They are a consortium owned by 20 of the world’s largest commercial banks. They are a direct competitor to the Federal Reserve as it relates to payment infrastructure.
https://en.wikipedia.org/wiki/The_Clearing_House
https://www.moderntreasury.com/learn/tch
RTP has ~1260 participants as of mid 2026.
https://www.theclearinghouse.org/payment-systems/rtp/RTP-Par...