Revenue was $104.5m in the first quarter of 2011, compared to $87.74m over the prior-year quarter revenue.

In the first quarter of 2011, the operating income was $7.5m, compared to an operating loss of $0.9m in the corresponding quarter of March 2010.

ACI Worldwide CEO Philip Heasley said that first quarter sales and backlog growth over prior-year quarter continues to demonstrate the appeal of ACI’s strategy and product solutions suite as it increases the number of new payment applications owned by each of the existing customers.

Operating expenses were $97.0m in the first March 2011 quarter quarter of 2011, compared to $88.6m in the same quarter of the last year.