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Investors / Chapter One / Compare with Side Door Ventures

Chapter One vs Side Door Ventures

Chapter One lists 75 portfolio companies and has joined 7 funding rounds; Side Door Ventures lists 9 companies and has joined 3 rounds. Chapter One comes in most often at Seed (71% of its entries), Side Door Ventures comes in most often at Seed (67% of its entries). 1 company is on both portfolios, among them Modern Day Neobank.

75Portfolio companies9
7Funding rounds joined3
0Rounds led0
4Rounds, last 12 months1
$5M to $20MTypical round it comes in at$5M to $20M
0%Sites no longer answering0%
Show as a table
Chapter One and Side Door Ventures, head to head
Chapter OneSide Door Ventures
Portfolio companies759
Funding rounds joined73
Rounds led00
Rounds, last 12 months41
Typical round it comes in at$5M to $20M$5M to $20M
Sites no longer answering0%0%

Where they come in

share of entries by stage
Pre-seed0%0%
Seed71%67%
Series A29%33%
Series B0%0%
Growth0%0%

Chapter OneSide Door Ventures

Show as a table
Entry stages of Chapter One and Side Door Ventures, share of entries
Chapter OneSide Door Ventures
Pre-seed0%0%
Seed71%67%
Series A29%33%
Series B0%0%
Growth0%0%

Themes

share of checked companies
AI & Machine Learning19%29%
Fintech21%14%
Healthcare & Biotech5%14%
Cybersecurity12%0%
Education8%0%
Enterprise Software8%0%

Chapter OneSide Door Ventures

Show as a table
Themes of Chapter One and Side Door Ventures, share of checked companies
Chapter OneSide Door Ventures
AI & Machine Learning19%29%
Fintech21%14%
Healthcare & Biotech5%14%
Cybersecurity12%0%
Education8%0%
Enterprise Software8%0%

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 Chapter One and Side Door Ventures 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/chapterone.com/portfolio

# also
GET /v1/firms/sdv.vc/portfolio
GET /v1/firms/chapterone.com/coinvestors
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