Skip to content
Hack for Social Impact
Hack for Social Impact

Ushering positive use of technology by enabling those solving the most critical social problems.

Next event

San Francisco 2026

October 24–25, 2026 · Wefunder HQ

Also coming up
Seattle 2027
Spring 2027
Get notified

Partners

UN Convention to Combat DesertificationChan Zuckerberg InitiativeCommunity Legal Services in East Palo AltoTerner Center for Housing InnovationHamilton FamiliesCalifornia Homeless Youth ProjectPoint Blue Conservation ScienceThe Innocence CenterBoys & Girls ClubHopelinkHope StrategicWashington Dept. of Fish & WildlifeElectronic Frontier FoundationGAIA Global Health
About us

Technical solutions for mission-driven organizations that would otherwise go without

Hack for Social Impact enables mission-driven organizations to deploy emerging technology. Nonprofits, NGOs and government agencies bring a real need to better serve their beneficiaries; we scope it with them into a well-defined, high-leverage challenge that a team can build against in a weekend.

The hackathon plants the seed; we stay with partners and teams through the whole lifecycle, removing the barriers between a working prototype and deployment wherever needed.

A look inside Hack for Social Impact.

Proven solutions

Most hackathon projects die at the closing ceremony in a GitHub graveyard. Our point is not creating demos for a weekend. We focus on creating the right conditions for projects that actually get deployed, get funded, and end up in the hands of the organizations that need them.

See our impact
UNCCDClimatePresented at COP16

Green Policy Agent helps the UN Convention to Combat Desertification make sense of land degradation and drought data across countries. It was presented at COP16, the UNCCD's decision-making conference, in front of policymakers and country leaders as part of the Peace Forest Initiative.

Terner CenterHousing affordabilityYC + $3M seed

bild.ai reads architectural plans and drawings to work out what a project needs to be permitted and what it will cost. That jurisdiction-by-jurisdiction work is a large part of why affordable housing is slow and expensive to build. The team took it into Y Combinator and raised a $3M seed round, and has gone from participant to sponsor, staying generously active in our community.

CLSEPATenant justiceDeploying in legal clinics

Tenant Case Navigator gives advocates a searchable database of historical case records, so they can find the arguments that have worked before. Community Legal Services in East Palo Alto was awarded a grant to finish the technical implementation, and the tool is being deployed in legal clinics to help people understand their own cases.

Backed by

Previous sponsors and supporters.

GoogleMicrosoft for StartupsCloudflareWefunderElevenLabsFetch.aiDaytonaStanford CodeXSan Francisco Tech for GoodBild AIEudia
Stay updated

Subscribe for future event news.

Get involved

For Nonprofits

Bring us a real problem. We scope it with you before the event, put a team on it for a weekend, and stay involved afterwards so the work does not stall.

  • We help write the problem statement
  • You meet the team building it
  • Project grants fund the follow-through
Tell us your problem

Sponsor

Put your product in front of hundreds of developers, and see it deployed on real social problems — a genuinely positive use case for what you have built.

  • Hundreds of developers building on your stack
  • Deployed in the real world, not a toy demo
  • Your tools credited in the work that ships
See sponsor tiers

Join our team

Volunteer at an event, or apply for the organizing team to help impactful technical solutions reach more missions and constituents.

  • Volunteering at an event
  • Applying for the organizing team
  • High-ownership roles shaping the organization
See how to join

Where we have run

All events
In the press
San Francisco ChronicleMission LocalSan Francisco Business TimesBusiness Insider

Contact

We would love to hear from you, whether you are a nonprofit, a sponsor, press, a participant, or have something else in mind.