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Investors / SixThirty / Compare with Y Combinator

SixThirty vs Y Combinator

SixThirty lists 7 portfolio companies and has joined 7 funding rounds; Y Combinator lists 5,153 companies and has joined 3,388 rounds. SixThirty comes in most often at Series A (57% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 2 companies are on both portfolios, among them Aiprise and Angle Health.

7Portfolio companies5,153
7Funding rounds joined3,388
1Rounds led2,960
4Rounds, last 12 months579
$5M to $20MTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
SixThirty and Y Combinator, head to head
SixThirtyY Combinator
Portfolio companies75,153
Funding rounds joined73,388
Rounds led12,960
Rounds, last 12 months4579
Typical round it comes in at$5M to $20Munder $1M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed14%98%
Series A57%1%
Series B14%0%
Growth14%1%

SixThirtyY Combinator

Show as a table
Entry stages of SixThirty and Y Combinator, share of entries
SixThirtyY Combinator
Pre-seed0%0%
Seed14%98%
Series A57%1%
Series B14%0%
Growth14%1%

Themes

share of checked companies
Fintech64%13%
AI & Machine Learning21%26%
Healthcare & Biotech7%11%
Enterprise Software0%10%
Legal & Compliance7%0%
Education0%5%

SixThirtyY Combinator

Show as a table
Themes of SixThirty and Y Combinator, share of checked companies
SixThirtyY Combinator
Fintech64%13%
AI & Machine Learning21%26%
Healthcare & Biotech7%11%
Enterprise Software0%10%
Legal & Compliance7%0%
Education0%5%

Companies both back

2

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

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Compare SixThirty 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.

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  • 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/sixthirty.co/portfolio

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