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Sierra Ventures is an early-stage venture capital firm based in San Mateo, California, founded in 1982. The firm invests in next-generation enterprise and emerging technologies, including AI infrastructure, vertical AI, physical intelligence, and frontier/deep tech, from inception through Series A.
Deal activity increased 67% year-over-year (5 deals in the last 12 months). Average disclosed round size is $19.1M (across 135 rounds with reported amounts).
Portfolio
99
Fund Size
$265M
Top Stage
Series A
Last 12 Mo
7
Team
Ben Yu
Managing Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
141 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| SSedai | Series B | $20M | Jun 2026 |
| Seed | $17M | Apr 2026 | |
| Seed | $4.7M | Feb 2026 | |
| Unknown | $9.5M | Jan 2026 | |
| Series A | $13M | Jan 2026 | |
| Series B | $40M | Oct 2025 | |
| Unknown | $8M | Oct 2025 | |
| Series A | $8.7M | Jul 2025 | |
| Series B | $21M | May 2025 | |
| Series D | $105M | Feb 2025 | |
| Seed | $8M | Jan 2025 | |
| Series A | $10M | Jan 2025 | |
| Seed | $14.5M | Jan 2025 | |
| Unknown | $7M | Nov 2024 | |
| Series A | $13.5M | Aug 2024 | |
| Series A | — | Mar 2024 | |
| Series A | $13.5M | Feb 2024 | |
| Unknown | $7M | Jan 2024 | |
| Seed | $6.5M | Jan 2024 | |
| Unknown | $3.1M | Jan 2024 | |
| Series B | $40M | Dec 2023 | |
| Series D | $120M | Nov 2023 | |
| Series A | $14M | Oct 2023 | |
| Seed | $10.5M | Oct 2023 | |
| Series C | $25M | Jun 2023 |
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Top Co-Investors
Norwest Venture Partners7 shared
General Catalyst6 shared
Qualcomm Ventures6 shared
Translink Capital6 shared
Stripes5 shared
B Capital5 shared
Sorenson Capital5 shared
Cota Capital5 shared
India Quotient5 shared
Redpoint Ventures4 shared
Correlation Ventures4 shared
Service Provider Capital4 shared
Eniac Ventures4 shared
Mayfield Fund4 shared
Menlo Ventures3 shared
Lightspeed Venture Partners3 shared
Insight Partners3 shared
New Enterprise Associates3 shared
XYZ Venture Capital3 shared
Salesforce Ventures3 shared
Last updated: 7 September 2026