Investors / Greylock / Compare with ION Crossover Partners
Greylock vs ION Crossover Partners
Greylock lists 153 portfolio companies and has joined 48 funding rounds; ION Crossover Partners lists 21 companies and has joined 4 rounds. Greylock comes in most often at Seed (28% of its entries), ION Crossover Partners comes in most often at Series B (50% of its entries). 1 company is on both portfolios, among them Cato Networks.
Show as a table
| Greylock | ION Crossover Partners | |
|---|---|---|
| Portfolio companies | 153 | 21 |
| Funding rounds joined | 48 | 4 |
| Rounds led | 15 | 3 |
| Rounds, last 12 months | 24 | 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 stageGreylockION Crossover Partners
Show as a table
| Greylock | ION Crossover Partners | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 28% | 0% |
| Series A | 28% | 0% |
| Series B | 25% | 50% |
| Growth | 20% | 50% |
Themes
share of checked companiesGreylockION Crossover Partners
Show as a table
| Greylock | ION Crossover Partners | |
|---|---|---|
| AI & Machine Learning | 27% | 20% |
| Cybersecurity | 16% | 20% |
| Fintech | 14% | 14% |
| Media & Entertainment | 3% | 14% |
| Enterprise Software | 11% | 11% |
| Healthcare & Biotech | 7% | 6% |
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 Greylock and ION Crossover Partners 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/greylock.com/portfolio
# also
GET /v1/firms/ion-am.com/portfolio
GET /v1/firms/greylock.com/coinvestors