Sic 'Em was founded in 1986 by co-owners James Mercado and David Zeitman, who worked within the Omnicom empire before starting their own firm. The duo chose the name Sic 'Em Advertising to brand the firm as an aggressive, intense, determined, and unique company. Cry havoc and let slip the hounds of advertising. Sic 'Em Advertising provides a full range of services to clients including branding; strategic planning; print, TV, radio, and Internet advertising; media buying; design services, and direct marketing, but it won't bring your loafers to you. small, full-service ad firm's clients have included McDonald's, Oracle, Bally Total Fitness, and Logitech.