/

Investors / Altos Ventures / Compare with Big Sur Ventures

Altos Ventures vs Big Sur Ventures

Altos Ventures lists 122 portfolio companies and has joined 20 funding rounds; Big Sur Ventures lists 45 companies and has joined 4 rounds. Altos Ventures comes in most often at Series B (40% of its entries), Big Sur Ventures comes in most often at Seed (50% of its entries). 1 company is on both portfolios, among them Candex.

122Portfolio companies45
20Funding rounds joined4
12Rounds led1
14Rounds, last 12 months3
$5M to $20MTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
Altos Ventures and Big Sur Ventures, head to head
Altos VenturesBig Sur Ventures
Portfolio companies12245
Funding rounds joined204
Rounds led121
Rounds, last 12 months143
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%25%
Seed20%50%
Series A20%25%
Series B40%0%
Growth20%0%

Altos VenturesBig Sur Ventures

Show as a table
Entry stages of Altos Ventures and Big Sur Ventures, share of entries
Altos VenturesBig Sur Ventures
Pre-seed0%25%
Seed20%50%
Series A20%25%
Series B40%0%
Growth20%0%

Themes

share of checked companies
AI & Machine Learning19%14%
E-commerce & Marketplaces10%13%
Industrial & Manufacturing0%13%
Fintech11%11%
Enterprise Software10%11%
Education8%0%

Altos VenturesBig Sur Ventures

Show as a table
Themes of Altos Ventures and Big Sur Ventures, share of checked companies
Altos VenturesBig Sur Ventures
AI & Machine Learning19%14%
E-commerce & Marketplaces10%13%
Industrial & Manufacturing0%13%
Fintech11%11%
Enterprise Software10%11%
Education8%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

Free account · no card

Compare Altos Ventures and Big Sur 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.

Work email, sign-in link by email. Already have an account? Log in
  • 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/altos.vc/portfolio

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