Exowatt
PrivateLast Round
Series A
Extension
Nov 13, 2025
Total Funding Raised
$140M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Exowatt is a renewable energy company that develops modular thermal energy storage systems designed to provide reliable, dispatchable power for energy-intensive applications such as data centers.
Sector
Energy & Sustainability
Verticals
Energy Storage, Renewable Energy, Cloud Infrastructure, Smart Grid
Business Model
B2B
Customer Profile
Services & Consulting, Hardware Sales
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Exowatt Comparables
Compare Exowatt with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Fourth Power | 68% | |
| Joulent | 64% | |
| Rondo Energy | 63% |
Exowatt Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A Extension | Nov 13, 2025 | ||||
| Debt | Apr 22, 2025 | ||||
| Series A | Apr 22, 2025 | ||||
| Seed | Apr 22, 2024 |
Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
OFFER | |||||
BID |
Exowatt Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Seed, Series A |
| Overmatch | Series A Extension |
| Manhattan Venture Partners | Series A Extension |
| Thrive Capital | Series A |
| StepStone Group | Series A |
| Climate Capital | Seed |
| DeepWork Capital | Series A Extension |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 20, 2026
Grew 16% QoQ, from 79 to 92 employees.
- Jun 1, 2026
Participating in an AWS inference fellowship program.
Recent news
Latest coverage and updates
- is_developingJul 1, 2026
Exowatt, Inc. is developing off-grid, behind-the-meter generation model on Jul 1st '26.
Exowatt 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.
Request accessFrequently Asked Questions
Common questions about Exowatt's valuation, stock price, and market status.
Is Exowatt a public or private company?
Exowatt is a private company.
What is the current stock price of Exowatt?
Exowatt is a private company with no public stock price. No recent secondary market data is available.
How much is Exowatt worth (valuation)?
Valuation information for Exowatt is not publicly available.
Can I buy Exowatt stock?
Exowatt shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Exowatt's last funding round?
Exowatt's most recent funding round was Series A Extension on November 13, 2025.
Who are the main investors in Exowatt?
Key investors in Exowatt include Manhattan Venture Partners, 8090 Industries, HSBC Innovation Banking, Felicis Ventures.
Will Exowatt IPO soon?
No public IPO plans have been announced for Exowatt.
How can I track Exowatt secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Exowatt's secondary market activity and sign up for updates.