STEELHEAD COMPOSITES, INC.

Golden, CO · Founded 2012 · Aerospace · Private

Composite pressure vessels and hydrogen/CNG storage cylinders

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Updated Aug 28, 2026 · steelheadcomposites.com

Sector: Aerospace
Headquarters: Golden, CO
Founded: 2012
Latest Form D: $750K, Jun 2026
Total capital: $37.2M

Federal grants: $890K; 2 awards · 2019–2021; Rank in peer group#3 of 17
Private capital raised: $36.1M; 11 Form D · last Jun 2026; 2 months since last filing
Federal contracts: $125K; 1 award · NASA; Rank in Aerospace#671 of 1334
Granted patents: 1; 6 pending · first 2025; Rank in peer group#3 of 17

Capital timeline

Latest events

Jun 2026Private capital raisedForm D · SEC · 11th filing$750K
Oct 2025Private capital raisedForm D · SEC · 10th filing$1.9M
Aug 2024Private capital raisedForm D · SEC · 9th filing$15M
Jul 2023Private capital raisedForm D · SEC · 8th filing$1.9M
Oct 2022Private capital raisedForm D · SEC · 7th filing$1.9M
Jun 2022Private capital raisedForm D · SEC · 6th filing$5M
May 2021Private capital raisedForm D · SEC · 5th filing$3.2M
Aug 2020Private capital raisedForm D · SEC · 4th filing$1M
Apr 2014Private capital raisedForm D · SEC · 3rd filing$643K
Mar 2014Private capital raisedForm D · SEC · 2nd filing$3.8M
Nov 2012Private capital raisedForm D · SEC · 1st filing$1M

Show 3 earlier federal awards

Mar 2021Federal grantDefense · Phase II · Self-contained, Attritable Propellant Solution (ScAPS)$750K
Oct 2019Federal grantDefense · Phase I · Combined Spin-Flow Formed Bomb Bodies$140K
Aug 2019Federal contractNASA · Ultralightweight, All Composite Conformal Pressure Vessel$125K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 17 peers

Line = median

Aerospace · Material

Federal grants#3 · top 18%
Granted patents#3 · top 18%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

Researcher links verified by same-company patents and grants

Andrew CoorsResearcherExecutive Officer, DirectorLinked by 1 patent
Kaushik MallickResearcherExecutive OfficerLinked by $750K in grants as PI
John CroninExecutive OfficerNamed in SEC Form D filings
Karen HowlettDirectorNamed in SEC Form D filings
Mark PettyExecutive Officer, DirectorNamed in SEC Form D filings
Peter CoorsDirectorNamed in SEC Form D filings

Show all 10 people

Robert Fenwick-SmithDirectorNamed in SEC Form D filings
Steve HaneExecutive OfficerNamed in SEC Form D filings
STEVE HUGHESDirectorNamed in SEC Form D filings
Tim ReeserDirectorNamed in SEC Form D filings

What it has protected

USPTO · 1 granted of 7

Feb 25, 2025GrantedIonic Liquid Accumulator System For Delivering GasUSPTOUS 12,234,841
Sep 19, 2024PendingModular Pressure Vessel Mounting ApparatusUSPTOApplication 18123237
Jan 26, 2023PendingBoss For Type IV Composite Pressure VesselsUSPTOApplication 17384630

Show all 7 patent records

Ionic Liquid Accumulator System For Delivering GasFeb 25, 2025 · US 12,234,841Granted
Modular Pressure Vessel Mounting ApparatusSep 19, 2024 · Application 18123237Pending
Boss For Type IV Composite Pressure VesselsJan 26, 2023 · Application 17384630Pending
Ionic Liquid Accumulator System For Delivering GasApplication PCTUS2023076489Pending
Modular Pressure Vessel Mounting ApparatusApplication PCTUS2023015577Pending
Ionic Liquid Accumulator System For Delivering GasApplication 63416421Pending
Boss For Type IV Composite Pressure VesselsApplication PCTUS2022036043Pending

Maximus V LLCShares a founder: Kaushik Mallick, DUNS:078762693
JAYCON SYSTEMS LLCSimilar federal contract value in Aerospace · $125K in contracts
STRUCTURED IONS, LLCSimilar federal contract value in Aerospace · $125K in contracts
FANTOM MATERIALS INC.Similar federal contract value in Aerospace · $125K in contracts
Agile Space Propulsion CompanySimilar federal contract value in Aerospace · $125K in contracts
Bridger Photonics, Inc.Similar federal contract value in Aerospace · $124K in contracts

Regulatory activity · Aerospace

Sector-level, not company-level

06 Jul 2026Nondiscrimination in Federally Assisted Programs of NASA-Effectuation of Title VI of the Civil Rights Act of 1964National Aeronautics and Space Administration
01 Jul 2026Special Conditions: AMAC Aerospace, The Boeing Company Model 747- 8 Airplane; Side-Facing SeatsFederal Aviation Administration
26 Jun 2026Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous AmendmentsFederal Aviation Administration
23 Jun 2026Operating Limitations at John F. Kennedy International AirportFederal Aviation Administration
23 Jun 2026Operating Limitations at New York LaGuardia AirportFederal Aviation Administration
18 Jun 2026Special Conditions: Honeywell Aerospace US LLC, Dassault Aviation Model Falcon 900EX Airplane; Electronic System Security Protection From Unauthorized External AccessFederal Aviation Administration

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through Aug 28, 2026. SBIR and STTR awards through Jul 3, 2026.