Investors / Greylock / Compare with Optimist Ventures
Greylock vs Optimist Ventures
Greylock lists 152 portfolio companies and has joined 48 funding rounds; Optimist Ventures lists 6 companies and has joined 1 round. Greylock comes in most often at Seed (28% of its entries), Optimist Ventures comes in most often at Series A (100% of its entries). 2 companies are on both portfolios, among them ByteDance and OpenAI.
Show as a table
| Greylock | Optimist Ventures | |
|---|---|---|
| Portfolio companies | 152 | 6 |
| Funding rounds joined | 48 | 1 |
| Rounds led | 15 | 0 |
| Rounds, last 12 months | 24 | 1 |
| Typical round it comes in at | $20M to $100M | $5M to $20M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageGreylockOptimist Ventures
Show as a table
| Greylock | Optimist Ventures | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 28% | 0% |
| Series A | 28% | 100% |
| Series B | 25% | 0% |
| Growth | 20% | 0% |
Themes
share of checked companiesGreylockOptimist Ventures
Show as a table
| Greylock | Optimist Ventures | |
|---|---|---|
| AI & Machine Learning | 27% | 20% |
| Fintech | 14% | 20% |
| Space & Defense | 5% | 20% |
| Cybersecurity | 16% | 10% |
| Enterprise Software | 11% | 0% |
| Media & Entertainment | 3% | 10% |
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 Greylock and Optimist 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/greylock.com/portfolio
# also
GET /v1/firms/optimist.vc/portfolio
GET /v1/firms/greylock.com/coinvestors