Interpublic Group of Companies ( IPG - Free Report ) There's going to be so much more to advertise in the next few months! With the world's largest economy about to re-open after an unprecedented shutdown, the marketing & advertising space will be getting a lot of business. Companies will want to harness as much of that pent-up demand as possible to make up for this year-long lull, so they're going to need a partner that knows what they're doing and has a track record of success.