Clean Energy Systems, Inc.
PrivateLast Round
Series A
Sep 29, 2021
Total Funding Raised
$51.5M
Momentum
Top 50%
of companies Caplight tracks
Company Overview
Clean Energy Systems, Inc. operates in Energy & Sustainability and is based in Rancho Cordova, California. Its latest recorded funding round was a Series A round in September 2021.
Clean Energy Systems, Inc. is a clean energy technology company that develops and deploys oxy-combustion power generation systems based on rocket engine combustion principles for carbon-reducing energy applications.
Sector
Energy & Sustainability
Verticals
Carbon Capture, Clean Manufacturing
Business Model
B2B
Customer Profile
Services & Consulting, Government Contracts
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Clean Energy Systems, Inc. Comparables
Compare Clean Energy Systems, Inc. with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Jupiter Oxygen Corporation | 85% | |
| NET Power Inc. | 76% | |
| SK | 75% |
For institutional investors. Book with your work email.
Clean Energy Systems, Inc. Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Sep 29, 2021 | ||||
| Grant | Sep 10, 2010 |
For institutional investors. Book with your work email.
Clean Energy Systems, Inc. Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Carbon Direct Capital Management | Series A |
| State of California | Grant |
| California Energy Commission | Grant |
| Department of Energy | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 26, 2026
Monthly visitors increased 71% MoM, reaching 1K.
- Nov 5, 2024
Grew 30% QoQ, from 27 to 35 employees.
For institutional investors. Book with your work email.
Clean Energy Systems, Inc. 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.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about Clean Energy Systems, Inc.'s valuation, stock price, and market status.
Is Clean Energy Systems, Inc. a public or private company?
Clean Energy Systems, Inc. is a private company.
What is the current stock price of Clean Energy Systems, Inc.?
Clean Energy Systems, Inc. is a private company, so its shares have no public market price. Caplight tracks Clean Energy Systems, Inc.'s secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Clean Energy Systems, Inc. worth (valuation)?
Valuation information for Clean Energy Systems, Inc. is not publicly available.
Can I buy Clean Energy Systems, Inc. stock?
Clean Energy Systems, Inc. shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Clean Energy Systems, Inc.'s last funding round?
Clean Energy Systems, Inc.'s most recent funding round was Series A on September 29, 2021.
Who are the main investors in Clean Energy Systems, Inc.?
Key investors in Clean Energy Systems, Inc. include Carbon Direct Capital Management, State of California, California Energy Commission, Department of Energy.
Will Clean Energy Systems, Inc. IPO soon?
No public IPO plans have been announced for Clean Energy Systems, Inc..
How can I track Clean Energy Systems, Inc. secondary market activity?
Caplight tracks bids, offers, and trades in Clean Energy Systems, Inc.'s shares on secondary markets.