At around 4:30 AM, local box 12-60 was dispatched to 181 Rittenhouse Circle in the Keystone Industrial Park. Shortly after the dispatch, it was reported that there was a fire in the building, leading to an upgrade of the box. Deputy 12 arrived on scene and reported heavy smoke emanating from a large industrial building. Squad 44 deployed a 2.5” hose into service. Ladders 10 and 11 were extended to the roof. Units E82, E7, E52, E44, L10, L11, Sq13, T8, and T14 were also dispatched to the scene. A special thank you to all the responding companies for their efforts.