Rainmaker Technology Corporation is a next-generation cloud seeding company in El Segundo, California. It flies weather-resistant drones into winter storm clouds and releases small quantities of silver iodide for ice crystals to form around, then measures the added precipitation with its own radar and validation systems — the measurement step that has historically been missing from cloud seeding. In 2026 it became, by its own account, the first private company to physically validate cloud seeding results: 82 unambiguous seeding signatures over four months and more than 145 million verified gallons of freshwater, followed in August by 19 million gallons in about three hours near Homer, Alaska. It operates in Utah, Idaho, Oregon, California and Colorado and sells multi-year service contracts to water agencies, irrigation districts and agricultural customers. The company expects its cost per acre-foot to undercut most alternative sources of new water, including desalination, by the November 2026-April 2027 season. Founder and CEO Augustus Doricko is a Thiel Fellow and UC Berkeley dropout. Water is the stated first focus, with hail damage and poor soil named as follow-on targets.
Climate📍 El Segundo, CAFounded 2023
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Rainmaker going public?
No. Rainmaker is private and has not filed to go public. There is no S-1 on file.
What is Rainmaker's valuation in 2026?
No confirmed valuation is on record for Rainmaker. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Rainmaker filed an S-1?
No public S-1 is on file for Rainmaker.
Who are Rainmaker's investors?
Rainmaker's investors include NOA VC, Upfront Ventures, DCVC, Lowercarbon Capital, Dream Ventures, Starship Ventures and 4 more.
How much has Rainmaker raised?
Rainmaker has raised $131.3M in total across 3 disclosed rounds, most recently a Series B of $100M in Sep 2026.
Is Rainmaker publicly traded — can you buy Rainmaker stock?
No. Rainmaker is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Rainmaker on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
CEO
Augustus Doricko
Founded
2023
HQ
El Segundo, CA
Employees
31
Total Raised
$131.3M
Growth
145M+ verified gallons from 82 validated seeding signatures (2026); 19M gallons in ~3 hours near Homer, Alaska (2026-08); operating in UT, ID, OR, CA, CO; Oregon's first precipitation-enhancement permit since 1976; a signed deal with one (unnamed) data-center provider and talks with Big Tech to seed near data centers (The Standard via Wowtale)
Last Round
Series B — $100M (Sep 2026)
IPO Status
private
Fundraising Status
Series B · $100M · 2 mo ago
privateTotal raised $131.3M3 disclosed rounds
Growth & Valuation
Capital raised per round
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Series B
$100M
Sep 2026
—
—
Series A
$25M
May 2025
Lowercarbon Capital
—
Seed
$6.3M
May 2024
—
—
Vertical Intelligence — Defense / Aerospace
Federal awards
66+
prime contracts, last 36 months
Obligated
$7.32M+
top: Department of Justice
Largest award
$344,713
Department of Justice
Latest award
2026-10-01
Largest award: NATIONAL MENU 4TH QTR FY24 (15B30224P00000377)
Name-verified against recipient "RAINMAKER, INC." on USASpending.gov as of 2026-10-30. Prime awards only — subcontracts and classified work are not visible in the public registry. Verify on USASpending.gov ↗
Talent Signal
Hiring trend
▼ Hiring downtrend
-32% vs 2026-09
Open roles
19
via ashby
Product-build share
42%
engineering, research, product, design
Trajectory
tightening
balanced build + GTM — 42% builders vs 58% go-to-market/G&A — scaling both sides.
Open roles trending down; no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Manager, GNC and Test EngineeringSoftware Engineer, ProductSoftware Engineer, InfrastructureSenior Mechanical EngineerElectrical EngineerSenior Electrical Engineer
Counted from Rainmaker's live job board as of 2026-10-24; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Founders & Key People
Augustus Doricko
Investors
NOA VC · Upfront Ventures · DCVC · Lowercarbon Capital · Dream Ventures · Starship Ventures · 1517 Fund · Long Journey Ventures · Day One Ventures · Tamarack Global
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.