Ship in a weekend.
Build for a lifetime.

Productat runs high-intensity hackathons and a year-round community for product builders: engineers, designers, and founders. Builders from every corner of the US, with a home base in the Bay Area.

Next hackathon · San Francisco · Sept 19–21, 2026

productat.com/sf-26/demo-day
Top projects
241 shipping now
1

Latchkey

AI scheduling for clinics · Team Northstar

412
2

Tinkergraph

Local-first data viz · ship_it_sam

388
3

Relayframe

Edge video pipelines · Team Fog City

351

Builders shipping from coast to coast

San FranciscoNew YorkAustinSeattleLos AngelesBostonChicagoDenverMiamiAtlantaPittsburghPortlandSan FranciscoNew YorkAustinSeattleLos AngelesBostonChicagoDenverMiamiAtlantaPittsburghPortland
6,400+
builders in the network
38
cities across the US
140+
products shipped
$250K
in prizes & credits
The Hackathon

36 hours. One demo. No filler.

Productat hackathons are built for people who would rather ship than pitch. Show up with an idea, leave with a product and a team that ships.

36-hour build sprint

Friday night to Sunday afternoon. Form a team of up to four, pick a track, and ship something that actually runs.

In person in the Bay

Our SoMa HQ runs the flagship event. Can't make SF? Join from a satellite node in 12 cities across the US.

Demo or it didn't happen

No slideware. Every team gets two minutes on the Demo Day stage to put a working product in front of judges.

The Community

The hackathon ends. The momentum doesn’t.

Productat is a year-round home for builders. The weekend is the spark. The community is where products, teams, and careers actually compound.

+6k

One always-on room of people who ship

Join builders from 38 cities trading work in progress, finding teammates, and pushing each other to put things in front of real users. Quiet lurkers welcome. Shippers celebrated.

shippedlive
MK
maya.k2m

shipped the v2 of our eval harness at last night's demo, repo in #open-source

DJ
deon.builds11m

anyone in NYC want to team up for the Sept hackathon? working on agent infra

RT
rosa.t26m

office hours with a seed fund opened up Thursday 3pm PT, grabbed a slot 🚀

Monthly demo nights

Ship something every month and show it live. Best demo gets the room, the feedback, and a slot on the newsletter.

Always-on builder channels

Thousands of builders trading code reviews, intros, and brutally honest feedback at every hour.

Mentor & investor office hours

Weekly 1:1 slots with operators, designers, and funds who have shipped and funded real products.

Hiring & co-founder matching

Curated intros for roles, contracts, and co-founders. The network hires from inside the network first.

Hands-on workshops

From eval harnesses to go-to-market, taught by people currently doing the thing, not talking about it.

Member perks & credits

Cloud, API, and tooling credits, plus partner discounts that follow you long after the weekend.

Sponsors & Partners

Backed by the tools builders actually use

Sponsors put real infrastructure, credits, and mentors in the room, and meet the builders shipping on their stack first.

Northwind
Halcyon
Quantel
Vector Labs
Brightpath
Ridgeline
Monolith
Apex API
Foundry
Cobalt
Lumen
Switchboard

Put your product in builders’ hands

Sponsor a hackathon or the year-round community. Tiers from community supporter to title partner, with API integrations, workshops, and hiring access.

Become a sponsor
FAQ

Answers before you ask

Still curious about something? Reach the team at hello@productat.com and we'll get back fast.

Come build something this weekend

Apply for the next hackathon or drop your email and we’ll send dates, tracks, and an invite to the community.

Free for accepted builders · San Francisco + 12 satellite cities · No spam, ever