The $5 billion Long Island cooperative will convert from UltraData to Fiserv platform.
Core processors swap clients while Fiserv retains three credit unions.
Episys, Sharetec each pick up two, while Fiserv loses three and CU*Answers one.
California credit union had signed for the Acumen platform before Fiserv left that core behind after Open Solutions buy.
Four credit unions with combined assets of nearly $1B will convert to the account processing platform.
Suburban Detroit credit union commits to new account processing platform.
Company says more than 100 clients for new service. Massachusetts credit union stays with Portico.
The $1.3 billion Phoenix credit union cites third-party integration, infrastructure in decision to change core processors.
Carson City credit union is fourth to commit to processing platform.
Rhode Island credit union first billion-dollar client to commit since Open Solutions sold to Fiserv in January.