The Founder Tape.

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River Markets · The Founder Tape · The Founder Tape

The Founder Tape.

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On the tape

YC Spring 2026Seed$500KAug 2026191 views

River Markets

Prime brokerage for prediction markets

rivermarkets.com ↗YC profile ↗

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Company intel

About River Markets

What they build

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.

Field & market

Sector

Fintech

Tags

Launch video

Funding

Seed$500K
Led by Y Combinator

Founders

Founder details are being added. Check the YC profile or company website for the team.

Quick links

rivermarkets.com
YC profile
Launch video (YouTube)

At a glance

YC batch: Spring 2026
Industry: Fintech
Focus: Fintech
HQ: San Francisco, CA, USA
Team size: 2
Status: Active

Investors

Y Combinator

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