Green Steel Environmental
PrivateLast Round
Seed
Aug 7, 2025
Est. Valuation
$7.5M
Total Funding Raised
$3.18M
Company Overview
Green Steel Environmental is a cleantech company that provides an upcycled, chemical-free additive for wastewater and biogas treatment to remove phosphorus and sulfur.
Sector
Energy & Sustainability
Verticals
Water Treatment, Circular Economy, Sustainable Materials, Waste Management
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Green Steel Environmental Comparables
Compare Green Steel Environmental with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| FerroBio Group | 78% | |
| Calpech, S.L. | 74% | |
| Q2 Technologies | 73% | |
Green Steel Environmental Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Aug 7, 2025 | ||||
| Accelerator | Mar 12, 2025 | ||||
| Seed | Jul 18, 2024 | ||||
| Grant | May 16, 2024 | ||||
| Grant | Nov 13, 2023 |
Green Steel Environmental Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Venture Partners at CU Boulder | Grant |
| Central Texas Angel Network | Seed |
| Rockies Venture Club | Seed |
| Colorado Office of Economic Development and International Trade | Grant |
| Cowtown Angels | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 7, 2025
$1.7M round led by Central Texas Angel Network
- May 16, 2024
$250K grant from Colorado Office of Economic Development and International Trade.
Green Steel Environmental Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Green Steel Environmental's valuation, stock price, and market status.