Investors / Founders Fund / Compare with IronArc
Founders Fund vs IronArc
Founders Fund lists 134 portfolio companies and has joined 124 funding rounds; IronArc lists 18 companies and has joined 2 rounds. Founders Fund comes in most often at Growth (39% of its entries), IronArc comes in most often at Growth (100% of its entries). 4 companies are on both portfolios, among them Anduril, Anthropic and Gecko Robotics.
Show as a table
| Founders Fund | IronArc | |
|---|---|---|
| Portfolio companies | 134 | 18 |
| Funding rounds joined | 124 | 2 |
| Rounds led | 30 | 0 |
| Rounds, last 12 months | 63 | 2 |
| Typical round it comes in at | $20M to $100M | $100M or more |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageFounders FundIronArc
Show as a table
| Founders Fund | IronArc | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 11% | 0% |
| Series A | 30% | 0% |
| Series B | 20% | 0% |
| Growth | 39% | 100% |
Themes
share of checked companiesFounders FundIronArc
Show as a table
| Founders Fund | IronArc | |
|---|---|---|
| AI & Machine Learning | 25% | 58% |
| Enterprise Software | 8% | 21% |
| Fintech | 16% | 3% |
| Healthcare & Biotech | 12% | 0% |
| Cybersecurity | 3% | 9% |
| Industrial & Manufacturing | 9% | 6% |
Companies both back
4Shared 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 Founders Fund and IronArc 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/foundersfund.com/portfolio
# also
GET /v1/firms/ironarcventures.com/portfolio
GET /v1/firms/foundersfund.com/coinvestors