YONNY is a flagship brand under Beijing Fish With You Brand Management Co., Ltd. Founded in 2017, YONNY pioneered the fast-casual suancai fish market, quickly sweeping across China and leading the suancai fish industry to become a well-known Chinese fast-casual chain brand.

After 8 years of growth, YONNY has expanded from Beijing to over 360 cities worldwide, with stores in international cities including New York, San Francisco, Vancouver, Dubai, Kuala Lumpur, and Bangkok. As of 2024, YONNY operates more than 2,500 stores globally, making it the world’s largest suancai fish brand by store count.