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Investors / Andreessen Horowitz / Compare with OpenAI Startup Fund

Andreessen Horowitz vs OpenAI Startup Fund

Andreessen Horowitz lists 841 portfolio companies and has joined 814 funding rounds; OpenAI Startup Fund lists 19 companies and has joined 26 rounds. Andreessen Horowitz comes in most often at Seed (38% of its entries), OpenAI Startup Fund comes in most often at Series A (47% of its entries). 3 companies are on both portfolios, among them Adaptive Security, Ambience and Harvey.

841Portfolio companies19
814Funding rounds joined26
518Rounds led10
214Rounds, last 12 months13
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Andreessen Horowitz and OpenAI Startup Fund, head to head
Andreessen HorowitzOpenAI Startup Fund
Portfolio companies84119
Funding rounds joined81426
Rounds led51810
Rounds, last 12 months21413
Typical round it comes in at$20M to $100M$20M to $100M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed2%0%
Seed38%26%
Series A35%47%
Series B13%11%
Growth12%16%

Andreessen HorowitzOpenAI Startup Fund

Show as a table
Entry stages of Andreessen Horowitz and OpenAI Startup Fund, share of entries
Andreessen HorowitzOpenAI Startup Fund
Pre-seed2%0%
Seed38%26%
Series A35%47%
Series B13%11%
Growth12%16%

Themes

share of checked companies
AI & Machine Learning22%33%
Fintech16%6%
Healthcare & Biotech11%15%
Enterprise Software11%9%
Cybersecurity7%9%
Space & Defense0%9%

Andreessen HorowitzOpenAI Startup Fund

Show as a table
Themes of Andreessen Horowitz and OpenAI Startup Fund, share of checked companies
Andreessen HorowitzOpenAI Startup Fund
AI & Machine Learning22%33%
Fintech16%6%
Healthcare & Biotech11%15%
Enterprise Software11%9%
Cybersecurity7%9%
Space & Defense0%9%

Companies both back

3

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 Andreessen Horowitz and OpenAI Startup Fund 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/a16z.com/portfolio

# also
GET /v1/firms/openai.fund/portfolio
GET /v1/firms/a16z.com/coinvestors
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