Investors / StartX
StartX
Accelerator
StartX runs an accelerator program and a founder community for Stanford entrepreneurs, offering mentorship, resources, networking events, and access to partners and investors. It takes no equity and charges no fees.
Invests inHealthcare & BiotechAI & Machine Learning
In its own wordsacceleratorstanfordfounder communitymentorshipaibiotech
Your fit with StartX
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsStartX lists 773 checked portfolio companies on its own site and is named in 2 funding rounds. Its most frequent entry is Series A, 100% of the companies with a known first round. Its largest themes are Healthcare & Biotech (25%), AI & Machine Learning (19%) and Education (9%). 83% of its companies are based in United States. It invests most often alongside Y Combinator, Ulu Ventures and The MBA Fund.
Counts come from funding rounds that name StartX, 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 StartX's whole history. Rounds on record name 2 companies; its own site lists 773. 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 roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 0% |
| Series A | 100% |
| Series B | 0% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 1 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 0 | 0 |
| '26 | 1 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 100th | 772 companies |
| Recent activity | 59th | 1 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 | 32th | 25% in its largest sector |
| Reach | 100th | 25 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Healthcare & Biotech | 25% | 15% |
| AI & Machine Learning | 19% | 18% |
| Education | 9% | 7% |
| Fintech | 8% | 12% |
| Enterprise Software | 7% | 8% |
| Industrial & Manufacturing | 6% | 7% |
| Media & Entertainment | 4% | 4% |
| E-commerce & Marketplaces | 4% | 6% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Y Combinator | 68 |
| Ulu Ventures | 23 |
| The MBA Fund | 17 |
| Dorm Room Fund | 14 |
| Andreessen Horowitz | 13 |
| Western Technology Investment | 13 |
| Newfund | 12 |
| Soma Capital | 12 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers72494%
- No longer answers00%
- Points to another company496%
- 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 StartX 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 StartX| Date | Company | Stage |
|---|---|---|
| 14 Apr 2018 | Series A |
Round details for StartX
Amounts, full round histories and every co-investor in StartX's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
773 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Portfolio page | ||||
| The company operates a Chinese dating website | Enterprise SoftwareE-commerce & Marketplaces | Portfolio page | ||
| 3YOURMIND offers software for on-demand manufacturing and part identification | Industrial & Manufacturing | Portfolio page | ||
| Acrew invests in companies, specifically in the early stages from seed to series A | Fintech | Portfolio page | ||
| Actipulse Neuroscience specializes in the research and engineering of Non-Invasive Brain Stimulation technologies for the treatment of psychiatric and neurological disorders. | Healthcare & Biotech | Portfolio page | ||
| Adaptyx turns lab-grade biochemical assays into a continuous data stream, delivering molecular insights for intelligent, always-on healthcare | Healthcare & Biotech | Portfolio page | ||
| AdmitYogi provides college admissions mentoring and tools to help students calculate their chances of getting into certain colleges | Education | Portfolio page | ||
| Aether Biomedical brings precision engineering and biosignal intelligence to prosthetic rehabilitation. | Healthcare & Biotech | Portfolio page | ||
| Aether AI builds AI systems that understand mechanisms and operate reliably in real-world systems. | AI & Machine LearningRobotics & Hardware | Portfolio page | ||
| Afresh turns millions of data points into profitable decisions for grocery retailers and distributors | AI & Machine LearningFood & Agriculture | Portfolio page | ||
| Agathos delivers trusted, peer-comparison insights directly to physicians via text, inspiring self-driven improvement in care quality and reducing costs. | Healthcare & Biotech | Portfolio page | ||
| AgriWebb develops and provides livestock management software for farmers and producers. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| AI-Learners helps students with all abilities learn early math, literacy, and social skills through personalized computer games and analytics. | EducationEducation | Portfolio page | ||
| The company develops a digital neurologist to diagnose stroke in a pre-hospital setting using a mobile application and AI-powered solutions. | Healthcare & Biotech | Portfolio page | ||
| Aidentis assists dental clinics using artificial intelligence | Healthcare & Biotech | Portfolio page | ||
| AiFi provides a spatial intelligence platform for retail, venues, and travel industries | AI & Machine LearningReal Estate & Construction | Portfolio page | ||
EducationHealthcare & Biotech | Portfolio page | |||
Healthcare & Biotech | Portfolio page | |||
| Alation sells a software platform for data cataloging, data governance, and managing the accuracy of data and AI agents. | Enterprise SoftwareAI & Machine Learning | Portfolio page | ||
| Alchemy provides blockchain infrastructure for developers | FintechCrypto & Web3 | Portfolio page |
About this data
site last read 8 Nov 2026- Site
- startx.com
- Last read
- 8 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 14 Apr 2018
- Companies checked
- 773
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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