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Investors / ARCH Venture Partners / Compare with Samsara BioCapital

ARCH Venture Partners vs Samsara BioCapital

ARCH Venture Partners lists 113 portfolio companies and has joined 40 funding rounds; Samsara BioCapital lists 36 companies and has joined 13 rounds. ARCH Venture Partners comes in most often at Series A (34% of its entries), Samsara BioCapital comes in most often at Series B (62% of its entries). 4 companies are on both portfolios, among them Autobahn Therapeutics, Gossamer Bio and Parabilis Medicines.

113Portfolio companies36
40Funding rounds joined13
17Rounds led3
25Rounds, last 12 months11
$100M or moreTypical round it comes in at$100M or more
0%Sites no longer answering0%
Show as a table
ARCH Venture Partners and Samsara BioCapital, head to head
ARCH Venture PartnersSamsara BioCapital
Portfolio companies11336
Funding rounds joined4013
Rounds led173
Rounds, last 12 months2511
Typical round it comes in at$100M or more$100M or more
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed11%0%
Series A34%23%
Series B34%62%
Growth20%15%

ARCH Venture PartnersSamsara BioCapital

Show as a table
Entry stages of ARCH Venture Partners and Samsara BioCapital, share of entries
ARCH Venture PartnersSamsara BioCapital
Pre-seed0%0%
Seed11%0%
Series A34%23%
Series B34%62%
Growth20%15%

Themes

share of checked companies
Healthcare & Biotech91%100%
AI & Machine Learning3%0%
Industrial & Manufacturing2%0%
Fintech2%0%
Real Estate & Construction1%0%
Cybersecurity1%0%

ARCH Venture PartnersSamsara BioCapital

Show as a table
Themes of ARCH Venture Partners and Samsara BioCapital, share of checked companies
ARCH Venture PartnersSamsara BioCapital
Healthcare & Biotech91%100%
AI & Machine Learning3%0%
Industrial & Manufacturing2%0%
Fintech2%0%
Real Estate & Construction1%0%
Cybersecurity1%0%

Companies both back

4

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 ARCH Venture Partners and Samsara BioCapital 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/archventure.com/portfolio

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