Rainmaker
PrivateLast Round
Series B
Sep 21, 2026
Est. Valuation
$3.8B
Total Funding Raised
$343.3M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Rainmaker operates in Energy & Sustainability and is based in El Segundo, California. Its latest recorded funding round was a Series B round in September 2026.
Rainmaker is an environmental services company that provides precipitation enhancement technology using drone-based cloud seeding, advanced radar, and numerical weather modeling to address water scarcity.
Sector
Energy & Sustainability
Verticals
Drones & UAVs, Environmental Monitoring
Business Model
B2B
Customer Profile
Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Rainmaker Comparables
Compare Rainmaker with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Recast Systems | 79% | |
| Seeding Operations and Atmospheric Research | 79% | |
| Weather Modification, Inc. | 77% |
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Rainmaker Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Sep 21, 2026 | ||||
| Strategic | Nov 13, 2025 | ||||
| Series A | May 5, 2025 | ||||
| Seed | May 7, 2024 |
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Key People
Founding team and executive leadership
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Rainmaker Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Starship Ventures | Seed, Series A |
| 1517 Fund | Seed, Series A |
| Noa | Series B |
| Upfront Ventures | Series B |
| Dream Ventures | Series B |
| noa | Series B |
| Long Journey Ventures | Series A, Seed |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 21, 2026
$100M round led by noa.
- May 5, 2025
$25M round led by Lowercarbon Capital.
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Rainmaker Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Rainmaker's valuation, stock price, and market status.
Is Rainmaker a public or private company?
Rainmaker is a private company.
What is the current stock price of Rainmaker?
Rainmaker is a private company, so its shares have no public market price. Caplight tracks Rainmaker's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Rainmaker worth (valuation)?
Rainmaker's valuation is estimated at $3.8B based on funding round data.
Can I buy Rainmaker stock?
Rainmaker shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Rainmaker's last funding round?
Rainmaker's most recent funding round was Series B on September 21, 2026.
Who are the main investors in Rainmaker?
Key investors in Rainmaker include noa, Long Journey Ventures, Lowercarbon Capital, Day One Ventures.
Will Rainmaker IPO soon?
No public IPO plans have been announced for Rainmaker.
How can I track Rainmaker secondary market activity?
Caplight tracks bids, offers, and trades in Rainmaker's shares on secondary markets.