Fun, a global payments infrastructure company operating in stealth since its 2022 founding, has raised $72 million in a Series A round co-led by Multicoin Capital and SignalFire. The company has built proprietary technology to become the payments backbone for platforms operating at a global scale, processing over $18 billion in transaction volume per year with a 99.999% success rate, supporting millions of users across more than 100 countries.
Fun powers deposits, withdrawals, and settlement flows for platforms including Polymarket, Lighter, and Aave, where payment performance directly impacts user behavior and platform growth. The company has built a unified payments layer delivering what it describes as the highest-converting deposit flow for global money applications.
The raise will support continued engineering investment, expansion into Asia-Pacific with a new Singapore office, and selective acquisitions to deepen the company’s infrastructure stack.
KEY QUOTES:
“Fun is focused on a simple but foundational problem: removing the technological barrier of value exchange. 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.”
Alex Fine, Founder and CEO, Fun
“Polymarket runs at a scale that breaks most payments infrastructure. We’ve evaluated every major payments company, and Fun is in a different category. They operate like an extension of our team. 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.”
Josh Stevens, VP of Engineering, Polymarket
