Investors / United States / Xfund
Xfund
Venture capital · Palo Alto, CA, United States · North America
Xfund is an early-stage venture capital firm formed as a partnership with venture capital firms and research universities, including Harvard's School of Engineering and Applied Sciences. It invests in transformative technology spun out of academic research and labs, and is currently investing out of its $120m Xfund 3.
Invests inAI & Machine Learning
In its own wordsuniversity spinoutsdeep techmultidisciplinary foundersacademic researchearly stage
Your fit with Xfund
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See how your round matches what it backs, point by point.
Or find every investor that fitsXfund lists 11 checked portfolio companies on its own site and is named in 3 funding rounds. Its most frequent entry is Series A, 67% of the companies with a known first round. Its largest themes are AI & Machine Learning (40%), Space & Defense (10%) and Industrial & Manufacturing (10%). 100% of its companies are based in United States. It invests most often alongside Flybridge, StartX and Unusual Ventures.
Counts come from funding rounds that name Xfund, 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 Xfund's whole history. Rounds on record name 3 companies; its own site lists 11. 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 | 67% |
| 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 | 1 | 0 |
| '26 | 2 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 27th | 11 companies |
| Recent activity | 69th | 2 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 96th | 27% of companies confirmed by a round |
| Sector focus | 74th | 40% in its largest sector |
| Reach | 19th | 1 country |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 40% | 18% |
| Space & Defense | 10% | 3% |
| Industrial & Manufacturing | 10% | 7% |
| Healthcare & Biotech | 10% | 15% |
| Media & Entertainment | 10% | 4% |
| Real Estate & Construction | 5% | 3% |
| Education | 5% | 7% |
| Enterprise Software | 5% | 8% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Flybridge | 2 |
| StartX | 2 |
| Unusual Ventures | 2 |
| Y Combinator | 2 |
| Acrew Capital | 1 |
| Advancit Capital | 1 |
| Alumni Ventures | 1 |
| Avenir | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers11100%
- 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 Xfund 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 Xfund| Date | Company | Stage |
|---|---|---|
| 9 Sept 2026 | Series A | |
| 28 Jan 2026 | Series A | |
| 10 Nov 2025 | Series B |
Round details for Xfund
Amounts, full round histories and every co-investor in Xfund's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
11 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| 23andMe sells DNA testing kits and subscription plans that report on a person's genetic ancestry and genetic health risks. | Healthcare & BiotechConsumer | Portfolio page | ||
| AeroVect deploys turnkey ground handling automation solutions for airlines and airports | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Air provides digital asset management and creative workflow solutions for various industries | Media & EntertainmentSpace & Defense | Portfolio page | ||
| AirOps works with clients to set and execute the right AI discovery strategy to earn an agent's trust and drive growth for their brand. | AI & Machine LearningMedia & Entertainment | Nov 2025Series B | Page + round | |
| BoldVoice is an accent training app that helps non-native English speakers speak clearly and confidently. | EducationAI & Machine Learning | Jan 2026Series A | Page + round | |
| Buildcheck provides automated drawing review for construction using AI-powered technology. | Real Estate & ConstructionAI & Machine Learning | Sept 2026Series A | Page + round | |
| Chalk provides a platform for production AI, allowing users to ship and manage AI agents and models without infrastructure management. | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Cofactr provides electronics supply chain infrastructure, including component intelligence, procurement execution, and warehousing and kitting services. | Industrial & Manufacturing | Portfolio page | ||
| Crabi Robotics designs a fully autonomous marine robotic platform to conduct in-transit cleaning and inspection of marine vessels | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| Curebase provides a clinical trial technology platform for managing studies and capturing data | Healthcare & Biotech | Portfolio page | ||
| Altitude creates AI agents that work the way a team does, automating tasks and workflows | AI & Machine LearningEnterprise Software | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- xfund.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 10 Nov 2025
- Companies checked
- 11
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.
Get Xfund's profile as data
Pull Xfund's portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
Work email, sign-in link by email. Already have an account? Log in- Ask AI5 plain-English investor searches a day
- Full listsEvery portfolio row and two-firm overlap
- API and MCP100 REST or MCP calls a month, one key
- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/xfund.com
# also
GET /v1/firms/xfund.com/portfolio
GET /v1/firms/xfund.com/coinvestors
GET /v1/firms/xfund.com/news