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ALTEX TECHNOLOGIES CORPORATION

San Jose, CA · Founded 1985 · Energy · Private

Compact heat exchanger with integrated air fan system for thermal management in hydrogen fuel cell vehicles

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Updated · altextech.com

Sector
Energy
Headquarters
San Jose, CA
Founded
1985
Total capital
$41.6M
Federal grants
$4.6M
14 awards · 2014–2025
Rank in peer group#16 of 39
Private capital raised
None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts
$37M
54 awards · Energy, Defense, Environmental Prot
Rank in Energy#8 of 998
Granted patents
2
6 pending · first 2015
Rank in peer group#13 of 39

Capital timeline

1999200320072011201520192023FEDERAL ↑EQUITY ↓Cumulative $41.6M1999: $143K across 1 contract2001: $2.4M across 1 contract$2.4M2003: $729K across 1 contract2004: $729K across 1 contract2006: $9.1M across 4 contracts$9.1M2007: $491K across 4 contracts2008: $1.2M across 2 contracts2009: $3.8M across 7 contracts$3.8M2010: $8.1M across 6 contracts$8.1M2011: $959K across 4 contracts2012: $778K across 4 contracts2013: $993K across 1 contract2014: $100K across 1 grant · $3M across 1 contract$3.1M2015: $650K across 2 grants · $188K across 2 contracts2016: $150K across 1 grant2017: $1.8M across 3 contracts2018: $150K across 1 grant · $325K across 2 contracts2019: $782K across 1 grant · $400K across 2 contracts2021: $860K across 1 grant2022: $200K across 1 grant · $259K across 1 contract2023: $1.3M across 2 grants · $834K across 2 contracts$2.2M2024: $364K across 1 contract2025: $315K across 2 grants · $193K across 2 contracts2026: $160K across 2 contracts
1999200320072011201520192023FEDERAL ↑EQUITY ↓Cumulative $41.6M1999: $143K across 1 contract2001: $2.4M across 1 contract2003: $729K across 1 contract2004: $729K across 1 contract2006: $9.1M across 4 contracts$9.1M2007: $491K across 4 contracts2008: $1.2M across 2 contracts2009: $3.8M across 7 contracts$3.8M2010: $8.1M across 6 contracts$8.1M2011: $959K across 4 contracts2012: $778K across 4 contracts2013: $993K across 1 contract2014: $100K across 1 grant · $3M across 1 contract$3.1M2015: $650K across 2 grants · $188K across 2 contracts2016: $150K across 1 grant2017: $1.8M across 3 contracts2018: $150K across 1 grant · $325K across 2 contracts2019: $782K across 1 grant · $400K across 2 contracts2021: $860K across 1 grant2022: $200K across 1 grant · $259K across 1 contract2023: $1.3M across 2 grants · $834K across 2 contracts2024: $364K across 1 contract2025: $315K across 2 grants · $193K across 2 contracts2026: $160K across 2 contracts

Latest events

  • Federal contractDefense · 8512110166!RADIATOR,ENGINE Coo$107K
  • Federal contractDefense · 8512098684!RADIATOR,ENGINE Coo$53K
  • Federal contractDefense · 8511693586!RADIATOR,ENGINE Coo$53K
  • Federal grantAgriculture · In This Project, A Biofertilizerproduced As A Digestate From A Anerobic Digestorwill Be Developed And The Nurient Content And Other Crop Growtth Benefits Will Be Measured.also, Ebsrbiochar Produced At Altex Will Be Used As A CO2 Adsorbent, Thereby Producing A Pipe Line Quality Biogas Fromanerobic Digesters. Ebsr Biocharis Produced As A Co Product In The Biofuel Production Process Andthe Cost Is Low Compared To Comercially Available Biochar And Hence The Cost Of Bcube Biofertilizer Is Also Low.$175K
  • Federal contractDefense · Research And Development.$140K
  • Federal grantDefense · Phase I · Research And Development.$140K
  • Federal contractDefense · 8510983411!RADIATOR,ENGINE Coo$364K
Show 59 earlier federal awards
  • Federal contractDefense · 8510229426!RADIATOR,ENGINE Coo$729K
  • Federal contractDefense · 8510036198!RADIATOR,ENGINE Coo$105K
  • Federal grantEnergy · Phase I · DOE DE-FOA-0002903, DOE Topic C56-18b, "Compact and Low-Cost Thermal Management for Heavy-Duty Vehicle Fuel Cells"$200K
  • Federal grantEnergy · Phase II · DOE Phase I DE-SC0022445, FOA DE-FOA-0002859, DOE Topic 21f, "Enhanced Biochar for Soil Reclamation Co-Produced by a Drop-In Biofuels Process"$1.1M
  • Federal contractDefense · Army Small Business Innovative Research Phase 1$259K
  • Federal grantEnergy · Phase I · DE-FOA-0002554, DOE Topic 21f, "Enhanced Biochar for Soil Reclamation Co-Produced by a Drop-In Biofuels Process"$200K
  • Federal grantEnergy · Phase II · Low Cost Feed Flexible Plastics Reuse (LCFFPR)$860K
  • Federal contractEnvironmental Prot · SBIR Phase II Proposal Altex Technologies Corporation - Renewable Bioplastics Production$300K
  • Federal grantDefense · Phase II · Compact, Lightweight, Power-Dense, Integrated Fuel Cell System$782K
  • Federal contractDefense · SBIR Ph I - Proposal Number A183-149-0460 - Altex Technologies Corporation.$100K
  • Federal contractEnvironmental Prot · SBIR Phase I - Altex Technologies Corp$100K
  • Federal grantEnergy · Phase I · Advanced Dry Cooler for sCO2 Power Systems$150K
  • Federal contractDefense · Igf::ot::igf Research And Development$225K
  • Federal contractDefense · Altex SBIR Phase II Igf::ot::igf$992K
  • Federal contractDefense · Igf::ot::igf 6 Month SBIR Phase 1 Topic A17-028$100K
  • Federal contractDefense · Igf::ot::igf SBIR Phase II Research And Development Of An Improved, Self-starting, Multi-fuel Burning Heating System Capable Of Circulating Heated Air Inside All Softwall Shelters Fielded By The Marine Corps. This Technology Should Enable A Reduction In Both The Dependency On Liquid Fuels In The Field And The Logistics Tail Associated With The Transportation And Storage Of These Fuels.$750K
  • Federal grantEnergy · Phase I · Advanced Fossil Energy Technology Research, Subtopic d – "Corrosion and Erosion Resistant Surface Features for High Pressure Supercritical Carbon Dioxide Heat Exchangers"$150K
  • Federal contractDefense · Altex Radiator$38K
  • Federal grantAgriculture · Biomass Fuel Blocks Production System$500K
  • Federal contractDefense · Igf::ot::igf SBIR Phase I Topic N151-001 Self-starting Multi-fuel Heating System$150K
  • Federal grantEnergy · Phase I · Process Intensifcation for Carbon Capture$150K
  • Federal contractDefense · Igf::ot::igf Osd Broad Agency Announcement (baa), Solicitation OEPP-13-BAA-RIF-0002, Award To Altex Technologies Corp. To Produce A TRL-7 250 Watt JP-8 Fuel Cell Generator For The Man Transportable Robotic System (mtrs)$3M
  • Federal grantAgriculture · Program Code 8.1: Forests And Related Resources, Subtopic 7: Sustainable Bioenergy And Development Of Value-added Products From Forest Resou$100K
  • Federal contractDefense · R&d Solid Waste Remediation System$993K
  • Federal contractDefense · Thermal Management For Military Aircraft High Performance Electrical Actuation System - SBIR I$150K
  • Federal contractDefense · Research And Development For Solid Waste Remediation System (swrs) For Small Contingency Base Campls$150K
  • Federal contractDefense · The Contractor Shall Provide Research$400K
  • Federal contractEnvironmental Prot · SBIR Phase I - Altex Technologies, Corporation$79K
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$80K
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$79K
  • Federal contractDefense · Phase II SBIR$730K
  • Federal contractDefense · SBIR Phase I Contract$70K
  • Federal contractDefense · SBIR Phase II N092-112 Thermal Management System And Radiator For Tactical Airborne Laser Applications$750K
