"The power of this new company has far greater reach than I imagined when we decided to put it together," said Frank J. Bisignano, the former chief executive of First Data who is now president and chief operating officer of Brookfield, Wis.-based Fiserv. Bisignano made his comments with Jeffery W. Yabuki, the long-time Fiserv chief executive who retains that title in the combined company, which held its first quarterly earnings conference call late Wednesday.