Fun Raises $72 Million in Series A to Power Financial Services
May 2, 2026 | By Startuprise io

Fun, a payments company that supports major online capital markets like Polymarket, has raised $72 million in a Series A funding round. The round was co-led by Multicoin Capital and SignalFire, with Participation from Streamlined, Infinity Ventures, Cory Levy, JAM Fund, Pharsalus Capital, and others.
The company plans to use the funds to invest more in engineering, expand into the Asia-Pacific region with a new office in Singapore, and make selective acquisitions to strengthen its infrastructure.
As demand grows across fintech, trading platforms, and digital asset apps, Fun is becoming the payment layer for a new generation of financial services, managing the complexity of moving money so platforms can focus on their main products.
Fun has been operating quietly while building its own technology to support global payment systems. Today it handles deposits, withdrawals, and settlements for platforms like Polymarket, Lighter and Aave, where payment performance affects user experience, and growth. The company processes over $18 billion in transactions each year and serves millions of users in more than 100 countries.
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“Financial markets have driven global prosperity for decades, but the systems behind them have not kept pace,” continued Fine. “They were built for a slower, more fragmented world. Different rails, different currencies, different systems that do not interoperate. That fragmentation shows up as friction, which is the enemy of conversion. Fun has solved that problem.”
"Polymarket runs at a scale that breaks most payment infrastructure,” said Josh Stevens, VP of Engineering at Polymarket. “We've evaluated every major payments company, and Fun is in a different category. They operate like an extension of our team, building around real user behavior and catching edge cases others miss. They are meticulous about every detail. At our size, every percentage point of conversion is millions of dollars and millions of users, and every reliability failure becomes a public conversation. Fun has built the highest converting most reliable deposit flow we've ever had."
“Fun is focused on a simple but foundational problem, removing the technological barrier of value exchange,” said Founder, and CEO Alex Fine. “The infrastructure for moving money has not kept up with how the world actually works. We are building a system where value moves instantly, globally, and without friction”.
About Fun
Founded in 2022 by Alex F., Fun is a global payments infrastructure company that supports the next generation of financial services by helping platforms move money across both traditional (fiat), and digital asset systems at scale. The company processes over $18 billion in transactions each year, with a 99.999% success rate, and serves millions of users across more than 100 countries.
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