Minus Materials
PrivateLast Round
Grant
Jun 24, 2024
Total Funding Raised
$3.99M
Company Overview
Minus Materials operates in Energy & Sustainability and is based in Boulder, Colorado. Its latest recorded funding round was a Grant round in June 2024.
Minus Materials is a building products company that develops cement and concrete technology to produce carbon-negative limestone using microalgae.
Sector
Energy & Sustainability
Verticals
Sustainable Materials, Carbon Capture, Advanced Materials, Green Building, Construction Tech
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Minus Materials Comparables
Compare Minus Materials with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Prometheus Materials | 89% | |
| Brimstone | 79% | |
| Biomason | 78% |
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Minus Materials Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Jun 24, 2024 | ||||
| Grant | Oct 1, 2022 | ||||
| Grant | Sep 1, 2022 | ||||
| Accelerator | Aug 12, 2022 | ||||
| Pre Seed | Nov 23, 2020 |
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Minus Materials Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Venture Partners at CU Boulder | Pre Seed |
| Breakthrough Energy Foundation | Grant |
| IndieBio | Accelerator |
| US Department of Energy (ARPA-E) | Grant |
| 4 Corners Carbon Coalition | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jan 20, 2026
Monthly visitors grew 53% MoM, from 649 to 990.
- Nov 7, 2025
Monthly visitors grew 107% MoM.
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Minus Materials 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 Minus Materials's valuation, stock price, and market status.
Is Minus Materials a public or private company?
Minus Materials is a private company.
What is the current stock price of Minus Materials?
Minus Materials is a private company, so its shares have no public market price. Caplight tracks Minus Materials's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Minus Materials worth (valuation)?
Valuation information for Minus Materials is not publicly available.
Can I buy Minus Materials stock?
Minus Materials shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Minus Materials's last funding round?
Minus Materials's most recent funding round was Grant on June 24, 2024.
Who are the main investors in Minus Materials?
Key investors in Minus Materials include Venture Partners at CU Boulder, Breakthrough Energy Foundation, IndieBio, US Department of Energy (ARPA-E), 4 Corners Carbon Coalition.
Will Minus Materials IPO soon?
No public IPO plans have been announced for Minus Materials.
How can I track Minus Materials secondary market activity?
Caplight tracks bids, offers, and trades in Minus Materials's shares on secondary markets.