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Developer conferences in Japan

There are 3 developer conferences in Japan with a public sponsor or exhibitor list or published sponsorship prices. The biggest is RubyKaigi 2026, with 38 companies listed.

All events 1Trade shows 1
6 companies listed at these events
Developer
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Japan
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Regions
Europe4Asia2
Countries
United States18Canada2Netherlands1Singapore1Germany1Italy1Spain1Japan1
Cities
Jersey City2Amsterdam2Houston1Chicago1Miami Beach1Charlotte1Providence1Atlanta1Richmond1Nashville1Riverside1Fort Lauderdale1Southfield1Berlin1New York1Bologna1San Jose1Barcelona1Clearwater1Salt Lake City1Vancouver1San Francisco1Las Vegas1Chiba1
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Year
20261
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Trade shows: 100 or more exhibitors, or an expo floor on the organizer’s own description.

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1. Japan IT Week
Oct 21–23, 2026 · Chiba, Japan
6companies

Companies: sponsors and exhibitors on each event’s current edition, read from its own directory, sponsor page or prospectus. New: not listed at the previous edition. Returning: share of the previous edition’s companies listed again.

Key facts

Across the 3 developer conferences in Japan.

Events31 upcoming
Companies listed44across their current editions
Trade shows1100+ exhibitors or an expo floor
Biggest38RubyKaigi

Questions

What are the biggest developer conferences in Japan?

By companies listed at their current edition: RubyKaigi (38), Japan IT Week (6), KubeCon + CloudNativeCon Japan (0).