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Rainfall Ventures (formerly Vaizra Investments) is an early-stage venture capital firm based in New York that partners with world-class founders across a wide range of technology sectors including AI, fintech, digital assets, and e-commerce. The firm was rebranded from Vaizra Investments, which had been operating since 2011.
Average disclosed round size is $29.2M (across 39 rounds with reported amounts).
Portfolio
33
Fund Size
$10M
Top Stage
Seed
Last 12 Mo
1
Team
DB
David Berg
Partner
YR
Yair Riemer
Partner
JC
James Carlin
Investor
RR
Ron Rofe
Investor
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
40 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| Pre-Seed | $5.4M | Jan 2026 | |
| Series B | $20M | Oct 2022 | |
| HHelloalma Com | Series D | $130M | Aug 2022 |
| Series A | $65M | Jul 2022 | |
| Series A | $12M | Jul 2022 | |
| Series A | $42M | Jun 2022 | |
| Series A | $10M | Mar 2022 | |
| Seed | $6M | Feb 2022 | |
| Series B | $90M | Jan 2022 | |
| AAntic | Seed | $7M | Jan 2022 |
| CCastle Finance | Pre-Seed | $1.2M | Jan 2022 |
| Series C | $50M | Nov 2021 | |
| Series C | $50M | Aug 2021 | |
| HHelloalma Com | Series C | $50M | Aug 2021 |
| Series C | $60M | Jul 2021 | |
| Series B | $43M | May 2021 | |
| Series A | $6M | Apr 2021 | |
| Seed | $2M | Jan 2021 | |
| Pre-Seed | $6.3M | Jan 2021 | |
| PPrivacy.com | Series A | $10.2M | Jul 2020 |
| Seed | $4.1M | Jul 2020 | |
| Seed | $1.7M | Nov 2019 | |
| Seed | $5.5M | May 2019 | |
| Series A | $18.6M | May 2018 | |
| Seed | $2.8M | Mar 2016 |
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Top Co-Investors
Y Combinator9 shared
Tusk Venture Partners6 shared
BoxGroup6 shared
Lerer Hippeau5 shared
Sound Ventures5 shared
SV Angel4 shared
Sequoia Capital4 shared
Crosslink Capital4 shared
Index Ventures4 shared
Insight Partners4 shared
Bessemer Venture Partners4 shared
New Enterprise Associates3 shared
Soma Capital3 shared
Nexus Venture Partners3 shared
Primary Venture Partners3 shared
Optum Ventures3 shared
Stripes3 shared
Slow Ventures2 shared
Norwest Venture Partners2 shared
DCM Ventures2 shared
Last updated: 8 September 2026