SUSSEX, Wis., June 24, 2025 /PRNewswire/ -- Quad/Graphics, Inc. (NYSE: QUAD), a marketing experience company that solves complex marketing challenges for its clients, celebrates its inclusion at number 21 in Ad Age's prestigious ranking of the largest agency companies. "Marketing is incredibly complex today and clients are under enormous pressure to drive growth, yet most CMOs feel like they have to choose between close collaboration with senior talent at a boutique agency or the full-funnel capabilities of ...