Rainmaker Technology Corporation
Rainmaker Raises $100M Series B for Weather Modification and Water Production
Rainmaker Technology Corporation announced $100M in Series B financing on September 21, 2026. Rainmaker raised a $100 million Series B to expand atmospheric research and reduce the cost of producing freshwater through cloud seeding.
Round details
The financing includes backing from NOA VC, Upfront Ventures, DCVC, Lowercarbon Capital, Dream Ventures. The company did not publish a valuation with the announcement.
- Round: Series B
- Capital announced: $100M
- Headquarters: El Segundo, CA
How the company plans to use the capital
Rainmaker will rapidly expand its atmospheric research team, support weather-modification work at national laboratories and American universities, and improve the systems used to select clouds, deploy seeding material, and measure precipitation outcomes.
Why this matters for GTM teams
The financing highlights growing private investment in water resilience, measurement-led climate technology, and operational systems designed to turn atmospheric science into a repeatable service.
Fresh capital is often an operational signal rather than a buying signal by itself. Teams should validate the company’s hiring pattern, product launches, geographic expansion, and technology priorities before choosing the message and timing of outreach.
Source and methodology
This report is based on the company’s announcement and records the disclosed amount, round, investors, location, and stated use of funds. SalesTools Research does not estimate undisclosed valuation or revenue figures.
Primary source: Rainmaker Series B announcement.
Company Info
Investors (5)
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