A wide array of financial institutions participate in the InstaPay network, including major universal and commercial banks, thrift banks, rural banks, digital-exclusive banks, and authorized non-bank electronic money issuers. Prominent members feature large domestic and international institutions such as the Bank of the Philippine Islands, BDO Unibank, Land Bank of the Philippines, Metrobank, Union Bank, alongside popular digital platforms like GCash and Maya. A comprehensive, up-to-date registry of all participating entities is publicly maintained by the clearing switch operators and central payment authorities.