The banking arm of Huntington Bancshares Inc. has agreed to hire Fiserv Inc. to support its health savings account operations.

Huntington, Columbus, Ohio, is a midsize regional bank holding company with $35 billion in assets and 380 branch offices.

Fiserv, Brookfield, Wis., will handle the technology services and other services that Huntington needs to offer HSAs through employers and directly to individual consumers, Fiserv says.