Announcing Colosseum's Accelerator Cohort 4

Announcing Colosseum's Accelerator Cohort 4

We are excited to unveil Colosseum's fourth accelerator cohort. The batch is composed of winning founders from the recent Solana Cypherpunk Hackathon and our ongoing Eternal competition. 1,576 teams submitted products in the hackathon, along with an addition 64 submissions from Eternal in H2 2025.

From the pool of winners, Colosseum selected 11 total startups to invest in and accept into the accelerator program, which means the program acceptance rate was roughly 0.67%. We believe each of these startups has exhibited the technical talent, speed, vision, and competitive drive required to build successful, enduring products that will significantly grow the Solana ecosystem and broader onchain economy.

In no particular order, the following startups will be joining Colosseum Cohort 4:

MCPay

MCPay provides Model Context Protocol tools, data sources, and specialized agent capabilities using x402.

Synthesis

Synthesis is a high-performance prediction market aggregation trading platform. Synthesis was chosen from the pool of submissions from our rolling Eternal program.

Unruggable

Unruggable is a next generation hardware wallet and companion app built for Solana.

Rekt

Rekt is a mobile app that gives everyday users access to better buying power through simple, gamified crypto trading.

Cloak

Cloak is building a privacy layer for the crypto ecosystem using a ZKP system that runs at the speed of Solana.

Credible

Credible is building a stablecoin-powered remittance platform that is built for banks, fintechs, and other businesses looking to send money in/out of India.

Yumi Finance

Yumi Finance is a fully onchain “buy now, pay later” solution that handles underwriting, financing, loan origination and servicing of bad debt.

Superfan

Superfan is a meta-record label, enabling rising and established artists to have a much more direct financial relationship with their fans globally.

Kormos

Kormos is a new DeFi platform that brings higher yields without leverage to Solana utilizing a fractional reserves primitive.

Capitola

Capitola is a prediction markets meta-aggregator that enables users to trade all events at the best price.

Archer

Archer is a new batch auction exchange primitive that delivers the competitive prices for traders.


Over the 8 week program online and in our San Francisco office, these founders will progress from devnet to mainnet as they continue to iterate, test, and refine their products. The accelerator program will culminate in a private demo day for investors across the venture ecosystem. Shortly after, we will release a recording of the event for the broader crypto community.

Congrats and welcome to Colosseum’s founder community!