Steelhead Composites Overview

  • Year Founded
  • 2012

Year Founded

  • Status
  • Private

  • Employees
  • 30

Employees

  • Latest Deal Type
  • Later Stage VC

  • Latest Deal Amount
  • $750K

  • Investors
  • 24

Steelhead Composites General Information

Description

Manufacturer of composite overwrapped pressure vessels intended to provide lightweight, high-pressure storage for propulsion, life support, and energy systems in demanding environments. The company offers vertically integrated manufacturing with in-house liner spinforming, filament winding, precision machining, and full qualification testing, enabling aerospace, defense, mobility, underwater, and satellite operators to deploy flight-qualified storage hardware capable of scaling from prototyping to full production.

Contact Information

Ownership Status
Privately Held (backing)
Financing Status
Venture Capital-Backed
Corporate Office
  • 500 Corporate Circle
  • Suite O
  • Golden, CO 80401
  • United States
+1 (720)
Primary Industry
Other Commercial Products
Other Industries
Energy Storage
Other Equipment
Corporate Office
  • 500 Corporate Circle
  • Suite O
  • Golden, CO 80401
  • United States
+1 (720)

Steelhead Composites Timeline

2023202420252026
Financing RoundCaptured Employee CountEstimated Employee Growth

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Steelhead Composites Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
12. Later Stage VC 12-Jun-2026 $750K Completed Generating Revenue
11. Later Stage VC 06-Nov-2025 Completed Generating Revenue
10. Later Stage VC (Series A1) 26-Aug-2024 Completed Generating Revenue
9. Later Stage VC (Series A) 01-Oct-2023 Completed Generating Revenue
8. Later Stage VC (Series A) 26-May-2022 Completed Generating Revenue
7. Later Stage VC 13-Jul-2021 Completed Generating Revenue
6. Seed Round 04-Jan-2021 Completed Generating Revenue
5. Debt - General 10-Oct-2017 Completed Generating Revenue
4. Seed Round 30-Apr-2014 $4.4M $5.9M Completed Startup
3. Secondary Transaction - Private 31-Dec-2013 $1.5M Completed Startup
To view Steelhead Composites’s complete valuation and funding history, request access »

Steelhead Composites Cap Table

Stock # of Shares
Authorized
Par Value Dividend Rate (%) Original
Issue Price
Liquidation Liquidation
Pref. Multiple
Conversion Price % Owned
Series A-1
Series A
Seed-2 2,145,037 $0.000100 $2.45 $2.45 1x $2.45 10.83%
Seed-1 2,188,000 $0.000100 $1 $1 1x $1 11.05%
To view Steelhead Composites’s complete cap table history, request access »

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Steelhead Composites Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Manufacturer of composite overwrapped pressure vessels intended to provide lightweight, high-pressure storage for propul
Other Commercial Products
Golden, CO
30 As of 2025

Heerlen, Netherlands
 

Tulsa, OK
 
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Steelhead Composites Competitors (11)

One of Steelhead Composites’s 11 competitors is NPROXX, a Corporate Backed or Acquired company based in Heerlen, Netherlands.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
NPROXX Corporate Backed or Acquired Heerlen, Netherlands
Infinite Composites Venture Capital-Backed Tulsa, OK
Blue Origin Enterprises Venture Capital-Backed Kent, WA
Aburi Composites Corporation London, United Kingdom
BayoTech Private Equity-Backed Houston, TX
You’re viewing 5 of 11 competitors. Get the full list »

Steelhead Composites Patents

Steelhead Composites Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
US-20240310001-A1 Modular pressure vessel mounting apparatus Inactive 17-Mar-2023
WO-2024196347-A1 Modular pressure vessel mounting apparatus Inactive 17-Mar-2023
US-12234841-B2 Ionic liquid accumulator system for delivering gas Active 14-Oct-2022
US-20240125337-A1 Ionic liquid accumulator system for delivering gas Active 14-Oct-2022
WO-2024081660-A1 Ionic liquid accumulator system for delivering gas Inactive 14-Oct-2022 F17C9/00
To view Steelhead Composites’s complete patent history, request access »

Steelhead Composites Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

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Steelhead Composites Investors (24)

Investor Name Investor Type Holding Investor Since Participating Rounds
Advanced Industry Accelerator Accelerator/Incubator Minority
3D Ventures Venture Capital Minority
Altitude Ventures Venture Capital Minority
Arosa Capital Management Infrastructure Minority
Jogan Venture Capital Minority
You’re viewing 5 of 24 investors. Get the full list »

Steelhead Composites FAQs

  • When was Steelhead Composites founded?

    Steelhead Composites was founded in 2012.

  • Where is Steelhead Composites headquartered?

    Steelhead Composites is headquartered in Golden, CO.

  • What is the size of Steelhead Composites?

    Steelhead Composites has 30 total employees.

  • What industry is Steelhead Composites in?

    Steelhead Composites’s primary industry is Other Commercial Products.

  • Is Steelhead Composites a private or public company?

    Steelhead Composites is a Private company.

  • What is Steelhead Composites’s current revenue?

    The current revenue for Steelhead Composites is .

  • How much funding has Steelhead Composites raised over time?

    Steelhead Composites has raised $46.5M.

  • Who are Steelhead Composites’s investors?

    Advanced Industry Accelerator, 3D Ventures, Altitude Ventures, Arosa Capital Management, and Jogan are 5 of 24 investors who have invested in Steelhead Composites.

  • Who are Steelhead Composites’s competitors?

    NPROXX, Infinite Composites, Blue Origin Enterprises, Aburi Composites, and BayoTech are some of the 11 competitors of Steelhead Composites.

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