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Investors / Index Ventures / Compare with Spark Capital

Index Ventures vs Spark Capital

Index Ventures lists 306 portfolio companies and has joined 125 funding rounds; Spark Capital lists 92 companies and has joined 78 rounds. Index Ventures comes in most often at Series A (30% of its entries), Spark Capital comes in most often at Growth (36% of its entries). 13 companies are on both portfolios, among them 7ai.com, Anrok and Anthropic.

306Portfolio companies92
125Funding rounds joined78
50Rounds led27
81Rounds, last 12 months46
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Index Ventures and Spark Capital, head to head
Index VenturesSpark Capital
Portfolio companies30692
Funding rounds joined12578
Rounds led5027
Rounds, last 12 months8146
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-seed0%2%
Seed22%12%
Series A30%34%
Series B21%16%
Growth27%36%

Index VenturesSpark Capital

Show as a table
Entry stages of Index Ventures and Spark Capital, share of entries
Index VenturesSpark Capital
Pre-seed0%2%
Seed22%12%
Series A30%34%
Series B21%16%
Growth27%36%

Themes

share of checked companies
AI & Machine Learning24%35%
Fintech18%13%
Enterprise Software12%8%
Cybersecurity6%9%
Healthcare & Biotech6%8%
E-commerce & Marketplaces7%3%

Index VenturesSpark Capital

Show as a table
Themes of Index Ventures and Spark Capital, share of checked companies
Index VenturesSpark Capital
AI & Machine Learning24%35%
Fintech18%13%
Enterprise Software12%8%
Cybersecurity6%9%
Healthcare & Biotech6%8%
E-commerce & Marketplaces7%3%

Companies both back

13

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 Index Ventures and Spark Capital 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/indexventures.com/portfolio

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