
Heavybit is a San Francisco-based early-stage venture capital firm and the leading investor in enterprise infrastructure, backing developer-first startups from day zero. Founded in 2013, the firm provides capital and hands-on go-to-market support to technical founders building cloud-native infrastructure, DevOps, DevSecOps, and AI-native solutions.
38% of their portfolio is in Developer Tools. Deal activity increased 167% year-over-year (8 deals in the last 12 months). Average disclosed round size is $21.3M (across 47 rounds with reported amounts).
Portfolio
38
Fund Size
$180M
Top Stage
Seed
Last 12 Mo
8
Team
James Lindenbaum
Founding Partner
Diana Reyes
Office Manager & Executive Assistant
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
50 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Series C | $100M | Jul 2026 | |
| RReo | Series A | $11.3M | Jul 2026 |
| Pre-Seed | $3M | May 2026 | |
| Seed | $7.8M | Feb 2026 | |
| Unknown | $4.5M | Jan 2026 | |
| RReo | Seed | — | Nov 2025 |
| Seed | $10M | Nov 2025 | |
| Seed | $4M | Oct 2025 | |
| Growth | — | Apr 2025 | |
| Series A | $10M | Jan 2025 | |
| Seed | $5M | Nov 2024 | |
| Series A | $25M | Nov 2024 | |
| SSanity.io | Series C | $85M | Jan 2024 |
| Series A | $25M | Jan 2024 | |
| Series B | — | Dec 2023 | |
| Seed | $3.1M | Nov 2022 | |
| MMetrist | Seed | $5.5M | Nov 2022 |
| JJeli | Series A | $15M | Sep 2022 |
| Series A | $20M | Sep 2022 | |
| Series A | $12.5M | Aug 2022 | |
| Series B | $100M | May 2022 | |
| Series C | $55M | Feb 2022 | |
| Series A | $12.5M | Jan 2022 | |
| Series A | $20M | Jan 2022 | |
| Series B | $35M | Sep 2021 |
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Top Co-Investors
Insight Partners6 shared
Accel6 shared
Harrison Metal5 shared
GGV Capital5 shared
Y Combinator5 shared
CRV5 shared
Boldstart Ventures5 shared
Threshold Ventures4 shared
Uncork Capital4 shared
Industry Ventures3 shared
Top Tier Capital Partners3 shared
Scale Venture Partners3 shared
Baseline Ventures3 shared
Two Sigma Ventures3 shared
Zeev Ventures3 shared
Angular Ventures3 shared
Jibe Ventures3 shared
Uncorrelated Ventures3 shared
Owl Rock3 shared
GG13 shared
Last updated: 7 October 2026