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Developer conferences in Japan

There are 9 developer conferences in Japan with a public sponsor or exhibitor list or published sponsorship prices. The biggest is Go Conference 2026, with 81 companies listed.

All events 4Trade shows 1
57 sponsor and exhibitor listings at these events
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20264
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All events4Trade shows1

Trade shows: 100 or more exhibitors, or an expo floor on the organizer’s own description.

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Most companies listed
Most companies listedSoonest firstMost new companiesMost companies returningCheapest packageBiggest top package
#ConferenceCompaniesNewReturningPackages from
1
1. Open Source Summit Japan
Dec 7–9, 2026 · Tokyo, Japan
20companies
2
2. Embedded Linux Conference Asia
Dec 7–9, 2026 · Tokyo, Japan
19companies
3
3. Tokyo Test Fest
Nov 12–13, 2026 · Tokyo, Japan
11companies
4
4. Japan IT Week
Nov 18–20, 2026 · Osaka, Japan
7companies+1new55%returning

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 9 developer conferences in Japan.

Events94 upcoming
Listings291sponsors and exhibitors on their current editions
Trade shows1100+ exhibitors or an expo floor
Biggest81Go Conference

More developer conferences

Questions

What are the biggest developer conferences in Japan?

By companies listed at their current edition: Go Conference (81), DroidKaigi (59), Kaigi on Rails (56), RubyKaigi (38), Open Source Summit Japan (20).

Which developer conferences in Japan are coming up next?

Tokyo Test Fest (Nov 12–13, 2026, Tokyo); Japan IT Week (Nov 18–20, 2026, Osaka); Open Source Summit Japan (Dec 7–9, 2026, Tokyo); Embedded Linux Conference Asia (Dec 7–9, 2026, Tokyo).