Investors / Addition / Compare with RoundX
Addition vs RoundX
Addition lists 21 portfolio companies and has joined 26 funding rounds; RoundX lists 19 companies and has joined 0 rounds. Addition comes in most often at Growth (50% of its entries). 1 company is on both portfolios, among them Anthropic.
21Portfolio companies19
26Funding rounds joined0
13Rounds led0
13Rounds, last 12 months0
$20M to $100MTypical round it comes in atn/a
0%Sites no longer answering0%
Show as a table
| Addition | RoundX | |
|---|---|---|
| Portfolio companies | 21 | 19 |
| Funding rounds joined | 26 | 0 |
| Rounds led | 13 | 0 |
| Rounds, last 12 months | 13 | 0 |
| Typical round it comes in at | $20M to $100M | n/a |
| Sites no longer answering | 0% | 0% |
Where they come in
share of entries by stagePre-seed0%0%
Seed0%0%
Series A23%0%
Series B27%0%
Growth50%0%
AdditionRoundX
Show as a table
| Addition | RoundX | |
|---|---|---|
| Pre-seed | 0% | 0% |
| Seed | 0% | 0% |
| Series A | 23% | 0% |
| Series B | 27% | 0% |
| Growth | 50% | 0% |
Themes
share of checked companiesAI & Machine Learning24%19%
Fintech11%19%
Healthcare & Biotech14%13%
Industrial & Manufacturing11%3%
Enterprise Software8%9%
E-commerce & Marketplaces5%6%
AdditionRoundX
Show as a table
| Addition | RoundX | |
|---|---|---|
| AI & Machine Learning | 24% | 19% |
| Fintech | 11% | 19% |
| Healthcare & Biotech | 14% | 13% |
| Industrial & Manufacturing | 11% | 3% |
| Enterprise Software | 8% | 9% |
| E-commerce & Marketplaces | 5% | 6% |
Companies both back
1Shared 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 Addition and RoundX 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
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/addition.com/portfolio
# also
GET /v1/firms/roundx.io/portfolio
GET /v1/firms/addition.com/coinvestors