Startup & tech events in Tokyo

29 events 10 this week

Every Monday, one email

The Tokyo events worth planning around, at a glance.

JP October 2026

October 2026

49 events

28 （招待制）Colosseum Hackathon VIPパーティ @ 麻布十番 18:00 · Hackathon
29 Journey to the Centre of the LLM 19:00 · Meetup
30 YOKOHAMA CONNÉCT #46 16:00 · Meetup Go Global Hub #1 Discover Global Challenges 18:00
1 Networking for Entrepreneurs at Thursday Gathering | 起業家交流会 16:00 · Meetup Venture Café's Thursday Gathering (at CIC Tokyo) 16:00 How to Enjoy #ThursdayGathering [JP/ENG | 日英] 16:00 DEMO TABLEs at Thursday Gathering 16:00
2
3 Solana Build Day Tokyo｜Solana × AI 実践ワークショップ 13:00 · Workshop Founders Running Club :: Tokyo 09:00 Tokyo | Claude Meetup for Healthcare Professionals 15:00
4 Vibe Coding & Tech Networking in Shibuya 14:00 · Meetup Feed Forward: A Brunch for LLM Enthusiasts 11:45
【Helsinki Night】 Well-being, by design ~スタートアップから教育、都市開発まで~ (YC #47)
5 「いまゼロから事業を立ち上げるなら」【DeNA FOUNDERS LOUNGE vol.1】【by DeNA】 18:00 · Meetup
6
7 From Prototype to Production - Japan 10:00 · Meetup Zero to One User: A Brunch for Founders 07:45
8 Networking for Entrepreneurs at Thursday Gathering | 起業家交流会 16:00 · Meetup Robotics x AI : How Robotics Changed After AI Happened 18:30
9 Word Salad to Spaghetti Code: A Brunch for Vibe Coders 07:45 · Dinner
10 Founders Running Club :: Tokyo 09:00 · Meetup Open Tech Lounge: CS / AI / Programming Meetup 15:00
11
12
13 AI Agents and Prediction Markets 18:00 · Meetup The AI Collective Tokyo｜社会課題を解決するためのAI・テクノロジー活用 〜Hack for Humanity〜 18:30
14 【Helsinki Night】YOKOHAMA CONNÉCT #47 16:00 · Meetup Weekly Snack & Connect at Shibuya Bridge 16:00 Reliable agents: memory, execution state and recovery 18:00 Vibe Coders Tokyo #11 - Good Quality Apps 19:00
15 Networking for Entrepreneurs at Thursday Gathering | 起業家交流会 16:00 · Meetup DEMO TABLEs at Thursday Gathering 16:00 Venture Café's Thursday Gathering (at CIC Tokyo) 16:00 How to Enjoy #ThursdayGathering [JP/ENG | 日英] 16:00
16
17 Tokyo Agent Hackathon – 東京エージェントハッカソン 09:30 · Hackathon Founders Running Club :: Tokyo 09:00 Shibuya | Claude Meetup 15:00
18 DevDay Community Hackathon 12:30 · Hackathon
19 HN Tokyo HN Tokyo Meetup 18:30 · Meetup
20
21 Shibuya Startup Support Weekly Snack & Connect at Shibuya Bridge 16:00 · Meetup
22 Networking for Entrepreneurs at Thursday Gathering | 起業家交流会 16:00 · Meetup DEMO TABLEs at Thursday Gathering 16:00 How to Enjoy #ThursdayGathering [JP/ENG | 日英] 16:00 Venture Café's Thursday Gathering (at CIC Tokyo) 16:00
23 東京ハッカソン〜コンテンツの力を、AIのひらめきに Tokyo Hackathon l Build AI with character 09:15 · Hackathon AI x Finance #03: Markets, Models & Institutions 18:00 Talking about idea of SaaS running business in Japan 18:30
24 DevDay Exchange Community Workshop: OpenAI DevDayをキャッチアップするもくもく会 13:00 · Workshop
25
26
27
28 Shibuya Startup Support Weekly Snack & Connect at Shibuya Bridge 16:00 · Meetup YOKOHAMA CONNÉCT #48 16:00
29 Networking for Entrepreneurs at Thursday Gathering | 起業家交流会 16:00 · Meetup DEMO TABLEs at Thursday Gathering 16:00 How to Enjoy #ThursdayGathering [JP/ENG | 日英] 16:00 Venture Café's Thursday Gathering (at CIC Tokyo) 16:00 GDG Shibuya Kickoff: Vibe & Build — From Vibe Coding to Production Agents 19:00
30 Growing Together ✨ GEMAI #001 — Make Your Ideas Come True with Base44 19:00 · Hackathon
31
1 Vibe Coding & Tech Networking in Shibuya 14:00 · Meetup

3

4

3

5

The weekly Tokyo issue, every Monday

One email per week: Tokyo's founder events worth planning around, at a glance.

Know a founder in Tokyo? Send them this page.

About Tokyo · October 2026

Tokyo's next few weeks belong to builders and hackathons, not big stages. The main draw, SusHi Tech Tokyo on May 20, 2027, is seven months out: the city government's flagship, which gathers the whole Japanese ecosystem and a large foreign contingent. Until then, try the +81Builders Tokyo Agent Hackathon on Oct 17 and Redpine's AI hackathon on Oct 23, plus Venture Café's weekly Thursday Gathering at CIC Tokyo.

Series & organizers in Tokyo

Major hubs