Investors / First Momentum / Compare with Third Rock Ventures
First Momentum vs Third Rock Ventures
First Momentum lists 19 portfolio companies and has joined 12 funding rounds; Third Rock Ventures lists 34 companies and has joined 7 rounds. First Momentum comes in most often at Seed (73% of its entries), Third Rock Ventures comes in most often at Growth (43% of its entries). 1 company is on both portfolios, among them Pliant.
Show as a table
| First Momentum | Third Rock Ventures | |
|---|---|---|
| Portfolio companies | 19 | 34 |
| Funding rounds joined | 12 | 7 |
| Rounds led | 2 | 2 |
| Rounds, last 12 months | 7 | 3 |
| Typical round it comes in at | $5M to $20M | $100M or more |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stageFirst MomentumThird Rock Ventures
Show as a table
| First Momentum | Third Rock Ventures | |
|---|---|---|
| Pre-seed | 9% | 0% |
| Seed | 73% | 0% |
| Series A | 18% | 29% |
| Series B | 0% | 29% |
| Growth | 0% | 43% |
Themes
share of checked companiesFirst MomentumThird Rock Ventures
Show as a table
| First Momentum | Third Rock Ventures | |
|---|---|---|
| Healthcare & Biotech | 12% | 46% |
| Industrial & Manufacturing | 27% | 7% |
| AI & Machine Learning | 18% | 17% |
| Fintech | 0% | 15% |
| Education | 12% | 0% |
| E-commerce & Marketplaces | 9% | 2% |
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 First Momentum and Third Rock 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/firstmomentum.vc/portfolio
# also
GET /v1/firms/thirdrockventures.com/portfolio
GET /v1/firms/firstmomentum.vc/coinvestors