Rebel Fund is a data-driven, seed-stage venture capital firm that exclusively invests in the top 10% of startups from Y Combinator. The firm uses a proprietary machine-learning algorithm called Rebel Theorem 4.0 to validate and screen investments, making it one of the largest investors in the YC startup ecosystem.
Deal activity increased 120% year-over-year (11 deals in the last 12 months). Their most common stage is seed (71% of deals). Average disclosed round size is $6.7M (across 84 rounds with reported amounts).
Portfolio
88
Fund Size
—
Top Stage
Seed
Last 12 Mo
9
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
92 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Didit | Seed | $6M | May 2026 |
| DDidit | Seed | $7.5M | May 2026 |
 Veritus | Seed | $10.1M | Feb 2026 |
 Modelence | Seed | $3M | Jan 2026 |
 Leadbay | Seed | $4.3M | Jan 2026 |
 Dili | Series A | $15M | Jan 2026 |
 Freya | Seed | $3.5M | Nov 2025 |
 Cactus | Seed | $7M | Nov 2025 |
 Cactus Compute, Inc | Seed | $7M | Nov 2025 |
 Chowdeck | Series A | $9M | Aug 2025 |
 Orbital Operations | Seed | $8.8M | Aug 2025 |
 Caseflood.ai | Unknown | $3.2M | Jul 2025 |
 Apolink | Seed | $4.3M | Jul 2025 |
 Outset | Series A | $17M | Jun 2025 |
 Keep | Series A | $12M | May 2025 |
 Capi | Series A | — | Feb 2025 |
 TaxGPT | Unknown | $4.6M | Jan 2025 |
 Gullak | Series A | $7.5M | Jan 2025 |
 Cercli | Seed | $4M | Sep 2024 |
 Openmart | Seed | $2.8M | Aug 2024 |
 Pythagora | Seed | $4M | May 2024 |
 PointOne | Seed | $3.5M | Jan 2024 |
 TrueClaim | Pre-Seed | $2.1M | Jan 2024 |
 Circleback | Seed | $2.5M | Jan 2024 |
 CircleBack | Seed | $2.5M | Jan 2024 |
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Top Co-Investors
Y Combinator78 shared
Pioneer Fund20 shared
Soma Capital10 shared
General Catalyst7 shared
Global Founders Capital6 shared
Liquid 2 Ventures5 shared
Goodwater Capital5 shared
468 Capital5 shared
Transpose Platform5 shared
Alumni Ventures5 shared
Gaingels4 shared
Tribe Capital3 shared
Creandum3 shared
Form Ventures3 shared
Unpopular Ventures3 shared
Afore Capital3 shared
Bessemer Venture Partners3 shared
Amino Capital3 shared
Hearst Ventures3 shared
8VC3 shared
Last updated: 9 September 2026