Steelhead Composites
PrivateLast Round
Seed Round
Jun 24, 2026
Est. Valuation
$58.8M
Total Funding Raised
$15.5M
Momentum
Top 50%
of companies Caplight tracks
Company Overview
Steelhead Composites is an aerospace and defense company that manufactures lightweight composite overwrapped pressure vessels for high-pressure storage of hydrogen and other gasses.
Sector
Frontier & Industrial Tech
Verticals
Advanced Materials, Clean Transportation, Alternative Fuels, Energy Storage, Space Technology
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.
Steelhead Composites Comparables
Compare Steelhead Composites with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Infinite Composites Technologies | 86% | |
| Quantum Fuel Systems | 83% | |
| Composite Advanced Technologies | 79% | |
Steelhead Composites Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed Round | Jun 24, 2026 | ||||
| Early Funding | Sep 3, 2024 | ||||
| Growth Equity | Jul 1, 2023 | ||||
| Series A | May 1, 2021 | ||||
| Grant | Aug 27, 2013 |
Steelhead Composites Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Sutton Capital | Growth Equity |
| GVC Capital | Growth Equity |
| Keiretsu Forum | Series A, Growth Equity |
| John Lilly Strategic Insights, LLC | Growth Equity |
| 3D Ventures | Growth Equity |
| Altitude Ventures | Growth Equity |
| Lateral Capital | Growth Equity |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jun 24, 2026
$750K raised in Seed Round.
- Nov 7, 2025
Monthly visitors increased 43% MoM.
Steelhead Composites 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 Steelhead Composites's valuation, stock price, and market status.