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 troncM and troncX segments. The troncM segment comprises of the company's media groups excluding their digital revenues and related expenses, except digital subscription revenues when bundled with a print subscription. The troncX segment includes all digital revenues and related expenses of the company from local tronc websites, third party websites, mobile applications, digital only subscriptions, Tribune Content Agency, and forsalebyowner.com. The company was founded in 1847 and is headquartered in Chicago, IL.