NEW YORK: Interpublic Group's Constituency Management Group (CMG) unit, which includes its PR firms, reported a fourth-quarter organic revenue increase of 11% to $321.1 million.

For the full year, CMG posted total revenue of $1.1 billion, increasing 9.8% organically.

Harris Diamond, CEO of CMG and Weber Shandwick, said that the division's Q4 growth was “far higher than what we expected.” Its biggest driver was organic growth with existing clients, he said.

“New business is always the lifeboat of the ...