/

Investors / SOSV / Compare with The51

SOSV vs The51

SOSV lists 603 portfolio companies and has joined 37 funding rounds; The51 lists 30 companies and has joined 4 rounds. SOSV comes in most often at Seed (91% of its entries), The51 comes in most often at Seed (100% of its entries). 2 companies are on both portfolios, among them GroundedAI and Hyivy Health.

603Portfolio companies30
37Funding rounds joined4
6Rounds led0
24Rounds, last 12 months3
$1M to $5MTypical round it comes in at$1M to $5M
0%Sites no longer answering0%
Show as a table
SOSV and The51, head to head
SOSVThe51
Portfolio companies60330
Funding rounds joined374
Rounds led60
Rounds, last 12 months243
Typical round it comes in at$1M to $5M$1M to $5M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed91%100%
Series A6%0%
Series B0%0%
Growth3%0%

SOSVThe51

Show as a table
Entry stages of SOSV and The51, share of entries
SOSVThe51
Pre-seed0%0%
Seed91%100%
Series A6%0%
Series B0%0%
Growth3%0%

Themes

share of checked companies
Healthcare & Biotech22%22%
AI & Machine Learning18%20%
Fintech5%12%
Industrial & Manufacturing11%6%
Education6%8%
Food & Agriculture7%0%

SOSVThe51

Show as a table
Themes of SOSV and The51, share of checked companies
SOSVThe51
Healthcare & Biotech22%22%
AI & Machine Learning18%20%
Fintech5%12%
Industrial & Manufacturing11%6%
Education6%8%
Food & Agriculture7%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

Free account · no card

Compare SOSV and The51 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/sosv.com/portfolio

# also
GET /v1/firms/the51.com/portfolio
GET /v1/firms/sosv.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing