Gary Slack is chairman and CEO of Slack Barshinger, one of the nation’s leading integrated marketing communications agencies.

His firm's 80-person staff works expertly across the entire marketing communications spectrum to help business-to-business marketers build strong brands and create profitable demand.

Key clients include Aon, Dairy Management Inc., Diebold, Dow, eBay, FedEx, Fellowes, Google, Harris Bank, John Buck Company, Kerry Foods, New Holland Construction, PACK EXPO, PayPal, Research in Motion, Rewards Network, Tellabs, Underwriters Laboratories and USG.

For four consecutive years, Gary has been named one of the nation's top 100 most influential business marketing professionals by BtoB magazine, which also named Slack Barshinger one of the nation's top 3 midsize b-to-b agencies in 2005, 2006 and 2007.

Before founding the firm in 1988, Gary held senior-management positions in Chicago and Washington, DC, with Omnicom agencies Doremus & Co. and Porter/Novelli.