Fun, the payments infrastructure bridging fiat and digital assets, raises Series A

Fun Raises Series A Round

Fun, a New York-based payments infrastructure company, has raised a Series A round. The round was disclosed on October 26, 2026, with IOSG Ventures participating as an investor. The company did not disclose the amount raised, and no lead investor was named.

What Fun Does

Fun builds unified deposit, withdrawal, and settlement rails that span fiat currencies and digital assets. The company describes its offering as an API-first money layer designed for high-volume consumer platforms.

According to the company, its infrastructure powers platforms including Polymarket, Lighter, and Aave, and processes more than $18 billion in annual transaction volume across more than 100 countries.

Fun positions itself as a neutral bridge between banks, stablecoins, and onchain markets, aimed at fintechs adopting tokenized money. The company was founded in 2022 by Stanford dropout Alex Fine.

Deal Context

• Company: Fun
• Sector: Payments infrastructure spanning fiat and digital assets
• Headquarters: New York
• Stage: Series A
• Round type: Undisclosed
• Amount: Not disclosed
• Announced: October 26, 2026
• Investor: IOSG Ventures
• Lead investor: Not disclosed

Why It Matters for Acquirers

Fun sits at an intersection that has become strategically important: the settlement layer connecting traditional banking rails, stablecoins, and onchain markets. Companies that control this connective infrastructure can capture value from transaction flow regardless of which specific asset form dominates.

The disclosed metrics — more than $18 billion in annual transaction volume and operations across more than 100 countries — point to meaningful production scale rather than a pilot-stage product. For acquirers interested in payments, stablecoin settlement, or onchain financial infrastructure, a company with live volume and named platform integrations is a more tangible target than one still building toward launch.

The API-first model is also relevant to acquisition strategy. Infrastructure that other platforms integrate directly tends to create switching costs and embedded distribution, which can make the asset more defensible than a consumer-facing product.

Considerations

The undisclosed round size and the absence of a named lead investor limit visibility into the deal's structure and valuation. Acquirers would need to look beyond the announcement to understand capitalization, investor rights, and the composition of the cap table.

Fun's positioning as a neutral bridge across banks, stablecoins, and onchain markets also implies regulatory exposure across multiple jurisdictions, given its stated footprint of more than 100 countries. Diligence would reasonably focus on licensing, compliance posture, and counterparty relationships on both the fiat and digital asset sides.

Summary

Fun has raised a Series A with IOSG Ventures participating, announced October 26, 2026. The New York-based company provides API-first payment rails connecting fiat currencies and digital assets, reports over $18 billion in annual transaction volume across more than 100 countries, and counts Polymarket, Lighter, and Aave among the platforms its infrastructure powers. The round amount and lead investor were not disclosed.