Investors / Atlas Venture / Compare with EcoR1 Capital
Atlas Venture vs EcoR1 Capital
Atlas Venture lists 52 portfolio companies and has joined 11 funding rounds; EcoR1 Capital lists 19 companies and has joined 5 rounds. Atlas Venture comes in most often at Series B (73% of its entries), EcoR1 Capital comes in most often at Growth (50% of its entries). 2 companies are on both portfolios, among them Accent Therapeutics and Diagonal Therapeutics.
Show as a table
| Atlas Venture | EcoR1 Capital | |
|---|---|---|
| Portfolio companies | 52 | 19 |
| Funding rounds joined | 11 | 5 |
| Rounds led | 1 | 0 |
| Rounds, last 12 months | 6 | 3 |
| Typical round it comes in at | $100M or more | $20M to $100M |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageAtlas VentureEcoR1 Capital
Show as a table
| Atlas Venture | EcoR1 Capital | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 9% | 0% |
| Series A | 9% | 25% |
| Series B | 73% | 25% |
| Growth | 9% | 50% |
Themes
share of checked companiesAtlas VentureEcoR1 Capital
Show as a table
| Atlas Venture | EcoR1 Capital | |
|---|---|---|
| Healthcare & Biotech | 93% | 100% |
| Industrial & Manufacturing | 2% | 0% |
| Robotics & Hardware | 2% | 0% |
| AI & Machine Learning | 2% | 0% |
| Cybersecurity | 2% | 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 Atlas Venture and EcoR1 Capital 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/atlasventure.com/portfolio
# also
GET /v1/firms/ecor1cap.com/portfolio
GET /v1/firms/atlasventure.com/coinvestors