Prometheus Materials
PrivateLast Round
Grant
Nov 7, 2024
Total Funding Raised
$14.25M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Prometheus Materials is a clean-tech company that provides sustainable building materials using microalgae to produce a carbon-negative bio-cement.
Sector
Energy & Sustainability
Verticals
Advanced Materials, Sustainable Materials, Construction Tech, Carbon Capture, Biotechnology
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Prometheus Materials Comparables
Compare Prometheus Materials with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Minus Materials | 89% | |
| Sublime Systems | 87% | |
| Biozeroc | 86% |
Prometheus Materials Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Nov 7, 2024 | ||||
| Debt | Jul 9, 2024 | ||||
| Series A | Jun 6, 2022 |
Key People
Founding team and executive leadership
Prometheus Materials Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Autodesk Foundation | Series A |
| Sofinnova Partners | Series A |
| Department of Energy | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors increased 93% MoM.
- Feb 20, 2025
Construction industry product now available after scaling production.
Recent news
Latest coverage and updates
- hiresSep 30, 2026
Prometheus Materials, Inc. appointed Alan Wessel to its Board of Directors on Sep 30th '26 in Colorado to support the commercial scale-up of its carbon-negative cement technology.
- hiresSep 30, 2026
Prometheus Materials, Inc. appointed Brian Chapman, PhD, as Director of Technology to support the commercial scale-up of its carbon-negative cement technology in Colorado on Sep 30th '26.
- hiresSep 30, 2026
Prometheus Materials, Inc. appointed Filiberto Ruiz to its Board of Directors in Colorado on Sep 30th '26.
- receives_awardSep 9, 2026
Prometheus Materials, Inc. submits for the Industrial Decarbonization Project of the Year, an award recognizing large-scale initiatives with measurable decarbonization impact.
Prometheus 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.
Request accessFrequently Asked Questions
Common questions about Prometheus Materials's valuation, stock price, and market status.
Is Prometheus Materials a public or private company?
Prometheus Materials is a private company.
What is the current stock price of Prometheus Materials?
Prometheus Materials is a private company, so its shares have no public market price. Caplight tracks Prometheus Materials's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Prometheus Materials worth (valuation)?
Valuation information for Prometheus Materials is not publicly available.
Can I buy Prometheus Materials stock?
Prometheus Materials shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Prometheus Materials's last funding round?
Prometheus Materials's most recent funding round was Grant on November 7, 2024.
Who are the main investors in Prometheus Materials?
Key investors in Prometheus Materials include Sofinnova Partners, Department of Energy.
Will Prometheus Materials IPO soon?
No public IPO plans have been announced for Prometheus Materials.
How can I track Prometheus Materials secondary market activity?
Caplight tracks bids, offers, and trades in Prometheus Materials's shares on secondary markets.