Japan Sumo Association, a non-profit organization headquartered in Japan, was founded in 1925, focusing on martial arts. The organization reported $104.5M in revenue as of 2025. It operates and controls professional sumo wrestling in Japan under the jurisdiction of the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), maintaining and developing sumo traditions and integrity by holding tournaments and tours. The Association also develops means dedicated to the sport and maintains, manages, and operates the facilities necessary for these activities, operating subsidiaries such as the Kokugikan Service Company to organize its economic aspects, the Sumo School to organize training and instruction, and the Sumo Museum to preserve and utilize sumo wrestling records and artefacts.
On May 11, 2026, TUDOR announced a new partnership with the Japan Sumo Association and its GrandSumo universe, marking the brand's entry into the traditional culture of sumo wrestling. Previously, on April 24, 2026, Nobuyoshi Hakkaku, the six-time appointed Chairman of the Japan Sumo Association, received the Freedom of the City of London, an honor he expressed was "very honoured to receive" on behalf of all sumo wrestlers and members. Earlier, on April 9, 2026, the Japan Sumo Association demoted former yokozuna grand champion Terunofuji, now stablemaster Isegahama, and cut his pay by 10% for three months following his violence toward a wrestler in his stable. The association also issued a stern warning to wrestler Hakunofuji for an inappropriate act against a woman that preceded the violence.
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Japan Sumo Association offers 2 products in the sports industry. Japan Sumo Association's product portfolio comprises of martial arts.
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Japan Sumo Association's revenues were less than $250M in 2025. Caretta Research has split Japan Sumo Association's revenue into 2 different product categories, the largest of which is sumo Wrestling. For full access to Japan Sumo Association's revenue breakdown subscribe to Caretta Portal.
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