Elstor Oy
PrivateLast Round
Accelerator
Jul 14, 2025
Total Funding Raised
$4.64M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Elstor Oy operates in Energy & Sustainability and is based in Lappeenranta. Its latest recorded funding round was a Debt round in October 2021.
Elstor Oy is a clean energy technology company that develops and manufactures thermal energy storage systems for industrial steam and heat production.
Sector
Energy & Sustainability
Verticals
Energy Storage, Renewable Energy, Energy Management, Smart Grid, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Elstor Oy Comparables
Compare Elstor Oy with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Polar Night Energy | 87% | |
| Kraftblock | 85% | |
| Brenmiller Energy | 81% |
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Elstor Oy Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Accelerator | Jul 14, 2025 | ||||
| Debt | Oct 5, 2021 |
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Key People
Founding team and executive leadership
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Elstor Oy Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| The Finnish Climate Fund | Debt |
| The Clean Fight | Accelerator |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 22, 2026
Monthly visitors increased 1136% MoM.
- Jun 23, 2026
Monthly visitors increased 35% MoM, reaching 2.1K.
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Elstor Oy 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 Elstor Oy's valuation, stock price, and market status.
Is Elstor Oy a public or private company?
Elstor Oy is a private company.
What is the current stock price of Elstor Oy?
Elstor Oy is a private company, so its shares have no public market price. Caplight tracks Elstor Oy's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Elstor Oy worth (valuation)?
Valuation information for Elstor Oy is not publicly available.
Can I buy Elstor Oy stock?
Elstor Oy shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Elstor Oy's last funding round?
Elstor Oy's most recent funding round was Accelerator on July 14, 2025.
Who are the main investors in Elstor Oy?
Key investors in Elstor Oy include The Finnish Climate Fund.
Will Elstor Oy IPO soon?
No public IPO plans have been announced for Elstor Oy.
How can I track Elstor Oy secondary market activity?
Caplight tracks bids, offers, and trades in Elstor Oy's shares on secondary markets.