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Investors / 15th Rock / Compare with HAX

15th Rock vs HAX

15th Rock lists 37 portfolio companies and has joined 3 funding rounds; HAX lists 165 companies and has joined 2 rounds. 15th Rock comes in most often at Series A (100% of its entries), HAX comes in most often at Seed (100% of its entries). 1 company is on both portfolios, among them Mechasys.

37Portfolio companies165
3Funding rounds joined2
2Rounds led1
3Rounds, last 12 months0
$1M to $5MTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
15th Rock and HAX, head to head
15th RockHAX
Portfolio companies37165
Funding rounds joined32
Rounds led21
Rounds, last 12 months30
Typical round it comes in at$1M to $5M$5M to $20M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed0%100%
Series A100%0%
Series B0%0%
Growth0%0%

15th RockHAX

Show as a table
Entry stages of 15th Rock and HAX, share of entries
15th RockHAX
Pre-seed0%0%
Seed0%100%
Series A100%0%
Series B0%0%
Growth0%0%

Themes

share of checked companies
Healthcare & Biotech23%19%
Industrial & Manufacturing7%22%
AI & Machine Learning20%17%
Fintech13%0%
Robotics & Hardware4%9%
Education7%9%

15th RockHAX

Show as a table
Themes of 15th Rock and HAX, share of checked companies
15th RockHAX
Healthcare & Biotech23%19%
Industrial & Manufacturing7%22%
AI & Machine Learning20%17%
Fintech13%0%
Robotics & Hardware4%9%
Education7%9%

Companies both back

1

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 15th Rock and HAX 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/15th-rock.com/portfolio

# also
GET /v1/firms/hax.co/portfolio
GET /v1/firms/15th-rock.com/coinvestors
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing