Weber Shandwick is a marketing communications firm formed in 2001 by merging the Weber Group, Shandwick International and BSMG. The company is part of global agency network Interpublic Group (IPG), as part of the parent company's IPG DXTRA operating division. History. Shandwick International, founded in 1974, was acquired by IPG in 1998. In September 2000, IPG announced it was merging Shandwick with IPG's Weber Group, itself founded in 1974, to form Weber Shandwick.
https://en.wikipedia.org/wiki/Weber_Shandwick