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Investors / Foresite Capital / Compare with Westlake BioPartners

Foresite Capital vs Westlake BioPartners

Foresite Capital lists 144 portfolio companies and has joined 17 funding rounds; Westlake BioPartners lists 16 companies and has joined 4 rounds. Foresite Capital comes in most often at Series A (38% of its entries), Westlake BioPartners comes in most often at Series A (75% of its entries). 2 companies are on both portfolios, among them Alumis and Latigo.

144Portfolio companies16
17Funding rounds joined4
1Rounds led2
10Rounds, last 12 months2
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Foresite Capital and Westlake BioPartners, head to head
Foresite CapitalWestlake BioPartners
Portfolio companies14416
Funding rounds joined174
Rounds led12
Rounds, last 12 months102
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%
Seed0%0%
Series A38%75%
Series B38%0%
Growth25%25%

Foresite CapitalWestlake BioPartners

Show as a table
Entry stages of Foresite Capital and Westlake BioPartners, share of entries
Foresite CapitalWestlake BioPartners
Pre-seed0%0%
Seed0%0%
Series A38%75%
Series B38%0%
Growth25%25%

Themes

share of checked companies
Healthcare & Biotech96%100%
Education1%0%
Fintech1%0%
Real Estate & Construction1%0%
Media & Entertainment1%0%
AI & Machine Learning1%0%

Foresite CapitalWestlake BioPartners

Show as a table
Themes of Foresite Capital and Westlake BioPartners, share of checked companies
Foresite CapitalWestlake BioPartners
Healthcare & Biotech96%100%
Education1%0%
Fintech1%0%
Real Estate & Construction1%0%
Media & Entertainment1%0%
AI & Machine Learning1%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 Foresite Capital and Westlake BioPartners 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/foresitecapital.com/portfolio

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