Cain came home to Raleigh in January after serving three and half years as an ambassador in Copenhagen for the administration of former President George W. Bush.
A corporate lawyer by trade, Cain may be best known as the former president of the Carolina Hurricanes for two years.
Cain plans to divide his time among the firm's offices in Washington, New York and Raleigh. He has also formed his own marketing firm, Cain Global Partners, LLC, to encourage and assist foreign companies willing to invest in the United States.
Cain has long been active in Republican politics, as a supporter of the late Sen. Jesse Helms and as a fundraiser for Bush, former Sen. Elizabeth Dole and others. His name has been bandied about in the past as a potential GOP candidate for governor.