Perpetual and Resimac are distinct corporate entities operating within the financial services sector, though they frequently interact in professional capacities such as securitization, trust management, and institutional lending. Perpetual Limited operates as a major Australian financial services firm specializing in funds management, trustee services, and wealth advice, whereas Resimac Group is a leading non-bank specialist mortgage lender. While Perpetual Trustee companies occasionally act in custodial or administrative roles for residential mortgage-backed securities programs issued by non-bank originators, Resimac maintains an entirely separate corporate existence and operational framework.