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SPARK THERMIONICS, INC.

Berkeley, CA · Aerospace · Private

Thermionic power generation system for hypersonic vehicle waste heat recovery

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Updated

Sector
Aerospace
Headquarters
Berkeley, CA
Total capital
$15.4M
Federal grants
$8.2M
13 awards · 2017–2026
Rank in peer group#39 of 155
Private capital raised
None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts
$7.2M
12 awards · Defense, NASA
Rank in Aerospace#282 of 1335
Granted patents
15
23 pending · first 2019
Rank in peer group#18 of 155

Capital timeline

201620182020202220242026FEDERAL ↑EQUITY ↓Cumulative $15.4M$2.3M$1.7M$1.3M$1.3M$1.2M$1.2M
201620182020202220242026FEDERAL ↑EQUITY ↓Cumulative $15.4M$2.3M$1.7M$1.3M$1.3M

Latest events

  • Federal grantDefense · Phase II · Affordable Integrated Surface Modification Of Ceramic And Refractory Substructures With Uhtcs For High Temperature Resilient Thermal Protection System (tps) Materials$1.2M
  • Federal contractDefense · Affordable Integrated Surface Modification Of Ceramic And Refractory Substructures With Uhtcs For High Temperature Resilient Thermal Protection System (tps) Materials$1.2M
  • Federal grantDefense · Phase I · Small Business Technology Transfer (STTR) Phase I - #L25D-003-0056 Tendered Under Topic #DLA25D-003 Advertised In STTR Broad Agency Announcement (baa) #STTR 25.D R2 For Affordable Integrated Surface Modification Of Ceramic & Refractory Substructures$100K
  • Federal contractDefense · Small Business Technology Transfer (STTR) Phase I - #L25D-003-0056 Tendered Under Topic #DLA25D-003 Advertised In STTR Broad Agency Announcement (baa) #STTR 25.D R2 For Affordable Integrated Surface Modification Of Ceramic & Refractory Substructures$100K
  • Federal grantDefense · Phase I · Hybrid Electric Powertrain, Power, And Propulsion Systems (heppps) Open Topic (phase I)$250K
  • Federal contractDefense · Hybrid Electric Powertrain, Power, And Propulsion Systems (heppps) Open Topic (phase I)$250K
  • Federal contractDefense · Power For Hypersonic Vehicles Using Thermionics$1.3M
Show 18 earlier federal awards
  • Federal grantDefense · Phase II · Power For Hypersonic Vehicles Using Thermionics$1.3M
  • Federal grantDefense · Phase I · ​Power for hypersonic vehicles using thermionics$75K
  • Federal grantDefense · Phase II · Thermionics for Hypersonics$750K
  • Federal contractDefense · Thermionics For Hypersonics$948K
  • Federal grantNASA · Phase II · Thermionic energy conversion for hypersonics$750K
  • Federal contractDefense · SBIR Phase II Topic A19-137$1.7M
  • Federal contractDefense · Phase II Year 1$1.1M
  • Federal contractNASA · Thermionic Energy Conversion For Hypersonics$125K
  • Federal grantDefense · Phase I · Thermionic generation for powering hypersonic vehicles$50K
  • Federal contractDefense · SBIR 1 Phase 1 Topic A19-137. Research The Development Of A Highly Efficient, Compact Thermal System To Enable High Performance Solid State Energy Conversion Based On Thermionics.$111K
  • Federal grantEnergy · Phase II · Low temperature thermionic electron source with narrow energy spread$1M
  • Federal contractDefense · SBIR Pase I (base)$167K
  • Federal contractDefense · Thermionics For Hypersonics - Thermionic Devices That Integrate Directly Into Hypersonic Vehicles$150K
  • Federal grantDefense · Phase I · Lightweight, compact power generation using thermionic energy conversion$50K
  • Federal grantEnergy · Phase I · Low Temperature Thermionic Electron Source With Narrow Energy Spread$150K
  • Federal grantDefense · Phase II · Applying Novel Materials and Fabrication Techniques to Thermionic Energy Conversion$2.3M
  • Federal grantDefense · Phase I · Applying Novel Materials and Fabrication Techniques to High Efficiency Thermionic Energy Conversion$150K
  • Federal contractDefense · Igf::ot::igf Dso Seedling The Objective Of This 6-MONTH Seedling Effort Is For The Contractor To Demonstrate New Ultra-low Work Function Materials In A Device-like Environment To Ultimately Enable Silent, Efficient (>35%), Power-dense (>5 Kw/kg) Thermionic Heat Engines.$100K

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 155 peers

Line = median

Aerospace · Device

  • Federal grants#39 · top 25%
  • Granted patents#18 · top 12%

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
  • Jared SchwedeResearcherExecutive Officer, DirectorLinked by $4.1M in grants as PI

What it has protected

USPTO · 15 granted of 38
Show all 38 patent records

Related companies, and why

Regulatory activity · Aerospace

Sector-level, not company-level

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 . SBIR and STTR awards through .