IOSG Ventures announced an investment in Fun, a fiat on- and off-ramp infrastructure provider, but did not disclose the amount. According to Foresight News, Fun offers embedded payment rails for online marketplaces, combining fiat channels, currencies, assets, wallets, and blockchain networks in one integration. Its services support deposits, withdrawals, cross-chain routing, and checkout. Fun currently handles all deposits and withdrawals for Polymarket and is also integrated with platforms including Lighter and Aave. The company processes an annualized volume of $100 billion and was founded by Alex Fine in 2022.