Addition is an American venture capital firm based in New York City, founded in 2020 by former Tiger Global executive Lee Fixel. The firm invests in founder-led, technology-enabled companies across early and growth stages.
Deal activity increased 56% year-over-year (14 deals in the last 12 months). Average disclosed round size is $115.2M (across 160 rounds with reported amounts).
Portfolio
104
Fund Size
$1.5B
Top Stage
Series B
Last 12 Mo
14
Team
AS
Aaron Schildkrout
Investor
JS
Jack Spiegel
Venture Capital and Growth Equity
RC
Roshni Chandwani
Investor
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
185 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Base Power | Series D | $1B | Aug 2026 |
 Lumilens | Seed | $700M | Aug 2026 |
 Next Chapter | Series E | $100M | Apr 2026 |
 Stedi | Series C | $50M | Mar 2026 |
 Frore Systems | Series D | $143M | Mar 2026 |
 Xscape Photonics | Series A | $37M | Mar 2026 |
 Ernesta | Series B | $20M | Mar 2026 |
| Base Power | Series D | $1B | Jan 2026 |
| Lumilens | Series C | $700M | Jan 2026 |
 Airwallex | Series H | $320M | Jan 2026 |
 Anthropic | Series G | — | Jan 2026 |
| AAnthropic, PBC | Series G | — | Jan 2026 |
| HHello Vet | Series A | — | Dec 2025 |
 CloudX | Series A | $30M | Nov 2025 |
 Base Power Company | Series C | $1B | Oct 2025 |
| Base Power | Series C | — | Oct 2025 |
 Modern Animal | Series C | $46M | Sep 2025 |
 PassiveLogic | Series C | — | Sep 2025 |
 Maybell Quantum | Series B | $40M | Sep 2025 |
 Intuit | Series F | $600M | Jun 2025 |
 Snorkel AI | Series D | — | May 2025 |
| Base Power Company | Series B | $200M | Apr 2025 |
 Tines | Series C | $125M | Feb 2025 |
 SuperOps | Series C | — | Jan 2025 |
 Render | Series C | $80M | Jan 2025 |
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Top Co-Investors
Coatue Management LLC21 shared
General Catalyst20 shared
Tiger Global Management, LLC20 shared
Accel18 shared
Lightspeed Venture Partners18 shared
Lux Capital17 shared
Andreessen Horowitz15 shared
Valor Equity Partners14 shared
Y Combinator14 shared
Greylock Partners12 shared
GV12 shared
Spark Capital11 shared
Altimeter Capital Management, LP11 shared
Thrive Capital11 shared
Founders Fund10 shared
Madrona Venture Group10 shared
Ribbit Capital10 shared
Sequoia Capital8 shared
Boldstart Ventures8 shared
Last updated: 27 September 2026