Event Sponsor Rankings

Top Event Organizers in Tokyo

The 25 most sponsor-active event communities in Tokyo, ranked by our Event Leader Score and refreshed daily.

📊 25 ranked organizers 🔄 Updated September 30, 2026 🔍 12 sponsorship research sessions in Tokyo in the last 30 days 🤖 Compiled by Sponsor Scout
1

A recurring innovation and entrepreneurship community based at CIC Tokyo that connects founders, investors, corporates, researchers, students, and government stakeholders. Its flagship Thursday Gathering runs weekly alongside Rocket Pitch N…

weeklyfounders, investors, corporate innovators, researchers, students, and ecosystem buildersstartupinnovationcommunity
🎪 Tokyo Thursday Gathering #394🤝 12 known sponsors👥 ~300 reach📅 Last event: 2026-09-03
👤 Led by Ryusuke Komura · Executive Director and Head of Venture Café Japan✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
2

Large Tokyo-rooted nonprofit AI community running workshops, study sessions, talks, and hackathons around machine learning and data science. It also publishes open-source and research-oriented community work.

monthlyml engineers, researchers, data scientists & AI buildersaimachine learningdata science
🎪 Evals with Hamel Husain🤝 7 known sponsors👥 ~10,636 reach📅 Last event: 2026-07-18
👤 Led by Suzana · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
3
Leader Score 91

Tokyo AI (TAI) is a large Tokyo-based nonprofit AI community running recurring meetups, salons, technical sessions, and ecosystem events for engineers, researchers, founders, investors, and enterprise innovation teams. Its programming spans…

weeklyAI engineers, researchers, founders, investors & corporate innovation teamsaimachine-learningstartup
🎪 [Side Event] Humanoids Summit - Robotics Meetup🤝 10 known sponsors👥 ~120 reach📅 Last event: 2026-07-29
👤 Led by Ilya Kulyatin · AI Ecosystem Builder✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
4
Leader Score 86

An annual Tokyo-based Web3 and digital-assets conference organized by CoinPost, bringing together blockchain companies, financial institutions, investors, regulators, developers, and technology partners.

annualWeb3 companies, exchanges, investors, financial institutions, policymakers, developers, and mediaweb3cryptoblockchain
🎪 WebX 2026🤝 26 known sponsors👥 ~15,000 reach📅 Last event: 2026-07-14
👤 Led by Eita Shibuya · Executive Director✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
5

Tokyo chapter of the ProductTank product-management community, running recurring meetups for PMs, designers, and builders in Japan. Its activity is frequent and community-led rather than conference-led.

monthlyproduct managers, designers & startup buildersmarketinggrowthproduct
🎪 ProductTank Tokyo - Monthly Casual (Sep 3, 2026) @ TenCups Cafe Bar & Lounge🤝 15 known sponsors👥 ~60 reach📅 Last event: 2026-11-05
👤 Led by Aaron Bomar · Lead Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
6
Leader Score 84

Tokyo's recurring product-management community offering monthly meetups, talks, workshops, and informal networking for product managers, designers, engineers, marketers, and startup operators.

monthlyproduct managers, designers, engineers, founders, and product executivesproductstartupux
🎪 ProductTank Tokyo - Monthly Casual🤝 15 known sponsors👥 ~40 reach📅 Last event: 2026-09-03
👤 Led by Aaron Bomar · Lead Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
7
Leader Score 84

La French Tech Tokyo is the Tokyo chapter of France’s global startup initiative, running recurring networking and content events that connect founders, investors, operators, and ecosystem partners across Japan and France. Its regular French…

monthlyfounders, operators, investors & ecosystem partnersstartuptechcommunity
🎪 🐓 French Tech Connect #39 - May 2026🤝 7 known sponsors👥 ~95 reach📅 Last event: 2026-05-14
👤 Led by Aude Moras · Co-President✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
8

Tokyo chapter of the Startup Weekend community, delivering 54-hour startup-building programs that connect aspiring founders with co-founders, mentors, experts, and sponsors.

quarterlyaspiring founders, developers, designers, students, mentors, and investorsstartuphackathonentrepreneurship
🎪 Startup Weekend Tokyo Robotics 3rd🤝 11 known sponsors👥 ~60 reach📅 Last event: 2026-01-18
👤 Led by 田家 南奈 · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
9

Founder Institute Japan runs the Japanese chapter of the global pre-seed accelerator and startup training network, with online core-program sessions and in-person networking tied to Japan/Tokyo founders. The chapter is actively recruiting f…

weeklyaspiring founders & early-stage startup teamsstartupacceleratorfounders
🎪 Build a Fundable, Global Startup in Japan🤝 3 known sponsors👥 ~80 reach📅 Last event: 2026-11-10
👤 Led by Erdinç Ekinci · Managing Director✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
10

A long-running Tokyo fintech community and nonprofit association covering financial innovation, blockchain, digital assets, banking technology, regulation, and emerging financial business models.

