The salesman, Birj Deckmejian, faces
A federal jury reached its decision after three days of deliberations.
The charges came in connection with a long-running U.S. Department of Justice investigation of kickbacks in the point-of-sale industry that had victimized agencies and liquor and tobacco companies.
Mr. Steinmetz's former supervisor, Mitch Mosallem, 59, who headed graphic services at Grey, and Joseph Panaccione, Grey's vice president and manager of graphics services, earlier pleaded guilty.
Earlier Barry Holland, a former vice president at Viacom's Viacom Outdoor Group, pleaded guilty to participating in a scheme to accept kickbacks in exchange for steering printing contracts to Color Wheel. Haluk Ergulek, founder and former owner of Color Wheel, also pleaded guilty and was sentenced in March to 37 months in prison.