Investors / M12 / Compare with Mayfield
M12 vs Mayfield
M12 lists 62 portfolio companies and has joined 34 funding rounds; Mayfield lists 133 companies and has joined 38 rounds. M12 comes in most often at Series A (47% of its entries), Mayfield comes in most often at Series A (39% of its entries). 2 companies are on both portfolios, among them Inception and NeuBird.
Show as a table
| M12 | Mayfield | |
|---|---|---|
| Portfolio companies | 62 | 133 |
| Funding rounds joined | 34 | 38 |
| Rounds led | 4 | 13 |
| Rounds, last 12 months | 22 | 21 |
| Typical round it comes in at | $20M to $100M | $20M to $100M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageM12Mayfield
Show as a table
| M12 | Mayfield | |
|---|---|---|
| Pre-seed | 0% | 3% |
| Seed | 13% | 36% |
| Series A | 47% | 39% |
| Series B | 31% | 10% |
| Growth | 9% | 13% |
Themes
share of checked companiesM12Mayfield
Show as a table
| M12 | Mayfield | |
|---|---|---|
| AI & Machine Learning | 38% | 34% |
| Cybersecurity | 21% | 11% |
| Enterprise Software | 12% | 9% |
| Healthcare & Biotech | 6% | 8% |
| Fintech | 5% | 7% |
| Industrial & Manufacturing | 6% | 0% |
Companies both back
2Shared 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 M12 and Mayfield 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/m12.vc/portfolio
# also
GET /v1/firms/mayfield.com/portfolio
GET /v1/firms/m12.vc/coinvestors