monthlyfinancial-services professionals, fintech founders, investors, regulators, and technology providersfintechweb3banking
🎪 TFM237 - Japan Finsight🤝 3 known sponsors👥 ~80 reach📅 Last event: 2026-07-29
👤 Led by Norbert Gehrke · Organizer and Host✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
11
Leader Score 81

An annual English-language startup conference and founder-investor community connecting globally ambitious startups with investors, corporations, ecosystem partners, and talent in Tokyo.

annualfounders, investors, startup operators, corporations, students, and ecosystem buildersstartupfoundersinvestors
🎪 Takeoff Tokyo 2026🤝 9 known sponsors👥 ~5,000 reach📅 Last event: 2026-04-01
👤 Led by Arisa Ito · Head of Startups✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
12
Leader Score 78

Large recurring Tokyo marketing and advertising conference with exhibitions, workshops, and major brand sponsorship packages. It serves marketers, agencies, platforms, and adtech vendors.

annualmarketers, advertisers, agencies & martech vendorsmarketingadvertisingmartech
🎪 ad:tech tokyo 2026🤝 8 known sponsors👥 ~16,200 reach📅 Last event: 2026-10-23
👤 Led by Yuko Furuichi · President & CEO✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
13
Leader Score 78

Large bilingual Tokyo creative/design community that runs recurring events, Slack, and platform/community programming. It explicitly invites event collaborations and sponsorships.

monthlydesigners, creatives & builderscreativedesigncommunity
🎪 The Pisces Collective🤝 9 known sponsors👥 ~90 reach📅 Last event: 2026-02-22
👤 Led by Teresa Fong · Organizer & Community Manager✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
14
Leader Score 75

Tokyo edition of the global DevOpsDays conference focused on software delivery, IT operations, and engineering culture.

annualdevelopers, ops/SRE, engineering managersdevopscloudsre
🤝 8 known sponsors👥 ~300 reach📅 Last event: 2026-04-16
👤 Led by Muneyuki Okamoto · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
15
Spectrum Tokyo ✓ Verified
Leader Score 78

Spectrum Tokyo is a design community platform for people working in design in the tech industry. It runs recurring Tokyo meetups and larger design conference programming, including Design Matters Tokyo collaborations and sponsor recruitment…

monthlyproduct designers & design communitydesignproductux
🎪 Spectrum Tokyo Meetup🤝 4 known sponsors👥 ~150 reach📅 Last event: 2026-06-04
👤 Led by Ryo Sampei · CEO / Producer / Designer; Head of Design Matters Tokyo (Japan edition)✓ Verified by organizer💼 View sponsor profile →
16
Leader Score 73

Annual international software testing and QA conference in Tokyo featuring tutorials, talks, and community partnerships.

annualQA engineers, developers, test managerssoftware testingqadev
🤝 5 known sponsors👥 ~350 reach📅 Last event: 2026-11-13
👤 Led by Mesut Durukal · Founding Director / Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
17
A11yTokyo - Accessibility Tokyo Meetup
Leader Score 73

A11yTokyo is a recurring Tokyo accessibility meetup running hybrid, multilingual sessions on web, product, and digital accessibility for practitioners, advocates, and users.

monthlyaccessibility practitioners, designers, developers, and advocatesaccessibilitydesigncommunity
🎪 The Reality Beyond WCAG Guidelines🤝 5 known sponsors👥 ~651 reach📅 Last event: 2026-07-24
👤 Led by Makoto Ueki · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
18
Leader Score 73

A Tokyo-based monthly technology networking group that connects engineers, designers, executives, recruiters, freelancers, and other IT professionals through casual meetups and company-hosted events.

monthlyengineers, developers, designers, executives, recruiters, freelancers, and tech job seekerstechnetworkingstartup
🎪 Tech Networking Meetup & Talks at U-NEXT Office🤝 3 known sponsors👥 ~1,184 reach📅 Last event: 2026-09-18
👤 Led by Daichi A · Event Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
19

Tokyo's government-backed startup and innovation hub, hosting frequent pitch events, meetups, demo days, mentoring, accelerator programs, and corporate-startup collaboration activities.

weeklystartups, founders, investors, corporations, universities, and studentsstartupecosystempitch
🎪 TIB STUDIO DEMO DAY 2026🤝 2 known sponsors👥 ~300 reach📅 Last event: 2026-09-06
👤 Led by Andy Hung · Community Manager✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
20

Tokyo’s flagship global startup and technology platform connecting startups, investors, corporations, universities, governments, and city leaders. Its annual program combines exhibitions, startup pitching, corporate innovation, matching, an…

annualstartups, investors, corporations, governments, researchers, and technology professionalsstartupinnovationsmart city
🎪 SusHi Tech Tokyo 2026🤝 35 known sponsors👥 ~60,779 reach📅 Last event: 2026-04-29
👤 Led by Manabu Miyasaka · Vice Governor of Tokyo; Chairperson, SusHi Tech Tokyo Executive Committee✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
21
Leader Score 69

