StartupFlow AI
Accelerator

SOSV / HAX

Newark, NJ, United States

HAX is the world’s most active hard-tech pre-seed accelerator, providing up to $550K plus a hands-on engineering residency to help founders hit the technical milestones investors find too risky. Teams get lab access, in-house R&D support, and introductions to 7,700+ investors. Focus is sustainability, industrial automation, and human health.

The world’s most active hard-tech pre-seed accelerator, providing up to $550K plus a hands-on engineering residency with lab access and in-house R&D to help deep-tech founders hit technical milestones.

Why this could be a strong fit

Ideal for hard-tech founders with a prototype who need capital plus real engineering, lab, and prototyping muscle to de-risk their technology.

What you need to qualify

  • Building a hard-tech product (confirmed on application)
  • An initial prototype, customer insight, and clear vision
  • Willingness to complete an in-person residency in Newark, NJ
  • Cap table, pitch deck, and prior fundraising details for application

How to apply

  1. 1

    Prepare materials

    Assemble a pitch deck, prototype evidence, cap table, and founder details.

  2. 2

    Submit your application

    Apply via the SOSV HAX application portal.

  3. 3

    Screening & interviews

    The SOSV/HAX team reviews and interviews shortlisted teams.

  4. 4

    Offer & onboarding

    Selected teams join a monthly intake and begin the Newark residency.

Frequently asked

Up to $550K in initial pre-seed funding to fund critical early technical milestones, with follow-on via SOSV.

The residency is anchored at a Newark, NJ headquarters (plus the Princeton HAX Plasma Forge), with a global engineering ecosystem.

HAX uses rolling admissions, adding a few teams per month rather than one fixed annual deadline.
Deep techHardwareClimateRoboticsBiotech

Related programs

Do I qualify?

3 things decide this one. Check yourself against them before you spend time on the form.

Stage
Pre-seed
Where it runs
United States. In person, so you need to be able to take part there
What you give up
12% equity for $550,000
Deadline
Rolling, no published deadline

That is the rulebook. What we cannot show you here is whether your startup clears it, how this ranks against the other programs you qualify for, and what to fix if you do not.

Check what I qualify for

Five questions, about a minute, no account needed.

Details from public sources, not yet verified by our team. Spotted something wrong?

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