A* is an early-stage venture capital firm co-founded by Kevin Hartz and Bennett Siegel, guiding outlier founders from idea to IPO. The firm takes a high-conviction, ownership-driven approach to seed investing, backing technical founders with concentrated portfolios.
Deal activity increased 140% year-over-year (12 deals in the last 12 months). Their most common stage is seed (40% of deals). Average disclosed round size is $92.4M (across 41 rounds with reported amounts).
Portfolio
38
Fund Size
$450M
Top Stage
Seed
Last 12 Mo
15
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
47 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| SStack | Seed | $21M | Sep 2026 |
 Sail | Seed | $80M | Jun 2026 |
| Sail | Series A | $80M | Jun 2026 |
 Golden Child | Seed | $37M | Apr 2026 |
| Golden Child | Series A | $37M | Apr 2026 |
 Edra | Series A | $30M | Mar 2026 |
 Simile | Series C | $100M | Feb 2026 |
 Resolve AI | Series A | $125M | Feb 2026 |
 Decagon | Series D | — | Jan 2026 |
 Sail Research | Seed | — | Jan 2026 |
| Sail Research | Series A | — | Jan 2026 |
 Aaru | Series A | — | Dec 2025 |
 Vulcan Technologies, Inc | Seed | $10.9M | Oct 2025 |
 Vulcan Technologies | Seed | $10.9M | Oct 2025 |
 Assort Health | Series B | $76M | Sep 2025 |
 Obviant | Series A | $7.1M | Jun 2025 |
 Landbase | Series A | $30M | Jun 2025 |
| MMultiply Mortgage | Series A | $23.5M | Mar 2025 |
 Aligned Marketplace | Seed | $3M | Jan 2025 |
 ai.work | Seed | $10M | Jan 2025 |
| CCartesia AI, Inc. | Series A | $64M | Jan 2025 |
| Decagon | Series C | — | Oct 2024 |
 Pomelo | Series A | $35M | Apr 2024 |
| Aligned Marketplace | Seed | $8M | Apr 2024 |
 Cartesia | Seed | $27M | Jan 2024 |
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Top Co-Investors
Redpoint Ventures9 shared
SV Angel9 shared
Liquid 2 Ventures8 shared
Index Ventures7 shared
Abstract Ventures7 shared
Kleiner Perkins6 shared
Coatue Management LLC5 shared
General Catalyst5 shared
Sequoia Capital5 shared
Bain Capital Ventures4 shared
Founders Fund4 shared
Definition Capital4 shared
Accel4 shared
Greenoaks Capital4 shared
8VC4 shared
CRV4 shared
Lightspeed Venture Partners3 shared
Thrive Capital3 shared
BOND3 shared
Y Combinator3 shared
Last updated: 8 September 2026