A Tokyo-based annual conference focused on Web3, blockchain, AI, digital assets, and emerging financial infrastructure, with exhibitions, investor networking, VIP programming, and sponsor-led activations.

annualWeb3 and AI companies, founders, investors, financial institutions, developers, regulators, and mediaweb3aistartup
🎪 TEAMZ Summit 2026🤝 18 known sponsors👥 ~10,000 reach📅 Last event: 2026-04-08
👤 Led by Tianyu Yang · CEO✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
22

Weekly founder and startup-community lunch meetup in central Tokyo focused on casual, repeat networking among entrepreneurs, investors, engineers, and startup enthusiasts.

weeklyfounders, investors, engineers & startup enthusiastsstartupfoundersnetworking
🎪 Tokyo Weekly Lunch🤝 2 known sponsors👥 ~30 reach📅 Last event: 2026-08-25
👤 Led by Francisco Dalla Rosa Soares · Community Manager✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
23
Leader Score 69

Long-running English-speaking Python community in Tokyo covering software, frameworks, machine learning, and data science through frequent meetups. It has visible event support from ecosystem companies.

monthlydevelopers, data scientists & ML engineerspythonsoftwaremachine-learning
🎪 Tokyo Python Side Project Showcase🤝 4 known sponsors👥 ~60 reach📅 Last event: 2026-07-22
👤 Led by bnln · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
24
Leader Score 68

HN Tokyo is a long-running hacker, startup, and tech networking community in Tokyo that hosts recurring social meetups for entrepreneurs, developers, and startup founders. It appears to run small but steady gatherings centered on introducti…

biweeklystartup founders, hackers & technologistsstartupfoundersnetworking
🎪 HN Tokyo Meetup #126🤝 1 known sponsor👥 ~90 reach📅 Last event: 2026-07-14
👤 Led by Paul Oswald · Organizer✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?
25

Tokyo-based AI meetup community focused on generative AI, developer learning, and applied AI networking. Its recent summit format connects builders, entrepreneurs, investors, and partner companies.

monthlyAI builders, founders & investorsaigenerative-aiagents
🎪 AI × FinTech Innovation Summit 2026🤝 3 known sponsors👥 ~120 reach📅 Last event: 2026-07-17
👤 Led by Suwei Gui · Director, Tokyo Generative AI Community✋ Verify you're the leader — free: badge, sponsor pitch page & sponsor leads· Not you? Who leads it?

199 companies sponsor events in Tokyo

These are real sponsors backing the communities on this list — discovered by Sponsor Scout's daily AI agent. Sign up free to see who's actively sponsoring right now, find the decision-makers, and reach out.

Mori BuildingInformation Development Co., Ltd.ICCコンサルタンツ(Co-Creation Partner)KPMG JapanID HoldingsAmerican ExpressCIC JapanKPMGSusHi Tech TokyoCICMori Building Co., Ltd.Tokyo Metropolitan GovernmentNVIDIARakutenDeepLearning.AIIntellicsAIElevenLabsCursor+181 more
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Property owners can submit evidence for Sponsor Scout review. Acceptance into Sponsor Scout does not guarantee placement in the public Top 25; rankings remain evidence-based and editorially independent.

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How we rank — the Event Leader Score

Every organizer is scored 0–100 by Sponsor Scout as we search the open web daily. The score blends five weighted signals — it rewards groups that gather real audiences and consistently attract sponsors. These findings are updated each day.

Sponsor activityHighest weight
How many distinct companies actively sponsor their events — the strongest signal of a live, fundable program.
Event frequencyHigh weight
How regularly they run events. Weekly & monthly cadences earn more than one-offs.
AudienceMedium weight
Estimated reach and the quality of the crowd they convene (founders, operators, investors).
RecencyLower weight
How recently they last gathered people — active beats dormant.
ReachLower weight
Web, social, and community footprint that amplifies a sponsor's spend.
Verified leaderBonus
A confirmed organizer who has verified their listing with a one-click email check — verified groups rank higher and earn a badge.

How to be #1 in Tokyo

Your rank is a sponsor magnet. The higher you sit on this list, the more sponsors and partners discover you here — and the more credible you look when you pitch them. Here's how to climb.

Verify your listingInstant boost
Confirm you lead the group with a one-click email check. Verified leaders earn a badge and an instant score bump.
Land more sponsorsBiggest lever
Sponsor activity is the heaviest signal. Every distinct company that backs your events lifts your score — and your rank.
Run events consistentlyBig lever
A regular cadence beats one-offs. Weekly and monthly programs rank far above occasional gatherings.
Grow your audienceMeaningful lever
Bigger, higher-quality crowds (founders, operators, investors) make you a more attractive sponsor bet.

Why it matters: sponsors browse these rankings to decide who to back. A higher rank means more inbound sponsor interest, warmer intros, and a stronger negotiating position — a compounding flywheel where more sponsors lift your rank, and a higher rank attracts more sponsors.

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