6K
PrivateLast Round
Debt
Oct 2, 2026
Total Funding Raised
$377.45M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
6K operates in Frontier & Industrial Tech and is based in North Andover, Massachusetts. Its latest recorded funding round was a Debt round in October 2026.
6K is a nanotechnology company that develops advanced microwave-based plasma technology to transform the production processes of nanomaterials and engineered powders for industries such as additive manufacturing and battery storage.
Sector
Frontier & Industrial Tech
Verticals
Advanced Materials, 3D Printing, Energy Storage, Circular Economy, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts, Services & Consulting
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
6K Comparables
Compare 6K with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Tekna | 79% | |
| Continuum Powders | 78% | |
| Elementum 3D | 76% |
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6K Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Debt | Oct 2, 2026 | ||||
| Grant | Dec 15, 2025 | ||||
| Series E | Sep 5, 2024 | ||||
| Grant | Dec 8, 2023 | ||||
| Grant | Oct 19, 2022 | ||||
Series D | Apr 14, 2022 |
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Key People
Founding team and executive leadership
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6K Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| HG Ventures | Series D |
| KLP Ventures | Series B |
| Volta Energy Technologies | Series E, Series C |
| Massachusetts Development Finance Agency | Series B, Debt |
| Stellantis Ventures | Series D |
| Material Impact | Series C, Series B Extension, Series B, Series E |
| Export-Import Bank of the United States | Debt |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 2, 2026
$27M raised from the Export-Import Bank of the United States.
- Sep 1, 2026
Open roles increased to 281, 185% of headcount.
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Recent news
Latest coverage and updates
- receives_financingNov 5, 2026
On Nov 5th '26, 6K Inc. receives a $250M conditional loan commitment from the Defense Department's Office of Strategic Capital to scale its advanced battery materials production facility in Tennessee and reduce foreign dependencies.
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6K 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 6K's valuation, stock price, and market status.
Is 6K a public or private company?
6K is a private company.
What is the current stock price of 6K?
6K is a private company, so its shares have no public market price. Caplight tracks 6K's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is 6K worth (valuation)?
Valuation information for 6K is not publicly available.
Can I buy 6K stock?
6K shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was 6K's last funding round?
6K's most recent funding round was Debt on October 2, 2026.
Who are the main investors in 6K?
Key investors in 6K include Volta Energy Technologies, Massachusetts Development Finance Agency, U.S. Department of War, Anzu Partners, Defense Logistics Agency.
Will 6K IPO soon?
No public IPO plans have been announced for 6K.
How can I track 6K secondary market activity?
Caplight tracks bids, offers, and trades in 6K's shares on secondary markets.