/

Investors / Valor Siren Ventures / Compare with Y Combinator

Valor Siren Ventures vs Y Combinator

Valor Siren Ventures lists 198 portfolio companies and has joined 69 funding rounds; Y Combinator lists 5,151 companies and has joined 3,388 rounds. Valor Siren Ventures comes in most often at Growth (37% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 14 companies are on both portfolios, among them Ashby, Biobot Analytics and Eight Sleep.

198Portfolio companies5,151
69Funding rounds joined3,388
24Rounds led2,960
42Rounds, last 12 months579
$100M or moreTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Valor Siren Ventures and Y Combinator, head to head
Valor Siren VenturesY Combinator
Portfolio companies1985,151
Funding rounds joined693,388
Rounds led242,960
Rounds, last 12 months42579
Typical round it comes in at$100M or moreunder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed14%98%
Series A31%1%
Series B18%0%
Growth37%1%

Valor Siren VenturesY Combinator

Show as a table
Entry stages of Valor Siren Ventures and Y Combinator, share of entries
Valor Siren VenturesY Combinator
Pre-seed0%0%
Seed14%98%
Series A31%1%
Series B18%0%
Growth37%1%

Themes

share of checked companies
AI & Machine Learning26%26%
Fintech12%13%
Healthcare & Biotech12%11%
Enterprise Software6%10%
Cybersecurity9%5%
Industrial & Manufacturing7%4%

Valor Siren VenturesY Combinator

Show as a table
Themes of Valor Siren Ventures and Y Combinator, share of checked companies
Valor Siren VenturesY Combinator
AI & Machine Learning26%26%
Fintech12%13%
Healthcare & Biotech12%11%
Enterprise Software6%10%
Cybersecurity9%5%
Industrial & Manufacturing7%4%

Companies both back

14

Shared 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

Free account · no card

Compare Valor Siren Ventures and Y Combinator 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
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/valorep.com/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/valorep.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing