/

Investors / Mayfield / Compare with NFX

Mayfield vs NFX

Mayfield lists 133 portfolio companies and has joined 38 funding rounds; NFX lists 159 companies and has joined 44 rounds. Mayfield comes in most often at Series A (39% of its entries), NFX comes in most often at Seed (45% of its entries). 3 companies are on both portfolios, among them Lyft, Mammoth Biosciences and Poshmark.

133Portfolio companies159
38Funding rounds joined44
13Rounds led12
21Rounds, last 12 months22
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Mayfield and NFX, head to head
MayfieldNFX
Portfolio companies133159
Funding rounds joined3844
Rounds led1312
Rounds, last 12 months2122
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-seed3%0%
Seed36%45%
Series A39%40%
Series B10%8%
Growth13%8%

MayfieldNFX

Show as a table
Entry stages of Mayfield and NFX, share of entries
MayfieldNFX
Pre-seed3%0%
Seed36%45%
Series A39%40%
Series B10%8%
Growth13%8%

Themes

share of checked companies
AI & Machine Learning34%19%
Fintech7%18%
Healthcare & Biotech8%12%
Cybersecurity11%4%
Enterprise Software9%10%
Media & Entertainment4%6%

MayfieldNFX

Show as a table
Themes of Mayfield and NFX, share of checked companies
MayfieldNFX
AI & Machine Learning34%19%
Fintech7%18%
Healthcare & Biotech8%12%
Cybersecurity11%4%
Enterprise Software9%10%
Media & Entertainment4%6%

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

Free account · no card

Compare Mayfield and NFX 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/mayfield.com/portfolio

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