PolyJoule
PrivateLast Round
Accelerator
Aug 14, 2024
Total Funding Raised
$1.03M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
PolyJoule operates in Energy & Sustainability and is based in Billerica, Massachusetts. Its latest recorded funding round was an Accelerator round in August 2024.
PolyJoule is an energy storage company that develops conductive polymer battery technology for safe, sustainable, and long-lasting stationary energy storage applications.
Sector
Energy & Sustainability
Verticals
Energy Storage, Advanced Materials, Smart Grid
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
PolyJoule Comparables
Compare PolyJoule with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Urban Electric Power | 82% | |
| Ambri | 81% | |
| Alsym Energy | 81% |
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PolyJoule Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Accelerator | Aug 14, 2024 | ||||
| Grant | Feb 2, 2024 | ||||
| Grant | Aug 17, 2023 |
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Key People
Founding team and executive leadership
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PolyJoule Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| NYSERDA | Grant |
| The Jeremy and Hannelore Grantham Environmental Trust | Series A |
| Vinyl Institute | Grant |
| AWS Clean Energy Accelerator | Accelerator |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 25, 2026
Monthly visitors grew 91% MoM, reaching 4.8K.
- Jun 18, 2026
Monthly visitors increased 87% MoM.
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PolyJoule 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 PolyJoule's valuation, stock price, and market status.
Is PolyJoule a public or private company?
PolyJoule is a private company.
What is the current stock price of PolyJoule?
PolyJoule is a private company, so its shares have no public market price. Caplight tracks PolyJoule's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is PolyJoule worth (valuation)?
Valuation information for PolyJoule is not publicly available.
Can I buy PolyJoule stock?
PolyJoule shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was PolyJoule's last funding round?
PolyJoule's most recent funding round was Accelerator on August 14, 2024.
Who are the main investors in PolyJoule?
Key investors in PolyJoule include NYSERDA, The Jeremy and Hannelore Grantham Environmental Trust, Vinyl Institute, AWS Clean Energy Accelerator.
Will PolyJoule IPO soon?
No public IPO plans have been announced for PolyJoule.
How can I track PolyJoule secondary market activity?
Caplight tracks bids, offers, and trades in PolyJoule's shares on secondary markets.