the Princess Kaguya (2013)
 * When Marnie Was There (2014)
 * The Red Turtle (2016, only really credited on back of Japanese cover)