ISEKADO announced the first wave of participating breweries for Beer or beer? 2026 on July 17. The event will take place at the rooftop garden of Nihonbashi Mitsukoshi Main Store from October 30 to November 3, and the post says nine breweries from across Japan will join the lineup.

The breweries identified in the first announcement include GOOD HOPS, HIMITSU BEER, Atsumi Peninsula Brewing, Nobody Brewing, SIBEERIA, and BLACK TIDE BREWING. The mix points to a lineup built around distinct brewing backgrounds and styles, with additional participants expected in later announcements.

ISEKADO is a craft beer brand based in Ise, Mie Prefecture, operated by Nikenchaya Mochiya Kadoya Honten. Alongside its online shop and direct retail presence, the brewery has been active in events that connect brewers and beer fans beyond its home region.

Beer or beer? has become a rooftop beer festival that lets visitors compare breweries in a spacious urban setting. This first announcement suggests that the 2026 edition will again focus on variety, collaboration, and the appeal of drinking beer in a place designed for lingering over a glass.