Investors / Fathom Fund / Compare with S3 Ventures
Fathom Fund vs S3 Ventures
Fathom Fund lists 10 portfolio companies and has joined 0 funding rounds; S3 Ventures lists 23 companies and has joined 24 rounds. S3 Ventures comes in most often at Series A (38% of its entries). 1 company is on both portfolios, among them Mythic.
Show as a table
| Fathom Fund | S3 Ventures | |
|---|---|---|
| Portfolio companies | 10 | 23 |
| Funding rounds joined | 0 | 24 |
| Rounds led | 0 | 15 |
| Rounds, last 12 months | 0 | 20 |
| Typical round it comes in at | n/a | $20M to $100M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageFathom FundS3 Ventures
Show as a table
| Fathom Fund | S3 Ventures | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 0% | 21% |
| Series A | 0% | 38% |
| Series B | 0% | 17% |
| Growth | 0% | 25% |
Themes
share of checked companiesFathom FundS3 Ventures
Show as a table
| Fathom Fund | S3 Ventures | |
|---|---|---|
| AI & Machine Learning | 42% | 15% |
| Healthcare & Biotech | 5% | 24% |
| Fintech | 0% | 24% |
| Space & Defense | 16% | 9% |
| Industrial & Manufacturing | 16% | 0% |
| Robotics & Hardware | 11% | 0% |
Companies both back
1Shared companies are those both firms' own portfolio pages list, each checked against the company's site. The same comparison through the API is POST /v1/overlap, for up to 20 firms. How the data is graded
Compare Fathom Fund and S3 Ventures as data
Pull both portfolios and every co-investor through one API key or MCP, and lay up to 20 firms side by side with POST /v1/overlap. A free account adds Ask AI searches and alerts when either firm adds a company.
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/ff.vc/portfolio
# also
GET /v1/firms/s3vc.com/portfolio
GET /v1/firms/ff.vc/coinvestors