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Investors / Deep33 / Compare with Protagonist

Deep33 vs Protagonist

Deep33 lists 16 portfolio companies and has joined 2 funding rounds; Protagonist lists 15 companies and has joined 7 rounds. Deep33 comes in most often at Seed (50% of its entries), Protagonist comes in most often at Seed (43% of its entries). 2 companies are on both portfolios, among them Atoms and fab2.

16Portfolio companies15
2Funding rounds joined7
1Rounds led1
2Rounds, last 12 months2
$20M to $100MTypical round it comes in at$20M to $100M
0%Sites no longer answering0%
Show as a table
Deep33 and Protagonist, head to head
Deep33Protagonist
Portfolio companies1615
Funding rounds joined27
Rounds led11
Rounds, last 12 months22
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%
Seed50%43%
Series A0%43%
Series B50%0%
Growth0%14%

Deep33Protagonist

Show as a table
Entry stages of Deep33 and Protagonist, share of entries
Deep33Protagonist
Pre-seed0%0%
Seed50%43%
Series A0%43%
Series B50%0%
Growth0%14%

Themes

share of checked companies
AI & Machine Learning38%24%
Fintech3%20%
Healthcare & Biotech16%4%
Cybersecurity9%12%
Industrial & Manufacturing6%8%
Robotics & Hardware6%8%

Deep33Protagonist

Show as a table
Themes of Deep33 and Protagonist, share of checked companies
Deep33Protagonist
AI & Machine Learning38%24%
Fintech3%20%
Healthcare & Biotech16%4%
Cybersecurity9%12%
Industrial & Manufacturing6%8%
Robotics & Hardware6%8%

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 Deep33 and Protagonist 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/deep33.com/portfolio

# also
GET /v1/firms/protagonist.co/portfolio
GET /v1/firms/deep33.com/coinvestors
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