/

Investors / Social Starts / Compare with Y Combinator

Social Starts vs Y Combinator

Social Starts lists 137 portfolio companies and has joined 0 funding rounds; Y Combinator lists 5,151 companies and has joined 3,388 rounds. Y Combinator comes in most often at Seed (98% of its entries). 9 companies are on both portfolios, among them Bloom Institute of Technology, BrainKey and Burrow.

137Portfolio companies5,151
0Funding rounds joined3,388
0Rounds led2,960
0Rounds, last 12 months579
n/aTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Social Starts and Y Combinator, head to head
Social StartsY Combinator
Portfolio companies1375,151
Funding rounds joined03,388
Rounds led02,960
Rounds, last 12 months0579
Typical round it comes in atn/aunder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed0%98%
Series A0%1%
Series B0%0%
Growth0%1%

Social StartsY Combinator

Show as a table
Entry stages of Social Starts and Y Combinator, share of entries
Social StartsY Combinator
Pre-seed0%0%
Seed0%98%
Series A0%1%
Series B0%0%
Growth0%1%

Themes

share of checked companies
AI & Machine Learning11%26%
Healthcare & Biotech26%11%
Fintech7%13%
Education12%5%
Enterprise Software4%10%
Media & Entertainment9%3%

Social StartsY Combinator

Show as a table
Themes of Social Starts and Y Combinator, share of checked companies
Social StartsY Combinator
AI & Machine Learning11%26%
Healthcare & Biotech26%11%
Fintech7%13%
Education12%5%
Enterprise Software4%10%
Media & Entertainment9%3%

Companies both back

9

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 Social Starts 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/socialstarts.com/portfolio

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