/Investor DB

VXI Capital — Full Portfolio

7 tracked investments · listed companies and verified rows first

Biospherebiosphere.ioinJan 2025 · $8.8M✓ verified

Biosphere develops bioreactors and biomanufacturing systems to modernize industrial production of chemicals, materials, foods, and pharmaceuticals using engineered biology and clean energy.

Advanced ManufacturingBiotechCleantechHardware

Brian Heligman(Founder)inArye Lipman(Founder)in

Co-investorsGS FuturesFounders FundJuniperLowercarbon CapitalB37 VenturesCaffeinated Capital

VEIRveir.cominFeb 2025 · $75M✓ verified

VEIR manufactures low- and medium-voltage superconducting systems that deliver electricity for high-performance AI data centers.

AI & Machine LearningDeep TechEnergyHardwareWoburn, US

Tim Heidel(CEO & Co-Founder)in

BoardDoug Stewart(Director)Adam Wallen(Executive Officer, Director)in

Co-investorsBreakthrough Energy VenturesCongruent VenturesPiva CapitalTyche PartnersNational Grid PartnersBaruch Future Ventures+7 more

AtmosZeroatmoszero.energyin𝕏Mar 2026

AtmosZero builds modular electrified heat pump boilers that draw heat from ambient air to produce emissions-free industrial steam as a drop-in replacement for fuel-burning boilers.

CleantechClimate TechEnergy

Addison Stark(Chief Executive Officer, Founder)inTodd Bandhauer(Chief Technology Officer, Founder)in

Co-investorsAENUConstellation Technology VenturesEnergy Impact PartnersThe Engine VenturesMitsubishi Heavy IndustriesMotier Ventures+1 more

General Medicinegeneralmedicine.coin𝕏

General Medicine connects patients with clinicians and local specialists to address individual healthcare needs.

AI & Machine LearningDigital HealthHealthtechNot specified, US

Ashwin Muralidharan(Founder)inTJ Parker(Founder)in

Co-investorsAndreessen HorowitzBoxGroupFounder CollectiveMatrixSolari Capital

Teradarteradar.cominNov 2025 · $150M

Teradar develops terahertz-based sensors for automotive safety, defense, and emerging applications.

Deep TechDefense TechHardwareMobility & TransportationBoston, US

Matthew Carey(CEO & Co-founder)inGregory Charvat(CTO & Co-founder)inNicholas Saiz(Chief Chip Architect & Co-founder)in

Co-investorsAlumni VenturesIbex InvestorsThe Engine VenturesCapricorn Investment GroupLockheed Martin Ventures

Volantisvolantissemi.aiOct 2026 · $88M

Develops optical interconnect technology using light-based communication for computing systems.

Deep TechHardwareSemiconductors

Tapa Ghosh(Founder)inRoy Meade(Co-Founder, CTO)in

Co-investorsIceNineUnpopular VenturesVibe CapitalAbstract VenturesLachy GroomSam Altman+3 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Sortera Technologies

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.