River Markets
New accelerator entry · 2026-05-20 · the record
In their words
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.
What the record says
River Markets lists 1 open role on its directory entry.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
Against the 38 companies on file from Spring 2026. Median team 2, largest 14.
The nearest companies on file from the same batch, side by side with this one.
| Company | Batch | Sectors | Listed |
|---|---|---|---|
| Tolmo | Spring 2026 | DevSecOps, Security, AI | 2026-06-17 |
| Savant | Spring 2026 | — | 2026-06-12 |
| Linzumi | Spring 2026 | Artificial Intelligence, Developer Tools, Chat | 2026-06-11 |
| Ploy | Spring 2026 | — | 2026-06-08 |
| Akkari | Spring 2026 | — | 2026-06-04 |
| River Markets (this page) | Spring 2026 | — | 2026-05-20 |
Click a column heading to sort. Comparison is against records held here, not against every company that exists.
The full profile
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Sourced from the company's Y Combinator directory entry. Figures are read directly from the source record; names have not been matched against other people.