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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 $39.5M (across 57 rounds with reported amounts).
Portfolio
42
Fund Size
$10M
Top Stage
Seed
Last 12 Mo
0
Team
RR
Ron Rofe
Managing Partner
SK
Shlomo Kalish
Managing Partner
YR
Yair Riemer
Partner
JC
James Carlin
Investor
RR
Ron Rofe
Investor
BZ
Benjamin Zeitz
Investments
PN
Philip Neff
Investments
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
59 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Stendr | Pre-Seed | $5.4M | Jan 2026 |
 Unito Inc. | Series B | $20M | Oct 2022 |
| HHelloalma Com | Series D | $130M | Aug 2022 |
 Unstoppable Domains | Series A | $65M | Jul 2022 |
 Arist | Series A | $12M | Jul 2022 |
 Liblab | Series A | $42M | Jun 2022 |
| CCastle Finance | Pre-Seed | $1.2M | May 2022 |
 LILA Games | Series A | $10M | Mar 2022 |
 Permit.io | Seed | $6M | Feb 2022 |
 Novo | Series B | $90M | Jan 2022 |
| AAntic | Seed | $7M | Jan 2022 |
| CCastle Finance | Pre-Seed | $1.2M | Jan 2022 |
| Unito Inc. | Series D | $20M | Jan 2022 |
 Block | Series C | $50M | Nov 2021 |
 Alma | Series C | $50M | Aug 2021 |
| HHelloalma Com | Series C | $50M | Aug 2021 |
 Alma | Series C | $50M | Aug 2021 |
 Lithic | Series C | $60M | Jul 2021 |
| Lithic | Series B | $43M | May 2021 |
 Blair | Unknown | $6.3M | May 2021 |
 Curri | Series A | $6M | Apr 2021 |
 Carrd | Seed | $2M | Jan 2021 |
| Blair | Pre-Seed | $6.3M | Jan 2021 |
 Privacy.com | Series A | $10.2M | Jul 2020 |
 SIMULATE | Seed | $4.1M | Jul 2020 |
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Top Co-Investors
BoxGroup11 shared
Y Combinator10 shared
Lerer Hippeau7 shared
Sequoia Capital7 shared
Crosslink Capital7 shared
Tusk Venture Partners7 shared
Sound Ventures7 shared
Techstars7 shared
SV Angel5 shared
Index Ventures5 shared
Insight Partners5 shared
Bessemer Venture Partners5 shared
Primary Venture Partners4 shared
Optum Ventures4 shared
Valar Ventures4 shared
Slow Ventures3 shared
New Enterprise Associates3 shared
QueensBridge Venture Partners3 shared
Soma Capital3 shared
Nexus Venture Partners3 shared
Last updated: 20 October 2026