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Investors / Atlantic / Compare with Y Combinator

Atlantic vs Y Combinator

Atlantic lists 100 portfolio companies and has joined 12 funding rounds; Y Combinator lists 5,153 companies and has joined 3,388 rounds. Atlantic comes in most often at Seed (33% of its entries), Y Combinator comes in most often at Seed (98% of its entries). 5 companies are on both portfolios, among them Alguna, Kapacity Io and lmnr.ai.

100Portfolio companies5,153
12Funding rounds joined3,388
4Rounds led2,960
9Rounds, last 12 months579
$5M to $20MTypical round it comes in atunder $1M
0%Sites no longer answering0%
Show as a table
Atlantic and Y Combinator, head to head
AtlanticY Combinator
Portfolio companies1005,153
Funding rounds joined123,388
Rounds led42,960
Rounds, last 12 months9579
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-seed17%0%
Seed33%98%
Series A25%1%
Series B25%0%
Growth0%1%

AtlanticY Combinator

Show as a table
Entry stages of Atlantic and Y Combinator, share of entries
AtlanticY Combinator
Pre-seed17%0%
Seed33%98%
Series A25%1%
Series B25%0%
Growth0%1%

Themes

share of checked companies
AI & Machine Learning24%26%
Healthcare & Biotech14%11%
Fintech9%13%
Enterprise Software5%10%
Industrial & Manufacturing10%4%
E-commerce & Marketplaces5%5%

AtlanticY Combinator

Show as a table
Themes of Atlantic and Y Combinator, share of checked companies
AtlanticY Combinator
AI & Machine Learning24%26%
Healthcare & Biotech14%11%
Fintech9%13%
Enterprise Software5%10%
Industrial & Manufacturing10%4%
E-commerce & Marketplaces5%5%

Companies both back

5

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 Atlantic 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/atlantic.vc/portfolio

# also
GET /v1/firms/ycombinator.com/portfolio
GET /v1/firms/atlantic.vc/coinvestors
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