Startup profile for Rainmaker: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.

Startup profile · funding coverage

Rainmaker funding, valuation and investors

Drone-based cloud-seeding and weather-modification company.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series B

$100M · September 21, 2026

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$100M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

series b · United States

Sources: latest funding Last verified: 2026-09-25

Overview

Rainmaker develops weather-modification systems that combine autonomous aircraft, sensing and cloud-seeding operations.

Why Rainmaker is interesting

The company is applying venture capital to a regulated, scientifically contested water-supply market where real-world validation matters more than software-style growth claims.

Key facts

  • Latest financing: $100M (Series B)

Funding history (newest first)

Market / IPO context

Editorial / static context — not a live quote.

Related funding articles

Venture Capital Tracker pieces that cover Rainmaker's financing or category context.

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Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.