Grolltex
PrivateLast Round
Convertible Debt
Sep 9, 2019
Est. Valuation
$10M
Total Funding Raised
$1.6M
Company Overview
Grolltex is a nanotechnology company that develops and manufactures single-layer graphene and other 2D materials for use in sensors, electronics, and solar cells.
Sector
Frontier & Industrial Tech
Verticals
Advanced Materials, Semiconductors, Sensors, Biotechnology
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Grolltex Comparables
Compare Grolltex with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Graphenea | 88% | |
| General Graphene | 84% | |
| Graphene Square Inc. | 83% | |
Grolltex Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Convertible Debt | Sep 9, 2019 | ||||
| SAFE | Sep 18, 2017 | ||||
| Seed | Mar 14, 2016 |
Key People
Founding team and executive leadership
Grolltex Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| EvoNexus | Seed |
| Vertical Venture Partners | SAFE, Seed |
| TCA Venture Group | SAFE |
Market signals
Structured signals derived from secondary market and firmographic data.
- Nov 9, 2025
Monthly visitors grew 63% MoM, from 866 to 1.4K.
- May 2, 2025
Monthly visitors increased 60% MoM.
Grolltex 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 Grolltex's valuation, stock price, and market status.