Haystack

Data and analyticsY CombinatorEntrepreneur First

Website: usehaystack.io.

Category: Data and analytics.

Sectors: B2B, Engineering, Product and Design, Analytics.

Based in: San Francisco, United States.

Founded: 2020.

Team: 6 people on the team page.

On Recent Funding since: Sep 28, 2026.

Signals

Website registeredNov 8, 2019 (7 years old)

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/haystack (get a free API key).