Startupsby GlyphWhy it ranks
How the rank works7signal of 100 · rising 7
- went through YCProgram · this site+4
- team of 2Team size · YC's directory+2.5
A sum of public facts, not a judgement and not investment advice.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
| Devtools | Inactive | YCF25 | |
| Devtools | Inactive | YCW26 | |
| Devtools | Inactive | YCX26 | |
| Devtools | Not stated | Seedcamp2019 | |
| Devtools | Active | YCS22 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
| Other | Not stated | EF2023 | |
| Other | Active | YCX26 | |
| SelfinShared: prediction market, eventYC F25ActiveOther | Other | Active | YCF25 |
| Other | Active | YCW26 | |
| Other | Active | YCX26 |
Also from X26 in Developer tools
All of X26| Company | Category | Status |
|---|---|---|
| Devtools | Active |
Founders
- Oscar LevyFounder/CEO
- Antonin ParrotFounder/CTO
About River Markets
River Markets is the prime brokerage for prediction markets. We aggregate every major event-contract venue into one account, giving professional traders best execution, portfolio and order management systems, and a unified API.
- YC batch
- X26 · Spring 2026
- Status, per YC
- Active
- Category
- Developer tools
- Team size
- 2
- Location
- San Francisco, CA, USA
- Founded
- 2026
- Checked
- 13h ago
River Markets: questions
Which YC batch was River Markets in?
River Markets was in Y Combinator's Spring 2026 batch (X26).
Is River Markets still active?
Y Combinator lists River Markets as active.
Who founded River Markets?
River Markets's founders, as listed on its YC page: Oscar Levy (Founder/CEO), Antonin Parrot (Founder/CTO).
Where is River Markets based?
River Markets lists San Francisco, CA, USA as its location on YC's directory.