ACI Worldwide

• ACI Completes Takeover of Online Resources Corp.

  By Marc Rapport  |  March 11, 2013

  New owner claims added strategic bill pay capabilities, broadened online banking portfolio; promises continued support and R&D.

• ACI Buys S1 Corp.

  By Marc Rapport  |  October 24, 2011

  After rejecting its initial bid this summer, S1 Corp. has agreed to be acquired by ACI Worldwide Inc., the electronic payments and online banking companies said.

• ACI Worldwide Buys S1 Corp.

  By Marc Rapport  |  October 3, 2011

  ACI Worldwide Inc. will buy S1 Corp., the companies announced Monday, and combine their global payments and online banking presence.

• Fundtech Sold to Private Equity Firm

  By Marc Rapport  |  September 15, 2011

  Deal puts apparent end to Fundtech-S1 Corp. merger; S1 also target of hostile takeover bid from ACI.

• S1 Says 'Bound' to Fundtech Merger Despite ACI Offer

  By Marc Rapport  |  July 27, 2011

  S1 Corp. says it will look at the takeover offer it got this week from ACI Worldwide but that its Fundtech merger plans remain in place.