Fiserv and Symitar, a division of Jack Henry & Associates, dominate the core processing business for credit unions, and these graphics from Callahan & Associates show just how much. (Click on each graph to enlarge.)

According to Callahan’s 2014 Market Share Guide/Credit Union Core Processing, Fiserv, which built its business through two decades of acquisitions before consolidating its credit union divisions a couple years ago and then buying Open Solutions last year, has the lion’s share of the market overall, providing core processing services to about 2,400 of the nation’s 7,000 or so credit unions.

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