Pioneer Fund is a venture capital fund of 500+ Y Combinator alumni that invests in and supports top startups from Y Combinator. Based in San Francisco, the firm focuses on seed-stage opportunities across a broad range of sectors.
Deal activity decreased year-over-year (10 deals in the last 12 months vs 16 prior). Their most common stage is seed (61% of deals). Average disclosed round size is $7.3M (across 168 rounds with reported amounts).
Portfolio
168
Fund Size
—
Top Stage
Seed
Last 12 Mo
10
Team
Mike Dilworth
General Partner, CFO
Rajiv Bhat
General Partner - AI, Senior Venture Partner
Rob Genovese
Managing Director
Alexander Mistakidis
Investment Partner
Bede Jordan
Portfolio Founder, Senior Venture Partner
Beth Kolko
Investment Partner
Connor Hailey
Senior Venture Partner
Daniel Baum
Visiting Senior Venture Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
 VideoGen | Seed | $3.3M | Sep 2026 |
 Landeed | Seed | $8.3M | May 2026 |
 Didit | Seed | $6M | May 2026 |
 Didit | Seed | $7.5M | May 2026 |
 Manufact | Seed | $6.3M | Feb 2026 |
| NNuVision Biotherapies | Unknown | — | Feb 2026 |
 Bolna | Seed | $6.3M | Jan 2026 |
| Bolna | Series A | $6.3M | Jan 2026 |
| Didit | Seed | $7.5M | Jan 2026 |
 Uplift AI, Inc | Seed | $3.5M | Jan 2026 |
 A1Zap by A1Base | Seed | $4.3M | Jan 2026 |
 Alien | Pre-Seed | $7.1M | Jan 2026 |
 PgDog | Seed | $5.5M | Jan 2026 |
 Pally | Seed | $5.2M | Jan 2026 |
| Bolna | Seed | $6.3M | Jan 2026 |
 Multifactor, Inc | Seed | $15M | Dec 2025 |
 Guide Labs | Seed | $9M | Dec 2025 |
 Adam | Seed | $4.1M | Oct 2025 |
 Mastra | Seed | $13M | Aug 2025 |
 Alaan | Series A | $48M | Aug 2025 |
 Caseflood.ai | Unknown | $3.2M | Jul 2025 |
 Cascade Space | Seed | $5.9M | Jul 2025 |
 Cekura | Seed | $2.4M | Jun 2025 |
 Unbound | Seed | $4M | May 2025 |
| WWorkDone | Unknown | $1.8M | May 2025 |
Top Co-Investors
Last updated: 7 October 2026