In a statement, JJ Gallagher said it sees the rescue centre as "an important entity" and will continue its "longstanding support for it, both financially and operationally".
There will also be state-focused marketing, consumer outreach and support hotlines, and navigators to help with enrollment-regardless of which entity operates the exchange.
This entity, more commonly referred to as the PBGC, would collect fees and create a guarantee fund to support insolvent pension plans and their beneficiaries.