Avenir is a growth-focused investment firm that takes a first-principles approach to identify inevitable changes in large markets, building concentrated portfolios of dominant companies early in their growth trajectory. Founded in 2017 and based in New York, the firm backs category-defining companies across consumer, enterprise software, healthcare, AI, robotics, and energy sectors.
Average disclosed round size is $202.5M (across 60 rounds with reported amounts).
Portfolio
51
Fund Size
—
Top Stage
Growth
Last 12 Mo
10
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
72 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Ramp Network | Series F | $750M | Jun 2026 |
 Inference Research | Seed | $20M | Feb 2026 |
 Mytra | Series C | $120M | Jan 2026 |
 Kargo | Series B | — | Dec 2025 |
 Spinny | Series D | $160M | Dec 2025 |
 Ramp | Growth | — | Nov 2025 |
 Sublime Security | Series C | $60M | Oct 2025 |
 ShopMy | Growth | $70M | Oct 2025 |
 Base Power Company | Series C | $1B | Oct 2025 |
 Inspiren | Series B | $100M | Sep 2025 |
 Chai Discovery | Series A | — | Aug 2025 |
| Ramp | Growth | — | Jul 2025 |
 Castelion | Series B | $350M | Jul 2025 |
| Ramp | Series E | $200M | Jun 2025 |
 Rosebud AI | Seed | $6M | Jun 2025 |
| Inspiren | Series A | $35M | Mar 2025 |
| Ramp | Growth | $150M | Mar 2025 |
 SignalPlus | Series B | $11M | Jan 2025 |
 Carma | Series A | $52M | Jan 2025 |
 Rosebud | Seed | $6M | Jan 2025 |
 BVNK | Series B | $50M | Dec 2024 |
 Nivoda | Series B | — | Nov 2024 |
 Ziina | Series A | $22M | Sep 2024 |
 Zepto | Growth | — | Jun 2024 |
 Sigma Computing | Series D | $200M | May 2024 |
Page 1 of 3
Top Co-Investors
Tiger Global Management, LLC18 shared
Lightspeed Venture Partners15 shared
General Catalyst13 shared
Thrive Capital11 shared
D1 Capital Partners10 shared
Founders Fund10 shared
8VC9 shared
137 Ventures9 shared
Lux Capital9 shared
Bessemer Venture Partners8 shared
Definition Capital7 shared
Coatue Management LLC7 shared
Khosla Ventures7 shared
Iconiq Capital, LLC6 shared
Sands Capital6 shared
Stripes5 shared
GIC Private Limited5 shared
1789 Capital5 shared
Greenoaks Capital5 shared
Altimeter Capital Management, LP5 shared
Last updated: 7 October 2026