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Investors / 1confirmation / Compare with Day One Ventures

1confirmation vs Day One Ventures

1confirmation lists 48 portfolio companies and has joined 6 funding rounds; Day One Ventures lists 7 companies and has joined 7 rounds. 1confirmation comes in most often at Seed (80% of its entries), Day One Ventures comes in most often at Seed (43% of its entries). 1 company is on both portfolios, among them World.

48Portfolio companies7
6Funding rounds joined7
2Rounds led0
1Rounds, last 12 months1
$5M to $20MTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
1confirmation and Day One Ventures, head to head
1confirmationDay One Ventures
Portfolio companies487
Funding rounds joined67
Rounds led20
Rounds, last 12 months11
Typical round it comes in at$5M to $20M$5M to $20M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed80%43%
Series A20%43%
Series B0%0%
Growth0%14%

1confirmationDay One Ventures

Show as a table
Entry stages of 1confirmation and Day One Ventures, share of entries
1confirmationDay One Ventures
Pre-seed0%0%
Seed80%43%
Series A20%43%
Series B0%0%
Growth0%14%

Themes

share of checked companies
Fintech44%18%
AI & Machine Learning9%27%
Industrial & Manufacturing0%18%
Crypto & Web310%0%
Enterprise Software9%9%
Legal & Compliance0%9%

1confirmationDay One Ventures

Show as a table
Themes of 1confirmation and Day One Ventures, share of checked companies
1confirmationDay One Ventures
Fintech44%18%
AI & Machine Learning9%27%
Industrial & Manufacturing0%18%
Crypto & Web310%0%
Enterprise Software9%9%
Legal & Compliance0%9%

Companies both back

1

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 1confirmation and Day One 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.

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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/1confirmation.com/portfolio

# also
GET /v1/firms/dayoneventures.com/portfolio
GET /v1/firms/1confirmation.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing