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Haystack is an early-stage venture capital firm that primarily invests $500K-$3M in initial rounds of innovative software and technology startups. Their strategy focuses on partnering with "outlier founders" at the earliest stages of company building across various sectors, including consumer and enterprise software, fintech, and AI.
Deal activity decreased year-over-year (3 deals in the last 12 months vs 5 prior). Their most common stage is seed (50% of deals). Average disclosed round size is $17.1M (across 50 rounds with reported amounts).
Portfolio
54
Fund Size
$50M
Top Stage
Seed
Last 12 Mo
3
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
54 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| SSoma Energy | Seed | $7M | Apr 2026 |
 alphaXiv | Seed | $7M | Nov 2025 |
 Birches Health | Series A | $20M | Sep 2025 |
 Oboe | Seed | $4M | Oct 2024 |
 Bounti | Seed | $16M | Sep 2024 |
 Norm Ai | Seed | $11.1M | Jun 2024 |
 Materia | Seed | $6.3M | Jun 2024 |
 Layup Parts | Seed | $9M | May 2024 |
 Polar Signals | Seed | $10.8M | Mar 2024 |
 Bench IQ | Pre-Seed | $2.1M | Feb 2024 |
| Norm Ai | Seed | $11.1M | Jan 2024 |
 Haus | Series A | $17M | Aug 2023 |
 Silo | Series C | $32M | Jul 2023 |
 Silo Technologies | Series C | $32M | Jul 2023 |
 Finley | Series A | $17M | Jan 2023 |
 Common Fate | Seed | $3.1M | Dec 2022 |
 Canvas Medical | Series B | $24M | Jul 2022 |
 CloudQuery | Series A | $15M | Jun 2022 |
 Womp | Seed | $4.7M | Apr 2022 |
 Rutter | Series A | $27M | Mar 2022 |
 Ironclad | Series E | $150M | Jan 2022 |
| CloudQuery | Seed | $3.5M | Nov 2021 |
 Scribe | Series A | $22M | Oct 2021 |
| FFiddler AI | Series B | $32M | Jun 2021 |
| Finley | Seed | $3M | Jun 2021 |
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Top Co-Investors
Y Combinator6 shared
Lux Capital6 shared
Lightspeed Venture Partners5 shared
GV (Google Ventures)5 shared
Bloomberg Beta5 shared
Initialized Capital5 shared
SV Angel4 shared
Andreessen Horowitz3 shared
Basis Set Ventures3 shared
Menlo Ventures3 shared
Accel3 shared
M133 shared
Susa Ventures3 shared
Tiger Global Management3 shared
Liquid 2 Ventures3 shared
Boldstart Ventures3 shared
Work-Bench3 shared
CRV (Charles River Ventures)2 shared
Bain Capital Ventures2 shared
Female Founders Fund2 shared
Last updated: 15 April 2026