  • Federal contractDefense · Ppods$730K
  • Federal contractDefense · Development Of Protoptype JP8 Fuel Cell Auxiliary Power Unit.$6M
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$456K
  • Federal contractDefense · Progress Report$80K
  • Federal contractDefense · SBIR Phase 1, Topic # OSD09-EP6 CO2 Harvesting And Mobile Production Of Liquid Fuel (champ-fuel)$100K
  • Federal contractDefense · The Principle Objective Of The STTR Phase I With Altex Technologies Is To Develop And Test A Durable Low-cost High-durability (lchd) Reactor Design That Incorporates A Non-precious Metal Catalysts And A Reactor Design That Promotes High Heat And Mass Transfer.$100K
  • Federal contractDefense · Small Business Innovative Research Phase I Thermal Management System Topic N092-112$149K
  • Federal contractDefense · Clean And Low-cost Coal To Jet Fuel$1.3M
  • Federal contractDefense · Compact & Mobile Biofuels Production$120K
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$100K
  • Federal contractDefense · Alternative Energy Technologies$2M
  • Federal contractDefense · Aircraft Avionics Temperature Management Using Nishex$100K
  • Federal contractDefense · SBIR Phase 1, Topic #A08-065$120K
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences (except Biotechnology)$1.1M
  • Federal contractDefense · R & D$70K
  • Federal contractDefense · Mobile Systems To Produce Synthetic Fuels.$99K
  • Federal contractEnvironmental Prot · Small Business Innovation Research - Phase II$224K
  • Federal contractDefense · Compact And Reliable Burner That Operates On Military Logist$99K
  • Federal contractDefense · Research And Development In The Physical, Engineering, And Life Sciences$2M
  • Federal contractDefense · SBIR Phase II - The Objective Of This Requirement Is To Refine The Ltpr-sofc Design Developed During The Phase I Effort, And Build, Test, And Demonstrate A 1 Kwe Ltpr-sofc Prototype.$724K
  • Federal contractDefense · 200608!004995!2100!W56HZV!TACOM - Warren !W56HZV06C0344 !a!n! !y! ! !20060512!20080510!183365410!183365410!183365410!N!ALTEX Technologies CORPORATION!244 Sobrante Way !sunnyvale !CA!94086!77000!085!06!SUNNYVALE !santa Clara !CALIFORNIA!+000000825000!N!N!000000000000!AD21!RDTE/SERVICES-BASIC Research !S1 !services !000 !not Discernable !541710!E! !3! ! ! ! ! !999$5.6M
  • Federal contractDefense · 200608!600357!2100!W909MY!USA Communications-electronics !W909MY06C0027 !a!n! !n! ! !20060511!20070510!183365410!183365410!183365410!N!ALTEX Technologies CORPORATION!244 Sobrante Way !sunnyvale !CA!94086!77000!085!06!SUNNYVALE !santa Clara !CALIFORNIA!+000000719222!N!N!000000000000!AD92!RDTE/OTHER Defense-applied Research !C9E!ALL Other Supplies And Equipment !000 !not Discernable !541720!E! !3! ! ! ! ! !999$718K
  • Federal contractDefense · 200512!500305!2100!W911QX!USA Materiel Command ACQUISITION!W911QX05C0017 !a!n! !y! ! !20041103!20061212!183365410!183365410!183365410!N!ALTEX Technologies CORPORATION!244 Sobrante Way !sunnyvale !al!* !77000!085!06!SUNNYVALE !santa Clara !CALIFORNIA!+000000334138!N!N!000000000000!AD96!RDTE/OTHER Defense-management Support !S1 !services !000 !* !541710!E! !3! ! ! ! ! !202$729K
  • Federal contractDefense · 200402!000261!2100!W911QY!USA Materiel Command ACQUISITION!W911QY04C0006 !a!n! !n! ! !20031103!20051109!183365410!183365410!183365410!N!ALTEX Technologies CORPORATION!244 Sobrante Way !sunnyvale !CA!94086!69084!085!06!SANTA Clara !santa Clara !CALIFORNIA!+000000420822!N!N!000000000000!AD21!RDTE/SERVICES-BASIC Research !S1 !services !000 !* !541710!E! !3! ! ! ! ! !999$729K
  • Federal contractDefense$2.4M
  • Federal contractEnergy$143K

Federal awards are summed by year (66 awards); hover a bar for the split. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

2 records have no date or no amount, so they aren’t placed on the timeline.

Standing among 39 peers

Line = median

Energy · Device

  • Federal grants#16 · top 41%
  • Granted patents#13 · top 33%

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

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

USPTO · 2 granted of 8
Show all 8 patent records

Related companies, and why

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  • MATSYS INCORPORATEDSimilar federal contract value in Energy · $37.1M in contracts
  • DIRAC SOLUTIONS, INC.Similar federal contract value in Energy · $33.6M in contracts
  • Respec Company, LLCSimilar federal contract value in Energy · $30.5M in contracts
  • ETA SPACE LLCSimilar federal contract value in Energy · $28.6M in contracts

Regulatory activity · Energy

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 .