With the merger concluded, Aon Corporation and Hewitt Associates, Inc. are now: Aon Hewitt.

Aiming to be the global leader in human capital solutions, the two companies combined revenues for fiscal year 2009 consist of 49% from consulting services, 40% from benefits administration and 11% from HR business process outsourcing.

The company predicts the cost savings of the merger will be approximately $355 across Aon Hewitt in 2013, primarily from reduction in back office areas, public company costs, management overlap and leverage of technology platforms.

“Through Aon Hewitt, we will provide our clients with a broader portfolio of innovative products and services focused on what we believe are two of the most important topics facing today’s global economy—risk and people,” says Greg Case, president CEO of Aon.