Investors / United States / FoundersX Ventures
FoundersX Ventures
Venture capital · San Francisco, CA, United States · North America
FoundersX Ventures is a venture capital firm that backs founders building companies across the full AI stack, including AI chips, space as AI infrastructure, physical AI foundation models, robotics, and agentic AI. It reports over 100 founders backed, 12 unicorns, and $800 million under management, with offices in Silicon Valley, Harvard Square, and Manhattan.
Invests inAI & Machine LearningHealthcare & BiotechFintech
In its own wordsartificial intelligenceai chipsspace techroboticsagentic aiphysical ai
Your fit with FoundersX Ventures
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See how your round matches what it backs, point by point.
Or find every investor that fitsFoundersX Ventures lists 42 checked portfolio companies on its own site and is named in 3 funding rounds. Its most frequent entry is Seed, 33% of the companies with a known first round. Its largest themes are AI & Machine Learning (22%), Healthcare & Biotech (21%) and Fintech (19%). 58% of its companies are based in United States. It invests most often alongside Y Combinator, Soma Capital and Andreessen Horowitz.
Counts come from funding rounds that name FoundersX Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not FoundersX Ventures' whole history. Rounds on record name 3 companies; its own site lists 42. 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.
Entry stage
share of companies by the stage of its first roundFoundersX Ventures does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 33% |
| Series A | 33% |
| Series B | 33% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 2 | 0 |
| '26 | 1 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 78th | 42 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 64th | 33% of entries at pre-seed or seed |
| Evidence | 55th | 2% of companies confirmed by a round |
| Sector focus | 23th | 22% in its largest sector |
| Reach | 96th | 11 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 22% | 18% |
| Healthcare & Biotech | 21% | 15% |
| Fintech | 19% | 12% |
| Space & Defense | 10% | 3% |
| Industrial & Manufacturing | 4% | 7% |
| Enterprise Software | 4% | 8% |
| Cybersecurity | 3% | 4% |
| Legal & Compliance | 3% | 2% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 22 |
| Soma Capital | 10 |
| Andreessen Horowitz | 3 |
| Astir Ventures | 3 |
| Capitoria | 3 |
| HOF Capital | 3 |
| Tribe Capital | 3 |
| VU Venture Partners | 3 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers42100%
- No longer answers00%
- Points to another company00%
- 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 FoundersX Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with FoundersX Ventures| Date | Company | Stage |
|---|---|---|
| 15 Apr 2026 | Series B | |
| 7 Nov 2025 | Series A | |
| 29 Oct 2025 | Seed |
Round details for FoundersX Ventures
Amounts, full round histories and every co-investor in FoundersX Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
42 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| The company pioneers small and large molecule therapeutics discovery by integrating massive multimodal data, frontier AI models, and high-throughput lab automation into an infrastructure for AI-enabled drug discovery. | Healthcare & Biotech | Portfolio page | ||
| Alinea Invest offers automated investing services, including portfolios and investment advice | Fintech | Portfolio page | ||
| Arintra develops an AI-driven platform for revenue assurance in the healthcare industry, specifically for medical coding and revenue cycle management. | Healthcare & BiotechAI & Machine Learning | Portfolio page | ||
| Atmeto is building a frontier world model for the power grid. | EducationIndustrial & Manufacturing | Portfolio page | ||
| Balnord is a venture capital investor in dual-use and frontier technology companies in the Baltic Sea and Northern Europe region. | FintechHealthcare & Biotech | Nov 2025Series A | Funding round | |
| Bitstack provides a platform for users to save, spend, and grow their money in bitcoin | FintechCrypto & Web3 | Portfolio page | ||
| Cellbyte provides AI-powered tools and services for pharmaceutical pricing and market access research | Healthcare & BiotechAI & Machine Learning | Portfolio page | ||
| Charge Robotics automates the assembly and installation of solar panels | Robotics & HardwareSpace & Defense | Portfolio page | ||
| Contalink provides a cloud-based accounting system for accounting firms and businesses. | FintechSpace & Defense | Portfolio page | ||
| Portfolio page | ||||
| Cytophenix develops and provides rapid antimicrobial susceptibility testing solutions | Healthcare & Biotech | Oct 2025Seed | Funding round | |
| Deepsim Inc provides a physics simulator that boosts engineering productivity by delivering rapid design insights and offering unmatched scalability. | AI & Machine LearningIndustrial & Manufacturing | Portfolio page | ||
| Elementary provides machine vision systems for quality control and defect detection in various industries. | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| FS2 develops a solution for stacked 3D chip by monolithic 3D integration—compatible with legacy IC infrastructure | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Glyphic Biotechnologies is developing a high-throughput proteome sequencing technology | Healthcare & Biotech | Portfolio page | ||
| Lunajoy Health provides online therapy and counseling services for women's mental health | Healthcare & Biotech | Portfolio page | ||
| Houm helps people find, rent, or buy homes and properties. | Real Estate & Construction | Portfolio page | ||
| Hudson Labs provides AI-powered equity research and SEC filing analysis tools for financial markets research. | FintechAI & Machine Learning | Portfolio page | ||
| The company produces and distributes vertical novels and other entertainment content. | Enterprise SoftwareMedia & Entertainment | Portfolio page | ||
| Jericho Security provides cybersecurity training for employees using AI technology. | CybersecurityEducation | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- foundersx.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 29 Oct 2025
- Companies checked
- 42
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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