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.
31% of their portfolio is in Fintech. Average disclosed round size is $188.2M (across 73 rounds with reported amounts).
Portfolio
57
Fund Size
—
Top Stage
Series B
Last 12 Mo
12
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
88 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Current | Series E | $80M | Jun 2026 |
 Ramp Network | Series F | $750M | Jun 2026 |
 Ramp | Series F | $750M | Jun 2026 |
 Sigma Computing | Series E | $80M | May 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 |
 Rosebud | 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 |
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Top Co-Investors
Tiger Global Management, LLC24 shared
Lightspeed Venture Partners18 shared
General Catalyst16 shared
D1 Capital Partners13 shared
Thrive Capital13 shared
Founders Fund12 shared
8VC11 shared
Coatue Management LLC10 shared
137 Ventures10 shared
Lux Capital9 shared
Khosla Ventures9 shared
Bessemer Venture Partners9 shared
Definition Capital8 shared
Iconiq Capital, LLC8 shared
Sands Capital8 shared
1789 Capital7 shared
Altimeter Capital Management, LP7 shared
Spark Capital7 shared
T. Rowe Price6 shared
Greenoaks Capital6 shared
Last updated: 20 October 2026