Which banks does USDC use?

Could you please clarify which financial institutions are partnered with or utilized by the USDC stablecoin for its operations? I'm particularly interested in understanding the banking infrastructure that supports the issuance, redemption, and overall stability of this digital asset. Additionally, are there any specific requirements or criteria that these banks must meet in order to work with USDC? It would be valuable to know the extent of their involvement and the role they play in maintaining the integrity and trustworthiness of this cryptocurrency.