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Investors / Andreessen Horowitz / Compare with Magnetar AI Ventures

Andreessen Horowitz vs Magnetar AI Ventures

Andreessen Horowitz lists 843 portfolio companies and has joined 814 funding rounds; Magnetar AI Ventures lists 10 companies and has joined 13 rounds. Andreessen Horowitz comes in most often at Seed (38% of its entries), Magnetar AI Ventures comes in most often at Growth (55% of its entries). 1 company is on both portfolios, among them OpenAI.

843Portfolio companies10
814Funding rounds joined13
518Rounds led5
214Rounds, last 12 months8
$20M to $100MTypical round it comes in at$100M or more
0%Sites no longer answering0%
Show as a table
Andreessen Horowitz and Magnetar AI Ventures, head to head
Andreessen HorowitzMagnetar AI Ventures
Portfolio companies84310
Funding rounds joined81413
Rounds led5185
Rounds, last 12 months2148
Typical round it comes in at$20M to $100M$100M or more
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed2%0%
Seed38%0%
Series A35%27%
Series B13%18%
Growth12%55%

Andreessen HorowitzMagnetar AI Ventures

Show as a table
Entry stages of Andreessen Horowitz and Magnetar AI Ventures, share of entries
Andreessen HorowitzMagnetar AI Ventures
Pre-seed2%0%
Seed38%0%
Series A35%27%
Series B13%18%
Growth12%55%

Themes

share of checked companies
AI & Machine Learning22%29%
Fintech16%0%
Cybersecurity7%14%
Industrial & Manufacturing3%14%
Space & Defense0%14%
Enterprise Software11%0%

Andreessen HorowitzMagnetar AI Ventures

Show as a table
Themes of Andreessen Horowitz and Magnetar AI Ventures, share of checked companies
Andreessen HorowitzMagnetar AI Ventures
AI & Machine Learning22%29%
Fintech16%0%
Cybersecurity7%14%
Industrial & Manufacturing3%14%
Space & Defense0%14%
Enterprise Software11%0%

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 Andreessen Horowitz and Magnetar AI 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/a16z.com/portfolio

# also
GET /v1/firms/magnetarventures.com/portfolio
GET /v1/firms/a16z.com/coinvestors
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