SVYCA Youth for Earth (Y4E) Hackathon
Silicon Valley Youth Climate Action · Stanford University, Stanford
29-day build with a submission deadline; $2,700 prizes.
Open$2,700 prizes
The Bay Area hackathon calendar
Everything worth building at,
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Every hackathon across San Francisco and the wider Bay Area, kept current morning and evening. Subscribe once and the next one finds you — no more combing through invite links and half-dead group chats.
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/calendar.icsWhat’s coming up
September 2026
Agentic AI Hackathon: AWS Community Day Bay Area 2026
AWS Community Bay Area · AWS Builder Loft, San Francisco
15-day build with judging, demos, team formation, a submission deadline; $3,200 prizes.
Sold out$3,200 prizesOctober 2026
OpenPhysical AI Hackathon & Demo Day: Build a Product You Can Hold #SFTechWeek
Echo Gao · 165 Page St, San Francisco
5-hour build with judging, demos.
OpenZero Human Startup Hackathon | #SFTechWeek
Tech Events SF | BridgeUs · Lower Haight, San Francisco
8-hour build with judging, demos, team formation; $500 cash.
Open$500 cashBig Earth Hackathon Guest Speaker Session: David Shew (Wildfire Defense Works)
Stanford Big Earth Hackathon · Stanford
1-hour build.
ApprovalBuild Personal AI with Coding Agents - #SF TechWeek
Flow with Timing · Sports Basement Bryant Street, San Francisco
6-hour build with judging, demos, team formation, a submission deadline.
Open"Build an Agent" Hackathon
Vivian Cai · Corgi Cafe, San Francisco
4-hour build with judging, demos, team formation, a submission deadline; $10k cash.
Approval$10K cashPax Silica Hackathon: SF Tech Week
Builderbase Hackathons · 2 Embarcadero Ctr, San Francisco
3-hour build with demos, team formation.
ApprovalHardware hackathon: turn a vintage toy into a voice agent
AssemblyAI · Northern Waterfront, San Francisco
3-hour build with demos; $100 prizes.
Open$100 prizesMultiplayer Hackathon by Party (SoMa)
Party · Mid-Market, San Francisco
3-hour build with demos, team formation; $20 prizes.
Open$20 prizesSpaces by WZRD Tech: Agency (air launch + mini-hackathon) | #SFTechWeek
5-Dee Studios · San Francisco
6-hour build with judging, demos, team formation, a submission deadline; $5,000 prizes.
Approval$5,000 prizesTripothon S1 World-Building Demo Day @San Francisco
Tripo AI · San Francisco
9-hour build with judging, demos, team formation; $80,000 prizes.
Open$80,000 prizesEveresteer Hedge Fund Hackathon: San Francisco #SFTechWeek
Personal · 11 Pearl St, San Francisco
5-hour build; $1,000 prizes.
Approval$1,000 prizes- Approval
Punk Software Hack Night: Dismantle Network Effects #SFTechWeek
Imbue Events · Civic Center, San Francisco
4-hour build with demos.
OpenCode. Fix. Drink. Repeat. with WeAreDevelopers & Snyk
WeAreDevelopers · 260 California St suite 600, San Francisco
3-hour build with demos, team formation; prizes listed.
Sold outPrizes listedBuild It Anyway: Signal Hunt with Apify | SF Tech Week Hackathon for Non-Technical Builders
Build It Anyway · 461 Bryant St, San Francisco
6-hour build with judging, demos.
OpenCyberdefense Hackathon #SFTechWeek
tokens& · Financial District, San Francisco
10-hour build with judging, demos, team formation, a submission deadline.
ApprovalFind a Cofounder, Help or Join a Tech Startup
Startup Oasis · San Francisco
3-hour build with team formation; prizes listed.
OpenPrizes listed#SFTechWeek - Decision-Grade AI @ Stanford ⚡️ A Buildathon on LLM Trust
ezio · Industrious Palo Alto Page Mil, Palo Alto
24-hour build with a submission deadline.
Check pageMultiplayer Hackathon by Party (Peninsula)
GLO · 810 Hamilton St, Redwood City
9-hour build with judging, demos, team formation; $25,000 prizes.
Open$25,000 prizesAI-Native Startup Hackathon
BondHaus · San Francisco
10-hour build with judging, demos, team formation.
OpenIBM Qiskit Fall Fest 2026: Quantum Pathways & Verification
Berkeley Gateway Accelerator · Berkeley
8-hour build with judging, team formation.
ApprovalMulti Model Hackathon - #SFTechWeek
Builderbase Hackathons · Frontier Tower 🧑🚀, San Francisco
9-hour build with demos, team formation.
OpenTech Week Hackathon
Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco, SF
10-hour build.
OpenBuild AI agents that own their inference - #SFTechWeek
[SF] HackerSquad · AWS Builder Loft, 2nd Floor, 525 Market St, SF
11-hour build with judging, demos.
ApprovalBig Earth Hackathon Guest Speaker Session: Joaquin Ramirez (Technosylva)
Stanford Big Earth Hackathon · Stanford
1-hour build.
OpenCompany Brain Hackathon: Build an AI Agent That Knows Your Organization
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
4-hour build with judging, demos, team formation.
OpenEMBEDDED SF: CraftifAI Physical AI Hackathon
Devnovate · San Francisco
9-hour build with demos, team formation; $500 cash.
Approval$500 cashAWS Community Day - AI Edition
AWS Community Bay Area · AWS Builder Loft, San Francisco
10-hour build with demos, team formation; $3,200 prizes.
Open$3,200 prizes- ApprovalPrizes listed
Fast Forward
Vercel Events · San Francisco
8-hour build with judging, demos, team formation, a submission deadline.
ApprovalSF Frontier Hackathon: Build your Autonomous Code Factory
Obvious Community Events · SoMa, San Francisco
10-hour build.
OpenBig Earth Hackathon Guest Speaker Session: Wei-ting Chen (Stanford Community Engagement)
Stanford Big Earth Hackathon · Stanford
1-hour build.
OpenCtrl+Space Hackathon - SF
ReactVision · SoMa, San Francisco
4-hour build with judging, demos, team formation, a submission deadline; prizes listed.
OpenPrizes listedVenture Night@TechCrunch Disrupt 2026 – The Ultimate Startup & Investor Experience!
TechEmbassy · FOCUS Innovation Studio, San Francisco
3-hour build with judging, team formation; $25,000 prizes.
Open$25,000 prizesMultiplayer Hackathon by Party (Peninsula)
Party · 810 Hamilton St, Redwood City
3-hour build with demos, team formation; $20 prizes.
Open$20 prizes- OpenPrizes listed
Maritime Dual-Use Hackathon
Mind the Bridge · Mind the Bridge, San Francisco
2-day build with judging, team formation, a submission deadline; prizes listed.
OpenPrizes listedArm + ExecuTorch: Edge AI Challenge
arm · San Francisco State University, San Francisco
2-day build with a submission deadline.
Check pageMake Something Agents Want
YC · San Francisco
2-day build with judging, demos, team formation, a submission deadline; $3,000 cash.
Open$3,000 cashThe Recursive Agents Hackathon
Cerebral Valley · San Francisco
13-hour build with team formation; $25,000 cash.
Open$25,000 cashExecuTorch Hackathon
[SF] HackerSquad · Founders, Inc. | San Francisco Lab, San Francisco
2-day build with demos, team formation; prizes listed.
ApprovalPrizes listed- Open
Universal Hackathon - Create Your Own AI Workforce | AWS Builder Loft
Medallion XLN Events · AWS Builder Loft, San Francisco
11-hour build with demos, team formation; $800 prizes.
Open$800 prizes- Check page
AI Startup Challenge Hackathon: The Pre-Event of SF AI Summit
Devnovate · San Francisco
10-hour build with judging, demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listedStartup Sprint: Prove you're fundable
Proving Ground · Palo Alto
3-day build with judging, team formation, a submission deadline.
ApprovalZero to Hundred: GTM Vibe Coding Buildathon
Personal · Downtown North, San Francisco
4-hour build with judging, demos, team formation, a submission deadline.
OpenFIG AI Design Makeathon: Winner Demo — Live at the AWS Builder Loft
Fig Studio · AWS Builder Loft, San Francisco
4-hour build with demos.
Check pageIntelligence at Work Hackathon – Cerebral Valley
Snowflake · Menlo Park
12-hour build with judging, team formation; prizes listed.
OpenPrizes listedYummy Future Hackathon Festival
PopPopTech Events · Yummy Future Coffee, Matcha & Tea, Palo Alto
3-day build with judging, demos, team formation, a submission deadline; prizes listed.
