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Data as of May 29, 2026
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Haystack
Open-source framework for building production-ready NLP applications.
Developer ToolsFounded January 2019#10 of 12 in Developer Tools
Updated May 29, 2026
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Company profile
What is Haystack?
Haystack is an open-source NLP framework. Enables building production-ready search and QA systems. Built by deepset.
Latest company data
Primary data point
GitHub stars
25.4K
Main repository stars
Updated 9h ago
Other data points
Hacker News
32/30d
Position #3 in category discussion
Updated 9h ago
Code usage
2
Public projects using this company's tools
Data as of Apr 21
Docker pulls
700.0K
Docker Hub pulls
Updated 9h ago
Repository health
Maintenance data from the main open-source repository.
OpenSSF ScorecardSource: OpenSSF ScorecardUpdates: WeeklyCaveat: Score 0–10 across security practices; not all checks apply to every repoMethodology →
5.3
Key-person riskSource: GitHub public event dataUpdates: WeeklyCaveat: Minimum developers needed for half of recent code changes. Lower = higher concentration risk.Methodology →
2
External contributorsSource: GitHub public event dataUpdates: WeeklyCaveat: Based on push events; may undercount contributors who only open PRsMethodology →
40
% of recent contributors outside the core team
Releases (30d)Source: GitHub release dataUpdates: WeeklyCaveat: Published releases in the last 30 daysMethodology →
0
Repository usage
Public repositories and source files importing packages tied to Haystack.
Repos importingMetric: Public GitHub repos using company packagesSource: ecosyste.ms Packages APIScope: UTC daily snapshotUpdates: DailyFreshness: 48h target; 48h expected source lagConfidence: HighCaveat: Public GitHub dependency data only; private repos and direct API use outside those packages are not visible.Methodology →
20%
About Haystack
Haystack is an open-source NLP framework. Enables building production-ready search and QA systems. Built by deepset.
FoundersMilos Rusic, Malte Pietsch, Tanja Bueltmann
Funding
$46M · 3 roundsRaised $46M total. Category position #10 of 12 in Developer Tools.
Series B2023
$30MBalderton Capital
Series A2022
$14MGV
Seed2020
$2MLunar Ventures
Investors
Balderton CapitalGVLunar Ventures