Investors / United States / Jetstream
Jetstream
Venture capital · San Francisco, CA, United States · North America
Jetstream is a venture fund that backs founders at the earliest stages. It supports founders with a community of founders and investors for customer introductions, strategic guidance, and follow-on funding.
Invests inAI & Machine LearningEducation
In its own wordshealthfintechclimatedisaster recoveryev chargingplant intelligence
Your fit with Jetstream
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsJetstream lists 53 checked portfolio companies on its own site. Its largest themes are AI & Machine Learning (24%), Education (16%) and Healthcare & Biotech (9%). 90% of its companies are based in United States. It invests most often alongside Y Combinator, Angel Collective Opportunity Fund and Clocktower Ventures.
No funding round on record names Jetstream yet, so the figures come from its portfolio page.
Round figures show recent activity, not Jetstream's whole history. Rounds on record name 0 companies; its own site lists 53. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 24% | 18% |
| Education | 16% | 7% |
| Healthcare & Biotech | 9% | 15% |
| Fintech | 8% | 12% |
| Industrial & Manufacturing | 8% | 7% |
| E-commerce & Marketplaces | 8% | 6% |
| Real Estate & Construction | 6% | 3% |
| Space & Defense | 6% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 8 |
| Angel Collective Opportunity Fund | 5 |
| Clocktower Ventures | 4 |
| Collaborative Fund | 4 |
| Active Impact Investments | 3 |
| Atman Capital Partners | 3 |
| City Light | 3 |
| Climactic | 3 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 85th | 53 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 30th | 24% in its largest sector |
| Reach | 58th | 3 countries |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers5298%
- No longer answers00%
- Points to another company12%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherCompare Jetstream head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
53 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Albedo develops and operates satellite systems in very low earth orbit for various applications including imaging, sensing, and communication. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Alga Biosciences improves agriculture by using algae to create a feed supplement that reduces methane emissions in cattle. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Astra is a platform that lets any company move money instantly across any payment rail. | Fintech | Portfolio page | ||
| Portfolio page | ||||
| The company builds robotic systems that sustain mammalian development externally, paired with AI models that learn to predict how that development unfolds and responds to intervention. | Healthcare & Biotech | Portfolio page | ||
| Bright Harbor provides a platform for individual assistance in government community disaster recovery | Healthcare & BiotechFintech | Page + round | ||
| Cecil provides a spatial datasets API for environmental, social, and governance (ESG) analytics and nature risk assessments | EducationHealthcare & Biotech | Portfolio page | ||
| David Energy is an energy provider that helps businesses lower their electric bills using free, plug-in batteries | EducationEducation | Portfolio page | ||
| The company translates plants' electric signals into actionable insights for plant and tree care | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Glacier builds next-generation robots that make recycling efficient, profitable, and circular | Robotics & HardwareAI & Machine Learning | Portfolio page | ||
| Fram Energy powers automated billing, payments, and revenue collection for energy assets across solar, storage, PPAs, and more. | FintechEducation | Portfolio page | ||
| GlacierGrid provides HVAC and refrigeration asset management for multi-site operators | Industrial & ManufacturingReal Estate & Construction | Portfolio page | ||
| Gritt combines robotics and AI to build infrastructure such as solar, data centers, and large infrastructure projects | AI & Machine LearningRobotics & Hardware | Portfolio page | ||
| Heal provides a platform for benefits plan optimization, compliance, and people operations for companies | Healthcare & BiotechFintech | Portfolio page | ||
| Hill Research transforms clinical data workflows with multi-agent AI and automation for clinical statistics | Healthcare & Biotech | Funding round | ||
| Portfolio page | ||||
| The company provides browser infrastructure for web agents and automations | E-commerce & MarketplacesHealthcare & Biotech | Portfolio page | ||
| Lightship manufactures all-electric adventure vehicles | Mobility & Logistics | Portfolio page | ||
| LiveNearFriends helps people buy or build homes next to friends and family | Real Estate & Construction | Portfolio page | ||
| Mercury provides online business banking services for startups, small businesses, and scaling companies. | FintechE-commerce & Marketplaces | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- jetstream.io
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Companies checked
- 53
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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