Atmo
PrivateLast Round
M&A
Jun 17, 2026
Est. Valuation
$70M
Total Funding Raised
$5.41M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Atmo operates in Frontier & Industrial Tech and is based in San Francisco, California. Its latest recorded funding round was a Grant round in January 2024.
Atmo is an artificial intelligence company that provides a weather forecasting platform for governments, militaries, and enterprises.
Sector
Frontier & Industrial Tech
Verticals
Defense Tech, Environmental Monitoring, Aviation & Drones
Business Model
B2B
Customer Profile
Government Contracts, Subscription SaaS, Hardware + Subscription
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Atmo Comparables
Compare Atmo with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| PurpleAir | 83% | |
| WindBorne Systems | 83% | |
| Awair | 83% |
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Atmo Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| M&A | Jun 17, 2026 | ||||
| Grant | Jan 29, 2024 | ||||
| Grant | Nov 1, 2022 | ||||
| Seed | Nov 19, 2020 | ||||
| Accelerator | Mar 16, 2020 |
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Key People
Founding team and executive leadership
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Atmo Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Climate Capital | Seed |
| United States Air Force | Grant |
| Sound Ventures | Seed |
| Y Combinator | Seed, Accelerator |
| U.S. Navy | Grant |
| Signia Venture Partners | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors increased 39% MoM.
- Jun 19, 2026
Monthly visitors grew 44% MoM, reaching 10.7K.
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Recent news
Latest coverage and updates
- recognized_asNov 4, 2026
TIME recognizes Atmo's AI weather model as one of the Best Inventions of 2024, citing technology that runs forecasts 40,000 times faster and 50% more accurately than traditional numerical weather prediction.
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Atmo 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 Atmo's valuation, stock price, and market status.
Is Atmo a public or private company?
Atmo is a private company.
What is the current stock price of Atmo?
Atmo is a private company, so its shares have no public market price. Caplight tracks Atmo's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Atmo worth (valuation)?
Atmo's valuation is estimated at $70.0M based on funding round data.
Can I buy Atmo stock?
Atmo shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Atmo's last funding round?
Atmo's most recent funding round was M&A on June 17, 2026.
Who are the main investors in Atmo?
Key investors in Atmo include United States Air Force, Y Combinator, U.S. Navy.
Will Atmo IPO soon?
No public IPO plans have been announced for Atmo.
How can I track Atmo secondary market activity?
Caplight tracks bids, offers, and trades in Atmo's shares on secondary markets.