JE

Jetstream Venture Fund — Seed & Series A VC Firm

VC
Not available from sourceWebsite

Jetstream Venture Fund is a Seed, Series A venture capital firm based in Not available from source investing in Climate / Energy, Healthcare. The firm has 10 portfolio companies in our records.

Portfolio
10 companies on record
Partners
2 listed
Stage
Seed, Series A
Sectors
Climate / Energy, Healthcare
HQ
Not available from source
Check size
Not in our records
AUM
Not in our records

Last verified: 2026-10-30

How to approach: cold outreach ok
Stage

Seed, Series A

Portfolio

10+ companies

Team

2 partners

Investment Thesis

Industrial and cleantech investor with interest in modular systems and technologies that transform industrial production. It can be relevant where construction, materials, and manufacturing converge.

How Jetstream Venture Fund invests

Jetstream Venture Fund is a vc firm based in Not available from source. The firm invests at the Seed, Series A stages, with a focus on Climate / Energy, Healthcare.

Jetstream Venture Fund has backed 10 companies in our records, including spacex, carbogenesis, surf therapeutics.

Partners & Team

NA

Not available from source

GP

Industrial cleantech
DS

Douglas Sylvester

Founder

Industry Focus

Invests In

Climate / Energy
Healthcare

Portfolio Companies (10)

Other

SP

spacex

Aerospace & Defense
CA

carbogenesis

Industrial & Climate Technology
SU

surf therapeutics

Healthcare & Life Sciences·Jetstream Venture Fund

Stanford spin-out developing non-invasive ultrasound neuromodulation for autoimmune disorders.

SH

shield ai

Aerospace & Defense·Jetstream Venture Fund

Defense technology company building AI-powered autonomous aircraft.

HI

hill research

Healthcare & Life Sciences·Jetstream Venture Fund

AI-powered clinical research organization automating biostatistical workflows for drug development.

WO

wonderlab bio

Healthcare & Life Sciences·Jetstream Venture Fund

Regenerative medicine company building a large HLA-matched allogeneic iPSC cell bank.

RE

rejuvenate bio

Healthcare & Life Sciences·Jetstream Venture Fund

Gene therapy company developing non-genome-editing therapeutics for age-related disease and regeneration.

MO

moonrise medical

Healthcare & Life Sciences·Jetstream Venture Fund

AI-enabled vascular ultrasound company automating Doppler assessments and pedal acceleration time measurements.

IM

imageaid

Healthcare & Life Sciences·Jetstream Venture Fund

Medical technology company developing a portable, point-of-care Doppler ultrasound platform for vascular diagnostics.

RE

rejuvenation technologies

Healthcare & Life Sciences·Jetstream Venture Fund

Longevity and regenerative medicine company developing targeted mRNA therapies to extend critically short telomeres.

How to pitch Jetstream Venture Fund
  • •Raising at Seed, Series A? You're squarely in their sweet spot.
  • •Lead with your fit in Climate / Energy, Healthcare — the sectors they actively back.
  • •cold outreach ok
  • •Address your outreach to a specific partner, such as Not available from source, GP.
  • •A warm introduction beats a cold email. Get matched and request an intro.

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