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Investors / 645 Ventures / Compare with Mantis Venture Capital

645 Ventures vs Mantis Venture Capital

645 Ventures lists 81 portfolio companies and has joined 25 funding rounds; Mantis Venture Capital lists 131 companies and has joined 27 rounds. 645 Ventures comes in most often at Series A (46% of its entries), Mantis Venture Capital comes in most often at Series A (52% of its entries). 2 companies are on both portfolios, among them Edera and Project Omega.

81Portfolio companies131
25Funding rounds joined27
5Rounds led0
17Rounds, last 12 months16
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
645 Ventures and Mantis Venture Capital, head to head
645 VenturesMantis Venture Capital
Portfolio companies81131
Funding rounds joined2527
Rounds led50
Rounds, last 12 months1716
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%0%
Seed38%13%
Series A46%52%
Series B8%17%
Growth8%17%

645 VenturesMantis Venture Capital

Show as a table
Entry stages of 645 Ventures and Mantis Venture Capital, share of entries
645 VenturesMantis Venture Capital
Pre-seed0%0%
Seed38%13%
Series A46%52%
Series B8%17%
Growth8%17%

Themes

share of checked companies
AI & Machine Learning30%23%
Fintech12%20%
Healthcare & Biotech7%10%
Cybersecurity9%8%
Enterprise Software9%9%
Education6%0%

645 VenturesMantis Venture Capital

Show as a table
Themes of 645 Ventures and Mantis Venture Capital, share of checked companies
645 VenturesMantis Venture Capital
AI & Machine Learning30%23%
Fintech12%20%
Healthcare & Biotech7%10%
Cybersecurity9%8%
Enterprise Software9%9%
Education6%0%

Companies both back

2

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 645 Ventures and Mantis Venture 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/645ventures.com/portfolio

# also
GET /v1/firms/mantisvc.com/portfolio
GET /v1/firms/645ventures.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing