One Piece

One Piece is owned by Shueisha Inc., headquartered in Japan. No. The ultimate owner of One Piece, Shueisha Inc., is headquartered in Japan, not in the United States.

Shueisha is a major Japanese publishing company headquartered in Chiyoda, Tokyo, known for its Weekly Shonen Jump magazine and numerous iconic manga titles.

VIZ Media (North American Publisher/Distributor)