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, Sensors, Clean Manufacturing
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
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 Grolltex's valuation, stock price, and market status.
Is Grolltex a public or private company?
Grolltex is a private company.
What is the current stock price of Grolltex?
Grolltex is a private company with no public stock price. No recent secondary market data is available.
How much is Grolltex worth (valuation)?
Grolltex's valuation is estimated at $10.0M based on funding round data.
Can I buy Grolltex stock?
Grolltex shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was Grolltex's last funding round?
Grolltex's most recent funding round was Convertible Debt on September 18, 2017.
Who are the main investors in Grolltex?
Key investors in Grolltex include EvoNexus, Vertical Venture Partners, TCA Venture Group.
Will Grolltex IPO soon?
No public IPO plans have been announced for Grolltex.
How can I track Grolltex secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Grolltex's secondary market activity and sign up for updates.