Tribune Publishing Co. is a multiplatform media and marketing solutions company, which engages in the publication of daily newspapers and community publications. It operates through the M and X segments. The M segment comprises of the company's media groups excluding their digital revenues and related expenses, except digital subscription revenues when sold with a print subscription. The X segment includes digital revenues and related digital expenses from local Tribune websites, third-party websites, mobile applications, digital only subscriptions, Tribune Content Agency (TCA), and BestReviews. The company was founded in 1847 and is headquartered in Chicago, IL.