OpenPrizes listedBeta Fund X AWS X OpenAI Multi-Model Hackathon
Beta University Events · San Francisco
10-hour build with judging, demos, team formation; prizes listed.
ApprovalPrizes listed- Check page
Cleantech Hackathon at Stanford
Personal · Jen-Hsun Huang Engineering Center, Stanford
2-day build with team formation.
OpenPersonalized Medicine Builders: Demos, Discussion and Social
Research to the People Patient Hackathons · 81 Langton St, San Francisco
2-hour build with demos.
ApprovalWin iPhone Duos + MacBook Pros | Patch the Conference Hackathon
Bright Data · Bright Data, San Francisco
10-hour build with judging, team formation; prizes listed.
OpenPrizes listedHack for Social Impact 2026
Hack for Social Impact · San Francisco
2-day build with team formation; prizes listed.
ApprovalPrizes listedKane CLI Hack Day, supported by OpenAI
TestMu AI · Financial District, San Francisco
11-hour build with judging, demos, team formation, a submission deadline; $30,000+ prizes.
Open$30,000+ prizesPhysical AI for Science Hack @ Studio 45 with Claude Community
SF AI Science Studio · San Francisco
2-day build with demos, team formation, a submission deadline.
Approval- Open
AI × GTM Day: Growth Hackathon, Talks & Social
Local Align · Santa Clara
6-hour build with judging, demos, team formation, a submission deadline; $200 cash.
Open$200 cashDell x NVIDIA Hackathon
Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco
10-hour build.
Open- Open
The Builder Base: Buildathon
Devnovate · San Francisco
8-hour build with demos, team formation; prizes listed.
ApprovalPrizes listedNovember 2026
TechEquity Ai Summit 2026: Talks + AI Agent Workshops
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
4-day build with demos.
Check pageOwn Your AI: Build an Agentic AI Model Factory - Hack Night
Building AI Together | Union.ai · San Francisco
3-hour build with team formation.
OpenCompany Brain Hackathon: Build an AI Agent That Knows Your Organization
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
7-hour build with judging, demos, team formation.
OpenHackStorm 3.0: Sense, Think and Act
HackStorm · San Francisco, California, USA, San Francisco
3-day build with a submission deadline; $5,200 prizes.
Check page$5,200 prizesHack the Feed: Creator Tools Hackathon with Oriane, GMI Cloud & Lovable at Amplitude HQ!
Oriane.xyz Video Intelligence · Amplitude Analytics, San Francisco
5-hour build with demos, team formation; $3,000 cash.
Open$3,000 cash- Open
AI Tutor Hackathon
Beta University Events · Stanford
8-hour build with demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listedAI Research Hackathon
Iterate · San Francisco
20-hour build with judging, demos, team formation; prizes listed.
ApprovalPrizes listedThe Design Project Hackathon
eventbrite.com · California College of the Arts (CCA), San Francisco
24-hour build.
Check pageBiohackathon: Haus F26 - Members +3
Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco
2-day build with judging; prizes listed.
OpenPrizes listed- Check page
HackwithBay 4.0
Devnovate · AWS Builder Loft, San Francisco
9-hour build with demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listed- Approval
December 2026
AI Hackathon: Sales Copilot AI
TatianaSF · Northern Waterfront, San Francisco
8-hour build with judging, demos, team formation; prizes listed.
OpenPrizes listedAI Hackathon: Sales Copilot AI
TatianaSF · San Francisco
8-hour build with judging, demos, team formation; prizes listed.
OpenPrizes listedAgentic AI Hackathon 2.0 - SF
Devnovate · AWS Builder Loft, San Francisco
9-hour build with demos, team formation; prizes listed.
ApprovalPrizes listedWinterHack 2026: Christmas and New Year Hackathon
BondHaus · AWS Builder Loft, San Francisco
11-hour build.
OpenODSC AI x NEBIUS | Hackathon
eventbrite.com · Hyatt Regency San Francisco Airport, Burlingame
24-hour build.
Check pageJanuary 2027
⚕️ HealthTech Week ⚕️ Startup Pitch Competition (@JPM) in Partnership MedStartr
⚕️SF HealthTech Week⚕️ Events · The Foundry SF, San Francisco
3-hour build with judging, demos.
OpenDeveloperWeek 2027 Hackathon
DevNetwork · Santa Clara Convention Center + Online, Santa Clara
18-day build with a submission deadline; $6,000 prizes.
Check page$6,000 prizesFebruary 2027
Check page