{"id":15854,"name":"Jetstream Venture Fund","slug":"jetstream-venture-fund","website":"https://www.jvf.vc","hqGeo":"Not available from source","stageFocus":["Seed","Series A"],"sectorTags":["Climate / Energy","Healthcare"],"excludedSectors":[],"checkSizeMin":null,"checkSizeMax":null,"thesisSummary":"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.","thesisNarrative":null,"logoUrl":null,"aumUsd":null,"submissionUrl":null,"linkedinUrl":null,"twitterHandle":null,"portfolio":[{"companyName":"spacex","companyUrl":null,"stage":null,"sector":"Aerospace & Defense","investmentYear":null,"description":null,"amountUsd":null,"relevanceNote":null,"fundName":null},{"companyName":"carbogenesis","companyUrl":null,"stage":null,"sector":"Industrial & Climate Technology","investmentYear":null,"description":null,"amountUsd":null,"relevanceNote":null,"fundName":null},{"companyName":"surf therapeutics","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"Stanford spin-out developing non-invasive ultrasound neuromodulation for autoimmune disorders.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"shield ai","companyUrl":null,"stage":null,"sector":"Aerospace & Defense","investmentYear":null,"description":"Defense technology company building AI-powered autonomous aircraft.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"hill research","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"AI-powered clinical research organization automating biostatistical workflows for drug development.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"wonderlab bio","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"Regenerative medicine company building a large HLA-matched allogeneic iPSC cell bank.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"rejuvenate bio","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"Gene therapy company developing non-genome-editing therapeutics for age-related disease and regeneration.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"moonrise medical","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"AI-enabled vascular ultrasound company automating Doppler assessments and pedal acceleration time measurements.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"imageaid","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"Medical technology company developing a portable, point-of-care Doppler ultrasound platform for vascular diagnostics.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"},{"companyName":"rejuvenation technologies","companyUrl":null,"stage":null,"sector":"Healthcare & Life Sciences","investmentYear":null,"description":"Longevity and regenerative medicine company developing targeted mRNA therapies to extend critically short telomeres.","amountUsd":null,"relevanceNote":null,"fundName":"Jetstream Venture Fund"}],"partnerCount":2,"partners":[{"id":51734,"name":"Not available from source","title":"GP","seniority":null,"focusTags":["Industrial cleantech"],"linkedinUrl":null,"twitterHandle":null,"blogUrl":null,"thesisSummary":null,"whyThisPartner":null,"recentPosts":[]},{"id":51733,"name":"Douglas Sylvester","title":"Founder","seniority":null,"focusTags":[],"linkedinUrl":"https://www.linkedin.com/in/douglas-sylvester","twitterHandle":null,"blogUrl":null,"thesisSummary":null,"whyThisPartner":null,"recentPosts":[]}],"funds":[],"activity":{"lastInvestmentYear":null,"investmentsThisYear":0},"activityItems":[],"contentUpdatedAt":null,"investorType":"vc","preferredApproach":"cold outreach ok","prefersFounderType":null,"oneClickPitchEnabled":false,"relatedFirms":[{"id":11323,"name":"Mountain Pine Capital","slug":"mountain-pine-capital","logoUrl":null,"website":"https://mountainpineholdings.com/","stageFocus":["Seed"],"sectorTags":["Consumer","Healthcare","Real Estate"],"hqGeo":"Salt Lake City, UT"},{"id":12955,"name":"Jovono","slug":"jovono","logoUrl":null,"website":"https://jovono.com","stageFocus":["Seed","Series A"],"sectorTags":["Climate / Energy","Fintech","Consumer","SaaS","Healthcare"],"hqGeo":"Los Angeles, CA"},{"id":12160,"name":"Solid Ventures","slug":"solid-ventures","logoUrl":null,"website":"https://www.solidventures.vc/","stageFocus":["Seed"],"sectorTags":["Fintech","Healthcare","SaaS","Enterprise","Developer Tools","Consumer"],"hqGeo":"Austin, TX"},{"id":14297,"name":"Intersolar Angels","slug":"intersolar-angels","logoUrl":null,"website":"https://www.intersolar.mx/","stageFocus":["Pre-Seed"],"sectorTags":["Climate / Energy"],"hqGeo":"Accra, Ghana"},{"id":13026,"name":"Robin Capital","slug":"robin-capital","logoUrl":null,"website":"https://robincap.com/","stageFocus":["Pre-Seed","Seed"],"sectorTags":["AI / ML","Fintech","SaaS","Climate / Energy","Healthcare"],"hqGeo":"Berlin, Germany"},{"id":12096,"name":"TeleHealth Ventures","slug":"telehealth-ventures","logoUrl":null,"website":"https://telehealthventures.com","stageFocus":["Seed"],"sectorTags":["Healthcare"],"hqGeo":"Austin, TX"}],"featuredIn":[{"slug":"seed","displayName":"Seed Investors","pageType":"stage"},{"slug":"series-a","displayName":"Series A Investors","pageType":"stage"},{"slug":"healthcare","displayName":"Healthcare Investors","pageType":"industry"},{"slug":"climate","displayName":"Climate & Sustainability Investors","pageType":"industry"}],"fundraisingResources":[{"slug":"how-vcs-help-portfolio-raise-follow-on","title":"How VCs Can Actually Help Their Portfolio Companies Raise Follow-On"},{"slug":"how-many-investors-should-you-pitch","title":"How Many Investors Should You Pitch? The Math Most Founders Get Wrong"},{"slug":"what-vcs-actually-look-for-pitch-deck","title":"What VCs Actually Look for in a Pitch Deck"}],"overviewNarrative":null,"portfolioNarrative":null,"seoTitle":null,"seoDescription":null,"lastVerifiedAt":"2026-10-30T03:47:37.381Z"}